SECTION 07120

FLUID APPLIED WATERPROOFING

PART 1 GENERAL

SECTION INCLUDES

Fluid applied [rubberized asphalt] [elastomeric] [________] membrane waterproofing.

Cant strips.

[Surface dusting.] [Protective covering.]

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [______-____________]: Placement of [________] 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 [counter flashing] [________] work.

Section 15430 - Plumbing Specialties: Drain flashing flanges.

REFERENCES

ASTM D412 - Rubber Properties in Tension.

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

ASTM C836 - High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use With Separate Wearing Course.

ASTMD 624 - Rubber Property - Tear Resistance.

ASTM D2240 - Rubber Property - Durometer Hardness.

ASTM D3468 - Liquid-Applied Neoprene and Chlorosulfonated Polyethylene Used in Roofing and Waterproofing.

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 prevent moisture migration.

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

Waterproofing System: [____] applications of fluid applied material to prevent moisture migration.

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

Waterproofing Material Manufacturer: Company specializing

in waterproofing membrane 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, jointing, attachment method, 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 removal and replacement of materials concealing waterproofing.]

PART 2 PRODUCTS

MANUFACTURERS

[__________________________________] Product [_________].

[__________________________________] Product [_________].

[__________________________________] Product [_________].

Substitutions: Under provisions of Section [01600.]

[________.]

MEMBRANE COMPOUND MATERIAL

Waterproofing Membrane: Elasticized rubberized asphaltic compound, hot poured, quick setting.

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

Waterproofing Membrane: [ASTM C836] [ASTM D3468]; [one] [two] component elastomeric compound; [cold applied], [quick setting]. [____] inches ([____] mm) minimum cured thickness.

Cured Membrane Characteristics:

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	[________]

ACCESSORIES

Surface [Conditioner] [Primer]: [________] type, compatible with membrane compound; as recommended by membrane manufacturer.

Elastic Flashings: [47] [____] mil ([1.2] [____] mm) thick, [butyl] [neoprene] [EPDM] [________], as recommended by membrane manufacturer.

Joint Cover Sheet: [____] mil ([____] mm) thick elastic sheet material designated for and compatible with membrane.

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

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

Back-up Material: [PVC membrane] [Butyl rod] [________].

Reglet Strip Devices: [________________].

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

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

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

PROTECTIVE MATERIALS

Tack-free Surfacing:	[Type 1 Portland cement.] [Stone dust.]

Separation Sheet: Sheet [polyethylene] [________], [6] [____] mil ([0.15] [____] mm) thick.

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] [polystryene foam sheet] [asphalt wood fiberboard] [bitumen impregnated glass fiberboard] [________]; [________] manufactured by [____________].

PART 3 EXECUTION

EXAMINATION

Verify substrate surfaces are durable; free of frozen matter, dampness, loose particles, cracks, pits, projections, or foreign matter detrimental to adhesion or application of waterproofing system.

Verify that substrate surfaces are smooth, free of honeycomb or pitting, and not detrimental to full contact bond of waterproofing materials.

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] [________].]

APPLICATION

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

Apply [12] [____] inch ([300] [____] mm) wide strip of joint cover sheet over cracks, non-working joints [, and expansion joints over 1/16 inch (1.6 mm) but not exceeding 1/2 inch (13 mm) in width].

At expansion joints from 1/2 to 1 inch (13 to 25 mm) in width, loop cover sheet down into joint between 1-1/4 and 1-3/4 inch (31 and 44 mm). Extend sheet [6] [____] inches ([150] [____] mm) on either side of expansion joint.

Center cover sheet over crack or joints.	Roll sheet into 1/8 inch (3.2 mm) coating of waterproofing material. Apply second coat over sheet extending minimum of 6 inches (150 mm) beyond sheet edges. [Apply this procedure to expansion joints between horizontal and vertical surfaces.]

Apply waterproofing material in accordance with manufacturer's instructions.

Apply and spread waterproofing material to minimum [____] [inch] [mil] ([____] mm) cured thickness, averaging [____] [inch] [mil] ([____] mm) in thickness.

Continue waterproofing material up vertical surfaces minimum [6] [____] inches ([150] [____] mm).

[Install cant strips at internal corners.]

Apply extra thickness of waterproofing material at corners, intersections, angles, and over [________] joints.

Seal watertight, items projecting through waterproofing material.

Extend waterproofing material [and flexible flashing] into drain clamp flange, apply liberal coating of liquid membrane to assure clamp ring seal. Coordinate with drain installation, Section [15430] [________].

Install membrane flashings and seal into waterproofing material.

Conform to NRCA - Waterproofing Manual drawing details as noted:

[________] - [____________________________].

FIELD QUALITY CONTROL

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

On completion of membrane installation, dam installation area as directed by Architect/Engineer, in preparation for flood testing.

Flood to minimum depth of [1] [____] inch ([25] [____] mm) with clean water. After 48 hours, verify no leaks with Architect/Engineer.

If leaking is found, remove water, patch 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.

Immediately after [cooling] [curing], dust membrane with [stone dust] [Portland cement] at rate of approximately [10] [____] lbs/100 sq ft ([4] [____] kg/10 sq m).

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

After membrane has [cooled] [cured], but before it becomes dusty, apply separation sheet. Lap joints to ensure complete coverage.

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

Protect waterproofing material from damage by adhering protection board [, applied with compatible adhesive] over waterproofing material surface. Apply protection boards over [cooled] [cured] waterproofing material surface. Scribe and cut boards around projections and interruptions.

SCHEDULE

WATERPROOFING SCHEDULE

Foundation Wall:	20 mil thick waterproofing; 30 mil thick at internal and external corners; asphalt impregnated board protective cover.

Subgrade Tunnel:	45 mil thick waterproofing on walls and roof of tunnel; 60 mil thick at external corners; 2 inch thick rigid insulation protective cover.

END OF SECTION