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StormGuard Product Information |
StormGuard Instructions, Data Sheets, Codes |
StormGuard® Leak Barrier
Protect Your Home From Wind-Driven Rain And Damaging Ice Dams With A Waterproof Leak Barrier.
A Quality Leak Barrier Will:
StormGuard®, a quality leak barrier, will:
StormGuard® leak barrier is a key part of the GAF-Elk Smart Choice® Roof System Solution.
Don’t Put Your Home At Risk
*Check local building codes for specifications in your area. †Source: International Building Code (ICBO), IRC, UBC, NBC, and SBC. |
Homeowner’s Best Choice
Professional’s Best Choice
* See ltd. warranty for complete coverage and restrictions |
Specifications
GAF-Elk StormGuard® Leak Barrier EXCEEDS the following requirements of ASTM D1970
| Property | Method | Requirement |
| Thickness (mils) | D5147 | Min. 40 |
| Tensile strength MD (lbf/in) | D2523 | Min. 25 |
| Tensile strength CMD (lbf/in) | D2523 | Min. 25 |
| Elongation at break, modified bitumen; Portion - MD and CMD (%) | D2523 | Min. 10 |
| Adhesion to plywood at 75°F (lbf/ft-width) | D903 | Min. 12 |
| Adhesion to plywood at 40°F (lbf/ft-width) | D903 | Min. 2 |
| Thermal stability (mm) | D1204 | Max. 3 |
| Low temperature flexibility ( –20°F) | D1970 | Pass |
| Tear resistance MD (lbf) | D4073 | Min. 20 |
| Tear resistance CMD (lbf) | D4073 | Min. 20 |
| Moisture vapor permeance (U.S. Perms) | E96 A | Max 0.1 |
| Sealability around nail | D1970 | Pass |
| Waterproof integrity after low temperature flexibility | D1970 | Pass |
| Waterproof integrity of lap seam | D1970 | Pass |
Product Specifications (Nominal)
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Applicable Standards
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