6.0POWER HOUSEITEM 6.1CLEARING AND GRUBBING(Same as Item 2.2)

ITEM 6.2EARTH EXCAVATION(Same as Item 2.3)

ITEM 6.3ROCK EXCAVATION(Same as Item 2.4)

ITEM 6.4HAULING OF MATERIALS(Same as Item 2.5)

ITEM 6.5GRAVEL (BASE COURSE)6.5.1 GENERAL6.5.1.1 DESCRIPTIONThis item shall include furnishing, placing and compacting and all labor, materials, tools and equipment necessary for furnishing and placing one or more layers of gravel base or leveling course on a prepared surface to the lines and grades in accordance with this specification or as shown on the Plans otherwise identified by the Engineer.6.5.2MATERIAL REQUIREMENTSAggregate for base course shall consist of hard, durable particles or fragments of crushed stone, crushed slag, or natural gravel and filler of natural or crushed sand or other finely divided mineral matter. The composite material shall be free from vegetable matter and lumps or balls of clay, and shall be such nature that it can be compacted readily to form a firm, stable sub base. The base course material shall conform to the following table whichever is called for in the Bill of Quantities.SieveDesignationMassPercent Passing

Standard (mm)Alternate US StandardGRADING AGRADING B

502100-

37.511/2-100

25.0160 85-

19.0-60 85

12.535 65-

4.75No. 420 5030 55

0.0425No. 405 208 25

0.075No. 2000.122 14

The fraction passing the seventy five hundredths (0.75) millimeters (No. 200) sieve shall not be greater than 0.66 (two thirds) of the fraction passing the four hundred twenty five thousandths (0.425) millimeters (No. 40) sieve. The fraction passing the four hundred twenty five thousandths (0.425) millimeters (No. 40) sieve shall have a liquid limit not greater than twenty five (25) and plasticity index not greater than 6 as determined by AASHTO T 89 and T 90, respectively.Those coarse portions, retained on a two (2) millimeters (No. 10) sieve shall have a mass percent or wear not exceeding fifty (50) by the Los Angeles Abrasion test determined by AASHTO T 96.The material passing the nineteen (19) millimeters ( inch) sieve shall have a soaked California Bearing Ratio (CBR) value of not less than eighty (80) percent as determine by AASHTO T 193. The CBR value shall be obtained at the maximum dry density (MDD) as determined by AASHTO T 180, Method D.If filler, in addition to that naturally present, is necessary for meeting the grading requirements or for satisfactory bonding. It shall be uniformly blended with the base course material on the road or in a pug mill unless otherwise specified or approved. Filler shall be taken from sources approved by the Engineer. It shall be free from hard lumps and shall not contain more than fifteen (15) percent of material retained on the four and seventy five hundredths (4.75) millimeter (No. 4) sieve.6.5.3CONSTRUCTION REQUIREMENTS6.5.3.1 PLACINGThe aggregate sub base materials shall be placed at a uniform mixture on a prepared subgrade in a quantity which provide the required compacted thickness. When more than one layer is required, each layer shall be shaped and compacted before the succeeding layer is placed. The placing of materials shall begin at the point designated by the Engineer.Placing shall be from vehicles especially equipped to distribute the material in continuous uniform layer or windrow. The layer or windrow shall be such size that when spread and compacted, the finished layer be in reasonably close conformity to the nominal thickness shown on the Plans.6.5.3.2 SPREADING AND COMPACTINGWhen uniformly mixed, the mixture shall be spread to the planthickness, for compaction. Where the required thickness is one hundred fifty (150) millimeter or less, the material may be spread and compacted in one layer. Where the required thickness is more than one hundred fifty (150) millimeter, the aggregate sub base shall be spread and compacted in two or more layers of approximately equal thickness, and the maximum compacted thickness of any layer shall not exceed one hundred fifty (150) millimeter. All subsequent layers shall be spread and compacted in a similar manner. If the layer of subsequent material, or part thereof, does not conform to the required finish, the Contractor shall, at his own expense, make the necessary corrections.Compaction of each layer shall carry on until a field density of at least one hundred (100) percent of the maximum dry density is defined in agreement with AASHTO T 180 has been achieved. In place density determination shall be made in accordance with AASHTO T 191.6.5.3.3 METHOD OF MEASUREMENTAggregate Base Course will be measured by the cubic meter. The quantity to be paid for shall be the design volume compacted in place as shown on the Plans, and accepted in the completed base course. No allowance shall be given for materials placed outside the design limits shown on the cross sections. Trial section shall not be measured separately but shall be included in the quantity of aggregate base course.6.5.4 MEASUREMENT/BASIS OF PAYMENTThe accepted measured quantities shall be paid for at the contract unit price for Aggregate Base Course which price and payment shall be full compensation for furnishing and placing all materials, including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.6REINFORCING BARS GRADE 40(Same as Item 2.2.3)

ITEM 6.7FORM/DEFORM WORKS(Same as Item 2.2.4)

ITEM 6.8CONCRETING WORKS (3500 PSI)(Same as Item 2.3.5)

ITEM 6.9FABRICATION AND INSTALLATION OF STEEL STRUCTURES(Same as Item 5.2.1)

ITEM 6.10FABRICATION AND INSTALLATION OF STEEL FRAMINGS FOR SIDINGS6.10.1 GENERAL6.10.1.1 DESCRIPTIONThis item includes all labor, equipment, materials and incidentals for fabrication and installation of steel frames for sidings. All process for the stated work shall be in accordance with the standards.6.10.2MATERIAL REQUIREMENTSQuality in all materials shall be ensured to meet all required parameters as shown on the Plans. All materials shall comply with the latest applicable standards of the ASTM, unless otherwise specified or approved by the Engineer.Fabricator shall be well experienced in metal fabrications and can successfully produce similar to what is shown on the Plans. He should also have sufficient production capacity to fabricate required units without causing delay in the work.Welds and welding processes shall comply on specifications as provided herein. Welders shall be efficient with accomplished satisfactory trainings and passed AWS qualification.6.10.2.1DELIVERY, STORAGE AND HANDLINGShipping statements shall be delivered in the jobsite. The Engineer shall inspect the materials per delivery taking into account the deliverys quantity and condition. Materials shall be properly protected against damage to finished surfaces.Store materials in a location and in a manner to avoid damage. Stacking shall be done in a way which will prevent bending. Storage shall be clean and dry. Cover with any suitable covering or as prescribed by the Engineer in a manner that will permit circulation of air inside the cover.Keep handling on site to a minimum. Exercise care to avoid damage on finishes of materials.6.10.2.2PROJECT CONDITIONSCheck actual locations of walls and other constructions to which metal fabrications must fit, by accurate field measurements before fabrication; show recorded measurements on final shop drawings. Coordinate fabrication schedule with construction progress to avoid delay of work.Where field measurements cannot be made without delaying the work, guarantee dimensions and proceed with fabrication of products without field measurements. Coordinate construction to ensure that actual opening dimensions corresponds to guaranteed dimensions. Allow for trimming and fitting.6.10.2.3FABRICATIONForm metal fabrications from materials of size, thickness, and shapes indicated but not less than that needed to comply with performance requirements indicated. Work to dimensions indicated or accepted on shop drawings, using proven details of fabrication and support. Use type of materials indicated or specified for various components of each metal fabrication.Form exposed work true to line and level with accurate angles and surfaces and straight sharp edges.Allow for thermal movement resulting from the following maximum change (range) in ambient temperature in the design, fabrication. And installation of installed metal assemblies to prevent buckling, opening up of joints, and overstressing of welds and fasteners. Base design calculations on actual surface temperatures of metals due to both solar heat gain and nighttime sky heat loss.Temperature must range if applicable between 100 deg. F (38 deg. C).Shear and punch metals cleanly and accurately. Remove burrs.Form bent metal corners to smallest radius possible without causing grain separation or otherwise impairing work.Remove sharp or rough areas on exposed surface.Weld corners and seas continuously to comply with AWS recommendations and the following:a.Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.b.Obtain fusion without undercut or overlapc.Remove welding flux immediatelyd.At exposed connections, finish exposed welds and surfaces smooth and blended so that no roughness shows after finishing and contour of welded surface matched those adjacent.Form exposed connections with hairline joints, flush and smooth, using concealed fasteners wherever possible. Use exposed fasteners of type indicated. Locate joints where least conspicuous.Provide for anchorage of type indicated; coordinate with supporting structure. Fabricate and space anchoring devices to provide adequate support for intended use.Preassemble items in shop to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. Use connections that maintain structural value of joined pieces. Clearly mark units for reassembly and coordinated installation.Cut, reinforce, drill and tap miscellaneous metal work as indicated to receive finish hardware, screws, and similar items.Fabricate joints that will be exposed to weather in a manner to exclude water, or provide weep holes where water may accumulate.6.10.3 MEASUREMENT/BASIS OF PAYMENTThe accepted quantity, measured as Bill of Quantities shall be paid for at the contract unit price for steel materials which price and payment shall be full compensation for furnishing and placing all materials, including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.11FABRICATION AND INSTALLATION OF TRUSS6.11.1 GENERAL6.11.1.1 DESCRIPTIONThis item includes all labor, materials, equipment and processes necessary for fabrication and installation of steel truss. Installation method shall be in accordance with standard specifications6.11.2MATERIAL REQUIREMENTS6.11.2.1FABRICATIONa.Factory fabricate cold formed steel trusses plumb, square, true to line, and with connections securely fastened, according to manufacturers recommendations and the requirements of this section.- Fabricate truss assemblies in jig templates- Cut truss members by sawing or shearing or plasma cutting- Fasten cold formed steel truss members by screw fastening or other methods as standard with fabricatorb.Care shall be taken during handling, delivery and erection. Brace, block, or reinforce truss as necessary to minimize member and connection stresses.

6.11.2.2INSTALLATIONa.General- Erection of trusses, including proper handling, safety precautions, installation of bracing and other safeguards or procedures is the responsibility of the Contractor and the Roof Installer.- Exercise care and provide installation bracing required to prevent toppling of trusses during erection. Provide furring channel or stud material for lateral bracing.b.Erect trusses with plane of truss webs vertical and parallel to each other, accurately located at design spacing indicatedc.Provide proper lifting equipment, including spreader bar, suited to sizes and types of trusses required, applied at lift points recommended by truss fabricator. Exercise care to avoid damage to truss members during erection and to keep horizontal bending of the trusses to a minimum.d.Provide framing anchors as indicated on the Plans or accepted by the Engineer. Anchor trusses securely at bearing points.6.11.2.3ROOF TRUSSES INSTALLATIONa.Install trusses per installation documentsb.Space trusses per sealed truss drawingsc.Do not alter, cut, or remove truss members or connections of truss membersd.Erect trusses with plane of truss webs plumb and parallel to each other, align, and accurately position at spacing indicated.e.Erect trusses without damaging truss members or connections.f.Anchor trusses securely at all points of support, per installation documents.g.Install all continuous bridging and permanent truss bracing per installation documents.h.Perform all truss to truss connections per installation documents.6.11.3 MEASUREMENT/BASIS OF PAYMENTThe method of measurement is as per accomplishment of installed steel truss. Fabrication, supply and installation of steel truss shall be included in the Bill of Quantities. The accepted quantities, measured shall be paid for at the Contract unit price Pay Items that is included in the Bill of Quantities, which price and payment shall be full compensation for furnishing all labor, equipment, tools and incidentals necessary to complete the Work prescribed in this Item.

ITEM 6.12FABRICATION AND INSTALLATION OF PURLINS6.12.1GENERAL6.12.1.1 DESCRIPTIONThis specification covers the design, manufacture, shipping, handling and erection of a prefabricated membrane covered structure.6.12.2 MATERIAL REQUIREMENTSThe membrane shall be tensioned over the framework. The structure shall be rectangular in shape with vertical gable end walls. The interior of the structure below the main trusses shall be clear span free of any structural support members and shall provide unobstructed floor space. No exterior purlins, guy ropes or cables shall be used for anchoring the structure.6.12.3 EXECUTIONRoof and Walls Surfaces: To provide for maximum compatibility with standard door, window, ventilation and other accessory and cladding systems and the structure shall be designed such that roof and gable side wall surfaces form flat planesPurlin Spacing: To provide for structural stability and to provide for the installation of accessory items, the main structural trusses shall be laterally braced by purlins at intervals required in the truss design.Connecting Joints: Connections between structural elements shall be designed so as to transfer the compressive and tensile forces present in a given joint.Mechanical Equipment Interface: The main structural roof trusses shall allow for installation of electrical and mechanical equipment. Likewise, the structure shall accept penetration through the membrane for access doors and mechanical services with minimal modification.Shipping: The main structural trusses shall be two dimensional; planar trusses which nest tightly together in order to minimize shipping and storage volume.Ancillary System: The structure shall be designed such that it can be readily retrofitted with insulation systems and other ancillary system such as lighting, sprinklers, HVAC, etc.6.12.3.1 HANDLING AND STORAGECorrect handling and storage is critical to ensure the purlin is not damaged on site. The following points must be adhered to for maximum product durability and performance over the expected life of the product.a. A visual inspection should be carried out, when delivery is taken on site, of all the material supplied to ensure the product is free from damage and the galvanized coating is in good condition.b. Damaged product resulting in a distorted or buckled section shape must be installed and should be replaced.c. Site storage must be clear of the ground on dunnage to allow the free movement of air around each bundle. When product is stored on site, it must be kept dry using covers over each product bundle.d. Wear protective gloves when handling the product. Treat all cut edges as sharp.e. Product must always be lifted when and not dragged as damage to the galvanized coating will occur.f. Diamond bracing must be relied upon to act as lifting points during crane age of preassembled sections.6.12.4MEASUREMENT/BASIS OF PAYMENTThe method of measurement is as per accomplishment of installed purlins. Fabrication, supply and installation of purlins shall be included in the Bill of Quantities. The accepted quantities, measured shall be paid for at the Contract unit price Pay Items that is included in the Bill of Quantities, which price and payment shall be full compensation for furnishing all labor, equipment, tools and incidentals necessary to complete the Work prescribed in this Item. ITEM 6.13FABRICATION AND INSTALLATION OF ROOFING6.13.1GENERAL6.13.1.1DESCRIPTIONThis item includes all labor, materials, equipment and processes necessary for fabrication and installation of roofing. Installation method shall be in accordance with standard specifications.6.13.2MATERIAL REQUIREMENTSMaterials for roofing shall be one and two tenths (1.2) millimeters thick Coloroof sheet as shown on the Plans. For instances where substitution or alteration is required, the Contractor shall seek for the Engineers approval. Tools and sealing materials shall be of approved quality.Materials shall be protected from damage during delivery to the site and should be stored in a storage approved by the Engineer. Avoid putting heavy objects on top of roofing or any act that will cause deformation to the materials.6.13.3EXECUTIONRoofing shall not be applied during rain or while surfaces are damp, it shall be applied only to surfaces that are clean and dry. The Contractor shall protect the sheets from damages during laying and subsequent operation and shall replace at his own cost all damaged sheets to the satisfaction of the Engineer.6.13.4MEASUREMENT/BASIS OF PAYMENTThe area covered will be paid for based on the number of square meter measured or based on the number square meters measured or based on the quantity installed or can be made in lump sum in conformity with the plans or as directed by the Engineer.The accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.14MASONRY WORKS6.14.1 GENERAL6.14.1.1 DESCRIPTIONMasonry works shall include the furnishing of all labor, material, and equipment, and performing all operations necessary to execute all concrete masonry construction, as specified.6.14.2 CONTRACTORS SCOPEContractor shall make all preparations and do all work necessary to receive and adjoin other work. He shall specify the position of all dowels required for masonry on the construction including foundations.6.14.3 MATERIAL REQUIREMENTS6.14.3.1 QUALITY ASSURANCESpecification Referencesa. Portland Cement Philippine Trade Standard, 661-01-02-1972b. Concrete Hollow Blocks Philippine Trade Standard, 661-09-11, 1968c. Steel Reinforcement Bar Philippine Trade Standard, 681-04-02, 1979Tolerancea. Masonry Units shall be set plumb and true to line with level horizontal joints within the following tolerances:- Variation from the plumb in the lines and surfaces of columns, walls and arises- In adjacent masonry units 3 millimeters- In 3 meters 6 millimeters- In any story or 1 centimetersb. Variations of the linear building lines from established positions of columns, walls and partitions:- In any bay or 6 meters 105 centimeter- In 12 meters 2 centimetersc. Joints- Nominal 1 centimeter- Maximum 1.5 centimeters6.14.3.2 PRODUCT DELIVERY, STORAGE AND HANDLINGMasonry Units shall be handled in manner to avoid chipping, breaking and intrusion of foreign matters. Units shall be stored separately as regards to two type, straight, shape and size above ground on level platforms, allow air circulation, and to protect from contact with soil. Units shall be protected wetting prior use.Reinforcing bars shall be delivered in bundles, tagged or separated for prompt identification. Bars shall be stored in a manner to avoid excessive rusting coating with grease, oil, dirt and objectionable materials and shall be stock on kids or rocks.6.14.3.3CONCRETE MASONRYConcrete masonry unit shall conform to Philippine Trade Standard Specification 661-09-11 Type 1 with normal thickness as indicated in the drawings. For exposed wall construction, the face of units shall be equal and true, free of cracks, chips and other imperfections.a. Hollow load bearing units shall be Class A with compressive strength at 28 days as follows:Average of five tests800 psiIndividual tests1000 psib.Hollow non load bearings units shall have compressive strength at 28 days as follows:Average of five tests3000 psiIndividual tests3500 psic. Material Uses:Hollow non bearing units shall be used for all non load bearing walls and partitions not exceeding three (3) meters in height except that of the option of the Contractor, load bearing units may be used in lieu of non load bearing units. 6.14.3.4SPECIAL MASONRY UNITSWhenever corner, corner return, control joint header, lintel and bond beams, sash, jamb and sill are required, they shall be as manufactured commercially to suit specification requirements. Special masonry units shall be uniform texture and exposed surfaces to match the masonry units and be free of cracks and broken edges.Lintel and bond beams, and sill shall be fabricated from three thousand (3000) psi compressive strength concrete.6.14.3.5REINFORCEMENTReinforcement steel bars shall conform to Philippine Trade Standard Specification 681 04 02, Grade 1 of sizes as indicated in the drawings. Splices shall be form by lapping bars as shown and wire tying them. Splices in adjacent horizontal bars shall be staggered. Reinforcement for lintel and bond beams when not indicated shall not be less than two of twelve (12) millimeters diameter bars.6.14.3.6MORTAR AND GROUTMortar shall be mixed in the proportions of one part Portland cement and six (6) parts sand and one fourth () liter of mortar Plasticizer (Sealoplaz). Mortar materials shall be measured by volumetric proportioning in approved containers that will ensure that the specified proportions of materials will be controlled and accurately maintained during the progress of the work. Measuring materials with shovels will not permitted. Unless specified otherwise, mortar shall be mixed in such a manner that the materials will be distributed uniformly throughout the mass. A sufficient amount of water shall be added gradually and the mass further mixed, not less than three (3) minutes, until a mortar of plasticity necessary for the purposes intended is obtained. Mortar boxes, pans or mixer drums shall be kept clean and free of debris and dried mortar. The mortar shall be used before the initial setting of the cement has taken place. Reworking of mortar in which cement has started to set will not be permitted.Grout shall consist of a mixture of Portland cement conformed to Philippine Trade Standard Specification 66-01-02, Type 1 and aggregate as specified herein after. Water shall be added in sufficient quantity to produce a fluid mixture. Fine grout shall be provided in grout spaces less than two (2) inches in any horizontal dimension or in which clearances between reinforcing and masonry is less than inch. Coarse grout shall be provided in grout spaces two (2) inches or greater in all horizontal dimensions and clearances between reinforcement and masonry is less than three fourths () inch.Fine grout shall be mixed in proportions in one part Portland cement and three fourths () parts sand.Coarse grout shall be mixed in proportions of one part Portland cement, three (3) parts sand, and three (3) parts of gravel passing a 3/8 inch sieve.6.14.4EXECUTION6.14.4.1INSPECTIONProper handling and storage of material shall be verified and test reports and certificates shall be checked before the start of concrete masonry unit work. During installation, cracked or broken units shall be rejected. Bond pattern and layout shall be checked to ensure minimum cutting and breaking of bond units. Critical details such as control or expansion joints and reinforcing bars shall be verified for proper installation. Proper procedures shall be utilized during work stoppage or between workdays. All finished wall surfaces shall be cleared and ready for further protective coating.6.14.4.2INSTALLATIONOnly dry masonry units shall be laid not unless a different pattern in indicated, units shall be laid in running bond pattern with vertical joints breaking on the center of units, and wherever possible, full units of the proper sized shall be used in lieu of cut units. Cutting and fitting where required to accommodate the work by others shall be done by masonry mechanics using power masonry saws. Unit shall be wet cut. All cut edges shall be neat, true and sharp as possible. Units shall be laid with full mortar coverage on horizontal and vertical faces shells except that webs shall also be bedded in all starting courses on footings and around cells that are to be reinforced and filled with grout. One section of any wall shall not be carried up in advance of the others. Horizontal reinforcement shall be deformed reinforcing bars. Step back unfinished work for joining with new work. Toothing shall not be permitted. Bolts, inserts, anchors and other built in items shall be installed as work progresses. Cells containing embedded items shall be solidly grouted.6.14.4.3REINFORCED MASONRYUnits shall be laid with full head and bed joints in running bond and laying shall be done so as to preserve the unobstructed vertical continuity of cores to be filled. Cross webs adjacent to vertical cores to be filled with grout shall be fully embedded in mortar to prevent leakage of grout. Reinforcing shall be positioned accurately as indicated and horizontal reinforcing shall be embedded in grouts as laying proceeds. Only masonry units free from chipped edges or other imperfections shall be laid for all exposed masonry surfaces. All wall openings shall be provided with an additional reinforcing bar all around the opening. Rebar shall be twelve (12) millimeters in diameter when not indicated in the plans. All mortar protruding into grout spaces shall be removed prior to grouting. Cleanouts holes shall be provided at the bottom of every core containing vertical reinforcement when grouting height exceeds twenty four (24) inches. Cleanouts shall be plugged after reinforcement and final cleaning of the grout spaces have been completed. Backfill foundation walls seven (7) days after grouting of cells have been completed.6.14.4.4JOINTINGJoints in exposed masonry surfaces shall be tooled slightly concave, unless indicated otherwise. Tooling rod shall be one half () inch minimum size. Joints shall be tooled when the mortar is thumbprint hard. Joint is concealed masonry shall be brushed to remove all loose and excess mortar. Reinforced masonry foundation walls shall be backfilled minimums of seven days after grouting of cell have been completed.6.14.4.5LINTEL AND BOND BEAMSLintel and bond beams shall consist of beam units reinforced as indicated but with not less than two (2) of twelve (12) millimeters diameter bars where not indicated, and shall be filled with grout, a wire mesh or small mesh metal lash shall be placed under bond beam units to contain grout within the spaces. Structural bond beams shall be continuous at control joints and discontinuous at seismic and expansion joints. Silts shall be set with only the ends bedded in mortar remainder of silt joints shall be left open until painting. Slip type sills shall be set in full mortar bed. Vertical joints in sills shall be pointed with mortar. Sills shall have drip grooves on underside where units overhang the walls.6.14.4.6CONTROL JOINTSControl joints on masonry walls shall be provided as indicated. Seating of control joints shall be specified somewhere in this specification.6.14.4.7POINTING AND CLEANINGAll holes in exposed masonry surfaces shall be pointed. All defective joints shall be cut out and truck point solid with mortar. Excess loose mortar shall be removed from all exposed masonry and finished masonry surface shall be left free from loose mortar and stains. All exposed surfaces of masonry shall be cleaned from the top down with either a solution of trisodium phosphate and household detergent or muriatic acid and clean water. Surfaces shall be free from mortar stain, drippings, efflorescence and other foreign substances.Cleaning shall be as follows:a. Wet walls thoroughly before applying solutionb. Scrub walls with stiff fiber brushesc. Apply cleaning solution in the following proportion: - One half () cup trisodium phosphate and one half () cup household detergent dissolve in one (1) gallon (3.78 liters) of clean water - One part commercial grade of muriatic acid to nine parts of clean waterd. Rinse surfaces with clean water.6.14.4.8PROTECTION OF COMPLETED WORKStaining of masonry facing shall be prevented immediately by removing any misplaced grout or mortar. All sills, ledges and offsets shall be protected from mortar droppings or other damages during construction.6.14.5MEASUREMENT/BASIS OF PAYMENTThe accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.15 DRAINAGE CANAL6.15.1 GENERAL6.15.1.1 DESCRIPTIONThis item is applicable for the construction and installation of with non-reinforced slip-formed concrete lined field ditches, canals and laterals. The field ditches, canals and laterals shall be constructed at the location and to the dimensions as shown in the plan.6.15.2 MATERIAL REQUIREMENTS6.15.2.1 CONCRETEa.Concrete mixes shall be composed of Portland cement, fine and coarse aggregates and water. The mix shall be submitted to the Engineer or his representative prior to construction. The final strength of the concrete mix shall be a minimum of 3,000 psi. The slump shall be one (1) to three (3) inches maximum and shall not move after being placed. Nine (9) bags of cement per cubic meter of concrete is required.b. The course and fine aggregates shall conform to the durability and gradation requirements of ASTM Specification C 33 and the potential reactivity of aggregates with the alkalis in cement shall also conform to the requirement in ASTM Specification C 33, Appendix A1. Aggregate of each class and size shall be stored and handled by methods that prevent segregation of particle sizes or contamination by intermixing with other materials. The maximum size of the aggregate shall be three fourths () inch unless otherwise stated on the drawings.c. Portland Cement shall conform to the requirements of ASTM Specification C 150 for the specified types of cement. Type I or Type II cements shall be used, unless another type is specified on the drawings. Cement shall be stored so that it is protected from weather, dampness or other destructive agencies. Cement that is partially hydrated or otherwise negatively affected will be rejected.d. Water shall be clean and free from harmful chemicals6.15.3 EXECUTION6.15.3.1 SITE PREPARATIONThe foundation area shall be cleared of vegetation, inorganic material and rocks with a dimension greater than two (2) inches. The fill material shall be placed in horizontal layers with a maximum lift of four (4) inches before compaction. The moisture content of the fill material shall be adequate so that a firm dense foundation can be achieved. Fill section with a height of two (2) feet or greater will be constructed using the compaction requirements of AASHTO for Earth Fill. Other compaction methods may be used if the fill sections are allowed seasonal consolidation for at least six (6) month period and are approved by the Engineer or his representative.6.15.3.2 CONSTRUCTIONa. FoundationThe foundation surface for all concrete lining shall be moist when the concrete is placed. The concrete shall not be placed on mud, excessively dry soil, non-compacted fill, ice, frozen soil or soil containing vegetation or other debris.b. Mixers or Mixing Concrete may be furnished by batch mixing at the work site or by ready-mix methods.c. Placement Slip-forms shall be operated to achieve a uniform thickness of the concrete lining. The thickness of the lining shall be detailed on the drawings, but in no case less than two (2) inches.d. Control and Construction Joints Control joints shall be one fourth () inch wide perpendicular of the concrete lining, at a depth equal to one third (1/3) of the lining thickness with a uniform spacing not to exceed ten (10) feet. Construction joints shall be the butt type, formed square with the lining surface and at right angles to the ditch or canal. Control and construction joints shall have smooth finishes.e. Curing The concrete shall be cured for not less than five (5) days using of method impounding water over the exposed surface after the initial set up of the concrete.6.15.3.3 ACCEPTANCEThe final acceptance of the work will be by inspection and to conformance to the requirements of this construction specification and the accompanying design. Construction operations shall be performed in such a manner that erosion, air, and water pollution shall be minimized. National and local laws concerning pollution abatement must be followed.6.15.4MEASUREMENT/BASIS OF PAYMENTThe accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.16 DOORS AND WINDOW6.16.1 GENERAL6.16.1.1 DESCRIPTIONThis item includes all labor, materials, equipment, tools and processes necessary for furnishing, fabrication and installation of all metal doors, window/louvers and accessories as shown on the Drawings and as specified herein. Installation method shall be in accordance with standard specifications6.16.2 SUBMITTALSSubmit shop drawings of all metal windows and louvers for approval.No work shall be started until the Engineer has approved all shop drawings.6.16.3 MATERIAL REQUIREMENTS6.16.3.1 PRODUCT DELIVERY AND STORAGEProducts shall be protected and kept under cover both during transmit and at the jobsite.6.16.3.2 QUALITY ASSURANCEAll metal windows and louvers shall be products of reputable manufacturer and are approved by the Engineer.Applicable standards and specifications specified in item related to structural steel somewhere in this specification shall hold wherever applicable.6.16.4EXECUTION6.16.4.1 FABRICATION AND MANUFACTUREUnless otherwise indicated, all window frames shall be constructed to withstand a minimum two hundred twenty four (224) kilogram per square meter wind load with the sashes or blades in closed positioned.Windows shall be designed foe glazing from outside with continuous glazing beads.All steel used to manufacture doors, frames, anchors, and accessories shall conform to ASTM A1008, Standard Specification for Steel Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability and A 568. General Requirements for Standard Specification for Steel Sheet, Carbon, and High-Strength, Low-Alloy, Hot -Rolled and Cold-Rolled.6.16.4.2 STEEL CASEMENT WINDOW-Windows members shall be hot-rolled, low carbon, new billet steel.-Frame and vent sections shall be zee bars not less than 1 inch in depth with web thickness of not less than four (4) millimeters (5/32 inch)-Corners of frames and vents shall be mitered, electrically butt-welded and forged after welding to ensure correct alignment. Mountings shall be nineteen and one tenths (19.1) millimeter (3/4 inch) by nineteen and one tenths (19.1) millimeter (3/4 inch) minimum size tee bars and shall be attached to frame or vent members by means of mortis and tendon joints, electricity hot-riveted.-Mounting intersections shall be of the interlocking design.-Outward opening side-hung casements shall be hung on forged steel hinges, welded to the frame and riveted to vent members.-Hinges shall be of the extended friction type and have bronze to steel contract surfaces throughout. Hinge pins shall be bronze.-Double, full contact weathering shall be provided between vents and frames around the perimeter of each vent.-Casements vents shall be equipped with bronze cam candles. Handles shall be designed for secure attached to ventilators and shall affect tight closure of vents when locked.-Casements vents shall be held securely in open positioned by means of bronze peg stay.-Projected type steel windows shall be bonderized and then given one shop coat of approved gray metallic priming paint before delivery to site.6.16.4.3 METAL LOUVERS-Metal louvers shall be of the fixed type fabricated from galvanized steel sheets to shapes and sizes and indicated.-Louvers frames and blades shall be heavily zinc-coated steel sheet.-The blades shall be gage eighteen (18) and the frames shall not be less than gage fourteen (14). Blades shall be accurately fitted and firmly secured to the frames. The edges of all louvers blades shall be folded or beaded for rigidity.6.16.4.4 FIRE DOORS AND FRAMESManufacturers shall provide the type of the fire doors and frames assembly that has been investigated and/or successfully fire tested in accordance with the latest revision of ANSI/UL 10B, Fire Tests of Door Assemblies, ANSI/UL10C, Positive Pressure Fire Tests of Door Assemblies, or ANSI/NFPA 252, Fire Tests of Door Assemblies.6.16.4.5 PRIME FINISHDoors and frames shall be thoroughly cleaned and chemically treated to insure maximum paint adhesion. All surfaces of the door and frame exposed to view shall receive a factory applied coat of rust inhibiting primer, either air-dried or baked-on. The finish shall meet the requirements for acceptance stated in ANSI/SDI A250.10. Test Procedure and Acceptance Criteria for Prime Painted Steel Surfaces for Steel Doors and Frames.6.16.4.6FACTORY APPLIED FINISH PAINTWhen specified, doors and frames shall be finish painted on all surfaces of the door and frame exposed to view. The factory applied finish paint shall meet the performance requirements and acceptance criteria as stated in ANSI/SDI A250.3, Test Procedure and Acceptance Criteria for Factory Applied Finish Painted Steel Surfaces for Steel Doors and Frames. Consult individual manufacturers for product availability and color selection.

6.16.4.7TOLERANCESSDI-117, Manufacturing Tolerances for Standard Steel Doors and Frames shall apply to the standard steel doors and frames specified.6.16.4.8WINDOW SCREEN (LOUVER)- Corners of screen frames shall be mitered, reinforced and welded.- Frames shall be secured to window units by using clips or swivel clips to permit easy removal.- All aluminum members coming in contact with dissimilar metals and materials by the application of asphalt paint.6.16.4.9INSPECTIONWindow and louvers shall be checked for warp and weave if necessary.No work shall start until unsatisfactory conditions are corrected.6.16.4.10INSTALLATIONWindows and louvers shall be installed plumb and square without springing or forcing and securely anchored to walls.The complete installation shall be rainproof and weather tight.6.16.5 MEASUREMENT/BASIS OF PAYMENTThe accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.17 PLUMBING WORKS6.17.1 GENERAL6.17.1.1 DESCRIPTIONThis item shall consist of furnishing all materials, tool, equipment and fixtures required as shown on the plans for the satisfactory performance of the entire plumbing system including installation in accordance with the latest edition of the National Plumbing Code of the Philippines, and this specification.6.17.1.2SCOPE OF WORKUnless otherwise specified, the Contractor shall furnish all materials, tools, equipment, apparatus, appliances, accessories, transportation, labor and supervision required for the complete installation and testing of the Plumbing Systems ready for use in accordance with the best practice of the Plumbing Trade as listed herein but not limited to the following:a.The Contractor shall refer to all architectural, structural, mechanical, fire protection and electrical plans and investigate all possible interference and conditions affecting his work.

b.All work shall comply with the pertinent provision of the Plumbing Code of the Philippines, National Pollution Control Commission, Ordinances of concerned city or municipality and the Code of Sanitation of the Philippines.c.Water supply and distribution system for the building, including supply and installation of water tank and pumps piping.d.All building sanitary drains waste and venting systems including floor drains, and AC drains.e.Sewage collection and disposal system such as tapping to the existing sewage manhole or sewer line.f.Building storm drainage system including deck roof drains, canopy drains, and plant boxes drains.g. Building storm drains and collection system including peripheral collector line into storm manhole or sump pits and up to existing storm drains.h.Testing for leakage of all water supply and distribution system, drains, waste, sewer and venting system plus pressure testing and disinfection of the water supply and distribution system.i.Test run of transfer, booster and sump pumps and other equipment under Plumbing Works.j.Securing of all permits and licenses as required to include water connection.k.Excavation and backfilling in connection with the work shall be included.l.Preparation and submittal of two (2) sets of as built plans.m.Furnish of written one (1) year warranty on the plumbing system.6.17.2 MATERIAL REQUIREMENTSAll piping materials, plumbing fixtures and fitting accessories whether specifically mentioned or not but necessary to complete this item shall be furnished and installed.6.17.2.1 PRODUCTSExcept as specified, the Contractor shall submit for the Engineer's approval, four (4) copies of a complete list of manufacturer's names of all equipment and materials he proposes to use, within thirty (30) days after award of contract.The Contractor shall assume the cost of and the entire responsibility for any change in the work as shown on contract drawings which may be occasioned by approval of materials other than those specified.The following shall be the schedule for plumbing materials:a.Pipes and Fittings1.Cold Water Lines - shall be Polypropylene Random Pipe, PPR Pipe PN 16.2.Sewer line - shall be Polyvinyl Chloride (PVC) pipe, series 1000 II high Impact.3.Vent Pipe - shall be polyvinyl chloride (PVC) pipe, series 600.4.Downspouts - shall be polyvinyl chloride (PVC) pipe, series 1000 II.5.Storm Drainage Lines - shall be polyvinyl chloride (PVC) pipe, series 1000 II or reinforced concrete pipe (RCP).b.Valves1.Gate Valve fifty (50) millimeter and larger, shall be rising stem iron body with bronze trim, flanged connection, minimum of one hundred fifty (150) psig working pressure. Fifty (50) millimeter and smaller, shall be non-rising stem, all bronze, female threaded, minimum of one hundred fifty (150) psig working pressure.2.Check Valve - fifty (50) millimeter and larger shall be iron body with bronze trim, flanged connection, minimum of one hundred fifty (150) psig working pressure. Fifty (50) millimeter and smaller will be the same except female threaded connection. 3.Float Valve - shall be the float and lower type globe valve, single seated-tight closing, bronze or iron material, flanged connection, with float.c.Drains1.Roof/Deck Drain/Parapet Drain as per approved material.2.Scupper Drain (Tank Drain) as per approved material.3.Floor Drain for Toilets as per approved material4.Floor Drain for Toilets as per approved material.5.Canopy Drain as per approved material.6.Area Drain Grating Cover as per approved material.d.Hose Bibbs twenty (20) millimeter standard hose connection, male tape-red threads, polished chromium plated.e.Outdoor Pipe Lines and Appurtenances1.Concrete Drain Pipes (CDP) / Reinforced Concrete Drain Pipes (RCDP) - as per Manufacturers Standards.2.Thrust Blocks one hundred forty (140) kilogram per square centimeter reinforced concrete.3.Area-Drain-Catch Basin - one hundred forty (140) kilogram per square centimeter reinforced concrete.4.Drainage Junction Boxes - one hundred forty (140) kilogram per square centimeter reinforced concrete with pre-cast reinforced concrete cover.5.Cistern two hundred ten (210) kilogram per square centimeter reinforced concretef.Jointing1.Flanged Joint Gasket as per approved material2.Screwed Joints - U.S. Federal Specifications GG-P-251.

3.PVC Pipes and Fittings - PVC cement or as per the Manufacturers recommendations.4.Cast Iron Soil Pipes (B&S) - Oakum and lead (99% purity).5.Dissimilar Pipes - Adaptor fittings shall be used.6.Concrete Drain Pipe - Cement mortar.6.17.2.2 CAST IRON, uPVC, SOIL AND WASTE PIPES FITTINGSPipes and fitting materials shall comply with the specification requirements defined in the National Plumbing Code. The material description and standards of manufacture are herein described:a. Unplasticized Polyvinyl Chloride (uPVC). The pipe shall be made of rigid plastic which shall be sound, free from cracks and holes. The rigid plastic material shall permit drilling and cutting by using hacksaw blade without cracking or breaking.b. Quality of Plastic The plastic material shall be made of Polyvinyl Chloride which is resistant to rust and corrosion.c. Manufacture The pipes shall be made with hub and spigot ends or hub ends only. All hubs for pipes and fittings shall be made to fit with each other. Use PC solvent to connect pipes and fittings. Only plastic pipes produced by manufacturers that are costumer trusted are allowed for the project.d. Freedom from Defects Pipes and fittings shall be true, smooth and cylindrical, their inner and outer surfaces being as nearly concentric as practicable. They shall be in all aspects, sound and good casting free from laps, pin holes or other imperfections. Clean-outs shall be made of uPVC with counter sunk screw cover same diameter as the pipe except that they shall not be larger than one hundred (100) millimeter diameter.6.17.2.3 Water Supply Pipes and FittingsPipesPipes shall be galvanized iron pipe schedule forty (40) conforming to specification requirements defined in ASTM A 120 with threaded connection. Under roads where necessary pipes shall be suitably protected as shown on the plans.Fittings shall be malleable iron type II, galvanized iron conforming to specification requirements defined in ASTM 1 338.ValvesValves for water supply shall be bronze body with threaded ends rated twenty one (21) kilogram per square centimeter. All valves shall be gate valves unless otherwise specified. Gate valves shall have solid wedge body and discs conforming to specification requirements defined in ASTM B 62. Globe valves shall have plug type discs with ferrule threaded ends and bronze body.UnionsUnions on ferrous pipe fifty (50) millimeters in diameter and smaller shall be malleable iron.Water MeterWater meter where required to be furnished by the Contractor shall be of the type tested and approved by MWSS.6.17.2.3 APPROVED ALTERNATE PIPES AND FITTINGSPipes and fittings for sanitary and potable water lines as approved alternate shall be unplasticized Polyvinyl Chloride (uPVC) Pipes and Fittings.Pipes and fittings shall be made of virgin materials conforming to specification requirements defined in ASTM d 2241 and Philippine National Standards (PNS) 65: 1986. Fittings shall be molded type and designed for solvent cement joint connection for water lines and rubber O-ring seal joint for sanitary lines.6.17.2.4 SEPTIC TANKThe septic tank shall be provided as shown on the plans including all pipe vents and fittings. The various construction materials such as concrete masonry work shall conform to the corresponding items of this specification. Inlet and outlet pipes shall conform to the latest edition of the National Plumbing Code.6.17.2.5 PLUMBING AND FIXTURESAll fittings and trimmings for fixtures shall be chromium-plated and polished brass unless otherwise approved. Exposed traps and supply pipes for fixtures shall be connected to the roughing in, piping system at the wall unless otherwise indicated on the plans. Built in fixtures shall be watertight with provision of water supply and drainage outlet, fittings and trap seal. Unless otherwise specified, all plumbing fixtures shall be made of vitreous china complete with fittings.a. Water closet shall be vitreous china, free standing toilet combination, round front bottom outlet siphonic wash down bowl with extended rear self and closed coupled tank with cover complete with fittings and mounting accessories. Model make and color shall be submitted for approval prior to delivery at jobsite by the Engineer.b. Lavatory shall be vitreous china, wall-hung with near overflow and cast-in soap dishes, pocket hanger with integral china brackets, complete with twin faucets, supply pipes, P-trap and mounting accessories. Where indicated on the plans to be counter top model make and color shall be approved by the Engineer.c. Urinal shall be china vitreous, wall-hung wash-out urinal with extended shields and integral flush spreader, concealed wall-hanger pockets, nineteen (19) millimeter top spud complete with fitting and mounting accessories. Model make and color shall be approved by the Engineer.6.17.2.6 TOILET ACCESSORIESa. Grab bars shall be made of tubular stainless steel pipe provided with safety grip and mounting flange.b. Floor drains shall be made of stainless steel beehive type, measuring one hundred (100) millimeters by one hundred (100) millimeters, and provided with detachable stainless strainer, expanded metal lath type.c. Toilet paper holder shall be vitreous china wall mounted. Color shall reconcile with the adjacent fixture and facing tiles.d. Soap holder shall be vitreous china wall mounted. Color shall reconcile with the adjacent tile works.e. Faucets shall be made of stainless steel for interior use.f. Hose bib shall be made of bronze cast finish.6.17.2.7 ROOF DRAINS, DOWNSPOUT, OVERFLOW PIPES AND STEEL GRATINGThe Contractor shall provide, fit and or install necessary drains with strainers, were shown on the plans. Each drain with strainer shall fit the size of the corresponding downspout (or roof leader) over which it is to be installed and in conformity with the following schedule.a. Scupper drains (for balconies, parapet) shall be made of bronze base with flashing. Flange threaded outlet and convex with integral flashing clamp bolted to flange.b. Josam type drains shall be made of bronze base semi-dome with large free area, flashing clamp and integral gravel stopper. To be used at roof decks, canopies, gutters, and elsewhere indicated in the plans.c. Downspouts when encased in concrete, unless otherwise shown on the plans shall be polyvinyl chloride (PVC). Whether indicated or specified to be cast iron or galvanized iron, the same shall meet the specification requirements as herein described.d. Overflow pipes shall be made of galvanized iron pipe measuring at least thirteen (13) millimeter diameter and spaced two hundred (200) millimeter on center.e. Steel grating shall be made of wrought iron metals of design on shop drawings approved and surface to be coated with shop finish.6.17.2.8 FIRE PROTECTED SYSTEMFire extinguisher shall be portable, suitable for Class A, B, C fires, mounted inside cabinet. Cabinet shall be full flush mounting door with aluminum trim for glass plate; frame and box shall be made of gauge fourteen (14) galvanized iron sheets with white interior and red exterior baked enamel finish over primer. Cabinet to be wall mounted and size to be able to accommodate the defined components.6.17.3 EXECUTIONThe Contractor before any installation work is started shall carefully examine the plans and shall investigate actual structural and finishing work condition affecting all his work. Where actual condition necessitates a rearrangement of the approved pipe layout, the Contractor shall prepare plans of the proposed pipe layout for approval by the Engineer.6.17.3.1 INSTALLATION OF SOIL, WASTE, DRAIN AND VENT PIPESa. All uPVC soil and drainage pipes shall be pitched six (6) millimeter per three hundred (300) millimeter but in no case flatter than three (3) millimeter per three hundred (300) millimeter.b. Horizontal lines shall be supported by well secured length heavy strap hangers. Vertical lines shall be secured strongly by hooks to the building frame and suitable brackets or chains shall be provided at the floor from which they start.c. All main vertical soil and waste stacks shall be extended full size to and above the roof line to act as vents, except otherwise indicated on the plans.d. Vent pipes in roof spaces shall be run as close as possible to underside of roof with horizontal piping pitched down to stacks without forming traps. Vertical vent pipes may be connected into one main vent riser above the highest vented fixtures.e. Where and end or circuit vent pipe from any fixtures is connected to a vent line serving other fixtures, the connections shall be at least one and two tenths (1.2) meter above the floor on which the fixtures are located.f. Horizontal waste line receiving the discharge from two or more fixtures shall be provided with end vents unless separate venting of fixtures is noted on the plans.g. All changes in pipe sizes on soil and waste lines shall be made by appropriate use of forty five (45) degrees wyes; half wyes, long sweep quarter bends or elbows may be used in soil and waste lines where the change in direction of flow is from the horizontal to the vertical and on the discharge from waste closets. Where it becomes necessary to use short radius fittings in other locations, the approval of the Engineer shall be obtained prior to installation of the same.h. All joints fully applied with PVC solvent to secure connectionsi. Cleanouts at the bottom of each soil stack, waste stack, interior downspout and where else indicated shall be the same size as the same pipe up to and including one hundred two (102) millimeter and one hundred fifty two (152) millimeter, for larger pipes.j. Vent pipe shall be flashed and made watertight at the roof with ferrule lead sheet. Flashing shall be turned down into pipes.k. Each fixtures and place of equipment requiring connection to the drainage system except near to the fixture as possible.l. Trap installed on threaded pipe shall be recessed drainage pattern.m. Overhead horizontal runs of pipes shall be hung with approved material spaced not over three and four hundredths (3.04) meter apart except hub and spigot soil which shall have hanger spaced not over one and five tenths (1.5) meter apart and located near a hub.6.17.3.2 WATER PIPES, FITTINGS AND CONNECTIONSAll water piping inside the building and underground, one hundred (100) millimeter diameter and smaller shall be galvanized iron threaded pipe with malleable iron fittings.a. The water piping shall be extended to all fixtures, outlets, and equipment from the gate valves installed in the branch near the riser.b. The cold water system shall be installed with a fall towards a main shutoff valve and drain. Ends of pipes and outlets shall be capped or plugged and left ready for future connections.

c. Mains and Branches - All pipes shall be cut accurately to measurements and shall be worked into place without springing or forcing. Care shall be taken so as not to weaken the structural portions of the building.- All piping above the ground shall be run parallel with lines of the building unless otherwise indicated in the Plans.-All service pipes, valves and fittings shall be kept at sufficient distance from other work to permit finished covering on the different service.- No water piping shall be buried in floors, unless specifically indicated on the Plans and approved by the Engineer.-Changes in pipes shall be made with reducing fittings.d. Drain Cocks Pipe drain indicated on the drawings shall consist of twelve (12) millimeters globe valve wit renewable disc and installed at low points on the cold water piping so that all piping shall have a slope ten (10) meters in thirty and five tenths (30.5) meters.e. Threaded Pipe Joints All pipes shall be reamed before threading. All screw joints shall be made with graphite and oil or with an approved graphite compound applied to make threads only. Threads shall be full cut and not more than three threads on the pipe shall remain exposed.f. Expansion and Contraction of Pipes Accessible contraction-expansion joints shall be made whenever necessary. Horizontal runs of pipe over fifteen (15) meters in length shall be anchored to the wall to the contraction equally toward the ends of as shown on the Plans.g. Valves and Hose Bibs- Valves shall be provided on all supplied fixture as herein specified.- The cold water connections to the domestics hot water heater shall be provided with gate valves and the return circulation connection shall be provided gate and check valve.- All connection to domestic hot water heaters shall be equipped with unions between valve and tanks.- Valve shall not be installed with its stem below the horizontal. All valves shall be gate valves unless otherwise indicated on the Plans.- Valves up to and including fifty (50) millimeters diameter shall be threaded ends, rough bodies and finished trimmings, except those on chromium plated brass pipe.- Valves sixty three (63) millimeters in diameter and larger shall have iron bodies, brass mounted and shall have either screws of flange ends.- Hose bibs shall be made of brass with twelve and five tenths (12.5) millimeters inlet threads, hexagon shoulders and nineteen (19) millimeters male.6.17.3.3 FIXTURES, EQUIPMENT AND FASTENINGSa. All fixtures and equipment shall be supported and fastened in a safe and satisfactory workmanship as practiced.b. All fixtures, where required to be wall mounted on concrete or concrete hollow block wall, fastened with brass expansion bolts. Expansion bolts shall be six (6) millimeters diameter with twenty (20) millimeters threads to twenty five (25) millimeters into solid concrete, fitted with loose tubing or sleeves of proper length to acquire extreme rigidity.c. Insert shall be securely anchored and properly flushed into walls. Inserts shall be concealed and rigid.d. Bolts and nuts shall be horizontal and exposed. It shall be provided with washers and chromium plate finish.6.17.3.4 PIPE HANGERS, INSERTS AND SUPPORTSa. Pipe hangers shall be made of approved materials spaced not more than three (3) meters apart for horizontal runs or pipe, except hub and spigot soil pipe which shall have hangers spaced not over one and five tenths (1.5) meters apart located near the hub.b. Chains, straps perforated turn-buckles may be omitted for hangers on soil or waste lines or individual toilet rooms to maintain stacks when spaced does not permit.c. Trapeze hangers may be used in lieu of separate hangers on pipe running parallel to and close to each other.6.17.3.5 PROTECTION AND CLEANINGa.During installation of fixtures and accessories and until final acceptance, protect items with strippable plastic or other approved means to maintain fixtures in perfect conditions.b. All exposed metal surfaces shall be polished clean and rigid of grease, dirt or other foreign materials upon completion.c. Upon completion, thoroughly clean all fixtures and accessories to leave the work in polished condition.6.17.3.6 INSPECTION, WARANTY TEST AND DISINFECTIONAll pipes, fittings, traps, fixtures, straps, appurtenances and equipment of the plumbing and drainage system shall be inspected and approved by the Engineer to insure compliance with all requirements of all codes and regulations referred to in this specification.6.17.3.6.1 DRAINAGE SYSTEM TESTa. The entire drainage and venting system shall have all necessary openings which can be plugged to permit the entire system to be filled with water to the level of the highest stack vent above the roof.b. The system shall hold this water for full thirty (30) minutes during which time there shall be so drop greater than one hundred two (102) millimeterc. Where only portion of the system is to be tested, the test shall be conducted in the same manner as described for the entire system except that a vertical stack three (3) meters highest horizontal line to be tested may be installed and filled with water to maintain sufficient pressure of water pump may be used to supply the required pressure.d. If and when the Engineer decides that an additional test is needed, such as an air to smoke test on the drainage system, the Contractor shall perform such test without any additional cost.6.17.3.6.2 WATER TEST ON SYSTEMa. Upon completion of the roughing-in and before connecting fixtures the entire cold water piping system shall be tested at a hydrostatic pressure one and one half (1 ) times the expected working pressure in the system during operation and remained tight and leak-proofed.b. Where piping system is to be concealed, the piping system shall be separated in a similar manner to that described for the entire system with the presence of the Engineer or his duly designated representative.6.17.3.6.3 DEFECTIVE WORKa. All defective materials replaced and tested will be repeated until satisfactory performance is attainedb. Any material replaced for the satisfactory performance of the system made shall be at the expense of the Contractor.6.17.3.6.4 DISINFECTIONa. The entire water distribution system shall be thoroughly flushed and treated with chloride before it is operated for public use.b. Disinfection materials shall be liquid chlorine of hypochlorite and shall be introduced in a manner approved as practiced by the Engineer into the water distribution system.c. After a contact period of not less than sixteen hours, the heavenly chlorinated water shall be flushed from the system with potable water.d. Valves for the water distribution system shall be opened and close several times during the sixteen (16) hours chlorination treatment is done.6.17.3.7 SUBSTITUTIONSMaterials intended to be substituted for those originally specified shall be accepted only after a formal request for substitution, accompanied by reason for substitutions in writing. Upon completion of the work, the Contractor shall submit two sets of prints with all as-built changes shown on the drawings in a neat workmanship manner. Such prints shall show changes or actual installation and conditions of the plumbing system in comparison with the original drawings.6.17.3.8 MISCELLANEOUS6.17.3.8.1 CLEANOUTSCleanout shall be of the same size as the pipe, the location of which is extended to an easily accessible place.6.17.3.8.2 TRAPSEvery plumbing fixtures or equipment requiring connection to the drainage system shall be equipped with a trap.Each trap shall be placed as near as possible to the fixture. No fixture shall be double-trapped.6.17.3.8.3VALVES AND HOSE BIBSValves shall be provided on all water supplies to fixture as specified.Hose bibs shall be made of brass with fifteen (15) millimeter male inlet threads hexagon shoulders and twenty (20) millimeter connections.6.17.3.8.4 HANGERS AND SUPPORTSHorizontal runs of pipe shall be hung with adjustable wrought iron or malleable iron pipe hangers spaced not over three (3) meters apart, except hub and spigot soil pipes which shall have hangers spaced not over one and fifty two hundredths (1.52) meters apart and located near the hub.Hangers shall have short turnbuckles or other approved means of adjustment.Inserts shall be of cast steel and shall be of type to receive a machine bolt or nut after installation.Vertical runs of pipe shall be supported by wrought iron clamps, or collars spaced not more than nine (9) meters apart.Water and Vent Pipe sixty five (65) millimeter and larger; band type six and four tenths (6.4) millimeter by twenty five (25) millimeter flat mild steel or black iron with 15mm round rod with plates and nuts; fifty (50) millimeter and smaller split ring type with ten (10) millimeter iron rods with inserts plates; toggle bolts, clamps or expansion shield.6.17.3.8.5 PIPE SLEEVESPipe sleeves shall be installed and properly secured in place at all points where pipes pass through masonry or concrete.Pipe sleeves shall be of sufficient diameter to provide approximately six and four tenths (6.4) millimeter clearance around the pipe or insulation.Pipe sleeves in walls and partitions shall be of cast iron, wrought iron or steel pipe. Pipe sleeves in concrete beams or concrete slabs shall be wrought iron or steel pipe.Where pipes pass through waterproofing membrane, the sleeves shall be provided with an integral flange or clamping device to which a flashing shield can be soldered.The space between the pipes and sleeves shall be made water tight by inserting a packed oakum gasket and filling the remaining space with poured lead caulking thoroughly6.17.4 MEASUREMENT/BASIS OF PAYMENTThe work done under this item shall be quantified per length and/or number of units as provided in the Bill of Quantities, tested and accepted to the satisfaction of the Engineer.The accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.18 VENTILATION AND AIR CONDITIONING6.18.1 GENERAL6.18.1.1 DESCRIPTIONThe work to be undertaken under this item shall consist of furnishing of all materials, labor, equipment, and other facilities necessary for the complete installation, testing and operation of the Ventilation and Air Conditioning Units. The system shall include the following:a. Ventilating system of the machine hall and high voltage room, providing adequate air circulation of the entire system- Four (4) units of Air Exhaust Fans rated one (1) horsepower each.- Two (2) units of Air Exhaust Fans rated five tenths (0.5) horsepower each.b. Control Room Air-Conditioning System- Two (2) units of Split Type Air-Conditioning units rated at two (2) horsepower and with a capacity of one and five tenths (1.5) tons each. The units shall be CARRIER or approved equal.c. Any other work required for the complete operation of the ventilation and air conditioning system.6.18.1.2 GENERAL REQUIREMENTSa. Material and equipment furnished under this specifications shall be standard products of manufacturers regularly engaged in the production of such materials or equipment and shall be manufacturers latest standard design.b. Defective equipment of fixtures, or equipment of fixtures damaged in the course of installation or testing shall be replaced or repaired by the Contractor in the manner approved by the Engineer.c. If departures from the contract drawings are deemed necessary by the Contractor, details of such departures, including charges in related portions of the work, and the reasons therefore shall be submitted, as soon as practicable after contract award, to the Engineer for written approval. Approved departure shall be made at no additional cost to the Employer.6.18.2 SUBMITTALSa. Before starting installation, the Contractor shall submit to the Engineer for approval, layout drawings and lists of materials, fixtures and equipment to be incorporated in the work. The list of materials and equipment shall be supported by sufficient descriptive materials, such as catalogs, cuts, diagrams and other data published by the manufacturer to demonstrate conformance to the specification requirements.b. Sampling shall be the responsibility of the Contractor. If a sample fails to meet specification requirements, the material or equipment represented by the sample shall be replaced by the Contractor at no additional cost to the Employer.c. The employer shall be provided with three (3) bound copies AS BUILT diagrams, shop drawings, part list, serial number and inventory equipment including manufacturers operating and maintenance manual for the Employers future reference. All standard tools and equipment shall be furnished for proper and regular maintenance of installed equipment.6.18.3 MATERIAL REQUIREMENTSMaterials, fixtures and equipment shall conform to the respective publications and requirements specified herein. Fixtures and equipment differing in minor respects from the specified may be proposed provided such differences are clearly indicated on the data submitted for approval. If the Engineer judges the products to be equal to or better than the specified, the product will be considered; and if based on a technical evaluation, the Engineer judges the difference to be minor, he may approve the use to the project.6.18.3.1 PRODUCT DELIVERY, STORAGE AND HANDLINGa. Delivery materials in original unopened, protective packaging with manufacturers labels legibly and intact.b. Store materials and equipment under cover, off the floor to prevent rust and damagec. Complete delivery of materials prior to installationd. Handle materials carefully to prevent damage.6.18.3.2 QUALITY ASSURANCEa. Inspection and TestTest for the ventilation and air-conditioning system shall be conducted by the Contractor and approved by the Engineer before acceptance. Equipment required for the tests shall be furnished by the Contractor without additional cost to the Employer.b. If an inspection or tests show defects, such defective work or aerials shall be replaced, and inspection and test shall be repeated. Retests shall be made by the Contractor when directed by the Engineer, with no additional cost to the Employer.c. At the completion of the work, all parts of the installation, including all equipment, shall be thoroughly cleaned. Any stoppage, discoloration or other damage to parts of the building, the finishing due to the Contractors failure shall be repaired by the Contractor without cost to the Employer.6.18.3.3 MATERIALS, FIXTURES AND EQUIPMENTa. Exhaust Fans and Air Conditioning Units. The materials and equipment furnished shall be made of well proven high quality standards designed to provide continuous service. The product shall be the manufacturers latest standard design.b. Exhaust Fans Design Requirements- Contractor shall evaluate materials and select the most appropriate materials for this service.- Fan to be constructed and tested in accordance with AMCA standards.- Fan bearings shall be visible and accessible for inspection and maintenance. Bearing life shall have a minimum of twenty thousand (20,000) hours.- The fan and motor shall be designed for static pressure capability of the specified pressure drop.- The sound levels generated by the furnished equipment during normal operation shall not exceed eighty five (85) dBA-weighted, slow responses, under field condition at a horizontal distance of 10 feet from, the surface of sound generation.- Contractor shall provide electric motor and driver for each unit, and shall be responsible for the selection of the motor characteristics and the motor mounting.- Specially designed shafts seals shall be provided with the fan assuring no internal air stream to be in contact with the fan shaft.- An inspection port shall be provided with the fan housing to allow for impeller inspection- Fan impeller wheels shall be a minimum of Class II.6.18.4 EXECUTIONInstallation shall be in strict accordance with manufacturers instructions and with accepted practices for good workmanship. Unloading, moving and erection of equipment shall be under direct supervision of a competent and experienced erecting engineer. The Contractor shall provide all labor, tools, equipment, etc., for erection and installation of the equipment.6.18.5 MEASUREMENT/BASIS OF PAYMENTThe work done under this item shall be quantified per length and/or number of units as provided in the Bill of Quantities, tested and accepted to the satisfaction of the Engineer.The accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.19 TILE WORKS6.19.1 GENERAL6.19.1.1 DESCRIPTIONThis item shall consist of furnishing and installation of floor tile on specified location. Installation method will be strictly followed as per standard.6.19.2 MATERIAL REQUIREMENTSFloor tiles shall be required ceramic type conforming to requirements of ASTM C499 09. Individual tiles shall conform to ASTM F 2055 00 Standard Test Method for Size and Squareness of Floor Tile. Substitution will be made as per Engineers approval.Three hundred (300) millimeters by three hundred (300) millimeters by twelve (12) millimeters Ceramic tiles non slip matte finish, bedding in mortar (1:3) on render and cement toppings.6.19.3EXECUTION6.19.3.1 PREPARATIONPrior to commencing the installation, the Contractor shall examine the areas to be covered and advice the Engineer of any existing conditions or surface contamination which will require correction before the work commences. 6.19.3.2 SURFACE PREPARATIONSurface to be covered shall be cleaned to remove soil, dust, curing compounds, form oil, sealants, or grease. Cleaning shall be by means of high-pressure Hydro-blasting, Sand/grit blasting or "mechanical scabbling." Surface to be waterproofed or tiled shall be plumb and true within three (3) millimeters in three (3) meters and shall have a steel trowel finish. Out-of-plumb, rough or uneven masonry, concrete or mortar bed surfaces should be rendered and made smooth to provide a wood float quality finish. Dry or dusty concrete surfaces shall be washed and excess water removed before the application of the mortar render or screed which shall be applied as a wet, workable render and finished to a wood float finish. Installations may be made on a damp surface.6.19.3.3 INSTALLATION OF MORTARSUse appropriate installation mortars according to ANSI A118-1999 series or A136.1-19996.19.3.4 INSTALLATION OF TILES1.Install tile in pattern indicated. Align joints when adjoining tiles on floor, base, walls, and trim are same size. Adjust to minimize tile cutting and to avoid tile less than half size. 2.When possible, smooth cut edges of tile and/or use appropriate cutter or wet saw to produce smooth cuts. Provide straight cuts which align with adjacent materials. 3.Extend tile into recesses and under equipment and fixtures to form a complete covering without interruption. 4.Terminate tile neatly at obstructions, edges, and corners, without disruption of pattern or joint alignment. 5.Provide tile joints uniform in width, subject to variance in tolerance allowed in tile size. Make joints smooth and even, without voids, cracks, or excess mortar or grout. 6.Mix mortar in strict accordance with manufacturer's recommendations.7.Apply setting material in accordance with manufacturer's directions and install tile before mortar has started initial cure. For thin set mortar application, use a notch trowel that will achieve the recommended coverage of mortar after tiles have been installed. Reference standard coverage information and follow manufacturer's recommendations for trowel size when using mortar. 8.Do not spread more material than can be covered within ten (10) to fifteen (15) minutes. If "skinning" occurs, remove mortar and spread fresh material. Spread mortar with notches running in one direction that shall be perpendicular to the pressing, pushing and pulling of tile during placement. 9.Place tile in fresh mortar, press, push and pull the tile slightly to achieve as near one hundred (100) percent coverage and contact of tile with setting material and substrate as possible. The coverage shall be no less than eighty five (85) percent and be sufficiently distributed to give full support of the tile. Make sure that all corners and edges are well supported with mortar. Leave no hollow corners or edges. Note: 95-100% coverage is mandatory for wet or exterior areas. A skim coat (back-butter) of mortar can be placed onto the entire back of the tile using a trowel in order to assist in optimum adhesion and coverage of the mortar being used. 10.Ensure there is a minimum 1/8 inch of mortar between tile and substrate after proper bedding. Installer must periodically remove sheets or individual tiles to assure proper bond coverage consistent with industry specifications. If coverage is found to be insufficient, use a larger size notch trowel. 11.Use a beating block and hammer or rubber mallet so that faces and edges of individual tiles are flush and level with faces and edges of adjacent tiles, and to reduce lippage.6.19.3.5 GROUTING1.Install grout in accordance with ANSI A108.10, A108.6, A108.8, A108.9- 1999 correlating to grout type chosen and manufacturers recommendations. 2.Mix grout material in strict accordance with manufacturer's directions. 3.Apply grout to produce full, smooth grout joints of uniform width, and free of voids and gaps. 4.Before grouting entire area do a test area to assure there will be no permanent staining or discoloration of the tile and to verify that the grout is easily removed from the surface. If necessary, pre-coat exposed surfaces of tile with a grout release as recommended by the manufacturer, as this will facilitate removal of the grout. 5.Cure all setting and grouting materials in accordance with manufacturer's recommendations.6.19.3.6 CLEANING AND PROTECTION1. If one has been used, remove grout release and clean tile surfaces so they are free of grout residue and foreign matter, in accordance with manufacturer's instructions. If a grout haze or residue remains, use a suitable grout haze remover or cleaner and contact grout manufacturer for recommendations. Flush surface with clean water before and after cleaning. Do not use harsh hydrochloric, muriatic or sulfuric acid or acid-based cleaners to clean glazed tiles or tiles grouted with latex modified grout. 2. When a heavy residue of Portland cement grout is present, acceptable tile cleaning acids may be used. However, the grout should be allowed to cure a minimum of ten (10) days before this aggressive cleaning method is employed. Tile and grout shall be soaked with water before cleaning. In the absence of a recommendation from the grout manufacturer, acid cleaning may be done with a saturated solution of phosphoric or sulfuric acid, mixed in accordance with manufacturer's recommendations. 3. After cleaning, provide protective covering and maintain conditions to protect tile work from damage or deterioration. Where tiled surfaces will be subject to equipment or wheel traffic or heavy construction traffic, and during move-in of furniture and equipment, cover protective covering with one fourth (1/4) inch hardboard, plywood or similar material. 4. Leave finished installation clean and free of cracked, chipped, broken, unbonded, and otherwise defective tile work. 5. Consult most current Crossville Brochure "How to Care for Porcelain Tile" for information on post installation cleanup and routine maintenance6.19.4 MEASUREMENT/BASIS OF PAYMENTMeasurement shall be per square meter for all properly installed. Whenever the Bill of Quantities does not include an item for floor tiles, this work will not be paid directly but, shall be considered as subsidiary obligation of the Contractor under other contract item.The accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.20 PAINTING WORKS6.20.1 GENERAL6.20.1.1 DESCRIPTIONThe work shall consist of furnishing all labor, materials and equipment required for the complete execution of all painting work specified herein or as inferred by the Engineer.6.20.1.2 SCOPE OF WORKa. Furnish all material, labor and equipment to perform all operations connected to field painting.b. Inspect and prepare all surface for painting in accordance with the surface preparation required for the following materials: - Wood Surfaces shall be clean and free of dust and oil. Surfaces shall be dry. - Concrete Free of dirt, loose particles, fungus, oils or grease and efflorescence. - Plastered Cleaning by removing mill scales, rust, oils, or grease. Galvanized surfaces shall be cleaned or primed with Benzene or Acetic acid or any approved solution. Wash with water and dry.6.20.2 SUBMITTALSSubmit all paints, lacquer, thinners or oil stains to be used in their original containers for approval. Containers shall have the manufacturers name and trade mark for the product submitted.6.20.3 MATERIAL REQUIREMENTSa. Paint shall be any one of the following popular brands. Dutch Boy, Boysen or Sherwin Williams.b. Primers, thinners or tinting colors shall be a type and brand compatible with the main paint ingredient.c. Paint finishes shall be flat, gloss or semi-gloss as per schedule or as indicated.6.20.3.1 QUALITY ASSURANCEa. Workmanships shall be first class in every aspects. Painting paraphernalia shall be relatively new.b.Allow sufficient time to dry preceding coat before the next coat is applied. Use lighter shade of color for each coat shall be adopted for coat identification.c.The finish color and type of paint to be used for the surface shall be in accordance with the approved color scheme.6.20.3.2 PROTECTIONa. Protect all hardware not to be painted by either covering with masking tape or complete removal from attachment. Reinstallation of items is included in this work when the latter method of protection is adopted.b. Provide protection of all other surface areas, which may be affected by this operation. Provision of safe scaffoldings for workmen shall be included.6.20.4 EXECUTION6.20.4.1 PAINT APPLICATIONa. Accomplish all surface preparation in accordance with accepted painting procedure.b. Mix thoroughly the type of paint to be used to an even and workable consistency. This may be done by manual or mechanical stirring.c. Apply the first coat with brush taking special care to prevent paint droppings or runs.d. Allow sufficient time for the first coat to dry. Where primed surface require putty application, spot-putty surface imperfections. After putty has dried sufficiently smooth out puttied portions by standing. Wipe clean sanded portions with clean rags before the second coat of paint is applied.6.20.4.2 SURFACE FINISHESThe following finishing schedule for field painting shall be followed.SurfaceTreatment

Exterior concrete and CHB WallsOne coat primer sealer. One coat exterior acrylic latex concrete paint

Shop primed exterior Metal Surface includingGalvanized surfacesOne coat of zinc chromatic primer. Two coat exterior enamel

Exterior metal surfaces(Net shop primed)Two coats zinc chromatic primer paint. Two coat exterior enamel

Interior concrete and CHB WallsOne coat interior primer sealer.One coat interior enamel

Interior wood surfaces:a) Pigmented Finishb. Natural or Stainc) PlywoodOne coat undercoat. One coat oil (Except plywood) paint enamel.One coat of stain (if required) Three finish except plywood coats sprayed lacquerOne coat varnish type sealer primer and finish coats to be the same as in(a) above for pigmented finish(b) and above for natural finish

Shop primed interior metalTouch up shop coat. One coat surface interior enamel undercoatOne coat of interior enamel paint.

Interior metal surfaces, not shop primedOne coat zinc chromate primer paint.One immediate coat enamel undercoat. One finish coat of interior enamel paint.

Metal surfaces inaccessible after erectionShop coat of epoxy primer coat in shop sand blast surface to white metal. Apply prime coat with brush. Succeeding coat may be applied by spray. Follow manufacturers instruction in mixing epoxy.

Metal Piping, FittingsPaint to match adjacent surfaces. Primer to be zinc chromatic enamel.

Galvanized metal surfacesApply roofing paint of approved color after surface treatment is done.First coat to a lighter shade than the finish coat.

6.20.4.3 STORAGE AND HANDLINGa. All painting materials shall be stored in a dry and covered location approved by the Engineer.b. A No Smoking sign shall be visibly posted and enforced in the storage area and at locations where paint mixing is to be done.6.20.4.4 PAINTED SURFACE PROTECTIONa. All painted surfaces shall be protected from damage. Repair noted defects before final acceptance by the Engineer.b. After painting operations is included in this work.6.20.5 MEASUREMENT/BASIS OF PAYMENTThe accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.21 CEILING FOR OFFICE AND COMFORT ROOM6.21.1 GENERAL6.21.1.1 DESCRIPTIONWorks in this item include labor, material, equipment and tools required in conjunction with the furnishing and installation ceiling system.6.21.2 MATERIALSAll materials and works shall conform to the provisions of the latest edition of the ASTM, PNS, National Building Code of the Philippines and other applicable standards both local and international.6.21.2.1 QUALITY ASSURANCECeiling works shall be performed by an experienced installer with a relative experience with plywood ceiling type of construction.6.21.2.2 PRODUCT DELIVERY, STORAGE, AND HANDLINGDeliver materials in manufacturers original unopened packages with contents fully identified. Handle and store in accordance with manufacturers instructions and recommendations.6.21.3 EXECUTIONThe ceiling grid must examine the job site and conditions under which the suspended ceiling work is to be performed, and notify the Engineer in a timely manner of any unsatisfactory conditions.6.21.3.1 JOB CONDITIONSDo not install materials until the following conditions are met: interior spaces have been enclosed and are weather-tight; work above ceilings has been completed.6.21.3.2 PREPARATIONCeiling grid installer shall meet at the project site with the Engineer prior to commencement of installation.1. Review areas of potential interference and resolve conflicts before proceeding with the project.2. Coordinate the work with the layout of other work that penetrates the ceiling.3. Refer to the approved reflected ceiling plan for ceiling layout.6.21.3.3 INSALLATIONa. Install the ceiling in accordance with the manufacturers printed installation guide.b.A laser-leveling device must be used to level ceiling. Hanging wire must be straight or pre-straightened prior to use.c. Call light fixtures, equipment, air duct diffusers, filters, or ceiling penetrations must be independently hung/supported.6.21.4 MEASUREMENT/BASIS OF PAYMENTThe accepted quantities, measured as prescribed above shall be paid for at the contract unit price for each of the particular pay items listed and included in the Bill of Quantities. The payment shall constitute full compensation for the installed materials including all labor, equipment, tools and incidentals necessary to complete the work prescribed in this item.

ITEM 6.22 FIRE PROTECTION SYSTEM6.22.1 GENERAL6.22.1.1 DESCRIPTIONThis item includes the furnishing, installation, and connection of the fire alarm equipment to form a complete coordinated system ready for operation.