1.0 roof removal / metal & concrete deck 33...2.10 **the floor of the gymnasium (roof area 3)...

Centennial School District Klinger Middle School Roof Replacement Specifications Section 075216

ROOF AREAS 3, 6, 7 & 12

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METHOD SPECIFICATONS, PARTIAL ROOF REPLACEMENT AT THE KLINGER MIDDLE SCHOOL, CENTENNIAL SCHOOL DISTRICT: 1.0 ROOF REMOVAL / METAL & CONCRETE DECK: 1.1 No more roof area than can be made into a watertight condition will be removed in a single day. Set-up areas are shown on the drawings. 1.2 Contractor will have trucks or dumpsters available for removal of debris. Roof debris will not be stored on the roof or on adjacent roof areas. 1.3 Roof removal will not be started unless materials are on site for installation of new roof. Existing roof systems will be removed to the metal and concrete decks. Existing lightweight concrete crickets will be removed. 1.4 Removal: a. Metal Decks (Roof Areas 3, 6 & 7) - Where the existing roof system will be removed to the steel deck, repair defects as required. Flutes of the steel deck will have any water removed and flutes will be examined for rust. Where rust is found, the deck will be treated with Red Oxide Primer applied at 300 square feet per gallon. Primer will be allowed to dry. Any steel decking that is rusted through will be called to the attention of the Project Manager. Areas of heavy scaling rust will be wire brushed prior to application of primer. Unattached steel decking will be re-secured with Tek-3 screws. b. Concrete Deck (Roof Area 12) - The existing roof system will be removed to the concrete decking. On Concrete Decks, removal may be planned for maximum production. Repair defects as required. Deteriorated or cracked decking will be brought to the attention of the Project Manager. 1.5 Obsolete equipment removal will require repair of any voids in the deck the same day. Barricades will be securely placed around the decking voids and will be at least four feet high and clearly marked "Danger". Barricades will be positioned immediately after removal of equipment. 1.6 Old roofing, insulation and debris will not be thrown into trucks or dumpsters but placed within chutes or other conveyance to ground. Tarpaulins will be used to protect the building elevations from dirt and dust contamination.


ROOF AREAS 3, 6, 7 & 12

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1.7 Drains will be plugged during tear-off operations and re-opened the same day. Drains will not be plugged over night. Any drains that are plugged or non- functioning will be brought to the attention of School District’s Representative. 1.8 Due to concurrent operations below roof areas, all precautions must be taken to insure a watertight condition. Contractor will provide emergency telephone number to the School District’s Representative. 2.0 VAPOR BARRIER / ROOF AREAS 3, 6 & 7: 2.1 The surface and flutes of the metal decking must be cleaned using compressed air,

vacuum equipment or hand/power brooms to remove dust, loose dirt or debris. 2.2 All blocking and cants will be installed at edges, curbs, pitch pockets and supports

as required by detail specifications. Project work will only be performed in areas to receive roofing system the same day.

2.3 Insulation to be used:

a. The metal deck will be covered with a ½” layer of Primed GAF Securock insulation.

2.4 Securement –Metal Decks: a. Metal Decks Roof Areas 6 & 7: Mechanically fasten all layers of insulation, to the metal deck, with OMG Stainless Steel #12 fasteners and 3 inch disc through the metal deck. Fasteners must penetrate the metal deck by at least 3/4 inch. b. Metal Deck Roof Area 3: Mechanically fasten all layers of insulation, to the metal deck, with Buildex Roofgrip #12 fasteners and 3 inch disc through the metal deck. Fasteners must penetrate the metal deck by at least 3/4 inch. c. FM I-90 approved fastening pattern for insulation: Field: - 1 fastener per every 2.0 square feet - 8 fasteners per 4' x 4' board - 16 fasteners per 4' x 8' board Perimeter - 1 fastener per 1.5 square feet - 21 fasteners per 4' x 8' board - Perimeters are 8 feet.


ROOF AREAS 3, 6, 7 & 12

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Corners - 1 fastener per 1.0 square feet - 21 fasteners per 4' x 8' board - Corners are 8 feet x 8 feet 2.5 Install no more insulation than can be covered with the vapor barrier the same day. 2.6 Insulation panels will have joints staggered. Gaps between panels of insulation will not exceed 1/8 inch at wood blocking and joints in the field of insulation will be tight. Panels with broken corners, damaged facers or wet panels of insulation will not be used. 2.7 Securock insulation will be either pre-primed or will be primed in the field with an approved quick drying asphalt primer. 2.8 Plastic shipping wrappings on new insulation will be removed at time of site

delivery and insulation will be covered with tarpaulins. 2.9 Due to thickness of insulation, insulation panels will need to be pressed in place and cut to contour of roof area. 2.10 **The floor of the Gymnasium (Roof Area 3) will be covered with clean tarps when the existing roof is torn off and the new insulation is mechanically fastened in place. Once the vapor barrier is installed, the tarps may be removed. The contractor will be responsible to remove all dirt and debris left by the removal of the floor protection. This cleanup will also include the cleaning of the floor by a wet or dry vacuum to minimize dust. Sweeping of the floor by broom or other device is not acceptable. The School Districts Project Manager will make final acceptance of the cleaning. 2.11 VAPOR BARRIER: a. The insulation will be swept of all dust, dirt and debris. b. Penetrations though the deck for vents, pipes, or joints in the deck construction will be sealed up to prevent any water, bitumen or other materials from penetrating into the building. Construction joints should be filled with closed cell joint backing and approved tape should be placed over the joint. The tape will extend a minimum of two inches on each side of the joint.


ROOF AREAS 3, 6, 7 & 12

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c. Beginning at the low point of the roof, fully torch weld one (1) ply of GAF Ruberoid SBS Heat Weld Granule, lapping sides a minimum of 3.0 inches and ends a minimum of 4.0 inches. d. Starting at the low point, torch one ply of the GAF Ruberoid SBS Heat Weld Granule membrane. Completely remove the roll wrapping tape before membrane installation. The first roll of the Torch Granulated membrane is unrolled completely and aligned. Remaining rolls shall be unrolled approximately halfway in order to properly align the 5 inch side laps and ensure the 6 inch end laps are maintained. e. Torch apply the rolled portion of the Ruberoid SBS Heat Weld Granule membrane by passing the flame of the torch evenly across the face of the roll. Heat the membrane with the torch until it develops a sheen or glossy appearance. Apply heat to the seam area of the previously installed sheet as well. The welding temperature is usually correct when a flow of bitumen approximately 1/2 inch wide is seen coming from the side lap (do not feather or trowel side laps). Roll up the unadhered half of the membrane sheet and repeat the above procedure to complete the installation of the roll. f. Each ply shall be pressed (broom or squeegee) into place to assure total adhesion and that the ply is free of air pockets, wrinkles, fishmouths, or open laps. g. The Vapor Barrier will extend up the perimeter walls to a point 6 inches above the deck. h. At the end of each day's work, install water cut-offs anywhere moisture could enter the assembly. Remove cut-off before resuming work. i. Before leaving the job site all laps will be probed with a cotter pin puller. Open laps, fishmouths or mole runs must be sealed every day. Re-heat sheet and press into position of cover opening with two plies of reinforcing fabric centered over the opening. Fabric will be comprised of a 6 inch and 12 inch layer set in and top dressed with asphalt mastic. j. When flashings are not immediately installed, strip edge of membrane with reinforcing fabric and vertical grade mastic to seal out moisture. k. Before torch application begins, all wood surfaces will be covered one (1) ply of the self-adhered base sheet.


ROOF AREAS 3, 6, 7 & 12

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3.0 PRIMING OF CONCRETE DECK / ROOF AREA 12: 3.1 The concrete deck will be swept of all dust, dirt and debris. Deteriorated concrete decking will be brought to the attention of the School District’s Representative. 3.2 Penetrations though the deck for vents, pipes, or joints in the deck construction will be sealed up to prevent any water, bitumen or other materials from penetrating into the building. Construction joints should be filled with closed cell joint backing and a dry felt should be placed over the joint. The dry felt will extend a minimum of two inches on each side of the joint and be sealed with asphalt mastic. Felt should be an approved asphalt coated base sheet. 3.3 After cleaning and repair of the openings in the deck surface, prime the surface with an approved asphalt quick drying primer at the rate of 3/4 to 1 1/4 gallon per 100 Square feet. Areas of high absorption resulting in an off white appearance will require re-priming. Allow primer to dry. 4.0 INSULATION: 4.1 The surface of the vapor barrier and metal decking must be cleaned using

compressed air, vacuum equipment or hand/power brooms to remove dust, loose dirt or debris.

4.2 All blocking and cants will be installed at edges, curbs, pitch pockets and supports

as required by detail specifications. Project work will only be performed in areas to receive roofing system the same day.

4.3 Insulation to be used:

a. Roof Areas 3, 6 & 7 – 3.5 inches of polyisocyanurate insulation adhered to the vapor barrier with Oly-Bond 500.

b. Roof Area 12 – 2.5 inches of polyisocyanurate insulation adhered to the

primed concrete deck with Oly-Bond 500. c. Crickets will be installed on Roof Areas 3 and 6. Crickets will be polyisocyanurate insulation with a slope of ¼ inch per foot. d. Over the polyisocyanurate insulation and crickets, all roof areas, install one layer of 1/4” Primed Securock insulation as manufactured by U.S Gypsum.


ROOF AREAS 3, 6, 7 & 12

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4.4 Securement – Insulation & Coverboard (Roof Areas 3, 6, 7 & 12): All layers of insulation will be installed in solid applications of Oly-Bond 500 Adhesive. Review the roofing insulation plan. Polyisocyanurate insulation boards cannot be larger than 4 feet x 4 feet. Multiple layers of boards should use the staggered joint method of application. Compatible insulation other than polyisocyanurate can be 4 feet x 8 feet maximum size. A. Product Installation: 1. Using PaceCart 2: a. Install Part 1 and Part 2 components following instruction on Bag- in-Box package. b. Open flow valves on the dispenser completely and turn machine on. This allows adhesive to be pumped at a 1:1 ratio through the disposable mix tip and onto the substrate in a semi-liquid state. c. Apply fluid mixture in ¾ to 1 inch wide wet beads spaced maximum of 12 inches on center that spreads in excess of 2 inches wide while rising ¾ to 1 inch. d. Lay insulation board into place and walk-in to assure complete adhesion. Curing typically occurs in 4 to 8 minutes depending on temperature and weather conditions. e. Check with roof system manufacturer for project specific spacing requirements. 2. Using SpotShot Applicator: a. Attach the disposable mix tip to the top of the SpotShot tube. Insert the tube into SpotShot dispensing tool and dispense onto the substrate. Apply fluid mixture in rows spaced maximum of 12 inches on center that spread to several inches wide while rising ¾ to 1 inch. b. Lay insulation board into place and walk-in to assure complete adhesion. Curing typically occurs in 4 to 8 minutes depending on temperature and weather conditions. c. Check with roof system manufacturer for project specific spacing requirements. B. Typical Application Rates: Application rates vary depending on surface roughness and absorption rate of the substrate. Typical coverage rates for OlyBond500 dispensed through the PaceCart 2 are 10-20 squares per 10 gallon Bag-in-Box sets. Typical coverage rates for OlyBond500 SpotShot dispensed through applicators is 4-6 squares per


ROOF AREAS 3, 6, 7 & 12

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case (4 sets of 1500 ml cartridges). All coverage rates are based on 12 inch on center maximum spacing. See chart below for typical application rates on specific substrates. Application Rates (Bag-in-Box Dispensed from PaceCart2)

Typical Coverage Squares/Gallon

Insulation to Concrete 1.7 to 2 Insulation to Insulation 1.7 to 2 Insulation to Smooth Bur 1.5 to 1.7 Insulation to Modified Bitumen 1.5 to 1.7 Insulation to Gypsum 1 to 1.2 Insulation to Lightweight Concrete* 1 to 1.7 Insulation to Wood 1.7 to 2 Insulation to Cementitious Wood Fiber 1 to 1.2 Insulation to Steel 1 to 1.2 * Coverage rate may vary substantially based on the absorption rate and/or the surface conditions of the LWC. C. Reaction Time: It is important to monitor the speed of the reaction in relation to the temperature (substrate and ambient) at time of application to ensure a complete reaction. Note the charts below for correct ‘Part 2’ component selection:

Typical Reaction Time Characteristics

A. 5 Gallon Bag-in-Box Packaging Temperature Part 2 Formula Tack Free Time

(minutes) Set Up Time (minutes)

40°F+ R 3-5 10-12 B. 1500 ml SpotShot Cartridges Temperature Part 2 Formula Tack Free Time

(minutes) Set Up Time (minutes)

0°F-40°F W 3-4 10-12 40°F+ R 3-5 10-12 Important: When applying OlyBond500, board stock must be placed into the adhesive shortly after it has reached its maximum rise while it is still wet and tacky and before it reaches its tack free state. 4.5 Install no more insulation than can be covered with new roofing membrane the same day.


ROOF AREAS 3, 6, 7 & 12

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4.6 Insulation panels will have joints staggered. Joints in top layer of insulation will be a minimum of 6 inches away from joints in bottom layer of insulation. Gaps between panels of insulation will not exceed 1/8 inch at wood blocking and joints in the field of insulation will be tight. Panels with broken corners, damaged facers or wet panels of insulation will not be used. 4.7 Compressive strength of isocyanurate insulation will be a minimum of 20 psi. 4.8 Securock insulation will be primed in the field with an approved quick drying asphalt primer. 4.9 Plastic shipping wrappings on new insulation will be removed at time of site

delivery and insulation will be covered with tarpaulins. 4.10 Isocyanurate insulation must meet Factory Mutual approval for a Class 1 roofing

construction per FMRC Standard 4450/4470, Federal Specifications HH-I-1972/GEN, BOCA section 2002.0, ICBO section 1713 and SBCCI section 717.

4.11 Due to thickness of insulation, insulation panels will need to be pressed in place and cut to contour of roof area. 5.0 ROOFING SYSTEM / ROOF AREAS 3, 6 & 7: 5.1 The surface of the insulation shall be clean and free of debris. 5.2 Apply one (1) layer of CI Base Sheet into the No-Smell Type IV Hot Asphalt by Continental Materials Inc., at approximately 26 lbs., per 100 square feet, over the newly installed insulation. 5.3 The properly heated Type IV asphalt (ASTM D-312) should be poured from a suitable container or applied with a mop just ahead of the membrane to form a pool of bitumen into which the membrane will be rolled. Asphalt must be mopped so as to extend beyond both edges of the sheet. The roll of membrane should push a puddle of asphalt ahead of it with no voids. Care should be taken not to induce stretch into the membrane. Care should also be taken not to trap air under the membrane. The amount of asphalt should be sufficient for excess asphalt to squeeze out along the edges of the membrane, approximately 30 pounds per 100 square feet. Repeat the procedure with the other half of the strip. 5.4 Extend all plies above the top edge of cant strips along the bases of parapets, gravel stops, walls, and projections. Air Seals at blocking will be required where positive air pressure exists. Seals will be formed with approved Sealant, Closed Cell joint backing or a combination of materials.


ROOF AREAS 3, 6, 7 & 12

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5.5 Felts will be broomed into place during hot application. Brooming will be done from the side and foot traffic will not be allowed over freshly applied plies. 5.6 Immediately following the application of the CI Base Sheet, install one ply of the following:

a. Roof Areas 3, 6 & 7 – StressPly Plus Mineral with Sunburst Minerals. Modified membrane will be installed into the Type IV Hot Asphalt at approximately 26 lbs., per 100 square feet. 5.7 Lap seams in the base ply should not coincide with the laps of the cap sheet. The courses should be staggered to ensure this. 5.8 Each ply shall be pressed (broom or squeegee) into place to assure total adhesion and that the ply is free of air pockets, wrinkles, fishmouths, or open laps. 5.9 The total membrane system must be completed at one time. Phase construction is not permitted unless otherwise directed by the Manufacturer. 5.10 At the end of each day's work, install water cut-offs anywhere moisture could enter the assembly. Remove cut-off before resuming work. 5.11 When flashings are not immediately installed, strip edge of membrane to seal out moisture. 5.12 At all intersections of the plane of the roof, walls, curbs or other raised edges, install cant or tapered edge strips. Extend roofing felts to the top of the cant but not more than two (2) inches above. At flat or raised edges, extend felts to the edge of the building, installing a felt envelope as required. 5.13 Surfacing:

a. Roof Areas 3, 6 & 7 - Areas of bleed-out or excess bitumen flow will be coated with additional Sunburst Minerals to present a neat clean appearance.

6.0 ROOF SYSTEM / ROOF AREA 12: 6.1 The insulation shall be clean and free of defects.


ROOF AREAS 3, 6, 7 & 12

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6.2 Beginning at the low point of the roof, fully torch weld one (1) ply of HPR Torch Base, lapping sides and ends a minimum of 4 inches. 6.3 Immediately following the application of the base ply, fully torch weld one (1) ply of StressPly IV Smooth surfaced cap sheet to the base ply, lapping sides and ends a minimum of 4 inches. 6.4 Lap seams in the base ply should not coincide with the laps of the cap sheet. The courses should be staggered to ensure this. 6.5 Each ply shall be pressed (broom or squeegee) into place to assure total adhesion and that the ply is free of air pockets, wrinkles, fishmouths, or open laps. 6.6 The total membrane system must be completed at one time. Phase construction is not permitted. 6.7 At the end of each day's work, install water cut-offs anywhere moisture could enter the assembly. Remove cut-off before resuming work. 6.8 When flashings are not immediately installed, strip edge of membrane to seal out moisture. 6.9 At all intersections of the plane of the roof, walls, curbs or other raised edges, install cant or tapered edge strips. Extend roofing felts to the top of the cant but not more than two (2) inches above. At flat or raised edges, extend felts to the edge of the building, installing a felt envelope as required. 6.10 SURFACING: When no further construction traffic is expected and the roof membrane is clean and dry, apply cold applied modified coal tar pitch poured at 5 gallons per 100 square feet and promptly cover with clean and washed smooth roof pea gravel at the rate of 450 pounds per 100 square feet. Gravel will be dry and applied immediately for proper embedment into flood coat. Gravel will be tan in color. 7.0 TEMPORARY FLASHING: 7.1 All cants and related components shall be in place.


ROOF AREAS 3, 6, 7 & 12

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7.2 One (1) Ply of approved waterproof felt will be: 7.2a install temporary flashing a minimum of 4 inches out beyond components and up a minimum of 4 inches beyond top edge of components and cants in approved asphalt at 30 pounds per 100 square feet per ply per mopping. or 7.2b install temporary flashing a minimum of 6 inches out beyond component and up a minimum of 4 inches beyond top edge of components and cants in asphalt mastic at 3/4 pounds per foot per ply. 7.3 No voids will be left in temporary flashing application. Applicator may use additional protection for inclement weather. All damage to temporary flashings will be corrected before roof membrane is installed. 8.0 ENVELOPE WATERSTOP: 8.1 All work related to the termination point of the insulation will be completed before insulation is placed. 8.2 An approved coated base sheet will be: 8.2a install waterstop a minimum of 6 inches under the face edge of insulation and wrapped up face and back a minimum of 6 inches from the face in approved asphalt at 30 pounds per 100 square feet, top dress waterstop with approved asphalt. or 8.2b install waterstop a minimum of 6 inches under face edge of insulation and wrapped up face and back a minimum of 6 inches from the face in asphalt mastic at 3/4 pound per feet, top dress waterstop with asphalt mastic. 8.3 No voids will be left in waterstop application. Applicator may use additional protection for inclement weather. All damage to waterstop will be corrected before roof membrane is installed.


ROOF AREAS 3, 6, 7 & 12

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WATERSTOP is formed when all plies of Roof Membrane are extended over the turned edge of the envelope. 9.0 WALL FLASHING-METAL COPING CAP, Drawing Letters A-A, B-B &

E-E Detail #D-WL-570, #D-WL-571 & #D-WL-572: 9.1 Existing flashing membrane, copper counterflashings and metal coping caps will

be removed from the masonry walls. A fiber cant will be installed at the base of the wall in approved adhesive.

9.2 Install one layer of Grade “A” wood blocking to the top of the concrete walls using proper fasteners to secure wood blocking into place. Fasteners will be predrilled and jackets may be required to provide adequate pull-out resistance. Fasteners will be installed in two rows, 18 inches on center, in a staggered pattern with two fasteners 2 inches in from the end of each board. 9.3 All plies of Roof Membrane will be installed and will extend 2 inches over top of fiber cant. 9.4 Over the top of the roofing felts, install one (1) ply of TriBase Ply Flashing Membrane, fully adhered with Flashing Cement or hot asphalt extending four (4) inches beyond the base of the cant and up the face of the wall across the top of the wood blocking. Flashing will be nailed off every 8" on center with approved fasteners 9.5 Over the base ply of Flashing Membrane, install a second ply of StressPly Plus mineral surface Flashing Membrane, fully adhered in the same manner as the first ply. It shall extend six (6) inches beyond the base of the cant an up the wall to the same height as the base ply of Flashing membrane. 9.6 Laps of flashings will be 4 inches. Flashings will required 3 coarse application and mesh and Silver Flash mastic. 9.7 Over the top of the wall, install a new 0.050 Aluminum Perma-Tite Gold Metal Coping System by Metal Era. Color will be selected by the School District. All corners, end caps, etc., will be fabricated by Imetco. No shop-fabricated metal will be allowed on the perimeter of the roofs. Outside and inside fascia dimensions are noted below.


ROOF AREAS 3, 6, 7 & 12

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Inside Fascia = 4.0” Outside Fascia = 7.5” Wall Widths Vary 9.8 Coping Installation Instructions: Step 1 – Corner support clips: a. Locate and fasten galvanized corner support clips to the wall. Step 2 – Miter splice plates & anchor clips: a. Position the splice plate in the center of the anchor clip. Install the splice plate and anchor clip assembly halfway into each end of the corner as shown. Step 3 – Miter: a. Place the corner assembly into position and secure at the exposed edge of the anchor clips as per manufacturers detail A. Step 4 – Endcap Anchor Clips: a. Locate and fasten galvanized anchor clips to wall with provided fasteners for substrate (see detail A). Step 5 – Endcap splice plates: a. Remove release paper from top of factory applied sealant strips. Place splice plate onto second anchor clip as shown. Step 6 – Endcap: a. Hook outside face of endcap over the anchor clips and rotate into place. Engage rear leg onto anchor clips by pressing downward until snap lock occurs. Step 7 – Anchor clips: a. Locate over membrane and fasten galvanized anchor clips to wall at 3’-0” (914 mm) center with provided fasteners as shown in detail A. Step 8 – Splice plates: a. Place splice plate onto anchor clips at splice joints, 12’-0” (3.65 m) O.C. Note: Remove release paper from sealant strips.


ROOF AREAS 3, 6, 7 & 12

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Step 9 – Coping: a. Hook outside face of coping over the anchor clips and rotate into place. Engage rear leg onto anchor clips by pressing downward until snap lock occurs. Step 10 – Completion: a. Continue installing coping with a 3/8” (10 mm) space at splice joints to allow for thermal expansion. Field cut where necessary using fine tooth hacksaw or snips. Note: Remove protective film immediately. 9.9 Installation Notes: a) Installing contractor shall check as-built conditions, including nailer attachment, and verify the manufacturer’s coping details for accuracy to fit the wall assembly prior to fabrication. b) Fasteners must be corrosion resistant and rated for a minimum 250# pullout force for the substrate that is being used. c) Remove protective film immediately. 9.10 Where coping caps end at the rising masonry walls on Roof Area 7, a new

face mounted counterflashing will be installed above the cap. The end of the coping cap will be turned up a minimum of 4.0 inches. A new 0.050 aluminum counterflashing will be installed over the concrete wall. Counterflashing will cover flange of coping cap. Color of counterflashing will match color of coping cap.

Face mounted counterflashing will be mechanically fastened to the wall will approved fasteners. Fasteners will have neoprene washers. 9.11 Top of counterflashing will have reglet joint sealed with 1/2 inch x 1/2 inch application of General Purpose Sealant tooled in place to form a watershed. Application of Sealant will occur after mechanical securement of counterflashing and wipe down of metal with approved cleaner. 9.12 Coping system must have a Factory Mutual 1-90 approved wind up-lift design. System shall also have a 170 mph lifetime wind performance warranty.


ROOF AREAS 3, 6, 7 & 12

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10.0 REGLET COUNTERFLASHING ON A MASONRY WALL / ROOF AREA 7,

Drawing Letter C1-C1, Detail #D-WL-545: 10.1 Abutment Wall flashing locations will require the removal of the existing flashing

material and metal counterflashing. Existing joint between the top of the brick wall and bottom of the concrete wall panels will be thoroughly cleaned of all caulking and dirt. A fiber cant will be installed at the base of the wall.

10.2 The wall/cant juncture will be examined for air passage. If airflow is present, joint

between cant and wall will be sealed with closed cell joint backing and approved general purpose sealant.

10.3 All plies of Roof Membrane will be installed and will extend 2 inches above the top of fiber cant. Membrane will be nailed off on 8 inch centers with spiral shanked cap nails with 3/4 inch round metal discs. 10.4 Over the top of the roofing felts, install one (1) base ply of Tribase flashing

membrane, fully adhered in vertical grade adhesive or hot asphalt, extending four (4) inches beyond the base of the cant strip and up the face of the wall to the top of the brick.

10.5 Over the base flashing ply, install one (1) ply of StressPly Plus Modified Mineral

Flashing Membrane, fully adhered in vertical grade adhesive or hot applied. It shall extend six (6) inches beyond the base of the cant and up the wall to the same height as the base ply.

10.6 Laps of flashings will be 4 inches. Flashings will required 3 coarse application and mesh and Silver Flash mastic. 10.7 A termination bar with caulking cup and slotted holes will be installed at the top edge of the two ply flashing system and fastened 6 inches on center with Rawl Mushroom Headed Fasteners. Termination bar will be wiped with approved cleaner and caulked with full beads of General Purpose Sealant. Sealant will be tooled into place to form a watershed. 10.8 Over the termination bar and into the existing joint between the top of the brick

wall and bottom of the concrete wall panel, install a new .050 aluminum counterflashing will cover the flashing system by at least 4.0 inches.


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10.9 The new counterflashing will be installed in the existing joint between the brick

wall and concrete wall panel. Counterflashing will be secured in place after installation of Metal Flashing with lead wedges every 2 foot and the joint will be filled with a backer rod and sealed with a full bead of Sika 15-LM tooled neatly in place to form a watershed.

10.10 New counterflashing will be fabricated from .050 aluminum and will cover the new membrane flashing by at least 4 inches. Counterflashing will be fabricated to permit a minimum of 1/2 inch joint insertion. 10.11 Counterflashing installation will provide a positive slope from parapet and laps will be 3 inches. 10.12 New counterflashing will have upper joint sealed with 1/2 inch x 1/2 inch application of Sika 15-LM Sealant tooled in place to form a watershed. Application of Sealant will occur after mechanical securement of counterflashing and wipe down of metal with approved cleaner. 11.0 METAL COPING OVER CONCRETE COPING STONE, Drawing Letter J-J, Detail #D-WL-573: 11.1 Existing membrane and copper counterflashings will be removed from under the

concrete coping stones. 11.2 Install one layer of Grade “A” wood blocking to the top of the concrete copings using proper fasteners to secure wood blocking into place. Fasteners will be predrilled and jackets may be required to provide adequate pull-out resistance. Fasteners will be installed in two rows, 18 inches on center, in a staggered pattern with two fasteners 2 inches in from the end of each board. 11.3 At the base of the wall, install a wood block that will have an outside face even with the inside face of the coping stone. Secure the block to the deck with two rows of approved fasteners spaced every 18 inches on center, staggered pattern. One fastener will be within two inches of the blocking ends. Blocking will be Grade “A” lumber a minimum of 2 inches thick. 11.4 Over the lower wood block and interior face of the concrete coping stone, install one layer of 5/8 inch CDX plywood. Plywood will be fastened to the upper and lower wood blocking with spiral shanked nails spaced every 8 inches on center. Nails must penetrate the blocking by at least 1 ½ inches.


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11.5 Plywood and upper layer of wood blocking will be covered with one layer of the self-adhered base sheet. Insulation will butt up tightly to the plywood. A fiber cant will be installed. 11.6 All plies of Roof Membrane will be installed and will extend 2 inches over top of fiber cant. 11.7 Over the top of the roofing felts, install one (1) base ply of Tribase flashing

membrane, fully adhered in vertical grade adhesive or hot asphalt, extending four (4) inches beyond the base of the cant strip and up the face of the wall to the top of the brick.



11.9 Laps of flashings will be 4 inches. Flashings will required 3 coarse application and mesh and Silver Flash mastic. 11.10 Over the top of the wall, install a new 0.050 Aluminum Perma-Tite Gold Metal Coping System by Metal Era. Color will be selected by the School District. All corners, end caps, etc., will be fabricated by Imetco. No shop-fabricated metal will be allowed on the perimeter of the roofs. Outside and inside fascia dimensions are noted below. Inside Fascia = 4.0” Outside Fascia = 8.5” Width of Existing Coping Stone = 17.5” 11.11 Coping Installation Instructions: Step 1 – Corner support clips: a. Locate and fasten galvanized corner support clips to the wall. Step 2 – Miter splice plates & anchor clips: a. Position the splice plate in the center of the anchor clip. Install the splice plate and anchor clip assembly halfway into each end of the corner as shown.


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Step 3 – Miter: a. Place the corner assembly into position and secure at the exposed edge of the anchor clips as per manufacturers detail A. Step 4 – Endcap Anchor Clips: a. Locate and fasten galvanized anchor clips to wall with provided fasteners for substrate (see detail A). Step 5 – Endcap splice plates: a. Remove release paper from top of factory applied sealant strips. Place splice plate onto second anchor clip as shown. Step 6 – Endcap: a. Hook outside face of endcap over the anchor clips and rotate into place. Engage rear leg onto anchor clips by pressing downward until snap lock occurs. Step 7 – Anchor clips: a. Locate over membrane and fasten galvanized anchor clips to wall at 3’-0” (914 mm) center with provided fasteners as shown in detail A. Step 8 – Splice plates: a. Place splice plate onto anchor clips at splice joints, 12’-0” (3.65 m) O.C. Note: Remove release paper from sealant strips. Step 9 – Coping: a. Hook outside face of coping over the anchor clips and rotate into place. Engage rear leg onto anchor clips by pressing downward until snap lock occurs. Step 10 – Completion: a. Continue installing coping with a 3/8” (10 mm) space at splice joints to allow for thermal expansion. Field cut where necessary using fine tooth hacksaw or snips. Note: Remove protective film immediately. 11.12 Installation Notes: a) Installing contractor shall check as-built conditions, including nailer attachment, and verify the manufacturer’s coping details for accuracy to fit the wall assembly prior to fabrication.


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b) Fasteners must be corrosion resistant and rated for a minimum 250# pullout force for the substrate that is being used. c) Remove protective film immediately. 11.13 Coping system must have a Factory Mutual 1-90 approved wind up-lift design. System shall also have a 170 mph lifetime wind performance warranty. 12.0 EXPANSION JOINT DETAIL / ROOF AREAS 4 & 7, Drawing Letter D-D, Detail #D-EX-640: 12.1 A new expansion joint will be installed at the intersection of Roof Areas 4 & 7. Existing joint, blocking and flashing will be removed. Existing roofing on the opposite side of the joint will be cut at the base of the existing blocking. 12.2 Vertical Grade “A” wood will provide a minimum 8" rise above the finished roof surfaces. At each location, a split treated 4 inch x 4 inch wood cant will be nailed in place. Make sure enough wood blocking is used to accommodate the height of the new isocyanurate insulation. 12.3 The roofing base plies shall be fully adhered in place and shall terminate not more than two inches above the wood cant. 12.4 On both sides of the joint, flashing shall be accomplished using one ply of TriBase flashing membrane and one ply of StressPly Plus mineral surfaced flashing membrane fully adhered in Flashing Bond mastic. The base ply membrane shall be installed from a point 2 inches from the base of the cant and extend to the top of the wood blocking. 12.5 The surface flashing sheet shall then be installed from a point 4 inches from the base of the cant and extend to the top of the wood blocking. 12.6 Lap seams in the lower flashing layer shall never coincide with the laps of the upper flashing layer. Both flashing membranes shall be adhered in place and mechanically attached to the top edge of the wood blocking. Cold applied flashings will required 3 coarse application and mesh and Silver Flash mastic. 12.7 Along top edge of the completed flashing membrane system, mechanically attach, eight (8) inches on center, both flashing plies with manufacturers approved fasteners.


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12.8 All flashing sheets shall be cut off the end of the roll and be applied vertically, always working to a selvage edge. 12.9 The void between sides of expansion joint curbs will be filled with compressible fibrous glass insulation. 12.10 A new .050 Aluminum Expansion Joint Cap, mill finish, will be installed on over the joint. Aluminum Cap will extend a minimum of 2 inches over Flashing. Cap sections will not exceed 10 feet splice plate will be a minimum of 6" wide at each joint. 12.11 Expansion joint cover will be attached to wood curb with approved fasteners spaced every 8.0" on center. Fasteners will have neoprene washers. 12.12 Expansion Joint Curbing will extend to perimeter of roof area. Metal Cap and End Termination will extend down over gravel stop or up and under counterflashing at abutment walls. 13.0 FLANGE AND TUFF-FLASH SYSTEM UNDER EXISTING CUT COUNTERFLASHING / ROOF AREA 12, Drawing Letter C-C, Detail #D-WL-540: 13.1 Abutment Wall Flashing locations will require the removal of the existing flashing material. Existing copper counterflashing will cut off 2 inches below the reglet. 13.2 Along the base of the wall, install Grade “A” 2” x 8” wood blocking to meet or slightly exceed the height of the new insulation. Blocking will be fastened to the concrete decking. Fasteners will be installed in two rows every 18 inches on center, staggered pattern. One (1) fastener will be located within 2 inches of the blocking ends. New insulation will butt up tightly to the wood blocking. 13.3 At the base of the wall, over the new wood blocking, install a 6” x 6” copper flange. Flange will be fabricated from 20 oz. copper and will be fastened to the wood blocking and wall with approved flat head fasteners spaced every 6 inches on center. 13.4 Behind the top of the flange, between the flange and wall, install a solid bead of Water Cut-Off Mastic. Flange will be mechanically fastened to wall though the mastic to keep it under constant compression. 13.5 Flange will then be primed with asphalt quick drying primer applied at the rate of 1 gallon per every 100 square feet. Allow primer to dry.


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13.6 Install the new modified roofing system across the base of flange to the vertical wall. 13.7 Over the smooth surfaced modified membrane, install the Tuff-Flash system that

will extend up the vertical surface 1 inch above the top of the copper flange and under the existing cut counterflashing and a minimum of 6 inches onto the horizontal surface.

13.8 Tuff-Flash Flashing Application: A. Climatic Conditions: 1. Keep temperature of Tuff-Flash between 65°-85°F (18°-29°C) 24 hours before use. 2. Do not store in direct sunlight or temperatures about 90°F (32°C). 3. Do not apply Tuff-Flash under 40°F (4°C) or over 100°F (37°C). B. Surface Preparation: 1. All surfaces to receive the Tuff-Flash system must be clean, dry and free of any dirt, dust, debris, rust and oils. 2. Any surfaces with oil or grease must be properly prepared with a suitable solvent based cleaner. 3. All metal surfaces must be abraded before application of the Tuff-Flash system to remove any existing rust or paint. 4. Mask off any areas not intended to receive the Tuff-Flash system with tape. 5. Wipe all metal surfaces with isopropyl alcohol to clean and prime the surface for the Tuff-Flash system. 6. Adhesion test may be required to determine system adhesion. C. For Liquid Flashing Detail(s): 1. Once the preparation for the Tuff-Flash system is complete, apply a base coat of Tuff-Flash at a rate of 2.0 gal./sq. (32 wet mils) onto the horizontal and vertical surface extending the base coat to the edges of the taped off area. 2. Embed the Grip Polyester® Firm into the Tuff-Flash base coat, making the scrim 2” smaller than the applied base coat on all edges.


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3. Apply a top coat Tuff-Flash at a rate of 5-6 gal./100 gal./sq. (48-64 wet mils) onto the horizontal and vertical surface extending the top coat to the edges of the taped off area. Note: Make sure that none of the Grip Polyester Firm is exposed to the elements and completely covered by the Tuff-Flash. 4. Tuff-Flash system will be coated with two coats of Pyramic at least 15-30 days after application of the Tuff-Flash. Note: Coating application time will be determined by the temperature. 13.9 Over the Tuff-Flash system install a new 16 oz. copper slip counterflashing into the existing receiver that will cover the flashing system by at least 3.0 inches. New counterflashing and will be mechanically fastened to the receiver every 12 inches on center with approved sheet metal screws. Fasteners will have Neoprene washers. Bottom edge of slip flashing will have a 45 degree kick. 13.10 Existing receiver will have wall joint sealed with 1/2 inch x 1/2 inch application of General Purpose Sealant tooled in place to form a watershed. Application of Sealant will occur after mechanical securement of counterflashing and wipe down of metal with approved cleaner. 14.0 THRESHOLD FLASHING / ROOF AREA 12, Detail #D-TH-350: 14.1 All existing flashing materials will be removed. Existing copper counterflashing will be cut off flush with the wall. Existing metal threshold will be removed. 14.2 The wall/cant juncture will be examined for air passage. If air flow is present, joint between cant and wall will be sealed with closed cell joint backing and reglet joint sealant. 14.3 Along the base of the wall, install Grade “A” 2” x 8” wood blocking to meet or slightly exceed the height of the new insulation. Blocking will be fastened to the concrete decking. Fasteners will be installed in two rows every 18 inches on center, staggered pattern. One (1) fastener will be located within 2 inches of the blocking ends. New insulation will butt up tightly to the wood blocking. 14.4 At the base of the wall, over the new wood blocking, install a 6” x 6” copper flange. Flange will be fabricated from 20 oz. copper and will be fastened to the wood blocking and wall with approved flat head fasteners spaced every 6 inches on center.


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14.5 Behind the top of the flange, between the flange and wall, install a solid bead of Water Cut-Off Mastic. Flange will be mechanically fastened to wall though the mastic to keep it under constant compression. 14.6 Flange will then be primed with asphalt quick drying primer applied at the rate of 1 gallon per every 100 square feet. Allow primer to dry. 14.7 Install the new modified roofing system across the base of flange to the vertical wall. 14.8 Over the smooth surfaced modified membrane, install the Tuff-Flash system that

will extend up the vertical surface 1 inch above the top of the copper flange to the threshold lip.

14.9 Horizontal portion of threshold will receive a heavy application of asphalt mastic. Fabricate and install a new 0.050 aluminum threshold, cut to fit existing conditions. Set threshold into asphalt mastic. Outside fascia of threshold will cover the Tuff Flash Flashing System by at least 4.0 inches. Edges of threshold metal will be caulked with Sikaflex 15 LM sealant. 14.10 Threshold metal will be covered with self-adhered non-skid strips. 15.0 TUFF-FLASH SYSTEM AND I-BEAM FLASHING / ROOF AREA 12

Detail #D-IB-650 15.1 Existing mastic and flashing materials will be removed from the metal column

posts. 15.2 All plies of Roof Membrane will be installed and will extend 2 inches above the

base of the cant that is part of the metal column post. 15.3 Over the top of the roofing felts, install one (1) ply of TriBase flashing membrane

fully adhered in an approved flashing grade Mastic or hot asphalt, extending 4 inches beyond the base of the built in cant up to the top of the cant.



15.5 Laps of flashings will be 4 inches. Flashings will required 3 coarse application and mesh and Silver Flash Mastic.


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15.6 The top edge of the flashing system will be secured to the metal column post with a metal termination bar. Termination bar will be secured every 6.0 inches on center with approved fasteners. A bead of Water Cut-Off Mastic will be installed between the upper edge of the flashing plies and metal column. Water Cut-Off Mastic will be kept under constant compression.

15.7 The Tuff Flash Flashing System will be installed from the base of the I beam web,

down over the I Beam flange and down the curb to completely cover the termination bar.

15.8 Tuff-Flash Flashing Application: A. Climatic Conditions: 1. Keep temperature of Tuff-Flash between 65°-85°F (18°-29°C) 24 hours before use. 2. Do not store in direct sunlight or temperatures about 90°F (32°C). 3. Do not apply Tuff-Flash under 40°F (4°C) or over 100°F (37°C). B. Surface Preparation: 1. All surfaces to receive the Tuff-Flash system must be clean, dry and free of any dirt, dust, debris, rust and oils. 2. Any surfaces with oil or grease must be properly prepared with a suitable solvent based cleaner. 3. All metal surfaces must be abraded before application of the Tuff-Flash system to remove any existing rust or paint. 4. Mask off any areas not intended to receive the Tuff-Flash system with tape. 5. Wipe all metal surfaces with isopropyl alcohol to clean and prime the surface for the Tuff-Flash system. 6. Adhesion test may be required to determine system adhesion. C. For Liquid Flashing Detail(s): 1. Once the preparation for the Tuff-Flash system is complete, apply a base coat of Tuff-Flash at a rate of 2.0 gal./sq. (32 wet mils) onto the horizontal and vertical surface extending the base coat to the edges of the taped off area.


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2. Embed the Grip Polyester® Firm into the Tuff-Flash base coat, making the scrim 2” smaller than the applied base coat on all edges. 3. Apply a top coat Tuff-Flash at a rate of 5-6 gal./100 gal./sq. (48-64 wet mils) onto the horizontal and vertical surface extending the top coat to the edges of the taped off area. Note: Make sure that none of the Grip Polyester Firm is exposed to the elements and completely covered by the Tuff-Flash. 4. Tuff-Flash system will be coated with two coats of Pyramic at least 15-30 days after application of the Tuff-Flash. Note: Coating application time will be determined by the temperature. 16.0 VENT CURB AND TUFF-FLASH SYSTEM / ROOF AREA 12,

Detail #D-VT-620: 16.1 There is one vent curb on roof area 12 that has been marked on the drawing

that will require a Tuff-Flash system installation. 16.2 This vent curb will require the removal of the existing flashing material up to the

horizontal surface. Existing modified membrane on the horizontal surface will remain in place. A fiber cant strip will be installed at the base of the vent curb in approved adhesive.

16.3 All plies of Roof Membrane will be installed and will extend 2 inches above the

cant. 16.4 Over the top of the roofing felts, install one (1) ply of TriBase flashing membrane

fully adhered in an approved flashing grade Mastic or hot asphalt, extending 4 inches beyond the base cant extending to the top of the curb.



16.6 Laps of flashings will be 4 inches. Flashings will required 3 coarse application and mesh and Silver Flash Mastic.


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16.7 The top edge of the flashing system will be secured to curb with a metal

termination bar. Termination bar will be secured every 6.0 inches on center with approved fasteners. A bead of Water Cut-Off Mastic will be installed between the upper edge of the flashing plies and metal column. Water Cut-Off Mastic will be kept under constant compression.

16.8 Over the edge of the vent curb install a new 0.050 aluminum counterflashing that

will cover the flashing system by at least 4.0 inches. Counterflashing will have a 3 inch horizontal flange and a 4.0 inch fascia. Counterflashing will be fastened to the curb every 4 inches on center will approved pan headed fasteners. Bottom edge of counterflashing will have a 45 degree kick.

16.9 Install the Tuff Flash Flashing System from the interior ventilator housing across

the horizontal surface to the edge of the counterflashing. 16.10 Tuff-Flash Flashing Application: A. Climatic Conditions: 1. Keep temperature of Tuff-Flash between 65°-85°F (18°-29°C) 24 hours before use. 2. Do not store in direct sunlight or temperatures about 90°F (32°C). 3. Do not apply Tuff-Flash under 40°F (4°C) or over 100°F (37°C). B. Surface Preparation: 1. All surfaces to receive the Tuff-Flash system must be clean, dry and free of any dirt, dust, debris, rust and oils. 2. Any surfaces with oil or grease must be properly prepared with a suitable solvent based cleaner. 3. All metal surfaces must be abraded before application of the Tuff-Flash system to remove any existing rust or paint. 4. Mask off any areas not intended to receive the Tuff-Flash system with tape. 5. Wipe all metal surfaces with isopropyl alcohol to clean and prime the surface for the Tuff-Flash system. 6. Adhesion test may be required to determine system adhesion.


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C. For Liquid Flashing Detail(s): 1. Once the preparation for the Tuff-Flash system is complete, apply a base coat of Tuff-Flash at a rate of 2.0 gal./sq. (32 wet mils) onto the horizontal and vertical surface extending the base coat to the edges of the taped off area. 2. Embed the Grip Polyester® Firm into the Tuff-Flash base coat, making the scrim 2” smaller than the applied base coat on all edges. 3. Apply a top coat Tuff-Flash at a rate of 5-6 gal./100 gal./sq. (48-64 wet mils) onto the horizontal and vertical surface extending the top coat to the edges of the taped off area. Note: Make sure that none of the Grip Polyester Firm is exposed to the elements and completely covered by the Tuff-Flash. 4. Tuff-Flash system will be coated with two coats of Pyramic at least 15-30 days after application of the Tuff-Flash. Note: Coating application time will be determined by the temperature. 17.0 METAL FLANGED UNITS, (Detail #D-MF-600): 17.1 New Grade “A” wood blocking will installed. Wood blocking will be fastened to the deck with two rows of approved fasteners spaced every 12 inches on center, staggered pattern. One fastener will be within one inch of the blocking end. New blocking will be installed so flange is even or slightly above finished roofing system. 17.2 All plies of Roof Membrane will extend over the wood blocking. Approved mastic will be applied to blocking under flange location at the rate of 1/2 pound per foot. Metal Curb will be set into place and secured with screws penetrating blocking at least 1 1/2 inches. 17.3 The horizontal flange of metal curb will be flashed using the base ply membrane and Stressply Plus flashing membrane. The base ply sheet shall be lapped a minimum of three (3) inches to itself and shall extend a minimum of three (3) inches onto the base roofing ply and up on the horizontal surface of the flange. 17.4 The Stressply Plus flashing sheet shall be lapped a minimum of three (3) inches onto itself and shall extend a minimum of four (4) inches onto the Stressply Plus surface ply and up on the horizontal surface of the flange. 17.5 Lap seams in the base layers shall never coincide with the laps of the Stressply Plus layer. The reinforcing sheet shall be adhered in place.


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17.6 The top edge of Flashing Membrane at vertical rise of curb will be sealed with a 1 inch x 1 inch bead of a Neoprene-Based Sealant tooled off to form a watershed. 18.0 METAL CURB FLASHING (Detail #D-MC-604): 18.1 Existing metal curbs will be examined for damage or deterioration. 18.2 Curbs will be raised in order to provide a minimum 8-inch flashing height. New Grade “A” wood blocking will be secured to deck with two rows of fasteners spaced every 18" on center, staggered pattern. Height of the wood blocking will meet or slightly exceed the height of the new insulation. Tapered edge strips or cants will be installed. 18.3 Contractor to include all electrical disconnect and reconnects in his/her pricing. 18.4 All plies of Roof Membrane will extend up 2 inches over the top of the cant. 18.5 Curbs will have covers removed. Flashing will be installed 1/2 inch below upper surface of metal curb and will extend a minimum 6 inches onto the horizontal membrane surface. Flashing will be installed in a solid application of approved mastic. 18.6 Over the top of the roofing felts install one (1) flashing ply of TriBase flashing membrane, fully adhered with Flashing Bond asphalt mastic extending two inches beyond the base of the cant strip and up the face of the curb to a point 1/2 inch from the top. 18.7 Over the base ply of TriBase Felt, install one (1) ply of Stressply Plus Mineral Surfaced Flashing Membrane, fully adhered in the same manner as the base plies. It shall extend four (4) inches beyond the base of the cant and up the blocking to the same location as the base ply. 18.8 Laps of flashings will be 4 inches. Flashings will required 3 coarse application and mesh and Silver Flash Mastic. Along the top edge of the completed flashing membrane system, mechanically attach, eight (8) inches on center, all flashing plies with manufacturers approved fasteners. 18.9 On all curbs install a 4 inch, 0.040 aluminum extender from under the frame over the new flashing. Fasten extender to curbing every 8” on center. On large units, a face mounted counterflashing will be installed under the unit. Counterflashing will be mechanically fastened in place every 8 inches on center. Fasteners will have neoprene washer and top edge of flashing will be caulked with General Purpose Sealant, tooled in place to present a neat, clean appearance.


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18.10 Asphalt tape will be applied between flashing and metal curb. A termination bar with slotted holes and caulking cup will be installed at top edge of flashing fastened 8 inches on center. 18.11 Termination bar and metal will be cleaned of all dirt and materials. Bar and metal curb at caulking location will be wiped clean with approved cleaner and primed. Bar will receive a bead of General Purpose Sealant tooled in place. 18.12 Re-fasten metal caps or equipment. 19.0 SKYLIGHTS / ROOF AREAS 3 & 12 (Detail #D-SK-605): 19.1 Existing skylights on Roof Areas 3 and 12, will be replaced. New skylights will be the WASCO Sentinel Model DDCFP with 9 inch aluminum curbs and will be installed over the existing skylight curbs. Existing skylight curb dimensions are:

a. Roof Area 3 = 61” x 72” b. Roof Area 12 = 52” x 52”

19.2 New Grade “A” wood blocking will be installed so the skylight flange is even with the surface of the new roof. Skylights will be level. Blocking will be secured to the deck with two rows of approved fasteners spaced every 18 inches on center, staggered pattern. One fastener will be within one inch of the blocking ends. 19.3 Plastic dome skylights shall be thermoformed impact glazing clear over thermoformed impact glazing opaque, skylights with insulated metal curbs. The skylights shall be factory assembled units, each consisting of a one piece resin plastic. The frame shall have integral condensate gutter and sufficient drainage slots to carry all moisture to the outside. The curb shall consist of a 9" high double skin of 1100-H14 aluminum insulated with 1.0" thick fiberglass insulation fully adhered to the metal curb. Curbs shall be supplied with removable 0.060" extruded aluminum cap flashing and snap in place corner covers. 19.4 During demolition, inside of building under the skylights, must be protected from falling debris. This may be accomplished by the use of polyethylene or clean tarps. Contractor will remove all debris and clean area at the end of each days work. 19.5 New skylights will be installed the same day the existing are removed. No openings will be allowed overnight.


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19.6 Skylight curb will be flashed per the following: a. New skylight curbs will be installed over existing openings. b. All plies of Roof Membrane will extend up 2 inches over the top of the cant. c. Over the top of the roofing felts install one (1) flashing ply of TriBase flashing membrane, fully adhered with Flashing Bond asphalt mastic extending two inches beyond the base of the cant strip and up the face of the curb to a point 1/2 up the 1” x 4” wood nailer. d. Over the base ply of TriBase Felt, install one (1) ply of Stressply Plus Mineral Surfaced Flashing Membrane, fully adhered in the same manner as the base plies. It shall extend four (4) inches beyond the base of the cant and up the blocking to the same location as the base ply. e. Laps of flashings will be 4 inches. Along the top edge of the completed flashing membrane system, mechanically attach, eight (8) inches on center, all flashing plies with manufacturers approved fasteners. f. Install skylight dome assembly with extruded aluminum cap flashing over the flashing membrane. 20.0 SUNLIT ROOF HATCHES / ROOF AREA 6: 20.1 Existing skylights on Roof Area 6 will be replaced with roof hatches. New roof hatches will be the Babcock-Davis Sunlit Series Model BRHLB S2LPCW with 9 inch aluminum curbs and will be installed over the existing curbs. Existing skylight curb dimensions are:

a. Roof Area 6 = 52” x 52” 20.2 New Grade “A” wood blocking will be installed so the roof hatch flange is even with the surface of the new roof. Roof hatches will be level. Blocking will be secured to the deck with two rows of approved fasteners spaced every 18 inches on center, staggered pattern. One fastener will be within one inch of the blocking ends. 20.3 Plastic dome roof hatches shall be thermoformed impact glazing clear over thermoformed impact glazing opaque, roof hatch with insulated metal curbs. The roof hatches shall be factory assembled units, each consisting of a one piece resin plastic. The frame shall have integral condensate gutter and


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sufficient drainage slots to carry all moisture to the outside. The curb shall consist of a 12" high double skin of 1100-H14 aluminum insulated with 1.0" thick fiberglass insulation fully adhered to the metal curb. Curbs shall be supplied with removable 0.060" extruded aluminum cap flashing and snap in place corner covers. 20.4 During demolition, inside of building under the skylights, care must be taken to protect the interior from falling debris. Because the skylights are over the pool and have lights hanging beneath them contractor must be extremely careful. Contractor will remove all debris and clean area at the end of each days work. 20.5 New roof hatches will be installed the same day the existing skylights are removed. No openings will be allowed overnight. 20.6 The roof hatch must meet the following specifications: a. Cover & Liner - 11 gauge aluminum cover with a 18 gauge aluminum liner. b. Curb - 14 gauge aluminum.

c. Hinge - Tamperproof hinge located on the outside of the hatch as part of a spring assembly to allow school personnel to change out light bulbs.

d. Latch - Zinc coated steel slam hatch with inside and outside lever handles. e. Spring - Greased compression springs enclosed in telescopic tubes, which counterbalance the door to require no more than 10 lbs. of opening force. f. Hardware - Zinc coated steel. g. Insulation - 1.0 inch thick rigid insulation in cover and 1 1/2 inches at curb perimeter. h. Mounting Flange - 3 1/2 inches. i. Finish - mill. 20.7 Roof Hatch curb will be flashed per the following: a. New roof hatch curbs will be installed over existing curbs. Fiber cants will be installed in approved adhesive. b. All plies of Roof Membrane will extend up 2 inches over the top of the cant.


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c. Over the top of the roofing felts install one (1) flashing ply of TriBase flashing membrane, fully adhered with Flashing Bond asphalt mastic extending two inches beyond the base of the cant strip and up the face of the curb to the bottom of the counterflashing. d. Over the base ply of TriBase Felt, install one (1) ply of Stressply Plus Mineral Surfaced Flashing Membrane, fully adhered in the same manner as the base plies. It shall extend four (4) inches beyond the base of the cant and up the blocking to the same location as the base ply. e. Laps of flashings will be 4 inches. Along the top edge of the completed flashing membrane system, mechanically attach, eight (8) inches on center, all flashing plies with manufacturers approved fasteners. f. Install roof hatch assembly with extruded aluminum cap flashing over the flashing membrane.

g. Because the roof hatch curbs will be installed around the existing skylight curbs a joint between the two curbs will be created. This joint will be filled with closed cell joint backing and a dry felt should be placed over the joint. The dry felt will extend a minimum of two inches on each side of the joint and be sealed with asphalt mastic. The felt should be an approved asphalt coated base sheet. An additional extruded aluminum cap will need to be installed over this joint to insure any condensation generated will not penetrate the roofing system.

21.0 CHEM-CURBS: (Detail #D-PP-701) 21.1 Chem-Curbs will be installed at the following locations: a. At the existing pitch pocket locations. b. At pipe supports. c. At conduits. 21.2 Location of Chem-Curb will be marked on the roof. The torch will be used to heat the surface of the granular surfaced membrane in order to push the minerals into the membrane.


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21.3 Remove all previous applied sealant, mastics and other contaminants from the penetrations. Do not prime penetrations with asphalt primer. Caulk around the base of each penetration with M-1 Structural Sealant. Apply an additional bead of M-1 to the penetration, even with the top profile of the ChemCurb. Tool the bead flat, extending the M-1 the M-1 1/2 inch below and 1/2 inch above the top profile of the Chem Curb. 21.4 Hold section of curb in hand flat side up and apply continuous bead of M-1 Structural Sealant adhesive near perimeter. Place beaded curb section on clean roof surface to form half circle around penetration(s) and press down firmly. 21.5 Hold second section of curb in hand flat side up and apply continuous bead of M-1 Structural Sealant adhesive near perimeter. Apply bead of adhesive to scarf joints. Place second section of curb on roof surface to form circle with first section. Press scarf joints together firmly and press both sections down. Note: To provide an adequate rubber seal, maintain a one inch distance between penetrations and inside edge of ChemCurb. 21.6 Apply a continuous bead of M-1 Structural Sealant adhesive around outside base of Chem-Curb. Tool all joints and seams to a smooth finish. 21.7 ChemCurb is now ready to be filled with ProPack Pourable Sealant. Mix parts A & B until solid black. See label for mixing instructions. 22.0 HEAT STACK / PIPE/ ROUND VENT FLASHING, (Detail #D-RV-760): 22.1 Existing heat stack, pipe and round vent flashings and metal collars will be removed. Grade “A” wood blocking will be installed. Additional wood blocking providing 1 inch of increased height will be secured. 22.2 Tapered edge strip will be used for transition to insulation surface. Tapered edge strip will be installed in continuous spreads of approved adhesive. All plies of Roof Membrane will extend over blocking. 22.3 Asphalt mastic will be trowel applied on wood blocking. Metal Curb flange will be set in place and secured to blocking with screws 8 inch on center. Horizontal flange of metal curb will be flashed with the base ply and surface ply flashing membranes set in asphalt mastic. Application rate will be 3/4 pound under and 3/4 pound over the base ply flashing per foot.


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22.4 Metal Hood will be installed. Metal Hood will provide a 1/2 inch flange collar for soldering or clamping and will extend at least 2 inches over vertical rise portion of curb. Metal Hood will be fabricated from 0.040 aluminum or heavier gauge steel. 22.5 Where clamping ring is used, asphalt tape will be used as gasket and a General Purpose Sealant will be applied in bead 1/2 inch x 1/2 inch at joint between clamping ring and stack. 23.0 SOIL STACK DETAIL, (Detail #D-SS-780): 23.1 Plumbing pipes will be flashed with 4 pound lead flashings. Horizontal flanges will extend a minimum of 4 inches onto the horizontal roof mat. 23.2 The roofing ply sheets will extend to intersection of roof and soil stack. 23.3 Lead horizontal flanges will be primed and placed in a solid bed of asphalt mastic. 23.4 Lead will be crimped into pipe at least 2 inches and for pipes 2 inches or less in diameter, lead top caps will be required. 23.5 Lead flanges will be covered with the flashing base, which shall extend past edges of lead flange a minimum of two (2) inches. 23.6 The base flashing ply and the lead flange will then be covered with the surface flashing ply. The surface ply will be cut to fit tightly around base of lead flange. The surface flashing will extend past edges of the lead flange by 4 inches. 23.7 The edge of the roofing membrane at the vertical rise of the lead will be sealed with a 1 inch x 1 inch bead of a Neoprene-Based Sealant tooled off to form a watershed. 24.0 DRAINS, (Detail #D-DR-800): 24.1 Existing drains will be replaced. New drains will be Smith Model 1310. Sizes of new drains will match existing. Drains will have deck clamps and threaded receivers. No hub connections are also accepted. Bowls will be insulated with 1.0” fiberglass or approved foam insulation.


ROOF AREAS 3, 6, 7 & 12

35

24.2 During replacement and installation of new drains, inside of building under the drain area, must be protected from falling debris. This may be accomplished by the use of polyethylene or clean tarps. Contractor will remove all debris and clean area at the end of each days work. Scheduling and placement of interior protection must be closely coordinated and approved by the School District Project Manager. 24.4 Drains will have a minimum 8 foot by 8 foot sump where flat stock insulation is used. Drains will not hold water at the collar. 24.5 All plies of the Roof Membrane will extend into the drain. Drains will be plugged to prevent clogging from gravel, dirt or debris. PLUGS WILL BE REMOVED EACH DAY TO INSURE PROPER DRAINAGE. 24.6 Four (4) pound lead a minimum of 30 inches X 30 inches will be installed in drains. Lead will be placed in trowel application of asphalt mastic. Lead will formed into drain bowl. Lead will be secured under clamping collar and edge of lead will be flashed with 12 inch mesh membrane based and top dressed in Asphalt Mastic. Application rate of mastic will be 1 pound under and 1 pound over mesh per foot. 24.7 New metal domes will be installed on drains to prevent debris from plugging pipes each day drains are treated. 24.8 Drain sumping and installation of roof membrane and lead must be performed as an integral part of roofing process. Secondary applications of drain details must be approved by Project Coordinator. 24.9 Installation of new drains and piping must be performed by a licensed Plumbing or Mechanical Contractor. 24.10 A pre-construction and post construction drain inspection will be made by the Contractor and the School District Representative. Any drains clogged before works begins will be opened by the School District. The Contractor will be responsible to open any clogged drains found during work or at the completion of the project. 25.0 WOOD SLEEPERS, (Detail #D-WS-850): 25.1 New wood sleepers will be installed at existing locations.


ROOF AREAS 3, 6, 7 & 12

36

25.2 Where weight of object exceeds 12 pounds per square foot: a. Treated wood of equal thickness to insulation will be placed into position. Wood will be 2 inches wider than base of object being supported. b. Insulation will be installed up against wood sleeper. c. Roof membrane will extend over sleeper location. 25.3 Walkpads 6 inches wider and longer than wood sleeper will then be placed on the roof. 25.4 Treated wood supports for particular situation would then be placed on the walkpads. Supports will be a minimum of 4 inches wide and will match the height of the existing sleepers. 26.0 WALKPADS, (Detail #D-WP-860): 26.1 Walkpads will be placed at the following locations: a. Top and bottom of each fixed ladder. b. Outside thresholds. c. Under the wood sleepers. d. Around all Chiller unit. The area is to be dry and swept clean of dirt and debris. Dyna Tred Plus Walkpads can be installed in spot applications of approved Plastic Cement. 26.2 Prior to application, the material should be cut in maximum four foot lengths and allowed to relax until flat. A straight edge or chalk line should be used to ensure straight, square cuts. Never cut material directly on the roof surface. 26.3 Walkpad should be positioned so as to leave a minimum two inch gap between panels, allowing for proper drainage. 26.4 Walkpad is adhered to the Surface roofing membrane using the approved Plastic Cement. Cement is applied to the back of the Walkpad in spots of approximately five (5) inches square in the pattern shown in the detail drawing. 26.5 Use a notched trowel to keep the cement 3/8" thick. "Walk in" each panel to ensure complete contact with the membrane surface.


ROOF AREAS 3, 6, 7 & 12

37

27.0 NEW FIXED LADDERS: (Details #D-RL-900) a. New roof ladders will be installed at the following locations: 1. Between Roof Area 6 and Roof Area 7 (5’-8” high) 2. Between Roof Area 4 and Roof Area 2 (11’-3” high) Existing ladders will be removed from the masonry walls. Holes in walls will be filled with backer rod and urethane caulking tooled neatly into position. Color of caulking will match color of masonry.

b. Ladders will be manufactured from aluminum and have a mill finish.

c. Ladder will be manufactured by Precision Ladders or Bustin Industrial Products or approved equal.

d. Brackets will be anchored to existing walls with approved anchor bolts.

Bearing plates will be required behind the existing walls. Plates will be a minimum of 4 inches by 4 inches.

e. Where bearing plates cannot be used, brackets will be anchored to masonry walls with approved anchor bolts. Into the predrilled anchor bolt holes inject AC100 Plus Epoxy Adhesive by Powers Fasteners. A. MATERIALS - Injection Adhesive: Type recommended by manufacturer for application and use, rated for loadings and anchored items required. Acceptable Product: AC100 PLUS; two component, all weather, high performance, zero VOC, epoxy acrylate, complying with descriptive requirements of ASTM C 881, Type IV, Grade 3, Classes A, B, and C, except for gel time; mixed and dispensed through motionless, static mixing nozzle and dispensing tool; shelf life of 18 months, minimum B. EXECUTION: 1. EXAMINATION: a. Do not begin installation until substrates have been properly prepared. b. If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.


ROOF AREAS 3, 6, 7 & 12

38

2. PREPARATION: a. Clean surfaces thoroughly prior to installation. b. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions. 3. INSTALLATION: a. Install in accordance with manufacturer's instructions and recommendations and as required by applicable code. b. Apply anchor items neatly, with anchor mounted plumb and level unless otherwise indicated. 28.0 MASONRY / CAULKING AND WATERPROOFING: 28.1 Caulking: Masonry to Metal and Masonry to Masonry surfaces: A. Location of Work: 1. The vertical joints in the wall on the east side of Roof Area 7 will be recaulked. B. CAULKING - SIKA LM - 15. Sealant for Masonry to Metal and Masonry to Masonry surfaces: 1. Material will meet or exceed the enclosed performance specifications. Pre-approved sealant is Sikaflex - 15 LM. a. Sealant to be a low modulus, high performance, 1- component, polyurethane based, non-sag elastomeric sealant. b. Color of caulking will be selected by the School District Administrator. C. Surface Preparation: 1. Clean all surfaces, remove existing caulking. 2. All joints must be sound clean, dry, frost-free and free of oil and grease.


ROOF AREAS 3, 6, 7 & 12

39

3. Curing compound residues and any other foreign matters must be thoroughly removed. 4. Install backer material or joint filler, setting blocks, spacer shims and tapes as needed. Apply sealant in a continuous operation, using positive pressure adequate to properly fill and seal the joint. 5. At the existing expansion and control joints; the joint will be thoroughly cleaned. Pack the joint to within one-half (1/2) inch of the surface with closed cell joint backing being inserted under 30% compression. a. Tape both sides of joint. b. Prime, allow to dry. c. Caulk joints with Approved Sealant, color to match surrounding brick. Tool neatly into position. d. Remove tape. D. Priming: 1. Priming is not necessary. E. Application: 1. Recommended application temperatures at between 40 degrees F to 100 degrees F. 2. For cold weather applications, pre-conditioning units to approximately 70 degrees F is recommended. 3. Only apply sealant to clean, sound, dry and frost-free substrates. 4. Sealant should be applied into joints when joint slot is mid-point of its designated expansion and contraction. 5. Place nozzle of gun into bottom of the joint filing entire joint. Keep nozzle in the sealant, and continue on with a steady flow of sealant preceding the nozzle to avoid air entrapment. 6. Avoid overlapping of sealant to eliminate entrapment of air.


ROOF AREAS 3, 6, 7 & 12

40

7. Tooling should be completed in one continuous stroke immediately after sealant application and before a skin forms. Tool or strike the sealant with light pressure to spread the material against the backer material and the joint surfaces. A tool with a concave profile is recommended to keep the sealant within the joint. Do not use liquid tooling aids such as water, soap or solvents. 8. Joint dimension should allow for 1/4 inch minimum and 1/2 inch maximum thickness for sealant. 9. Proper design is 2:1 width to depth ratio. F. Masking: 1. Areas adjacent to joints should be masked to ensure neat sealant lines and to avoid contact with polished granites, metal or glass. Do not allow masking tape to touch clean surfaces on which the sealant is to adhere. Masking should be removed immediately after tooling. G. Cleaning: 1. Immediately remove all excess sealant and smears adjacent to the joint with Xylol or Toluol as work progresses. 2. Cured material can only be removed mechanically. 28.2 Waterproofing of Concrete Wall Panels: The existing concrete wall panels will be sealed with ThoroLastic: I. MATERIALS: Water-based, 100 percent acrylic, elastomeric, waterproofing coating consisting of water, acrylic emulsion, fillers, and other proprietary ingredients. Thorolastic Smooth: Density: 11.2 pounds per gallon (1.34 kg/L) to 12.2 pounds per gallon (1.46 kg/L) per ASTM D1475. Solids Content, per ASTM D5201: By Weight: 64.2 percent. By Volume: 50 percent.


ROOF AREAS 3, 6, 7 & 12

41

Viscosity: 127 KU to 135 KU per ASTM D562. VOC Content: 0.32 pounds per gallon (38 g/L) to 0.42 pounds per gallon (50 g/L) per ASTM D3960. II. COLORS: 48 standard colors through Elements color program as selected by the School District. III. TEXTURES: Smooth. IV. MIXING: Mechanically mix sealer with slow-speed drill and mixing paddle to ensure color uniformity and to minimize air entrapment. In multi-pail applications, mix contents of each new pail into partially used pail to ensure color consistency and smooth transitions from pail to pail. V. EXECUTION: a. SURFACE PREPARATION: Protect adjacent Work areas and finish surfaces from damage during coating system application. Ensure that substrate is sound, clean, dry, and free of dust, dirt, oils, grease, laitance, efflorescence, mildew, fungus, biological residues, chemical contaminants, and other contaminants that could prevent proper adhesion. Clean surface by using high-pressure waterblasting with or without abrasives added to water stream, to achieve surface with texture similar to100 grit sandpaper. Some stains and surface contaminants may require chemical removal. When chemical cleaners are used, neutralize compounds and fully rinse surface with clean water. Allow surface to dry before proceeding. Ensure area being repaired is structurally sound and fully cured. Remove blisters and loose or delaminated areas.


ROOF AREAS 3, 6, 7 & 12

42

Sand or grind edges of previous coating to ensure adhesion and smooth transition to new material. Sand edges to featheredge. Wash down prepared surfaces and allow to completely dry. Concrete Surfaces: (Walls): In addition to laitance and contaminants, remove form-release agents or previously applied sealers. Remove form tie wires and repair holes, small voids, and spalls using appropriate repair product approved by coating manufacturer. Abrasive-blast slick, dense concrete surfaces or use primer approved by coating manufacturer. Test surface for proper adhesion as specified in Part 1. b. DETAIL PREPARATION: Apply joint sealant where appropriate on support columns and other details. Inspect expansion joints. Ensure there is no deteriorated sealant, adhesion loss, or non-elastomeric caulking in joints. Replace defective sealant with sealant approved by coating manufacturer. Apply and tool liberal amount of patching compound or form cant bead of sealant approved by coating manufacturer wherever there is change in direction, where 2 walls abut, and at column and wall intersections. If movement is anticipated where dissimilar substrates join (for example, stucco and concrete or brick and CMU), properly clean joint and seal with sealant approved by coating manufacturer. Inspect through-wall penetrations, including electrical, lighting, signage, plumbing, HVAC, and fire-sprinkler piping, for watertight seal. Repair with sealant approved by coating manufacturer. Inspect flashings, including cap flashing and roof flashing for watertight seal. Repair with sealant approved by coating manufacturer. Recaulking of existing windows is essential in waterproofing and renovation of existing structures. Inspect perimeter joints and mullions and recaulk with sealant approved by coating manufacturer. Apply coat of brush-grade patching compound to stucco and masonry window sills (primed, if required). Create smooth surface that drains away from window.


ROOF AREAS 3, 6, 7 & 12

43

Cracks smaller than hairline can be bridged with knife-grade or brush-grade patching compounds. Chip or grind out nonmoving cracks larger than hairline. Remove dust and pack with knife-grade patching compound. Bridge crack with brush-grade patching compound. Brush narrow band directly into crack using brush, sponge, or other means to match substrate texture and reduce telegraphing of patches through finish coat. On textured substrates, use texturized patching compound to minimize telegraphing. Rout out dynamic or moving cracks to minimum of 1/4 inch by 1/4 inch (6 mm by 6 mm), then fill with sealant approved by coating manufacturer. Once sealant is tooled and cured, proceed with crack repair as described previously. Repair cracks and treat back side of parapets in same manner as exterior walls, terminating at roof counter flashings. If top of parapet wall is exposed masonry, apply coat of patching compound to create smooth, well-draining surface. Recaulking of reglet may be required. c. PRIMING: Use primer only to stabilize existing substrates or coatings that are chalking or friable (powdery) after power washing. Ensure that primer for proper adhesion of coating material can bind existing surfaces or paint. Adhesion testing is specified in Part 1. Apply primers or block fillers acceptable to coating material manufacturer. Ensure CMU and other porous surfaces are clean, dry, and free of contaminants. Fill CMU faces with block filler and back roll to eliminate pinholes. Apply by working material into pores, crevices, and voids. Allow block filler to dry before proceeding, typically 24 to 48 hours. Coverage rate depends on porosity and texture of CMU surface. Apply to dry, cured CMU and mortar only. Apply coating after primer and block filler have sufficiently dried. Special substrates, such as insulated wall systems, may require different primer system. Contact coating manufacturer for specific recommendation. d. APPLICATION: General: For uniformity of color and texture, use consistent application techniques throughout Project.


ROOF AREAS 3, 6, 7 & 12

44

Apply coating material in 2 coats to achieve total dry film thickness (DFT) of 16 to 20 mils (406 to 508 microns). More than 1 coat may be required when color difference between existing surface and new coating is significant. Maintain proper wet-film thickness (WFT) during application to ensure performance characteristics desired. Work to natural break in surfaces before stopping Work. Work from wet edge with 50 percent overlap. Use sufficient material to provide color uniformity, but avoid buildups and runs. Apply coating in manner to obtain pinhole-free, consistent film build on treated surfaces. 1. Brush Application: Application by brush is recommended only for small inaccessible areas such as touch-ups. Use nylon brush only. 2. Roller Application: Use a 3/4 inch to 1-1/4 inch (19 mm to 32 mm) nap roller cover (lamb’s wool is preferred). Completely saturate roller and keep it loaded with coating to build required mils. Never dry roll. Roll coating in consistent fanlike pattern to achieve uniform mil thickness. Cross roll to achieve uniform thickness and maintain wet edge. Backroll material in 1 direction as stroke variations may result in uneven color and texture. 3. Spray Application: NO SPRAY APPLICATIONS WILL BE PERMITTED. VI. CURING: Drying time to touch is 6 hours at 70 degrees F (21 degrees C) and 50 percent relative humidity if applied at 18 to 20 mils WFT (457 to 508 microns). Recoat in minimum of 12 to 24 hours.


ROOF AREAS 3, 6, 7 & 12

45

VII. CLEANING: Clean tools and equipment with soapy water. Clean up and properly dispose of debris remaining on Project site related to application. Remove temporary coverings and protection from adjacent Work areas. 29.0 INSTALLATION OF SELF-ADHERING MEMBRANE AT ALL LOCATIONS TO RECEIVE WOOD / ROOF AREA 12 & AND VAPOR BARRIER LOCATIONS (PERIMETER & PROJECTION FLASHINGS): 29.1 For protection of wood that is not completely covered by the base sheet install one layer of Self-Adhering FR Base Sheet to all wood surfaces. Base Sheet will extend from a point three inches on the roof, up the wall and/or across the wood blocking to terminate at the top of any vertical blocking and below the bottom edge of any horizontal blocking. 29.2 Starting at a point three inches on the roofing system, unroll the self-adhering base sheet into the desired position. Fold the membrane length wise back onto itself, remove the split back release film from the exposed side and gradually push the membrane into place. Apply even pressure along the entire length of the membrane from the center to outer edges to avoid air pockets or wrinkles. Repeat for the other side. Firmly apply pressure with a suitable weighted roller to ensure 100% adhesion. 29.3 Position the next sheet overlapping the previous sheet by 4 inches. Firmly apply pressure with a suitable weighted roller to ensure 100% adhesion. Extend the plies down past the outer edge of the horizontal blocking and up and over the top of the vertical blocking. 30.0 MISCELLANEOUS: 30.1 Pipe & Flashing / Roof Area 12: a. Existing drain pipe from the chiller to the stack location will be re-aligned. b. Horizontal run of piping will be raised to provide a longer distance between the 90 degree elbow and stack. Existing pipe hangers will be reused.


ROOF AREAS 3, 6, 7 & 12

46

c. End of pipe will be extended into the existing stack. d. Pipe and stack will be flashed with the Cape and Collar detail as found within Section 22.0 of this specification. 31.0 CLEAN-UP: 31.1 Grounds around Building and rooftops will be cleaned of all paper and debris. Cleaning must meet the satisfaction of the School District’s Project Manager. 31.2 Dumpster will be covered at the end of each days work. Area around dumpster will be cleaned on a daily basis. 31.3 The finished roof system will be clean and free of any and all marks or spills. All piles of gravel will be leveled. The School District’s Project Manager must approve the final appearance of the roofing project before the project is deemed complete.

PROFESSIONAL ROOF SERVICES, INC.

THRESHOLD FLASHING!ROOF AREA 12!

!DETAIL #D-TH-350

WOOD BLOCKING

SLIP COUNTERFLASHING

ADHESIVE

ISOCYANURATE INSULATION & 1/4" SECUROCK INSULATION

TUFF FLASH FLASHING SYSTEM

METAL DOOR JAMB

CAULK

STRUCTURAL DECK

MASONRY WALL!

VAPOR BARRIER

ROOF SYSTEM

CENTENNIAL SCHOOL DISTRICT!KLINGER MIDDLE SCHOOL!1415 2ND STREET PIKE!

SOUTHAMPTON, PA

0.050 ALUMINUM THRESHOLD CAP, MILL FINISH


FLANGE & TUFF FLASH SYSTEM!UNDER EXISTING COUNTERFLASHING!

DRAWING LETTER C-C!ROOF AREA 12!

DETAIL #D-WL-540


MASONRY WALL


ROOF SYSTEMPRIMED COPPER FLANGE FASTENED TO WALL AND DECK EVERY 6" O.C.

ROOF SYSTEM

BEAD OF WATER CUT-OFF MASTIC BETWEEN FLANGE AND WALL

MASONRY WALL

FLOOD & GRAVEL

2.5" POLYISOCYANURATE INSULATION

EXISTING CONCRETE DECK

1/4" SECUROCK

CUT COPPER COUNTERFLASHING

CUT COUNTERFLASHING

STRUCTURAL CONCRETE DECKCOPPER FLANGE

2.5" ISOCYANURATE & 1/4" SECUROCK

WOOD BLOCKING

WOOD BLOCKING

16 OZ. COPPER SLIP COUNTERFLASHING

SLIP COUNTERFLASHING


SOUTHAMPTON, PA


BRICK/CONCRETE WALL FLASHING!REGLET COUNTERFLASHING!

DRAWING LETTER C1-C1!DETAIL #D-WL-545

2 PLY FLASHING SYSTEM

CONCRETE WALL



ROOFING SYSTEM

TERMINATION BAR FASTENED 8 INCHES ON CENTER

APPROVED SEALANT

CONCRETE WALL PANEL

ROOFING SYSTEM


1/2" SECURSHIELD

INSTALL 0.050 ALUMINUM REGLET COUNTERFLASHING INTO JOINT BETWEEN BRICK WALL AND CONCRETE WALL PANEL

SEALANT

LIGHTWEIGHT CONCRETE

1/2" SECUROCK

VAPOR BARRIER

VAPOR BARRIER


SOUTHAMPTON, PA

1/4" SECURSHIELD

1/4" SECUROCK

INSTALL 0.050 ALUMINUM REGLET COUNTERFLASHING INTO JOINT BETWEEN BRICK WALL AND CONCRETE WALL PANEL


METAL COPING CAP!DRAWING LETTER A-A, B-B!

& E-E!DETAIL #D-WL-570

NEW 0.050 ALUMINUM ANCHOR-TITE COPING CAP BY METAL-ERA WITH AN 0.050 ALUMINUM EXTENDER WITH A 3.0 INCH REVEAL.

ONE (1) PLY OF STRESSPLY PLUS MINERAL WITH SUNBURST MINERALS

FIBER CANT

2 PLY FLASHINGPRIME WALL

METAL DECK 3.5" POLYISOCYANURATE INSULATION ADHERED TO VAPOR BARRIER

WOOD BLOCKING

ONE PLY CI BASE SHEET

1/2" PRIMED SECUROCK MECHANICALLY FASTENED TO DECK

GAF RUBEROID SBS HEAT WELD GRANULE

1/4" SECUROCK PRIMED

CUT OFF EXISTING COUNTERFLASHING


SOUTHAMPTON, PA


METAL COPING DETAIL!OVER PARAPET WALL!

DRAWING LETTERS A-A, B-B & E-E!DETAIL #D-WL-571

3/8" SPACE PROVIDED FOR WALL VARIATIONS

7/8"

8" WIDE CONCEALED SPLICE PLATE AT EACH JOINT

COPING COVER 12'-0" LENGTHS

12" WIDE, 16 GA. GALVANIZED ANCHOR CLIPS 3'-0" O.C.

#10 X 1 1/2" STAINLESS STEEL FASTENERS PROVIDES

*Note: Coping cap to be 0.050 aluminum, PERMA-TITE GOLD by Metal Era Roof Edge Systems. Color selected by the School District.

1 LAYER OF GRADE "A" WOOD BLOCKING

7 1/2"

4.0"

Wall Widths Vary!See Drawing


1 3/8"

1/4" X 1 1/4" TAPCON FASTENERS PROVIDED (WOOD OR MASONRY SCREW)


SOUTHAMPTON, PA

METAL COPING UNDER!FACE MOUNTED COUNTERFLASHING!

AT RISING CONCRETE WALL!DETAIL #D-WL-572

NEW FACE MOUNTED COUNTERFLASHING

0.050 COPING CAP UNDER COUNTERFLASHING

EXTERIOR CONCRETE WALL

INSULATION

BLOCKING

CONCRETE WALL

PRIME WALL

FIBER CANT

MODIFIED ROOFINGSYSTEM

2 PLY FLASHING



SOUTHAMPTON, PA


METAL COPING OVER!CONCRETE COPING STONE!

DRAWING LETTERS J-J!DETAIL #D-WL-573

ROOFING SYSTEM

WOOD BLOCKING

0.050 ALUMINUM PERMA-TITE GOLD COPING BY METAL ERA

METAL DECK

2-PLY FLASHING SYSTEM

EXISTING COPING STONE

CANT

VERTICAL WOOD BLOCKING

CUT OFF EXISTING COUNTERFLASHING 3.5" OF

ISOCYANURATE & 1/4" SECUROCK INSULATION

0.050 ALUMINUM EXTENDER WITH 3.0" REVEAL

1/2" SECUROCK INSULATION


SOUTHAMPTON, PA

VAPOR BARRIER


METAL FLANGE!!

DETAIL #D-MF-600

WOOD BLOCK

1/4" PRIMED SECUROCK INSULATION

ASPHALT MASTIC

FLANGE

FLANGE MOUNTED PROJECTIONFLASHING MEMBRANEAPPROVED

CAULKING

MODIFIED MEMBRANE

FLAT STOCK ISOCYANURATE INSULATION

1 PLY CI BASE SHEET


SOUTHAMPTON, PA


METAL CURB FLASHING!!

DETAIL #D-MC-604

APPROVEDADHESIVE

MEMBRANE 2 INCHESABOVE CANT

FLASHING WILL BE SECURED TO METAL CURBING AND WILL EXTEND 6 INCHES ONTO HORIZONTAL ROOF MAT SURFACE. METAL CURBING WILL PROVIDE 8 INCH RISE FROM HORIZONTAL ROOF MAT SURFACE.

CANT

*THIS DETAIL TO BE USED ON ALL ROOF AREAS UNLESS OTHERWISE SPECIFIED BY MANUFACTURER.

0.040 ALUMINUM EXTENDER

METAL CURBING

ROOFING SYSTEM

2 PLY FLASHING

VENT, UNIT OR HATCH

MECHANICALLY FASTENED ANCHOR BAR WITH MESH & MASTIC


PRIMED SECUROCKWOOD BLOCK


SOUTHAMPTON, PA


SKYLIGHT DETAIL!ROOF AREAS 3 & 12 !DETAIL #D-SK-605

FLASHING & CANT STRIP

CAP FLASHING 0.62"EXTR. ALUM

FLASHING CAP RECEPTACLEPVC EXTR

#10 S.S. S/M TAMPERPROOF SCREWS

0.062" ALUM. RET. ANGLE

ACRYLIC DOMES25% APPROX. RISE

CONDENSATE GUTTER/WITH WEEP HOLES

0.078" ALUM. FRAME

#10 S.S. S/M SCREWS

1X4 TREATED WOOD NAILER

0.080" ALUM CURB WALL

1" FIBERGLASS INSULATIONFULLY ADHERED AND BANDED

3"

9 5/16"

SKYLIGHTE WILL BE DOUBLE DOMED CLEAR OVER OPAQUE.

*NOTE: EXISTING SKYLIGHT CURB!DIMENSIONS ARE:!ROOF AREA 3 = 61" X 72"!ROOF AREA 12 = 52" X 52"!

INSULATION SYSTEM AND VAPOR BARRIER

INSTALL NEW WOOD BLOCKING TO MEET HEIGHT OF NEW INSULATION. SKYLIGHTS MUST BE LEVEL.

SKYLIGHTS WILL BE WASCO !SENTINEL MODEL DDCAFP FALL !PROTECTION MODEL TO BE!INSTALLED AROUND EXISTING!CURB.


SOUTHAMPTON, PA

EXISTING CURB TO REMAIN


VENT CURB!TUFF FLASH SYSTEM!

ROOF AREA 12!DETAIL #D-VT-620

SPECIFIED POLYISOCYANURATE!AND SECUROCK INSULATION

TWO-PLY!FLASHING

VENT HOUSINGTUFF FLASH FLASHING SYSTEM!FROM FROM VENT HOUSING!OVER TOP OF COUNTERFLASHING

ROOF SYSTEM!2" ABOVE CANT


SOUTHAMPTON, PA

0.050 ALUMINUM!COUNTERFLASHING WITH!4.0" FASCIA

TERMINATION BAR

CANT

MODIFIED MEMBRANE ON TOP!OF CURB TO REMAIN IN PLACE


EXPANSION JOINT DETAIL!ROOF AREAS 4/7!

DRAWING LETTER D-D!DETAIL #D-EX-640

INSTALL NEW 0.050 ALUMINUM EXPANSION JOINT COVER, ATTACHED TO WOOD CURB EVERY 8" O.C.

STRESSPLY PLUS MINERAL FLASHING

NEW GRADE A WOOD CANT & BLOCKING

NEW EXPANSION JOINT COVER WILL BE INSTALLED AND WILL EXTEND AT LEAST 2 INCHES OVER VERTICAL FLASHING. COVER WILL INCLUDE END TERMINATIONS UNDER COUNTERFLASHINGS AT ABUTMENT WALLS AND OVER PERIMETER FLASHINGS. CENTER SPACE WILL BE FILLED WITH COMPRESSIBLE FIBEROUS INSULATION.

3.5 POLYISOCYANURATE INSULATION

COMPRESSIBLE INSULATION

ONE PLY CI BASE FLASHING

NEW TWO-PLY FLASHING TO MATCH OPPOSITE SIDE OF JOINT

CI BASE FLASHING

METAL DECK

STRESSPLY PLUS MINERAL

CUT EXISTING ROOFING SYSTEM A EDGE OF BLOCKING. INSTALL NEW TWO-PLY FLASHING SYSTEM ONTO EXISTING ROOFING SYSTEM



SOUTHAMPTON, PA


VAPOR BARRIER


I-BEAM FLASHING!ROOF AREA 12!

!DETAIL #D-IB-650

SPECIFIED POLYISOCYANURATE!AND SECUROCK INSULATION

TWO-PLY!FLASHING

TERMINATION BAR

METAL COLUMN POST

I BEAM SUPPORT

TUFF FLASH FLASHING SYSTEM!FROM TOP OF I BEAM FLANGE!DOWN OVER TERMINATION BAR

ROOF SYSTEM


SOUTHAMPTON, PA


CHEM-CURB DETAIL!!

DETAIL #D-PP-701

M1 STRUCTURAL SEALANT

CHEMCURB

M1 STRUCTURAL SEALANT

PROPACKPOURABLE SEALANT

2"

7.5 inches

PENETRATIONS

CHEMCURB

BOTTOM AND SCARF JOINTS OF CHEMCURB BONDED WITH M-1 STRUCTURAL SEALANT

PROPACK POURABLE SEALER

PIPE PENETRATIONSTop View

Side View


SOUTHAMPTON, PA


ROUND VENT / PIPE / !HEAT STACK FLASHING!

!DETAIL #D-RV-760

HEAT STACK / PIPE / ROUND VENT

GRADE "A" BLOCKING AND TAPERED EDGE STRIP

HOOD, SOLDER ORCLAMPING RING ANDSEALANT


ROOFING SYSTEM2 PLY FLASHING

0.040 ALUMINUM FLANGE

MASTIC

COLLAR


CANT


SOUTHAMPTON, PA


SOIL STACK FLASHING!!

DETAIL #D-SS-780

LEAD SLEEVEWASTE STACK

SEALANT

ROOFING PLIES

ROOFING MEMBRANE

MASTIC


LEAD FLANGE

MODIFIED FLASHING PLY


*NOTE: SHORT SOIL STACKS WILL BE RAISED TO PROVIDE A MINIMUM HEIGHT OF 8.0" OFF THE FINISHED ROOF SURFACE.


SOUTHAMPTON, PA


DRAIN FLASHING!!

DETAIL #D-DR-800

TAPERED SUMP

4 LB. LEAD 30" x 30",2'' EXTENSION INTO DRAIN

NOTE: DRAIN FLASHING WILL BE INSTALLED AT SAME TIME AS ADJACENT ROOF MEMBRANE INSTALLATION

ISOCYANURATE INSULATION

ROOF SYSTEM

FLASHING PLY

APPROVED MASTIC

INSTALL NEW DRAINS CONFORMING TO EXISTING DRAINS OR SMITH MODEL 1310 WITH DECK CLAMPS AND THREADED RECEIVER OR EQUAL. NO HUB CONNECTIONS ARE ALSO ACCEPTED.

NEW METAL DOMES

*NOTE: DRAIN SUMPS WILL BE A MINIMUM OF 8' X 8' WHERE FLAT STOCK INSULATION IS USED.

1/4" PRIMED SECUROCK


SOUTHAMPTON, PA



WOOD SLEEPER!!

DETAIL #D-WS-850

ELECTRICAL CONDUIT

UNIT OR SUPPORT POST

WALKPAD

ROOF SYSTEMADHESIVE

SLEEPER

CLIP



SOUTHAMPTON, PA

FLOOD & GRAVEL


WALKPAD DETAIL!!

DETAIL #D-WP-860

WALKPADS TO BE 32" x 32" x 3/8" DYNATRED PLUS WALKWAY PAD


TORCH APPLIED MODIFIED ROOFING SYSTEM

3 FEET

APPROVED PLASTIC CEMENT3/8" THICK

WALKPADS MANUFACTURED BY MANVILLE OR EQUAL

ROOFING SYSTEM


32"

32"

FLOOD & GRAVEL


SOUTHAMPTON, PA


ROOF LADDER DETAIL!!

DETAIL #D-RL-900

Top of Wall

2 1/2" x 3/8" Bent BarBracket to Ladder

2 1/2" x 3/8" Flat Bar

NOTE: Ladder will be aluminum mill finish by Precision Ladders or equal.

Hei

ght a

s Req

uire

d3'

-0"

1'-4"

1 1/4" Pipe

Plug Weld

1/2" EXP Bolt

3/4" Dia. Rungs 12" O.C.

1'-0

"6"

6"1'

-0"

6"1'

-0"

8"

Weld All Around

Closed Bend

36"

LOWER ROOF

UPPER ROOF

2'-0"

ROOF AREA 6 TO ROOF AREA 7 = 5'-8"!ROOF AREA 4 TO ROOF AREA 2 = 11'-3"


SOUTHAMPTON, PA

Centennial School District Klinger Middle School Repairs to Roof Area 11 Section 075220

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1.0 CAULKING AND COATING OF EXISTING SKYLIGHTS ON ROOF

AREA 11: OSHA Fall Protection Standards will be enforced while working around the skylights. 1.1 Caulking:

A. The three skylights to the west of Roof Area 11 will be cleaned of all existing caulking and will be recaulked along all metal frames at the skylight surface.

B. Sealant for Fiberglass to Metal and Metal to Metal surfaces: 1. Material will be Dow Corning 795 Building Sealant. Color to be selected by the School District. a. Sealant to be one-part, neutral-cure, architectural-grade RTV silicone sealant that easily extrudes in any weather and cures quickly at room temperature. 2. Surface Preparation: a. Clean all joints, removing all foreign matter and contaminants such as grease, oil, dust, water, frost, surface dirt, old sealants or glazing compounds and protective coatings. 3. Application: a. Install backing material or joint filler, setting blocks, spaced shims and tapes as required. b. Mask areas adjacent to joints to ensure neat sealant lines. c. Primer is not generally required on non-porous surfaces. A test placement is recommended. d. Apply sealant in a continuous operation using positive pressure. e. Sealant can be applied using many types of air operated guns and most types of bulk dispensing equipment.


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f. Before a skin forms (typically with 15 minutes), toll the sealant with light pressure to spread the sealant against the backing material and joint surfaces. g. Remove masking tape as soon as the bead is tooled. 1.2 Coating of Skylight: A. The surface of the skylight will be coated with Sikalastic Clearglaze. Sikalastic® Clearglaze (Decothane® Clearglaze) is a clear, aliphatic, polycarbonate, polyurethane coating. B. Coverage Rates: The average rate for Sikalastic Clearglaze will depend on the intended function of the coating. Please consult our Technical Services Department for details about specific application. System∗ Coverage

Approx WFT/mils

Unreinforced- General Weatherproofing

80 ft2/gal 20 mils

Unreinforced- Anti-Carbonation

40 ft2/gal 40 mils

Reinforced Waterproofing System (2 coats)

40 ft2/gal 40 mils

∗ Plus wastage/embedment allowance. C. Preparation: Ensure surface is clean and sound prior to application of Sikalastic Clearglaze. Any areas contaminated with moss or lichen must be treated with Liquid Plastics’ Bioclense to prevent re-development. D. Application: Once the relevant system has been selected, please refer to the above for details of coverage rates. Rough, porous, absorbent or undulating surfaces will inevitably increase the quantity of coating required. Surface preparation for a clear coating must be thorough, particularly in relation to the removal of all organic growth. Always allow primer and any previous coat to dry/cure thoroughly before applying the following coat. Coatings will generally require curing overnight, although under optimal conditions (at higher temperatures and higher relative humidity) work may often recommence sooner. Do not thin or brush out like


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conventional coatings. When using brushes, the first coat should ideally be applied in one direction only, where possible, the second coat should be applied at right angles to the first. E. Equipment: 1. Roller: Use on flat or undulating surfaces but not on rough surfaces. Lay using light pressure in two coats to bring up to required coverage rate using a medium pile sheepskin roller, do no over work. In excess of 40ft2/gallon total applications, three coats may be needed to avoid slump. 2. Brush: Apply in two coats. Apply second coat at right angles to first coat whenever possible. Use a soft nylon or bristle brush. Application limits per coat are the same as for roller applications. F. Clean up: Before curing, flush/wash equipment with MEK, cleaning solvent, xylol or cellulose thinners. Avoid any solvents containing alcohols. DO NOT thin material unless specifically allowed by LP technical personnel. 2.0 REFLASHING OF DESIGNATED SKYLIGHT CURBS: A. The three (3) barrel skylights, within Roof Area 11, will be reflashed. B. Existing flashings will be removed. Existing roof surface will have gravel and flood coat spud back to a smooth clean surface approximately 15 inches back from the skylight curb. Exposed membrane will be primed with quick drying asphalt primer at the rate of 2 gallons per 100 square feet. New fiber cants will be installed. C. Over the top of the roofing felts, install one (1) base ply of TriBase flashing membrane, fully adhered with asphalt cement, extending six (6) inches beyond the base of the cant and up the face of the curb to be terminated just below the existing counterflashing. D. Over the base ply install one (1) ply of Stressply Mineral Surfaced Membrane, fully adhered in the same manner as the base ply. It shall extend twelve (12) inches beyond the base of the cant and up the curb to the same point as the base ply.


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E. Leading edge of surface flashing will be covered with 6 inch reinforcing fabric set in and topped dressed with asphalt mastic. Strap will be centered over the lap. F. Laps of flashings will be 4 inches. Along the top edge of the completed flashing membrane system, mechanically attach, eight (8) inches on center, both flashing plies with manufacturers approved fasteners. Cold applied flashings will required 3 coarse application and mesh and Silver Flash mastic. G. Asphalt tape will be applied between flashing and metal curb. A termination bar with slotted holes and caulking cup will be installed at top edge of flashing fastened 6 inches on center. H. Termination bar and metal will be cleaned of all dirt and materials. Bar and metal curb at caulking location will be wiped clean with approved cleaner and primed. Bar will receive a bead of General Purpose Sealant tooled in place. I. On all curbs install a 4 inch, 0.040 aluminum extender from under the frame over the new flashing and termination bar. Fasten extender to curbing every 8” on center. Fasteners will have neoprene washer and top edge of flashing will be caulked with General Purpose Sealant, tooled in place to present a neat, clean appearance. J. The existing gravel will be removed in an area around each skylight as noted on the drawing. All dirt, debris and loose gravel must be removed. K. After the cleaning and removal of all loose gravel in each designated area is

complete, apply cold applied modified coal tar pitch poured at 5 gallons per 100 square feet and promptly cover with clean and washed smooth roof pea gravel at the rate of 450 pounds per 100 square feet. Gravel will be dry and applied immediately for proper embedment into flood coat. Gravel will be tan in color

L. Flood coat will extend over tie-in area and over lap of surface flashing ply. 3.0 CLEAN-UP: A. Grounds around Building and rooftops will be cleaned of all paper and debris. Cleaning must meet the satisfaction of the School District’s Project Manager. B. Dumpster will be covered at the end of each days work. Area around dumpster will be cleaned on a daily basis.


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C. The finished roof system will be clean and free of any and all marks or spills. The School District’s Project Manager must approve the final appearance of the roofing project before the project is deemed complete.

1.0 roof removal / metal & concrete deck 33...2.10 **the floor of the gymnasium (roof area 3)...

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