StormGuard
Protect Your Home From Wind-Driven Rain And Damaging Ice Dams With A Waterproof
Leak Barrier.
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® Film-Surfaced Leak Barrier is a key part of the GAF
Lifetime Roofing System, and has even earned the prestigious Good Housekeeping Seal.

The GAF Lifetime Roofing System has earned the prestigious Good Housekeeping Seal,
which means that Good Housekeeping stands behind the products in this system. (Refer
to Good Housekeeping Magazine for its consumer protection policy.)
Don’t Put Your Home At Risk
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The Codes Are Clear...
Protection against ice dams is required
Check local building codes for specifications in your area.
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".
Source: International Building Code (ICBO), IRC, UBC, NBC, and SBC.
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But Be Prepared...
Ice dams can still occur in areas where the average temperature is above 25°F (not
to mention wind-driven rain)
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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!
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Homeowner’s Best Choice
Professional’s Best Choice
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Helps Eliminate Waste...
Special adhesive allows for one-time repositioning, but aggressively adheres over
time
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Dependable...
Self-seals around nails or metal roofing fasteners
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Saves Labor...
Split-back release film peels off in layers for faster installation and greater
homeowner value
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Convenient...
2.0 square roll sizes.
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Great For Emergencies...
Can be left exposed for up to 60 days if necessary
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Versatile...
The high temperature compound is suitable for most shingle roof systems and metal roof applications.
For application under copper and zinc, contact technical services at 1-800-766-3411
for information.
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Specifications
GAF StormGuard® Leak Barrier EXCEEDS the following requirements of
ASTM D1970
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Thickness (mils)
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D5147
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Min. 40
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Tensile strength MD (lbf/in)
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D2523
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Min. 25
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Tensile strength CMD (lbf/in)
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D2523
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Min. 25
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Elongation at break, modified bitumen; Portion - MD and CMD (%)
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D2523
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Min. 10
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Adhesion to plywood at 75°F (lbf/ft-width)
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D903
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Min. 12
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Adhesion to plywood at 40°F (lbf/ft-width)
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D903
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Min. 2
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Thermal stability (mm)
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D1204
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Max. 3
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Low temperature flexibility ( –20°F)
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D1970
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Pass
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Tear resistance MD (lbf)
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D4073
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Min. 20
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Tear resistance CMD (lbf)
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D4073
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Min. 20
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Moisture vapor permeance (U.S. Perms)
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E96 A
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Max 0.1
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Sealability around nail
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D1970
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Pass
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Waterproof integrity after low temperature flexibility
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D1970
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Pass
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Waterproof integrity of lap seam
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D1970
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Pass
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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)
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Applicable Standards
- ICC-ES Evaluation Report (ESR 1322)
- 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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