SECTION 07110

SHEET MEMBRANE WATERPROOFING

PART 1 GENERAL

SECTION INCLUDES

[Loose laid] [Adhesive applied] [Self adhesive] [Torch applied] [Mechanically attached] elastomeric sheet membrane waterproofing.

Cant strips.

[Protective cover.]

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [______-____________]: Placement of [flashing devices] [special coated metal] [________] for counter flashing work of this section.

RELATED SECTIONS

Section 02223 - Backfilling.

Section [______-____________]:	Concrete substrate.

Section [______-____________]: Grouting joints of precast concrete deck surfaces.

Section [______-____________]: Masonry joints prepared to receive flashings.

Section 07160 - Bituminous Dampproofing.

Section [______-____________]:	[________] type waterproofing.

Section 07212 - Board Insulation: Perimeter [and horizontal] insulation [protective cover].

****** [OR] ******

Section [______-____________]:	[________] cover.

Section 07620 - Sheet Metal Flashing and Trim: Metal [parapet] [coping] [counter flashing] [________] work.

Section 07900 - Joint Sealers.

Section 15430 - Plumbing Specialties: Drain flashing flanges.

REFERENCES

ASTM D412 - Rubber Properties in Tension.

ASTM D624 - Rubber Property - Tear Resistance.

ANSI/ASTM D746 - Brittleness Temperature of Plastics and Elastomers by Impact.

ASTM D822 - Operating Light and Water-Exposure Apparatus (Carbon-Arc Type) for Testing Paint, Varnish, Lacquer, and Related Coatings and Materials.

ASTM D1004 - Initial Tear Resistance of Plastic Film and Sheeting.

ASTM D2240 - Rubber Property - Durometer Hardness.

ASTM D3020 - Polyethylene and Ethylene Copolymer Plastic Sheeting for Pond, Canal, and Reservoir Lining.

ASTM D3253 - Vulcanized Rubber Sheeting for Pond, Canal, and Reservoir Lining.

ASTM D4068 - Chlorinated Polyethylene (CPE) Sheeting for Concealed Water-Containment Membrane.

ASTM D4551 - Poly (Vinyl Chloride) (PVC) Plastic Flexible Concealed Water-Containment Membrane.

ASTM E96 - Water Vapor Transmission of Materials.

NRCA (National Roofing Contractors Association) - Waterproofing Manual.

SYSTEM DESCRIPTION

Waterproofing System: Capable of resisting water head of [____] feet ([____] mm) and preventing moisture migration to interior.

SUBMITTALS

Submit under provisions of Section [01300.] [________.]

Shop Drawings: Indicate special joint or termination conditions and conditions of interface with other materials.

Product Data: Provide data for [surface conditioner], flexible flashings, joint cover sheet, and joint and crack sealants, with temperature range for application of waterproofing membrane.

Manufacturer's Installation Instructions: Indicate special procedures and perimeter conditions requiring special attention.

Manufacturer's Certificate: Certify that [Products] [________] meet or exceed [specified requirements] [________].

QUALITY ASSURANCE

Perform Work in accordance with NRCA Waterproofing Manual.

Maintain [one copy] [[____] copies] of [each] document on site.

QUALIFICATIONS

Membrane Manufacturer: Company specializing in waterproofing sheet membranes with [three] [_______] years experience.

Applicator: Company specializing in performing the work of this section [with minimum [__________] years [documented] experience.] [approved by manufacturer.]

MOCKUP

Provide mockup of waterproofing system under provisions of Section [01400.] [________.]

Mockup: [100] [____] sq ft ([10] [____] sq m) of [horizontal] [and] [vertical] waterproofed panel; to represent finished work including internal and external corners, seam jointing, attachment method, counter flashing cover, [base flashings,] [control] [and] [expansion] joints, [protective cover].

Mockup may [not] remain as part of the Work.

ENVIRONMENTAL REQUIREMENTS

Maintain ambient temperatures above [40] [____] degrees F ([5] [____] degrees C) for [24] [____] hours before and during application and until liquid or mastic accessories have cured.

WARRANTY

Provide [five] [____] year warranty under provisions of Section [01700.] [________.]

Warranty: Include coverage for waterproofing failing to resist penetration of water, except where such failures are the result of structural failures of building. Hairline cracking of concrete due to temperature change of shrinkage is not considered a structural failure.

****** [OR] ******

Warranty: Include coverage for waterproofing failing to resist penetration of water.

[For warranty repair work, be responsible for removing and replacing materials concealing waterproofing.]

PART 2 PRODUCTS

MANUFACTURERS

[__________________________________] Product [_________].

[__________________________________] Product [_________].

[__________________________________] Product [_________].

Substitutions: Under provisions of Section [01600.] [________.]

MEMBRANE MATERIALS

Vulcanized Rubber Membrane: [Butyl conforming to ASTM D3253 Type I] [EPDM conforming to ASTM D3253 Type II] [Chloroprene / Neoprene conforming to ASTM D3253 Type III] [________]; [____] [inch] [mils] ([____] mm) thick; [____] inch ([____] mm) wide roll; conforming to the following criteria:

****** [OR] ******

Plastic Membrane: [PVC conforming to ASTM D4551] [HDPE conforming to ASTM D3020 Type I] [Ethylene Copolymer conforming to ASTM D3020 Type II] [CPE conforming to ASTM D4068] [CSPE conforming to ASTM D4068] [Hypalon] [________]; [____] [inch] [mils] ([____] mm) thick; [____] inch ([____] mm) wide roll; conforming to the following criteria:

****** [OR] ******

Membrane: [____] [inch] [mils] ([____] mm) thick; [____] inch ([____] mm) wide roll; conforming to the following criteria:

****** [OR] ******

Modified Bituminous Membrane: Asphalt and polymer modifiers of [styrene-butadiene-styrene (SBS)] [atactic polypropylene (APP)] type, reinforced with non-woven [polyester] [fiber glass] [polyethylene] [polypropylene]; smooth surfaced; [____] [inch] [mils] ([____] mm) thick; [____] inch ([____] mm) wide roll; conforming to the following criteria:

****** [OR] ******

Composite Laminate Membrane:	Comprised of [____] [inch] [mils] ([____] mm) thickness of [________] and a [____] [inch] [mils] ([____] mm) thickness of [________]; [____] [inch] [mils] ([____] mm) total thickness; [____] inch ([____] mm) wide roll; conforming to the following criteria:

Properties ________Test________________Results

Tensile Strength:	ASTM D412	[________]

Elongation:	ASTM D412	[________]

Hardness - Shore A: ASTM D2240	[________]

Tear Strength:	ASTM [D624] [D1004] [________]

Water Absorption:	[________]	[________]

Moisture Vapor:	ASTM E96	[________] perms

Exposure:	ASTM D822	[________]

Low Temperature

Brittleness:	ANSI/ASTM D746	[________]

Seaming Materials:	As recommended by membrane manufacturer.

Flexible Flashings: [____] [inch] [mils] ([____] mm) thick [butyl] [neoprene] [________].

ADHESIVE MATERIALS

Surface Conditioner:	[____] type, compatible with membrane.

Adhesives:	As recommended by membrane manufacturer.

Thinner and Cleaner:	As recommended by adhesive manufacturer, compatible with sheet membrane.

ATTACHMENT MATERIALS

Battens: [________________].

Disc Washers and Screws: [________________].

Circular membrane Discs: [________________].

Reglet Strip Devices: [________________].

ACCESSORIES

Sealant:	[As specified in Section [07900] [________]] [As recommended by membrane manufacturer.] [[________] type, manufactured by [____________].]

Protection Board: Rigid insulation specified in Section [07212.] [________.]

****** [OR] ******

Protection Board: [1/8] [1/4] [1/2] [____] inch ([3] [6] [13] [____] mm) thick [biodegradable hardboard] [polystyrene foam sheet] [asphalt wood fiberboard] [bitumen impregnated glass fiberboard] [________]; [________] manufactured by [____________].

Cant Strips:	[Premolded composition material] [Bitumen impregnated fiberboard] [________]; [________] manufactured by [____________].

Flexible Flashings: [____] [inch] [mils] ([____] mm) thick, [butyl] [EPDM [________]; [________] manufactured by [____________].

Counter Flashings: [____] as specified in Section [07620.] [________.]

****** [OR] ******

Counter Flashings: [Galvanized steel] [________] type, [____] [inch] [gage] ([____] mm) thick.

PART 3 EXECUTION

EXAMINATION

Verify substrate surfaces are durable; free of matter detrimental to adhesion or application of waterproofing system.

Verify items which penetrate surfaces to receive waterproofing are securely installed.

PREPARATION

Protect adjacent surfaces not designated to receive waterproofing.

Clean and prepare surfaces to receive waterproofing in accordance with manufacturer's instructions. [Vacuum substrate clean.]

Do not apply waterproofing to surfaces unacceptable to [manufacturer] [or] [applicator].

Seal cracks and joints with sealant materials using depth to width ratio [as recommended by sealant manufacturer.] [in accordance with Section [07900] [________].]

Apply surface conditioner at a rate [of [____] ([____]).] [recommended by manufacturer.] Protect conditioner from rain or frost until dry.

INSTALLATION - LOOSE LAID

Install membrane waterproofing in accordance with manufacturer's instructions.

Roll out membrane.	Minimize wrinkles and bubbles.

Overlap edges and ends and seal by [solvent welding] [heat welding] [contact tape] [contact adhesive], minimum [3] [____] inches ([75] [____] mm). Seal permanently waterproof. [Apply uniform bead of sealant to joint edge.]

Reinforce membrane with multiple thicknesses of membrane material over static or moving joints.

[Weatherlap joints on sloped substrate in direction of drainage. Seal joints and seams.]

Install flexible flashings. Seal watertight to membrane.

Seal flashings to adjoining surfaces.

Extend membrane [up cant strips and] minimum of [6] [____] inches ([150] [____] mm) onto vertical surfaces.

Seal items penetrating membrane and install counter flashing membrane material.

****** [OR] ******

INSTALLATION - [ADHESIVE BONDED] [SELF ADHERED] [TORCH APPLIED]

Install membrane waterproofing in accordance with manufacturer's instructions.

Roll out membrane.	Minimize wrinkles and bubbles.

Remove release paper layer. Roll out on substrate with a mechanical roller to encourage full contact bond.

****** [OR] ******

Apply adhesive [at a rate of [____] ([____]).] [in accordance with manufacturer's instructions.] Bond sheet to [substrate] [membrane disc] except those areas directly over or within [3] [____] inches ([75] [____] mm) of a control or expansion joint.

****** [OR] ******

Apply membrane by torch application, coated side down.

Lap sides and ends in accordance with membrane manufacturer's instructions.

Overlap edges and ends and seal [with [contact adhesive] [________],] [by heat sealing,] minimum [3] [____] inches ([75] [____] mm). Seal permanently waterproof. [Apply uniform bead of sealant to joint edge.]

Reinforce membrane with multiple thickness of membrane material over joints, whether joints are static or moving.

[Weatherlap joints on sloped substrate in direction of drainage. Seal joints and seams. Coordinate with drain installation, Section [15430] [________].]

Install flexible flashings. Seal watertight to membrane.

Seal membrane and flashings to adjoining surfaces.

Extend membrane [up cant strips and] minimum of [6] [____] inches ([150] [____] mm) onto vertical surfaces.

Seal items penetrating membrane and install counter flashing membrane material.

****** [OR] ******

INSTALLATION - MECHANICALLY ATTACHED

Install membrane waterproofing in accordance with manufacturer's instructions.

Roll out membrane.	Minimize wrinkles and bubbles.

Install [mechanical fasteners] [________] in accordance with [________].]

[Bond sheet to membrane disc.]

Overlap edges and ends and seal by [solvent] welding] [heat welding] [contact tape] [contact adhesive], minimum [3] [____] inches ([75] [____] mm). Seal permanently waterproof. [Apply uniform bead of sealant to joint edge.]

[Shingle joints on sloped substrate in direction of drainage. Seal joints and seams.]

Install flexible flashings. Seal watertight to membrane.

Seal membrane and flashings to adjoining surfaces.

Extend membrane [up cant strips and] minimum of [6] [____] inches ([150] [____] mm) onto vertical surfaces.

Seal items penetrating membrane and install counter flashing membrane material.

FIELD QUALITY CONTROL

Field [inspection and] testing will be performed under provisions of Section [01400.] [________.]

On completion of horizontal membrane installation, dam installation area in preparation for flood testing.

Flood to minimum depth of [1] [____] inch ([25] [____] mm) with clean water. After 48 hours, inspect for leaks.

If leaking is found, remove water, repair leaking areas with new waterproofing materials as directed by Architect/Engineer; repeat flood test. Repair damage to building.

When area is proven watertight, drain water and remove dam.

PROTECTION OF FINISHED WORK

Protect finished Work under provisions of Section [01500.] [________.]

Do not permit traffic over unprotected or uncovered membrane.

Protect membrane from damage by adhering protection board [, applied with mastic] over membrane surface. Scribe and cut boards around projections and interruptions.

SCHEDULE

WATERPROOFING SCHEDULE

Foundation Wall:	One ply of CPE membrane waterproofing; three plies at internal corners; adhesive applied.

Plaza Deck Waterproofing: One ply of Hypalon membrane waterproofing, add two additional plies at external corners; adhesive applied.

END OF SECTION