SA Vapor Retarder
Description
GAF SA Vapor Retarder is an SBS modified bitumen vapor retarder for use in approved GAF roof assemblies. GAF SA Vapor Retarder is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen in combination with a high tack self-adhesive. The topside is surfaced with high-strength trilaminate polyethylene film and the underside is surfaced with protective polyolefin release film that is removed during application.
Advantages
- 45" (1.1 m) roll provides increased coverage across roof deck
- Easy-to-peel release film for faster installation
- Durable top surface protects roof from inclement weather
- High tensile strength provides resistance to foot traffic
Uses
GAF SA Vapor Retarder may be applied to:
- Steel
- Plywood
- Gypsum
- Concrete
- Asphalt Panels
Application:
GAF SA Vapor Retarder can be applied at temperatures between 50°F (10°C) and 100°F (38°C). All substrates except metal decks must be primed. Vapor retarder should be installed with minimum 3" (76.2 mm) side laps and 6" (152.4 mm) end laps.
Applicable Standards
- FM Approved
- UL Listed
- State of Florida approved
| Product Specifications (nominal) | |
| Roll Size | 5 squares (502.5 gross sq. ft.) (46.68 m2) |
| Roll Length | 134' (40.8 m) |
| Roll Width | 45" (1.1 m) |
| Approx. Roll Weight | 80 lb. (35.8 kg) |
| Typical Physical Properties | |||
| Property | MD Value | XMD Value | Test Method |
| Thickness, mils (mm) | 31 (0.8) | 31 (0.8) | ASTM D5147 |
| Tensile strength, lbf/in (kN/m) |
54 (9.5) | 74 (13) | ASTM D5147 |
| Ultimate elongation @ 73.4°F (23°C), % |
33 | 25 | ASTM D5147 |
| Tear resistance, lbf (N) | 95 (423) | 103 (458) | ASTM D1970 |
| Static puncture, lbf (N) | 90 (400) | 90 (400) | ASTM D5602 |
| Lap adhesion, lbf/ft (N/m) |
68 (1000) | 68 (1000) | ASTM D1876 |
| Water absorption, % | 0.1 | 0.1 | ASTM D5147 |
| Peel resistance, lbf/in (N/m) |
5.4 (950) | 5.4 (950) | ASTM D903 |
| Cold bending, °F (°C) | -58 (-50) | -58 (-50) | ASTM D5147 |
| Water vapor permeance, perm (ng/Pa.s.m2) |
0.03 (1.7) | ASTM E96 | |
| Air permeability, L/s•m2 | < 0.001 | ASTM E283 | |
Documents
All documents are U.S. English unless otherwise noted
