SECTION 07190

VAPOR AND AIR BARRIERS

PART 1 GENERAL

SECTION INCLUDES

Sheet and sealant materials to provide a continuous vapor and air barrier throughout the building envelope and to seal wall vapor and air barrier to [window] [door] [and] [________] frame openings.

RELATED SECTIONS

Section [_____-__________]: Vapor or air barrier as an integral part of [________________] system.

Section [______-____________]:	Waterproofing membrane.

Section [______-____________]: Insulation[.] [and vapor and air barrier.]

Section 07270 - Firestopping.

Section [______-____________]: Roofing membrane[.] [and vapor and air barrier.]

Section 07900 - Joint Sealers:	Sealants.

Section [______-____________]:	Door frames.

Section [______-____________]:	Window frames.

REFERENCES

ASTM A361 - Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process for Roofing and Siding.

ANSI/ASTM D491 - Asphalt Mastic Used on Waterproofing.

ASTM C804 - Recommended Practice for Use of Solvent-Release Type Sealant.

FS TT-S-001657 - Sealing Compound, Single Component, Butyl Rubber Based, Solvent Release Type.

FS TT-S-00230 - Sealing Compounds, Synthetic-Rubber Base, Single Component, Chemically Curing.

Sealant and Waterproofer's Institute - Sealant and Caulking Guide Specification.

PERFORMANCE REQUIREMENTS

Materials of this Section shall provide continuity of

building enclosure vapor and air barrier:

In conjunction with materials described in Section [07212] [07213] [07270] [07900] [and][.] [________.]

To seal gaps between building enclosure components and wall and roof opening frames.

To seal [________________.]

SUBMITTALS

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

Product Data: Provide data indicating material characteristics, performance criteria, limitations, [and][.] [________________.]

Manufacturer's Installation Instructions: Indicate preparation and installation requirements, techniques.

QUALITY ASSURANCE

Perform Work in accordance with Sealant and Waterproofer's Institute - Sealant and Calking Guide Specification requirements for [materials] [and][.] [installation.]

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

QUALIFICATIONS

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

MOCK-UP

Provide mock-up of vapor and air barrier materials under provisions of Section [01400.] [________.]

Construct typical [exterior wall] [__________] panel, [_____] ft ([____] m) long by [______] ft ([____] m) wide, incorporating [window] [________] openings with frame and sill installed, insulation, [building corner condition,] [junction with roof vapor barrier] [and] [________________]; illustrating materials interface and seals.

Locate [where directed.] [__________________________.]

Mock-up may [not] remain as part of the Work.

PRE-INSTALLATION CONFERENCE

Convene [one] [_____] week prior to commencing work of this Section, under provisions of Section [01039.] [________.]

ENVIRONMENTAL REQUIREMENTS

Do not install solvent curing sealants in enclosed

building spaces without ventilation.

Maintain temperature and humidity recommended by the materials manufacturers before, during, and after installation.

SEQUENCING

Sequence Work under the provisions of Section [01010.] [________.]

Sequence Work to permit installation of materials in conjunction with other retardant materials and seals.

COORDINATION

Coordinate work under provisions of Section [01039.] [________.]

Coordinate the work of this Section with all Sections referencing this Section.

WARRANTY

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

Warranty: Include coverage of installed [sealant] [and] [sheet materials] which fail to achieve air tight and watertight seal, exhibit loss of adhesion or cohesion, or do not cure.

PART 2 PRODUCTS

SHEET MATERIALS

Sheet Barrier [Type [1] [__]]: Black polyethylene film for above grade application, [10] [20] [____] mil ([0.25] [0.50] [____] mm) thick; [________] manufactured by [_______________.]

Sheet Barrier [Type [2] [__]]: Black polyethylene film reinforced with glass fiber square mesh, [____] mil ([____] mm) thick; [________] manufactured by [________________.]

Sheet Barrier [Type [3] [__]]: [Butyl] [Neoprene] [________], black color, [47] [____] mil ([1.2] [____] mm) thick; [________] manufactured by [________________.]

Sheet Barrier [Type [4] [__]]: Rubberized asphalt bonded to sheet polyethylene, [40] [____] mil ([1] [____] mm) thick; [________] manufactured by [________________.]

Sheet Barrier [Type [5] [__]]: [ASTM A361,] galvanized steel, [G90] [____] zinc coating; [24] [26] [____] gage ([0.6] [0.5] [____] mm) core steel.

SEALANTS

Butyl Sealant [Type [A] [__]]: [FS TT-S-001657,] butyl rubber base, single component, solvent release, non-skinning, Shore 'A' Hardness Range of [10 to 30] [____ to ____]; black color; [________] manufactured by [________________.]

Polysulphide Sealant [Type [B] [__]]: [FS TT-S-00230, Type II Class A;] single component, chemical curing, capable of continuous water immersion, non-sagging type, [________] black color, [________] manufactured by [________________.]

Polyurethane Sealant [Type [C] [__]]: [FS [TT-S-00230 Type II;] single component, chemical curing, non-sagging, Shore 'A' Hardness Range of [20 to 35] [___ to ___], black color; [________] manufactured by [________________.]

Primer: [Recommended by sealant manufacturer] to suit application.

Cleaner:	Non-corrosive type; recommended by sealant manufacturer; compatible with adjacent materials.

ADHESIVES

Mastic Adhesive:	[ANSI/ASTM D491,] asphalt type, compatible with sheet barrier and substrate, thick mastic of uniform consistency; [________] manufactured by [________________.]

Adhesive: Compatible with sheet barrier and substrate, permanently non-curing; [________] manufactured by [________________.]

ACCESSORIES

Thinner and Cleaner for [Butyl] [Neoprene] [________] Sheet: As recommended by sheet material manufacturer.

Tape: [Bright aluminum] [Polyethylene] [Polyester] self-adhering type, [mesh reinforced], [2] [____] inch ([50] [____] mm) wide, compatible with sheet material.

Attachments:	[Galvanized steel] [________] bars and anchors.

PART 3 EXECUTION

APPLICATORS

[____________________________________.]

[____________________________________.]

[____________________________________.]

EXAMINATION

Verify condition of substrate and adjacent materials under provisions of Section [01039.] [________.]

Verify that surfaces and conditions are ready to accept the Work.

PREPARATION

Remove loose or foreign matter which might impair adhesion.

Clean and prime substrate surfaces to receive [adhesive] [and] [sealants] in accordance with manufacturers' instructions.

INSTALLATION

Install sheet materials in accordance with manufacturer's instructions.

Perform preparation and installation for solvent release sealants in accordance with ASTM C804.

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

Install sealant in accordance with manufacturer's instructions.

Secure sheet barrier [Type [____]] to wall vapor and air barrier with [adhesive.] [tape.] [continuous metal bar with anchors.] Calk with [Type [____]] sealant to ensure complete seal. [Position lap seal over firm bearing.]

Lap sheet barrier [Type [____]] onto roof vapor and air barrier and seal with [sealant.] [adhesive.] Calk with [Type [____]] sealant to ensure complete seal. [Position lap seal over firm bearing.]

Install sheet barrier [Type [____]] between [window] [and] [door] frames and adjacent wall vapor and air barrier and seal with [sealant.] [adhesive.] Calk with [________] sealant to ensure complete seal. [Position lap seal over firm bearing.]

Apply sealant within recommended application temperature ranges. Consult manufacturer when sealant cannot be applied within these temperature ranges.

PROTECTION OF FINISHED WORK

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

Do not permit adjacent Work to damage Work of this Section.

SCHEDULES

Window Frame Perimeter: Lap sheet barrier Type 4 from wall vapor barrier (with 3 inches of contact over firm bearing) to window frame (with 1 inch of contact). Seal with sealant Type A.

Wall and Roof Junction: Lap sheet barrier Type 2 from wall vapor barrier (with 6 inches of contact over firm bearing) to roof vapor barrier (with 4 inches of contact). Seal with sealant Type A.

END OF SECTION