concrete specifications. below grade block-work general general the following is a typical...

Concrete Specifications

BELOW GRADE BLOCK-WORKBELOW GRADE BLOCK-WORK


GENERALGENERAL The following is a typical specification for The following is a typical specification for

Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings Membrane when applied as a new membrane Membrane when applied as a new membrane to concrete block work as the waterproofing to concrete block work as the waterproofing medium in below grade applications. Each medium in below grade applications. Each project will have special conditions and these project will have special conditions and these should be identified and addressed additional should be identified and addressed additional to this specification. If in doubt, seek the to this specification. If in doubt, seek the advice of Liquid Rubber Engineered Coatings , advice of Liquid Rubber Engineered Coatings , before proceeding. before proceeding.


QUALITY ASSURANCEQUALITY ASSURANCE The Liquid Rubber Engineered Coatings The Liquid Rubber Engineered Coatings

Membrane may only be applied by a Membrane may only be applied by a qualified licensed Liquid Rubber Engineered qualified licensed Liquid Rubber Engineered Coatings Applicator. A pre-installation Coatings Applicator. A pre-installation conference, to include at least the conference, to include at least the contractor, Applicator and architect/engineer contractor, Applicator and architect/engineer should be held prior to application to ensure should be held prior to application to ensure proper substrate and conditions. proper substrate and conditions.


INSPECTIONINSPECTION Prior to commencement of work, a thorough Prior to commencement of work, a thorough

inspection of the block surface should be carried inspection of the block surface should be carried out to determine or confirm the following: All out to determine or confirm the following: All mortar joints to be flush with block-work. All mortar joints to be flush with block-work. All voids to be filled with sand/cement mixture. voids to be filled with sand/cement mixture. Complete exposure of all block-work surfaces to Complete exposure of all block-work surfaces to allow the application of the Liquid Rubber allow the application of the Liquid Rubber Engineered Coatings Membrane to the extent Engineered Coatings Membrane to the extent shown on the drawingsshown on the drawings..

BELOW GRADE BLOCK-WORKBELOW GRADE BLOCK-WORK Soundness and correctness of penetrations in Soundness and correctness of penetrations in

the block-work. Dual penetrations are to be a the block-work. Dual penetrations are to be a minimum of 50 mm apart and a minimum of minimum of 50 mm apart and a minimum of 50 mm from the base. Penetrations are to be 50 mm from the base. Penetrations are to be grouted in flush to block-work and free of grouted in flush to block-work and free of voids. Sufficient working area to apply voids. Sufficient working area to apply membrane (minimum 600 mm). membrane (minimum 600 mm). Note: Note: Allow Allow block-work to be waterproofed to cure for a block-work to be waterproofed to cure for a minimum of 24 hours. If block-work is filled minimum of 24 hours. If block-work is filled with concrete, allow an additional (minimum) with concrete, allow an additional (minimum) period of 24 hours prior to application of period of 24 hours prior to application of Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings Membrane Membrane


PREPARATION PREPARATION The Liquid Rubber Engineered Coatings The Liquid Rubber Engineered Coatings

Membrane must be installed on a clean, Membrane must be installed on a clean, noticeably dry and structurally sound surface, noticeably dry and structurally sound surface, free of sharp edges, loose or foreign material, free of sharp edges, loose or foreign material, dirt, oil, grease or other materials or debris dirt, oil, grease or other materials or debris that may damage the Liquid Rubber that may damage the Liquid Rubber Engineered Coatings Membrane. Fully expose Engineered Coatings Membrane. Fully expose a minimum of 50 mm clear area of footing at a minimum of 50 mm clear area of footing at the base of block-work. Sweep any sand, dirt the base of block-work. Sweep any sand, dirt or other debris from the block-work and or other debris from the block-work and Application Guidelines base to allow Application Guidelines base to allow installation of Liquid Rubber Engineered installation of Liquid Rubber Engineered Coatings Membrane. Coatings Membrane.


Fill all void spaces and remove excess Fill all void spaces and remove excess mortar to provide an uninterrupted block-mortar to provide an uninterrupted block-work finish. Install 20 mm x 20 mm fillets work finish. Install 20 mm x 20 mm fillets to all 90-degree up-turns. to all 90-degree up-turns.

Mask all areas as needed for protection Mask all areas as needed for protection from over-spray. Mask terminations to a from over-spray. Mask terminations to a straight line. straight line.


APPLICATION APPLICATION The Liquid Rubber Engineered Coatings The Liquid Rubber Engineered Coatings

Membrane for this application is to be Membrane for this application is to be applied to a minimum thickness of 2 mm. applied to a minimum thickness of 2 mm.

Begin spraying from the lowest point of Begin spraying from the lowest point of block work to the required height in slow block work to the required height in slow even strokes. Spray a thickening of material even strokes. Spray a thickening of material (twice the system thickness) to all (twice the system thickness) to all expansion and construction joints as well as expansion and construction joints as well as 90-degree transitions in block work. This 90-degree transitions in block work. This thickening should extend 150 mm on either thickening should extend 150 mm on either side of corners. side of corners.


Check Liquid Rubber Engineered Coatings Check Liquid Rubber Engineered Coatings Membrane for correct thickness in a grid Membrane for correct thickness in a grid pattern every 10 m2. Following completion pattern every 10 m2. Following completion of application and Inspection & Test Plan of application and Inspection & Test Plan checks Liquid Rubber Engineered Coatings checks Liquid Rubber Engineered Coatings recommends the minimum installation of a recommends the minimum installation of a protective geo-fabric (A12) with selected protective geo-fabric (A12) with selected back-fill. Non selected back-fill requires an back-fill. Non selected back-fill requires an A34 geo-fabric or protection board at A34 geo-fabric or protection board at additional cost. additional cost.

CONCRETE DECKINGCONCRETE DECKING


GENERAL GENERAL The following is a typical specification for The following is a typical specification for

the Liquid Rubber Engineered Coatings the Liquid Rubber Engineered Coatings Membrane when applied as a coating or new Membrane when applied as a coating or new membrane to concrete decks. Each project membrane to concrete decks. Each project will have special conditions and these should will have special conditions and these should be identified and addressed additional to be identified and addressed additional to this specification. If in doubt, seek the this specification. If in doubt, seek the advice of Liquid Rubber Engineered Coatings advice of Liquid Rubber Engineered Coatings before proceeding. before proceeding.



Membrane may only be applied by a Membrane may only be applied by a qualified licensed Liquid Rubber Engineered qualified licensed Liquid Rubber Engineered Coatings , Applicator. A pre-installation Coatings , Applicator. A pre-installation conference, to include at least the conference, to include at least the contractor, Applicator and architect/engineer contractor, Applicator and architect/engineer should be held prior to application to ensure should be held prior to application to ensure proper substrate and conditions. proper substrate and conditions.


INSPECTION INSPECTION Prior to commencement of work, a thorough Prior to commencement of work, a thorough

inspection of the substrate should be carried inspection of the substrate should be carried out to determine or confirm the following: out to determine or confirm the following: Particularly in the case of new construction, Particularly in the case of new construction, determine whether curing or parting determine whether curing or parting compounds or hardeners were used and, if compounds or hardeners were used and, if so, the specific compounds used. Non-oil so, the specific compounds used. Non-oil based compounds are generally compatible based compounds are generally compatible with and are preferred. However, oil based with and are preferred. However, oil based compounds do not present a problem if the compounds do not present a problem if the surface is properly prepared surface is properly prepared

BEFORE


The presence of laitance on the deck The presence of laitance on the deck surface. surface.

The presence of moisture in the deck. The presence of moisture in the deck. The presence of large irregularities, such as The presence of large irregularities, such as

cracks, voids, bug holes, or large gaps. cracks, voids, bug holes, or large gaps. Correct sloping, and effective integration of Correct sloping, and effective integration of the deck drainage system. the deck drainage system.

Soundness and proper detailing of roof Soundness and proper detailing of roof mounted supports, penetrations, flashing, mounted supports, penetrations, flashing, outlets, turn-ups, sumps, and all other items outlets, turn-ups, sumps, and all other items that are to be part of the new, completed that are to be part of the new, completed deck area. deck area.


The soundness of the existing top The soundness of the existing top coat, if the deck has been coated, to coat, if the deck has been coated, to the existing deck, and the the existing deck, and the compatibility of the coating and the compatibility of the coating and the Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings Membrane should be determined by Membrane should be determined by spraying a small test area.spraying a small test area.

CONCRETE DECKINGCONCRETE DECKING PREPARATIONPREPARATION The Liquid Rubber Engineered Coatings The Liquid Rubber Engineered Coatings

Membrane must be installed on a clean, dry Membrane must be installed on a clean, dry and structurally sound surface, free of sharp and structurally sound surface, free of sharp edges, loose or foreign material, dirt, oil, edges, loose or foreign material, dirt, oil, grease or other materials or debris that may grease or other materials or debris that may damage the Liquid Rubber Engineered damage the Liquid Rubber Engineered Coatings Membrane.Coatings Membrane.

Power wash or otherwise clean the deck, as Power wash or otherwise clean the deck, as necessary, including high pressure water necessary, including high pressure water blast to remove residual curing or parting blast to remove residual curing or parting compounds, hardeners, laitance or loose compounds, hardeners, laitance or loose and flaking paint. High-pressure water blast and flaking paint. High-pressure water blast will generally eliminate any problems will generally eliminate any problems associated with such compounds. associated with such compounds.


Allow deck to dry until free of surface Allow deck to dry until free of surface moisture and, if possible, free from retained moisture and, if possible, free from retained moisture. Some blistering may occur if moisture. Some blistering may occur if moisture is entrapped in the deck at the moisture is entrapped in the deck at the time of application or, particularly in the time of application or, particularly in the case of new construction due to off-gas of case of new construction due to off-gas of the concrete when sealed. These blisters will the concrete when sealed. These blisters will disappear within a few days, without disappear within a few days, without detriment to the Liquid Rubber Engineered detriment to the Liquid Rubber Engineered Coatings Membrane as the moisture or gas is Coatings Membrane as the moisture or gas is absorbed into the substrate. absorbed into the substrate.


Remove all grates and other fittings to the Remove all grates and other fittings to the deck surface. Fill any significant irregularities deck surface. Fill any significant irregularities in the immediate substrate, such as cracks, in the immediate substrate, such as cracks, voids or bug holes, or large gaps in the case voids or bug holes, or large gaps in the case of pre-cast construction, with suitable filler to of pre-cast construction, with suitable filler to form a smooth surface. Once the existing form a smooth surface. Once the existing deck has been determined to be a sound deck has been determined to be a sound substrate for application, repair and/or substrate for application, repair and/or replace any details, flashing, or penetrations replace any details, flashing, or penetrations found to be suspect. found to be suspect.


Overlap details onto the existing system three Overlap details onto the existing system three (3) times the diameter of pipe penetrations or (3) times the diameter of pipe penetrations or a minimum of 100 mm to all sides. Clean all a minimum of 100 mm to all sides. Clean all newly installed metal surfaces, including newly installed metal surfaces, including details, flashings and penetrations, with details, flashings and penetrations, with environmentally friendly cleaner, to remove environmentally friendly cleaner, to remove any residual factory oils, rust or scale. Clean any residual factory oils, rust or scale. Clean all other bare metal surfaces to which will be all other bare metal surfaces to which will be applied and etch with environmentally applied and etch with environmentally friendly cleaner. Water wash to complete the friendly cleaner. Water wash to complete the cleaning process. Power-wash in the case of cleaning process. Power-wash in the case of heavy rust or scale heavy rust or scale

CONCRETE DECKINGCONCRETE DECKING Heavy rust or scale may require more than Heavy rust or scale may require more than

one application. All metal surfaces treated one application. All metal surfaces treated with environmentally friendly cleaner with environmentally friendly cleaner solution should be coated with Liquid solution should be coated with Liquid Rubber Engineered Coatings Membrane Rubber Engineered Coatings Membrane promptly to avoid flash rusting. Apply a promptly to avoid flash rusting. Apply a fillet, as necessary, after allowing time for fillet, as necessary, after allowing time for surfaces to dry. Install 20 mm x 20 mm surfaces to dry. Install 20 mm x 20 mm fillets to all 90-degree turn-ups, including fillets to all 90-degree turn-ups, including details and penetrations. Allow 12 hours details and penetrations. Allow 12 hours cure time prior to application of the Liquid cure time prior to application of the Liquid Rubber Engineered Coatings Membrane Rubber Engineered Coatings Membrane over filleting material Mask all areas as over filleting material Mask all areas as needed for protection from over-spray. needed for protection from over-spray. Mask terminations to a straight line Mask terminations to a straight line


APPLICATION APPLICATION 5.1 Determine whether 5.1 Determine whether the Liquid Rubber Engineered Coatings the Liquid Rubber Engineered Coatings Membrane is required as a coating, or a Membrane is required as a coating, or a membrane. The minimum membrane. The minimum recommended coating thickness is 1 recommended coating thickness is 1 mm. The minimum recommended mm. The minimum recommended membrane thickness is 2 mm. In either membrane thickness is 2 mm. In either case, the application procedures are as case, the application procedures are as follows follows


Begin spraying from the lowest point of the Begin spraying from the lowest point of the deck to the highest point. Spray a deck to the highest point. Spray a thickening of material (twice the system thickening of material (twice the system thickness) to all vertical to horizontal thickness) to all vertical to horizontal intersections, such as wall/roof turn-ups, intersections, such as wall/roof turn-ups, and to all expansion and construction joints, and to all expansion and construction joints, fillets and details. This thickening should fillets and details. This thickening should extend 100 mm up the vertical surface and extend 100 mm up the vertical surface and 150 mm onto the horizontal and at corners 150 mm onto the horizontal and at corners


Detail Liquid Rubber Engineered Coatings Detail Liquid Rubber Engineered Coatings Membrane into sumps and penetrations. Membrane into sumps and penetrations. Check Liquid Rubber Engineered Coatings Check Liquid Rubber Engineered Coatings Membrane for correct thickness in a grid Membrane for correct thickness in a grid pattern every 50 m2. If desired, application pattern every 50 m2. If desired, application of a coating may proceed following a of a coating may proceed following a minimum of five (5) days curing. In this minimum of five (5) days curing. In this case, the membrane must be washed down case, the membrane must be washed down with water to remove residue.with water to remove residue.

CONCRETE SLABSCONCRETE SLABS


GENERAL GENERAL The following is a typical specification for The following is a typical specification for

the Liquid Rubber Engineered Coatings the Liquid Rubber Engineered Coatings Membrane when applied as a new Membrane when applied as a new membrane to a concrete slab as a membrane to a concrete slab as a waterproofing medium. Each project will waterproofing medium. Each project will have special conditions and these should be have special conditions and these should be identified and addressed additional to this identified and addressed additional to this specification. If in doubt, seek the advice of specification. If in doubt, seek the advice of Liquid Rubber Engineered Coatings before Liquid Rubber Engineered Coatings before proceeding proceeding


QUALITY ASSURANCE QUALITY ASSURANCE The Liquid Rubber Engineered Coatings The Liquid Rubber Engineered Coatings

Membrane may only be applied by a qualified Membrane may only be applied by a qualified licensed Liquid Rubber Engineered Coatings licensed Liquid Rubber Engineered Coatings Applicator. Applicator.

A pre-installation conference, to include at A pre-installation conference, to include at least the contractor, Applicator and least the contractor, Applicator and architect/engineer should be held prior to architect/engineer should be held prior to application to ensure proper substrate and application to ensure proper substrate and conditions conditions


INSPECTION INSPECTION Prior to commencement of work, a thorough Prior to commencement of work, a thorough

inspection of the concrete surfaces should inspection of the concrete surfaces should be carried out to determine or confirm the be carried out to determine or confirm the following: Check concrete slab for voids and following: Check concrete slab for voids and irregularities. Check that there is sufficient irregularities. Check that there is sufficient and safe working area. Soundness and and safe working area. Soundness and correctness of pipe and other penetrations. correctness of pipe and other penetrations. This requires these penetrations be grouted This requires these penetrations be grouted in flush to the concrete and be free of voids in flush to the concrete and be free of voids and clear of concrete slab by a minimum of and clear of concrete slab by a minimum of 50 mm. 50 mm.


PREPARATION PREPARATION The Liquid Rubber The Liquid Rubber Engineered Coatings Membrane must be Engineered Coatings Membrane must be installed on a clean, noticeably dry and installed on a clean, noticeably dry and structurally sound surface, free of sharp structurally sound surface, free of sharp edges, loose or foreign material, dirt, oil, edges, loose or foreign material, dirt, oil, grease or other materials or debris that may grease or other materials or debris that may damage the Liquid Rubber Engineered damage the Liquid Rubber Engineered Coatings MembraneCoatings Membrane. .

Concrete slab to be of a light broom finish or Concrete slab to be of a light broom finish or smoother. Remove all concrete sharps, fins smoother. Remove all concrete sharps, fins and other irregularities. and other irregularities.


Patch concrete surfaces using sand Patch concrete surfaces using sand cement and bondcrete mixture to fill void cement and bondcrete mixture to fill void spaces. 4.2 All expansion joints to be spaces. 4.2 All expansion joints to be detailed as per engineers' specification. detailed as per engineers' specification.

Install 20 mm x 20 mm fillets to all 90-Install 20 mm x 20 mm fillets to all 90-degree up-turns. Mask all areas as needed degree up-turns. Mask all areas as needed for protection from over-spray Mask for protection from over-spray Mask terminations to a straight line. terminations to a straight line.

Prepare all steel: PVC penetration as per Prepare all steel: PVC penetration as per Section: “Preparation of PVC/Metal”.Section: “Preparation of PVC/Metal”.


APPLICATION APPLICATION Perimeter Terminations: Cut out lengths of Perimeter Terminations: Cut out lengths of

geo-fabric and spray apply Liquid Rubber geo-fabric and spray apply Liquid Rubber Engineered Coatings Membrane to a nominal Engineered Coatings Membrane to a nominal thickness of 2 mm minimum. Ensure that the thickness of 2 mm minimum. Ensure that the sprayed geo-fabric is tightly fitted into sprayed geo-fabric is tightly fitted into internal corners where form works meets the internal corners where form works meets the concrete slab. concrete slab.

This procedure should be done in sections (of This procedure should be done in sections (of a manageable size). Similarly, Liquid Rubber a manageable size). Similarly, Liquid Rubber Engineered Coatings Membrane should be Engineered Coatings Membrane should be applied in corresponding sections applied in corresponding sections


Begin spraying the concrete slab from the Begin spraying the concrete slab from the lowest point to the highest point making lowest point to the highest point making sure a thickening of material is applied to sure a thickening of material is applied to the joint where the perimeter termination the joint where the perimeter termination meets the concrete slab. meets the concrete slab.

Check Liquid Rubber Engineered Coatings Check Liquid Rubber Engineered Coatings Membrane for correct thickness in a grid Membrane for correct thickness in a grid pattern that incorporates sections not pattern that incorporates sections not greater than 10 m2. greater than 10 m2.

Complete a thorough inspection of the Complete a thorough inspection of the sprayed area prior to laying down a sprayed area prior to laying down a protection system protection system


Begin spraying from the footing to the Begin spraying from the footing to the highest point in slow even strokes. highest point in slow even strokes.

Spray a thickening of material (twice the Spray a thickening of material (twice the system thickness) to all expansion and system thickness) to all expansion and construction joints, as well as all 90-construction joints, as well as all 90-degree transitions. degree transitions.

This thickening should also extend a 150 This thickening should also extend a 150 mm either side of the corners mm either side of the corners


PROTECTION PROTECTION Roll out black geo-tech fabric over the Roll out black geo-tech fabric over the

entire horizontal area, making sure that entire horizontal area, making sure that lap-joints are a minimum of 50 mm. lap-joints are a minimum of 50 mm.

REINFORCING STEELREINFORCING STEEL All steel bar chair are to be supported on All steel bar chair are to be supported on

base plates. Precaution is to be taken not base plates. Precaution is to be taken not to damage the membrane during to damage the membrane during placement of concrete.placement of concrete.

Application GuidelinesApplication Guidelines

TANKING TO RETAINING WALLS, LIFT TANKING TO RETAINING WALLS, LIFT PITS AND OTHER SUBSTRUCTURE PITS AND OTHER SUBSTRUCTURE

APPLICATIONSAPPLICATIONS



GENERAL GENERAL The following is a typical The following is a typical specification for the Liquid Rubber specification for the Liquid Rubber Engineered Coatings Membrane when Engineered Coatings Membrane when applied as a tanking to retaining walls, applied as a tanking to retaining walls, basement walls, lift pits and other basement walls, lift pits and other substructures. Each project will have special substructures. Each project will have special conditions and these should be identified and conditions and these should be identified and addressed additional to this specification. If addressed additional to this specification. If in doubt, seek the advice of Liquid Rubber in doubt, seek the advice of Liquid Rubber Engineered Coatings , before proceeding Engineered Coatings , before proceeding




Membrane may only be applied by a qualified Membrane may only be applied by a qualified licensed Liquid Rubber Engineered Coatings licensed Liquid Rubber Engineered Coatings Applicator. Applicator.



APPLICATIONSAPPLICATIONS PREPARATION PREPARATION The Liquid Rubber Engineered Coatings The Liquid Rubber Engineered Coatings

Membrane must be installed on clean, dry Membrane must be installed on clean, dry and structurally sound concrete or other and structurally sound concrete or other sound base, or to geo-textiles as specified sound base, or to geo-textiles as specified by Liquid Rubber Engineered Coatings , by Liquid Rubber Engineered Coatings , Formed surfaces shall be finished in Formed surfaces shall be finished in accordance with the requirements of the accordance with the requirements of the architect or engineer. Slab surfaces shall be architect or engineer. Slab surfaces shall be given a float finish to a class B tolerance given a float finish to a class B tolerance throughout. throughout.

Application to surfaces where curing Application to surfaces where curing compounds have been used should be compounds have been used should be referred to Liquid Rubber Engineered referred to Liquid Rubber Engineered Coatings before proceeding. Coatings before proceeding.


APPLICATIONSAPPLICATIONS If the concrete surface has been soiled If the concrete surface has been soiled

with oil, grease or an accumulation of mud with oil, grease or an accumulation of mud or dirt, it must be washed with an or dirt, it must be washed with an industrial detergent or degreaser industrial detergent or degreaser compound, followed by a thorough rinsing compound, followed by a thorough rinsing and drying. and drying.

All loose concrete, laitance, sharp edges, All loose concrete, laitance, sharp edges, oil or unusual stains should be removed by oil or unusual stains should be removed by sandblasting, water blasting or etching. All sandblasting, water blasting or etching. All excess sand, laitance, dust and dirt shall excess sand, laitance, dust and dirt shall be removed, leaving a clean, dry surface, be removed, leaving a clean, dry surface, at the junction where the wall meets the at the junction where the wall meets the footing is to be cleared a minimum of 50 footing is to be cleared a minimum of 50 mm to continue membrane to footing mm to continue membrane to footing



To all penetrations, outlets, up-turns and other To all penetrations, outlets, up-turns and other details provide a 20 mm fillet of suitable fillet details provide a 20 mm fillet of suitable fillet material. Penetrations to be a minimum of 50 mm material. Penetrations to be a minimum of 50 mm from slab level.from slab level.

Application GuidelinesApplication Guidelines APPLICATION APPLICATION Liquid Rubber Engineered Coatings Membrane shall Liquid Rubber Engineered Coatings Membrane shall

be applied to the specific thickness (usually 2 mm) be applied to the specific thickness (usually 2 mm) starting at low points or base of wall. starting at low points or base of wall.

DETAILING DETAILING Refer to Section: “Typical Details”. If unusual details Refer to Section: “Typical Details”. If unusual details

are present Liquid Rubber Engineered Coatings , will are present Liquid Rubber Engineered Coatings , will design details to the specific project. design details to the specific project.



PROTECTION OF PROTECTION OF MEMBRANEMEMBRANE

Liquid Rubber Liquid Rubber Engineered Coatings Engineered Coatings Membrane must be Membrane must be protected from protected from backfill material and backfill material and physical abuse by physical abuse by the installation of the installation of suitable protection suitable protection board.board.

BEFORE

ROOF WATERPROOFING AND ROOF WATERPROOFING AND

COATING SPECIFICATIONSCOATING SPECIFICATIONS

ROOF WATERPROOFING AND ROOF WATERPROOFING AND COATING SPECIFICATIONSCOATING SPECIFICATIONS

DESCRIPTION DESCRIPTION Applicator must provide fluid applied roofing Applicator must provide fluid applied roofing

as indicated, specified and required By as indicated, specified and required By Liquid Rubber Engineered Coatings, Principle Liquid Rubber Engineered Coatings, Principle work in this Section work in this Section includesincludes: • Cold fluid : • Cold fluid applied roof coatings on buildings Related applied roof coatings on buildings Related work work not not in this Section: • Flashing and in this Section: • Flashing and sheet metal • Joint sealers sheet metal • Joint sealers Note: Note: “General “General Requirements” applies to this Section Requirements” applies to this Section


QUALITY ASSURANCE QUALITY ASSURANCE Roofing Roofing Contractor/Applicator shall be trained and Contractor/Applicator shall be trained and approved by manufacturer, Liquid Rubber approved by manufacturer, Liquid Rubber Engineered Coatings, A pre-installation Engineered Coatings, A pre-installation conference shall be held prior to application conference shall be held prior to application of roofing membrane to assure proper of roofing membrane to assure proper substrate and installation conditions, to substrate and installation conditions, to include contractor, Applicator, architect include contractor, Applicator, architect (engineer and special inspector (if any)). (engineer and special inspector (if any)).


SUBMITTALS SUBMITTALS Project Data Submit manufacturers' Project Data Submit manufacturers'

product data and installation instructions product data and installation instructions for specific applications. for specific applications.

Sample - Submit representative samples Sample - Submit representative samples of the following for approval: of the following for approval:

1) Roofing membrane material 2) Base 1) Roofing membrane material 2) Base Sheet 3) Scrim 4) Top coats 5) Foot traffic Sheet 3) Scrim 4) Top coats 5) Foot traffic pads pads


DELIVERY, STORAGE AND HANDLINGDELIVERY, STORAGE AND HANDLING

Deliver materials to site in original Deliver materials to site in original unbroken packages bearing unbroken packages bearing manufacturer's label showing; brand, manufacturer's label showing; brand, weight, volume and batch number. weight, volume and batch number.

Store materials at site in strict compliance Store materials at site in strict compliance with manufacturer's instructions. Do not with manufacturer's instructions. Do not allow materials to freeze in containers.allow materials to freeze in containers.


JOB CONDITIONS JOB CONDITIONS Protect and mask all Protect and mask all adjacent areas from overspray. Perform work adjacent areas from overspray. Perform work only when existing and forecasted weather only when existing and forecasted weather conditions are within manufacturers conditions are within manufacturers recommendations for the material and recommendations for the material and product used. Minimum clearance of 24 product used. Minimum clearance of 24 inches is required for the application of inches is required for the application of product. For areas with less than 24-inch product. For areas with less than 24-inch clearance, the product may be applied by clearance, the product may be applied by hand using Liquid Rubber Engineered hand using Liquid Rubber Engineered Coatings Trowel Grade. Ambient temperature Coatings Trowel Grade. Ambient temperature shall be within manufacturers specifications shall be within manufacturers specifications (greater than 45 Deg F/7 Degree C). (greater than 45 Deg F/7 Degree C).


All plumbing, electrical, mechanical and All plumbing, electrical, mechanical and structural items to be under or passing structural items to be under or passing through the roofing membrane shall be through the roofing membrane shall be positively secured in their proper positions positively secured in their proper positions and appropriately protected prior to and appropriately protected prior to membrane applicationmembrane application

PRODUCT WARRANTY PRODUCT WARRANTY Specific provisions of the warranties are Specific provisions of the warranties are

available upon request. available upon request.


MATERIALS MATERIALS Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings

Membrane is a fluid applied roofing Membrane is a fluid applied roofing system. Waterborne and spray to be system. Waterborne and spray to be applied at ambient temperatures. A applied at ambient temperatures. A nominal thickness of 80 dry mils (60 mil nominal thickness of 80 dry mils (60 mil minimum) unless specified otherwise. minimum) unless specified otherwise.

Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings Membrane is non-toxic and odorless Membrane is non-toxic and odorless


EXAMINATION EXAMINATION All surfaces to be roofed All surfaces to be roofed shall be inspected and approved by the shall be inspected and approved by the Applicator at least one day prior to Applicator at least one day prior to commencing work. commencing work.

SURFACE PREPARTION SURFACE PREPARTION Provide 24-inch Provide 24-inch minimum clearance out from surfaces to minimum clearance out from surfaces to receive the roofing membrane. receive the roofing membrane. The The application surface shall be prepared application surface shall be prepared for the Applicator in accordance with for the Applicator in accordance with manufacturer's specifications listed manufacturer's specifications listed below: Concrete Roof Decksbelow: Concrete Roof Decks


Concrete surfaces shall be light broom finish Concrete surfaces shall be light broom finish or smooth free of any dirt, debris, and loose or smooth free of any dirt, debris, and loose material, release agents or curing material, release agents or curing compounds. compounds.

Fill all voids more than ¼ inch deep and ¼ Fill all voids more than ¼ inch deep and ¼ inch wide. All penetrations shall be prepared inch wide. All penetrations shall be prepared in accordance with manufacturers in accordance with manufacturers specifications. Prepare all flashings in specifications. Prepare all flashings in accordance to common roofing practice.accordance to common roofing practice.


INSTALLATION ON CONCRETEINSTALLATION ON CONCRETE Due to the numerous variables affecting Due to the numerous variables affecting

concrete (i.e.: water content, mix concrete (i.e.: water content, mix specifications, cement source, "free-line" specifications, cement source, "free-line" percentage, calcium content, pumped vs percentage, calcium content, pumped vs poured, environmental conditions at the poured, environmental conditions at the time of concrete placement, admixtures, time of concrete placement, admixtures, acidity, type of finish, curing conditions, acidity, type of finish, curing conditions, etc.) every job will require pre-testing of etc.) every job will require pre-testing of Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings Membrane to determine the installation Membrane to determine the installation procedure.procedure.


Follow the procedures below carefully. Follow the procedures below carefully. "Sealing Around Penetrations", for "Sealing Around Penetrations", for

procedures to seal around penetrations. procedures to seal around penetrations. Provide a ¾ inch minimum cant of Liquid Provide a ¾ inch minimum cant of Liquid Rubber Trowel Grade, or other suitable Rubber Trowel Grade, or other suitable material, at all horizontal to vertical material, at all horizontal to vertical transitions and other inside corners of 90-transitions and other inside corners of 90-degree or less. Leave to cure a minimum of degree or less. Leave to cure a minimum of 24 hours before the application of Liquid 24 hours before the application of Liquid Rubber Engineered Coatings Membrane. Rubber Engineered Coatings Membrane. Delineate a test area on site with a minimum Delineate a test area on site with a minimum dimension of 10 feet by 10 feet (3m by 3m). dimension of 10 feet by 10 feet (3m by 3m).


Apply Liquid Rubber Engineered Coatings Apply Liquid Rubber Engineered Coatings Membrane to a thickness of 80 mills and let it Membrane to a thickness of 80 mills and let it cure for 24 hours. Observe for blisters. If minor cure for 24 hours. Observe for blisters. If minor or no blistering occurs, proceed to the next or no blistering occurs, proceed to the next step. If blistering does occur, apply a thin (10-step. If blistering does occur, apply a thin (10-mil) tack coat of Liquid Rubber Engineered mil) tack coat of Liquid Rubber Engineered Coatings Membrane without catalyst to the Coatings Membrane without catalyst to the concrete surface and allow to cure before concrete surface and allow to cure before proceeding. proceeding.

Remove all standing water before application of Remove all standing water before application of Liquid Rubber Engineered Coatings Membrane. Liquid Rubber Engineered Coatings Membrane.

INSTALLATION ON CONCRETEINSTALLATION ON CONCRETE

Spray apply Liquid Rubber Engineered Spray apply Liquid Rubber Engineered Coatings Membrane at 80 mil nominal dry Coatings Membrane at 80 mil nominal dry thickness (60 mils minimum). thickness (60 mils minimum).

If a second coat is required, remove any If a second coat is required, remove any standing water from the membrane before standing water from the membrane before proceeding with the second application. In proceeding with the second application. In all area of where recurrent traffic is all area of where recurrent traffic is expected (i.e.: equipment maintenance expected (i.e.: equipment maintenance paths), install foot traffic pads paths), install foot traffic pads

NON-HORIZONTAL SURFACES NON-HORIZONTAL SURFACES Spray on Spray on roofs and vertical surfaces, such as parapet roofs and vertical surfaces, such as parapet walls, should begin at the low point (typically walls, should begin at the low point (typically at the drains) and work towards the high point. at the drains) and work towards the high point.

This method allows the product to adhere to This method allows the product to adhere to the surface before hitting catalyst run-off. the surface before hitting catalyst run-off. Note: Note: It is normal for some blistering to occur. It is normal for some blistering to occur. A small number of blister heads should be A small number of blister heads should be sampled and checked for proper membrane sampled and checked for proper membrane thickness thickness

INSTALLATION ON INSTALLATION ON CONCRETECONCRETE

INSTALLATION ON CONCRETEINSTALLATION ON CONCRETE

If the samples have the required If the samples have the required membrane thickness (80 mils nominal/60 membrane thickness (80 mils nominal/60 mils minimum), then the remaining mils minimum), then the remaining blisters should not be punctured or cut. blisters should not be punctured or cut.

If the samples have less than the If the samples have less than the minimum 60 mils, then the area can either minimum 60 mils, then the area can either be re-sprayed to obtain the proper be re-sprayed to obtain the proper thickness, or the blisters can be cut out thickness, or the blisters can be cut out and the area re-sprayed or patched with and the area re-sprayed or patched with Liquid Rubber Trowel Grade, to a minimum Liquid Rubber Trowel Grade, to a minimum thickness of 80 dry mils over the cut-out thickness of 80 dry mils over the cut-out area extending a minimum of three inches area extending a minimum of three inches (3") beyond the cut. (3") beyond the cut.

LIGHT WEIGHT CONCRETE ROOF LIGHT WEIGHT CONCRETE ROOF DECKSDECKS

""Sealing Around Penetrations" for Sealing Around Penetrations" for procedures to seal around penetrations. procedures to seal around penetrations.

Mechanically attach 28 lb fiberglass base Mechanically attach 28 lb fiberglass base sheet to deck in accordance with local sheet to deck in accordance with local Application Guidelines code. Application Guidelines code.

Provide ¾ inch minimum cant of Liquid Provide ¾ inch minimum cant of Liquid Rubber Trowel Grade, at all horizontal to Rubber Trowel Grade, at all horizontal to vertical transitions and other inside corners vertical transitions and other inside corners of 90-degree or less. Allow to cure a of 90-degree or less. Allow to cure a minimum of 24 hours before the application minimum of 24 hours before the application of Liquid Rubber Engineered Coatings of Liquid Rubber Engineered Coatings Membrane. Fiberglass scrim may be used Membrane. Fiberglass scrim may be used over the deck area if require. As the spray over the deck area if require. As the spray application begins, set the roll ends by application begins, set the roll ends by spraying through the scrim. Then roll out spraying through the scrim. Then roll out the scrim ahead of the sprayer, keeping the the scrim ahead of the sprayer, keeping the scrim tight and wrinkle-free at all times.scrim tight and wrinkle-free at all times.


Overlap seams a minimum of three (3) Overlap seams a minimum of three (3) inches. Cut all folds or wrinkles and lay flat inches. Cut all folds or wrinkles and lay flat so as not to create voids. Attach scrim tight so as not to create voids. Attach scrim tight in all corners so as not to create voids. in all corners so as not to create voids. Remove all standing water before Remove all standing water before application of Liquid Rubber Engineered application of Liquid Rubber Engineered Coatings Membrane. Spray-apply Liquid Coatings Membrane. Spray-apply Liquid Rubber Engineered Coatings Membrane to Rubber Engineered Coatings Membrane to an 80-mil nominal dry thickness (60 mils an 80-mil nominal dry thickness (60 mils minimum) if a second coat is required, minimum) if a second coat is required, remove any standing water from the remove any standing water from the membrane before proceeding with the membrane before proceeding with the second application. In all areas of where second application. In all areas of where recurrent traffic is expected (i.e.: Equipment recurrent traffic is expected (i.e.: Equipment maintenance paths), install foot traffic pads maintenance paths), install foot traffic pads


NON-HORIZONTAL SURFACES NON-HORIZONTAL SURFACES Spray on roofs and vertical surfaces, Spray on roofs and vertical surfaces, such as parapet walls, should begin such as parapet walls, should begin at the low point (typically at the at the low point (typically at the drains) and work towards the high drains) and work towards the high point. This method allows the point. This method allows the product to adhere to the surface product to adhere to the surface before hitting catalyst run-off before hitting catalyst run-off


FIELD QUALITY CONTROL FIELD QUALITY CONTROL Field Quality Control Field Quality Control is a very important part of all membrane is a very important part of all membrane applications. Applicators should check their own applications. Applicators should check their own work for coverage, thickness, and all around good work for coverage, thickness, and all around good workmanship before calling for inspections. workmanship before calling for inspections.

When thickness or integrity is in question, the When thickness or integrity is in question, the membrane should be tested in the proper manner membrane should be tested in the proper manner as described below. However, over-sampling as described below. However, over-sampling defeats the intent of inspections. Inspectors defeats the intent of inspections. Inspectors should always use visual and tactile should always use visual and tactile measurement to Application Guidelines guide measurement to Application Guidelines guide them. Areas suspected of being too thin to the them. Areas suspected of being too thin to the touch should be measured with the gauges to touch should be measured with the gauges to determine the exact thickness. With practice and determine the exact thickness. With practice and by comparing tactile measurements with those of by comparing tactile measurements with those of the gauges, fingers become very accurate tools the gauges, fingers become very accurate tools

INSPECTION METHODSINSPECTION METHODS

#1 #1 Membrane may be checked for Membrane may be checked for coverage with a lightly oiled, needle nose coverage with a lightly oiled, needle nose depth gauge, or by taking four (4) cut-outs depth gauge, or by taking four (4) cut-outs of one (1) square inch every five thousand of one (1) square inch every five thousand (5,000) square feet. Record the minimum (5,000) square feet. Record the minimum reading. Mark the test area. Test areas are reading. Mark the test area. Test areas are to be patch over with Liquid Rubber to be patch over with Liquid Rubber Engineered Coatings Membrane to an 80-Engineered Coatings Membrane to an 80-mil minimum dry thickness, extending a mil minimum dry thickness, extending a minimum of one (1) inch beyond the test minimum of one (1) inch beyond the test perimeter perimeter


#2 #2 Samples to be inspected may be cut from the Samples to be inspected may be cut from the membrane to a minimum area of two (2) square membrane to a minimum area of two (2) square inches per five hundred (500) square feet. Voids left inches per five hundred (500) square feet. Voids left by sampling are to be patched with fiberglass and by sampling are to be patched with fiberglass and must overlap the void by a minimum of two (2) must overlap the void by a minimum of two (2) inches. Spray or trowel-apply Liquid Rubber inches. Spray or trowel-apply Liquid Rubber Engineered Coatings Membrane to an 80-mil Engineered Coatings Membrane to an 80-mil minimum dry thickness, extending at least three (3) minimum dry thickness, extending at least three (3) inches beyond scrim patch. inches beyond scrim patch. Note: Note: Due to the Due to the nature of concrete as a substrate it is normal for nature of concrete as a substrate it is normal for some blistering to occur. This is caused by either some blistering to occur. This is caused by either the concrete's tendency to off-gas when sealed, or the concrete's tendency to off-gas when sealed, or water that is temporarily trapped between the water that is temporarily trapped between the concrete and the membrane. With time blisters will concrete and the membrane. With time blisters will absorb into the concrete without detriment to the absorb into the concrete without detriment to the membrane membrane


A small number of blister heads should be A small number of blister heads should be sampled and checked for proper membrane sampled and checked for proper membrane thickness. If the samples have the required thickness. If the samples have the required membrane thicknessmembrane thickness

(80-mil nominal/60-mil minimum), then the (80-mil nominal/60-mil minimum), then the remaining blisters should not be punctured or cut. remaining blisters should not be punctured or cut. If the samples have less than the minimum 60-If the samples have less than the minimum 60-mils, then the area can either be re-sprayed to mils, then the area can either be re-sprayed to obtain the proper thickness, or the blisters can be obtain the proper thickness, or the blisters can be cut out and the area re-sprayed or patched with cut out and the area re-sprayed or patched with Liquid Rubber Trowel GradeLiquid Rubber Trowel Grade

TYPICAL LIQUID RUBBER ENGINEERED TYPICAL LIQUID RUBBER ENGINEERED COATINGS MEMBRANE APPLICATION COATINGS MEMBRANE APPLICATION

NOTESNOTES The Membrane shall be spray applied in liquid form The Membrane shall be spray applied in liquid form

and air cured to form a seamless film. The and air cured to form a seamless film. The application shall be via a plural component spray application shall be via a plural component spray gun and delivery equipment as approved by Liquid gun and delivery equipment as approved by Liquid Rubber Engineered Coatings Industries. The Rubber Engineered Coatings Industries. The Membrane System shall be supplied and installed Membrane System shall be supplied and installed by an approved Applicator. The spray gun and by an approved Applicator. The spray gun and associated delivery equipment shall be set up such associated delivery equipment shall be set up such so that the separate emulsion and catalyst are so that the separate emulsion and catalyst are combined in two even fan patterns with no combined in two even fan patterns with no precipitation of either component. It shall produce a precipitation of either component. It shall produce a non-liquid coating exhibiting a finely textured non-liquid coating exhibiting a finely textured surface with the characteristic of uniformly surface with the characteristic of uniformly releasing the water carrier contained within the releasing the water carrier contained within the emulsion. emulsion.


NOTESNOTES

The Applicator shall avoid overbuilding the The Applicator shall avoid overbuilding the Membrane beyond 5 mm without interlaying Membrane beyond 5 mm without interlaying a layer of reinforcement fabric. a layer of reinforcement fabric.

CURING CURING The nominal standard curing time is 48 hrs at The nominal standard curing time is 48 hrs at

20oC. 20oC. PROTECTION OF WORKS PROTECTION OF WORKS The works The works shall be barricaded to prevent pedestrian or shall be barricaded to prevent pedestrian or vehicular traffic. The membrane Applicators vehicular traffic. The membrane Applicators shall attend and control their work until wear shall attend and control their work until wear protection overlays are installed complete. protection overlays are installed complete.


NOTESNOTES REINFORCEMENT / PROTECTION REINFORCEMENT / PROTECTION

Immediately upon completion of the Immediately upon completion of the membrane application, a covering layer of membrane application, a covering layer of geo-textile reinforcement shall be laid level geo-textile reinforcement shall be laid level to promote adhesion to the membrane and to promote adhesion to the membrane and be followed by such protective sheeting, over be followed by such protective sheeting, over cladding, or coating as specified. cladding, or coating as specified.

Insulation (if required): Insulation (if required): Cover all Cover all membrane surfaces both horizontally and membrane surfaces both horizontally and vertically with high density polystyrene foam vertically with high density polystyrene foam panels, 10 mm gap fitted to cover the entire panels, 10 mm gap fitted to cover the entire roof membrane and aligned to facilitate roof roof membrane and aligned to facilitate roof drainage. drainage.


NOTESNOTES

REPAIRS REPAIRS If the membrane suffers damage it If the membrane suffers damage it shall be repaired by repeating the application shall be repaired by repeating the application process and overlapping the damaged area process and overlapping the damaged area that has been trimmed and cleaned. that has been trimmed and cleaned.

GENERAL NOTESGENERAL NOTES The Works Contractor shall provide works The Works Contractor shall provide works

access, and site safety practices to avoid access, and site safety practices to avoid endangering the waterproofing Applicator, endangering the waterproofing Applicator, the passing public, and the building tenants.the passing public, and the building tenants.

STANDARD SURFACE STANDARD SURFACE

SPECIFICATIONSPECIFICATION PREPARATION PREPARATION Membrane substrate surfaces must be Membrane substrate surfaces must be

clean and free of debris. The surface must clean and free of debris. The surface must be free of wax, oil, and contaminants, and be free of wax, oil, and contaminants, and offer an unpolished, non-slippery, fine offer an unpolished, non-slippery, fine textured uniform base to the proposed textured uniform base to the proposed Membrane, Membrane, (EQUAL TO BULL FLOAT (EQUAL TO BULL FLOAT FINISHED 90 SLUMP CONCRETE)FINISHED 90 SLUMP CONCRETE). Proper . Proper surface preparation may require de-oiling, surface preparation may require de-oiling, de-waxing, laitance removal, etching, shot de-waxing, laitance removal, etching, shot peening, blast cleaning, crack filling, peening, blast cleaning, crack filling, remedial fill topping, or adhered grade remedial fill topping, or adhered grade topping, as necessary. topping, as necessary. BLOCKWORK BLOCKWORK

All block work to be flushed jointed with no All block work to be flushed jointed with no holes left in mortar joints. holes left in mortar joints.

STANDARD SURFACE STANDARD SURFACE SPECIFICATIONSPECIFICATION

CONCRETECONCRETE Free from voids, bony surfaces or metal Free from voids, bony surfaces or metal

protrusions. Surfaces are to be free from protrusions. Surfaces are to be free from curing agents, form release agents or curing agents, form release agents or chemicals that would interfere with the chemicals that would interfere with the bonding capacity of the curing membrane bonding capacity of the curing membrane to the substrate. to the substrate.

INTERNAL CORNERSINTERNAL CORNERS Applicator must form 20 mm x 20 mm Applicator must form 20 mm x 20 mm

coved corners. coved corners. EXTERNAL CORNERS EXTERNAL CORNERS Built up Built up


PENETRATION PENETRATION All penetrations to be minimum of 20 mm All penetrations to be minimum of 20 mm

from parallel surface. • Dual penetrations to from parallel surface. • Dual penetrations to be a minimum of 20 mm apart. • All pipe be a minimum of 20 mm apart. • All pipe penetrations to be tightly secured prior to penetrations to be tightly secured prior to membrane application. • All wastes and or membrane application. • All wastes and or overflows to be flushed to enable overflows to be flushed to enable application of membrane. • All penetrations application of membrane. • All penetrations are to be sleeved, directed and / or fixed are to be sleeved, directed and / or fixed (i.e.: incapable of independent movement) (i.e.: incapable of independent movement)


NOTATIONNOTATION A minimum of 600 mm working space is A minimum of 600 mm working space is

required behind all walls. All surfaces to be required behind all walls. All surfaces to be applied with Liquid Rubber Engineered applied with Liquid Rubber Engineered Coatings must be clear and free from non-Coatings must be clear and free from non-structural or architectural structures. structural or architectural structures.

Surfaces not prepared as specified above may Surfaces not prepared as specified above may void warranty and / or incur site approval visit void warranty and / or incur site approval visit charges from Liquid Rubber Engineered charges from Liquid Rubber Engineered Coatings Coatings

RMS: OFF-FORM CONCRETE WALLS OR RMS: OFF-FORM CONCRETE WALLS OR

SLABSSLABS GENERAL GENERAL The following is a typical specification for the The following is a typical specification for the

Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings Membrane system when applied as a coating Membrane system when applied as a coating or new membrane to off-form concrete walls or new membrane to off-form concrete walls as the waterproofing medium in below grade as the waterproofing medium in below grade walls. walls.

Each project will have special conditions and Each project will have special conditions and these should be identified and addressed these should be identified and addressed additional to this specification. If in doubt, additional to this specification. If in doubt, seek the advice of Liquid Rubber Engineered seek the advice of Liquid Rubber Engineered Coatings before proceeding Coatings before proceeding

RMS: OFF-FORM CONCRETE WALLS OR RMS: OFF-FORM CONCRETE WALLS OR SLABSSLABS


Membrane system may only be applied by a Membrane system may only be applied by a qualified licensed Liquid Rubber Engineered qualified licensed Liquid Rubber Engineered Coatings , Applicator. Coatings , Applicator.



INSPECTIONINSPECTION Prior to commencement of work, a thorough Prior to commencement of work, a thorough

inspection of the deck surface should be carried inspection of the deck surface should be carried out to determine or confirm the following: out to determine or confirm the following:

Identify the exact detailing and relative level, Identify the exact detailing and relative level, determining the design requirements of the determining the design requirements of the membrane system. membrane system.

Complete exposure to the total depth arid all Complete exposure to the total depth arid all other concrete surfaces to allow application of the other concrete surfaces to allow application of the Liquid Rubber Engineered Coatings Membrane Liquid Rubber Engineered Coatings Membrane system to the extent shown on the design system to the extent shown on the design drawings. drawings.

Soundness and correctness of pipe and other Soundness and correctness of pipe and other penetrations. This requires these penetrations be penetrations. This requires these penetrations be grouted in flush to the concrete free of voids and grouted in flush to the concrete free of voids and clear of slab by minimum of 50 mm. clear of slab by minimum of 50 mm.

Inspect and accept substrate as provided Inspect and accept substrate as provided


PREPARATION PREPARATION The Liquid Rubber The Liquid Rubber Engineered Coatings Membrane System Engineered Coatings Membrane System must be installed on a clean, dry and must be installed on a clean, dry and structurally sound surface, free of sharp structurally sound surface, free of sharp edges, loose or foreign material, dirt, oil, edges, loose or foreign material, dirt, oil, grease or other materials or debris that grease or other materials or debris that may damage the Liquid Rubber Engineered may damage the Liquid Rubber Engineered Coatings Membrane system. Coatings Membrane system.

Use of curing and release Agents: These Use of curing and release Agents: These should be avoided where possible. If should be avoided where possible. If required non-oil based types are preferred. required non-oil based types are preferred. All use of curing and release agents should All use of curing and release agents should be identified for type and referred to Liquid be identified for type and referred to Liquid Rubber Engineered Coatings , for Rubber Engineered Coatings , for appropriate preparation requirements appropriate preparation requirements

RMS: OFF-FORM CONCRETE WALLS OR SLABSRMS: OFF-FORM CONCRETE WALLS OR SLABS

Substrate preparation Applicators should identify Substrate preparation Applicators should identify the requirements for off-form concrete, as the requirements for off-form concrete, as specified by class and imposed on concrete specified by class and imposed on concrete contractor. Determine minimum acceptable level.contractor. Determine minimum acceptable level.

Liquid Rubber Engineered Coatings Membrane Liquid Rubber Engineered Coatings Membrane System can be applied to off form concrete walls in System can be applied to off form concrete walls in little as 24 hours from constructing. However this little as 24 hours from constructing. However this should be done only if they are intended to be should be done only if they are intended to be back-filled immediately. Due to the back-filled immediately. Due to the impervious/fully bonded nature of Liquid Rubber impervious/fully bonded nature of Liquid Rubber Engineered Coatings Membrane System in this Engineered Coatings Membrane System in this application it is normal to expect vapour blisters. application it is normal to expect vapour blisters. These blisters are increased proportionate to the These blisters are increased proportionate to the residual moisture in the concrete and are, in all residual moisture in the concrete and are, in all cases of no consequence to the Liquid Rubber cases of no consequence to the Liquid Rubber Engineered Coatings Membrane Engineered Coatings Membrane


Once the heat source is insulated by, first Once the heat source is insulated by, first protection board and finally backfilling, all protection board and finally backfilling, all entrapped moisture vapour will take the path of entrapped moisture vapour will take the path of least resistance and dissipate through the non-least resistance and dissipate through the non-membrane faces of the wall. If minimal to no membrane faces of the wall. If minimal to no blisters is desired, 28 days curing of concrete blisters is desired, 28 days curing of concrete should proceed the application of the Liquid should proceed the application of the Liquid Rubber Engineered Coatings Membrane System. Rubber Engineered Coatings Membrane System.

Using a stiff bristle brush or similar, fully expose a Using a stiff bristle brush or similar, fully expose a minimum of 50 mm clear area onto the footing at minimum of 50 mm clear area onto the footing at base. Sweep any sand, dirt or other debris from base. Sweep any sand, dirt or other debris from the wall and footing to allow the installation of the wall and footing to allow the installation of Liquid Rubber Engineered Coatings Membrane to Liquid Rubber Engineered Coatings Membrane to clean surfaces and a well-defined work area clean surfaces and a well-defined work area


Chip, grind or otherwise remove all concrete Chip, grind or otherwise remove all concrete sharps, fins and other irregularities. Patch sharps, fins and other irregularities. Patch concrete surfaces using a sand and cement concrete surfaces using a sand and cement mixture and bondcrete to fill all void spaces. mixture and bondcrete to fill all void spaces.

Smooth sharp irregularities in wall contours, Smooth sharp irregularities in wall contours, i.e.: vertical/horizontal contours left by form i.e.: vertical/horizontal contours left by form ply sheet edges. ply sheet edges.

Install 20 mm x 20 mm fillets to all 90-degree Install 20 mm x 20 mm fillets to all 90-degree up-turns and penetrations. up-turns and penetrations.

Mask all areas as needed for protection from Mask all areas as needed for protection from over-spray. Mask terminations to a straight over-spray. Mask terminations to a straight line. line.


APPLICATION APPLICATION Liquid Rubber Engineered Coatings Liquid Rubber Engineered Coatings

Membrane System for this application to be Membrane System for this application to be applied at a thickness between 2 mm to 3 applied at a thickness between 2 mm to 3 mm. mm.

Begin spraying from the footing to the Begin spraying from the footing to the highest point in slow even strokes. Spray a highest point in slow even strokes. Spray a thickening of material (twice the system thickening of material (twice the system thickness) to all expansion and construction thickness) to all expansion and construction joint, as well as all 90-degree transitions. joint, as well as all 90-degree transitions.

This thickening should also extend a 150 mm This thickening should also extend a 150 mm either side of the corners either side of the corners


Check Liquid Rubber Engineered Coatings Check Liquid Rubber Engineered Coatings Membrane System for correct thickness in Membrane System for correct thickness in a grid pattern that incorporates sections a grid pattern that incorporates sections not greater than 10 m2. not greater than 10 m2.

Following the completion of application and Following the completion of application and Quality Assurance checks, Liquid Rubber Quality Assurance checks, Liquid Rubber Engineered Coatings , recommends the Engineered Coatings , recommends the installation of a protective geo-fabric (M12) installation of a protective geo-fabric (M12) with selected back-fill.with selected back-fill.

concrete specifications. below grade block-work general general the following is a typical...

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