GAF ELK StormGuard®
Protect Your Home From Wind-Driven Rain And Damaging Ice Dams With A Waterproof Leak Barrier
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A Quality Leak Barrier Will:
Create a 100% watertight seal that keeps water out at the most vulnerable areas of your shingle or metal roof (at the eaves and rakes, in valleys, around chimneys, etc.).
StormGuard®, a quality leak barrier, will:
- Protect your home by preventing costly repairs due to wall or ceiling staining
- Help prevent leaks due to water damming in your gutters, wind-driven rain, and, in the North, damaging ice dams
StormGuard® leak barrier is a key part of the GAF-Elk Smart Choice® Roof System Solution.
Don’t Put Your Home At Risk
- The Codes Are Clear...
Protection against ice dams is required* at eaves wherever the January average temperature is 25°F or lower or where there is a possibility of ice forming in the eaves– i.e., the area labeled “North” (shown below).†
- But Be Prepared...
Ice dams can still occur in areas where the average temperature is above 25°F (not to mention wind-driven rain).
- Avoid The Risks...
If you are in an area that requires leak barrier protection–and if there is a leak–you could be putting your insurance coverage at risk by not installing it!
*Check local building codes for specifications in your area.
†Source: International Building Code (ICBO), IRC, UBC, NBC, and SBC.
Homeowner’s Best Choice
- Looks Better...
Fiberglass reinforcement helps resist wrinkling and buckling–lays flatter under shingles.
- Meets Building Codes...
In the North, where a leak barrier MUST be used.†
- Peace Of Mind...
Benefits from the same warranty term as the asphalt shingle it is applied under, up to a maximum of 30 yrs.*
Professional’s Best Choice
- Helps Eliminate Waste...
Special adhesive allows for one-time repositioning, but aggressively adheres over time.
- Safer Installation...
Unique film surface pattern improves footing even in hot weather.
- Dependable...
Self-seals around nails or metal roofing fasteners.
- Saves Labor...
Split-back release film peels off in layers for faster installation and greater homeowner value.
- Convenient...
2.0 square roll sizes.
- Great For Emergencies...
Can be left exposed for up to 60 days if necessary.
- Versatile...
The high temperature compound is suitable for most metal roof applications. For application under copper and zinc, contact technical services at 1-800-766-3411 for information.
* See ltd. warranty for complete coverage and restrictions.
| †In the “North,” building code requires the use of leak barrier at the eaves. |
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Application Instructions
StormGuard® Application Instructions
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)
- Roll Length . . . . 66.8 ft (20.3 m)
- Roll Width . . . . . . . 36 in (0.9 m)
- Square Feet Per Roll. . .200 sq ft (18.6 sq m)
Applicable Standards
- ICC Pending
- Meets the performance criteria of ASTM D1970
- Texas Department of Insurance
- Miami-Dade County Approved
- State of Florida Approved
- UL Classified. See complete marking on product
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