GAF Roof Leak Barriers / Water & Ice Shields
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“Protect Your Investment And Safeguard Vulnerable Areas”
Use the Tabs below to navigate our GAF™ Leak Barriers, Water & Ice Shields we offer |
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[wptabtitle]StormGuard®[/wptabtitle] [wptabcontent]
StormGuard® Film-Surfaced Leak BarrierProtect 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® Film-Surfaced Leak Barrier is a key part of the GAF Lifetime Roofing System, and has even earned the prestigious Good Housekeeping Seal.
Don’t Put Your Home At Risk
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The Codes Are Clear…
Protection against ice dams is requiredat 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”. -
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!
Homeowner’s Best Choice
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Looks Better…
Fiberglass reinforcement helps resist wrinkling and buckling – lays flatter under shingles
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Meets Building Codes…
In the North, where a leak barrier MUST be used
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Peace Of Mind…
Up to a Lifetime ltd. warranty when used on Lifetime Shingle roofs, (See Details) up to a 25-year ltd. warranty when used on non-Lifetime Shingle roofs, and up to a 10-year ltd. warranty when used with other approved roof coverings.
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.
Specifications
GAF 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)
| Specification | |
| 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-ES Evaluation Report (ESR 1322)
- Meets the performance criteria of ASTM D1970
- Miami-Dade County Approved
- State of Florida Approved
- UL Classified. See complete marking on product
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[wptabtitle]WeatherWatch® XT [/wptabtitle] [wptabcontent]
Weather Watch® XT Leak BarrierMat surfaced leak barrier with XTra traction, suitable for application under shingle roofs. |
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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 roof (at the eaves and rakes, in valleys, around chimneys, etc.).
Weather Watch® XT, 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
Weather Watch® XT Mat-Surfaced Leak Barrier is a key part of the GAF Lifetime Roofing System, and has even earned the prestigious Good Housekeeping Seal.
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”. -
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!
Homeowner’s Best Choice
-
Looks Better…
Fiberglass reinforcement helps resist wrinkling and buckling – lays flatter under shingles
-
Meets Building Codes…
In the North, where leak barrier MUST be used
-
Peace Of Mind…
Up to a Lifetime ltd. warranty when used on Lifetime Shingle roofs, (See Details) up to a 25-year ltd. warranty when used on non-Lifetime Shingle roofs, and up to a 12-year ltd. warranty when used with other approved roof membranes.
Professional’s Best Choice
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Dependable…
Self-seals around nails or metal roofing fasteners
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Safer…
Specially coated surface with added tack for extra traction under foot
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Saves Labor…
Dual-side selvage and split-back release film speed installation for greater homeowner value
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Convenient…
2.0 square roll size
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Great For Emergencies…
Can be left exposed for up to 60 days (steep-slope applications only) if necessary
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Versatile…
Weather Watch® Leak Barriers are excellent vapor retarders exceeding ASTM D1970 requirements with a .05* vapor permeance (*Based on internal testing)
Specifications
GAF Weather Watch® XT 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)
| Specification | 2.0 Square Roll |
| Roll length | 66.7 ft (20.3 m) |
| Roll width | 36 in (0.9m) |
| Sq. feet per roll | 200 sq ft (18.6 sq m) |
Applicable Standards
- ICC-ES Evaluation Report pending
- Meets the performance criteria of ASTM D1970
- UL Classified. See complete marking on product
- Florida Building Code approved
Precautionary Note: Due to the added tack in Weather Watch®XT, asphaltic residue may be tracked over exposed surface. Protect walking surfaces to avoid staining, especially in hot weather.
Note: See application instructions for complete information.
For low-slope applications and other uses, see www.gaf.com.
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[wptabtitle]WeatherWatch®[/wptabtitle] [wptabcontent]
Weather Watch® Leak BarrierProtect Your Home From Wind-Driven Rain And Damaging Ice Dams With A Waterproof Leak Barrier. |
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IMPORTANT NOTE: The product Information Sheet for Weather Watch® Leak Barrier with a print date of 10/07 listed the incorrect information that Weather Watch Leak Barrier was made with a “high temperature compound” and was “suitable for use with most metal roof applications”. This product is not made with a high temperature compound and it is not suitable for use under any metal roof. The incorrect information was listed on the web site from October 15th -18th 2007 and distributed in hard copy form, October 1st – October 18th 2007.
A Quality Leak Barrier Will:Create a 100% watertight seal that keeps water out at the most vulnerable areas of your roof (at the eaves and rakes, in valleys, around chimneys, etc.).
Weather Watch®, 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
Weather Watch® Mineral-Surfaced Leak Barrier is a key part of the GAF Lifetime Roofing System, and has even earned the prestigious Good Housekeeping Seal.
Don’t Put Your Home At Risk
-
The Codes Are Clear…
Protection against ice dams isrequired 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”. -
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!
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…
Up to a Lifetime ltd. warranty when used on Lifetime Shingle roofs, (See Details) up to a 25-year ltd. warranty when used on non-Lifetime Shingle roofs.
Professional’s Best Choice
-
Helps Eliminate Waste…
Special adhesive allows for one-time repositioning, but aggressively adheres over time
-
Dependable…
Self-seals around nails or metal roofing fasteners
-
Saves Labor…
Dual-side selvedge and split-back release film speed installation for greater homeowner value
- Convenient…
1.5 and 2.0 square roll sizes -
Great For Emergencies…
Can be left exposed for up to 60 days if necessary
Specifications
GAF Weather Watch ® 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)
| Specification | 1.5 Square Roll | 2.0 Square Roll |
| Roll length | 50 ft (15.2 m) | 66.7 ft (20.3 m) |
| Roll width | 36 in (0.9 m) | 36 in (0.9m) |
| Sq. feet per roll | 150 sq ft (13.9 sq m) | 200 sq ft (18.6 sq m) |
Applicable Standards
- ICC-ES Evaluation Report (ESR 1322)
- Meets the performance criteria of ASTM D1970
- Miami-Dade County Approved
- State of Florida Approved
- UL Classified. See complete marking on product
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[wptabtitle]UnderRoof™ 2[/wptabtitle] [wptabcontent]
UnderRoof™ 2 Waterproof Protection Under Tile RoofsBecause Tile Roofs Are Not Watertight, You Need A Self-Adhering Premium Leak Barrier. |
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| To protect against leaks, contractors typically nail one or two layers of “tar paper” to your roof before they install the tile. But “tar paper” doesn’t provide much protection because it’s made with conventional organic felt, which can become saturated with water and reduce its ability to prevent leaks. So even though you pay a large premium for a tile roof, your home — your most valuable asset — is potentially left vulnerable to water damage.UnderRoof™ 2 Waterproof Protection is a specially-designed self-adhering leak barrier for tile roofs.It provides maximum protection from leaks that can result from tile saturation, clogged gutters, wind-driven rain, or (in cold climates) freeze-thaw damage. Made with flexible SBS-modified compound and reinforced with a fiberglass-reinforced polyester core, UnderRoof™ 2 Waterproof Protection applies easily and can be left exposed for up to 180 days, if necessary. The heat-activated adhesive allows the product to be repositionable for ease of installation, but seals tightly once in place, providing a watertight barrier against leaks.
UnderRoof™ 2 Leak Barrier is a key part of the GAF Lifetime Roofing System, and has even earned the prestigious Good Housekeeping Seal. Installation Considerations
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Specifications
Product Specifications (Nominal)
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Applicable Standards
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[wptabtitle]UnderRoof™ HT[/wptabtitle] [wptabcontent]
UnderRoof™ HT High-Temperature Leak BarrierNow, Protect Your Metal, Shingle, Or Tile Roof |
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Whether your installer uses a leak barrier to waterproof just the vulnerable areas of your roof or you upgrade your protection for full deck waterproofing coverage , choosing the wrong product for an application can have disastrous effects.
Different roof coverings have different needs:
- Metal Roofs: Leak barriers for metal roofs require a high-temperature (minimum 250°F) compound—or they may drip or leach residue onto your siding or patio.
- Tile Roofs: Leak barriers for tile roofs should undergo special “stack testing” to be sure loaded tiles don’t slide off the roof during application. Also, if tiles are to be adhered in foam, the leak barrier should be tested to assure compatibility and adhesion.
- Asphalt Shingles: While asphalt shingles are a more forgiving roof covering than tile or metal, isn’t it important to know that the installers working on your home are safer, because the leak barrier they are using has a premium slip-resistant surface?
UnderRoof™ HT leak barrier is a key part of the Lifetime Roofing System, and has even earned the prestigious Good Housekeeping Seal.
Don’t Put Your Home At Risk
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Northern (and now many southern) climates recommend or require…
The use of leak barriers where ice dams are present, or as a secondary roof covering in the event of a catastrophic storm
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Don’t jeopardize your insurance coverage…
Be sure your installer complies with local code requirements- or elect an upgrade to full deck coverage to protect against the unexpected
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Extraordinary protection…
Available for tile and metal roof systems with Blue Diamond Guarantee coverage
Property Owner’s Best Choice
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Versatile…
Performs under metal, tile, and asphalt shingle roof coverings, so no matter what you choose to install, you’re protected!
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Reliable…
Can be exposed for up to 180 days prior to the application of a roof covering when necessary
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Peace Of Mind…
Up to a Lifetime ltd. warranty when used on Lifetime Shingle roofs, (See Details) up to a 25-year ltd. warranty when used on non-Lifetime Shingle roofs, and up to a 10-year ltd. warranty when used with other approved roof coverings. Commercial-grade warranty coverage available under metal and tile as well!
Professional’s Best Choice
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Enhanced Walkability…
Features a specially formulated polyester reinforced mat
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Tough Commercial-Grade Quality…
Acceptable for use in system sales for both residential and commercial applications. High-temperature compound rated to 260°F. UnderRoof™ HT Leak Barrier is an excellent vapor retarder, with a vapor permeance of .05 (based on internal testing)
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Convenient…
One product for almost any roof covering, keep it in your shop ready for the next job
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Dependable…
Seals around nails and exceeds the performance requirements of ASTM D1970, the industry standard for leak barrier performance
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Extremely Durable…
Can be left exposed for up to 180 days when necessary
Specifications
UnderRoof™ HT 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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Note: See application instructions for complete information
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[wptabtitle]StormFlash™[/wptabtitle] [wptabcontent]
StormFlash™ Self-Adhering Flashing – Air & Moisture BarrierProtect Your Home From Wind-Driven Rain And Damaging Ice Dams With A Waterproof Leak Barrier |
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Self-Adhering Flashing – Air & Moisture Barrier Will:
- Eliminate leaks caused by wind-driven rain, ice, and snow build-up
- Stop cold drafts
- Stop wasting energy by sealing around window and door openings, rooftop penetrations, and roof deck joints
Some leaks aren’t detected until serious damage occurs. Protecting the vulnerable areas of your home with the installation of window and door flashing will help avoid the costly effects of dry rot, decay, and mildew.
StormFlash™ self-adhering flashing has earned the prestigious Good Housekeeping Seal, which means that Good Housekeeping stands behind this product. (Refer to Good Housekeeping Magazine for its consumer protection policy.)
Homeowner’s Best Choice
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Professional’s Best Choice
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Specifications
GAF StormFlash™ Flashing – Air & Moisture Barrier Meets the Following Min. 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 & Width | Weight Per Roll | Rolls Per Box |
| 4″ x 36′ (10.2cm x 10.9m) | 2.7 lbs (1.2 kg) | (12 rolls per box) |
| 4″ x 75′ (10.2cm x 22.8m) | 5.3 lbs (2.4 kg) | (9 rolls per box) |
| 6″ x 36′ (15cm x 10.9m) | 4.1 lbs (1.9 kg) | (8 rolls per box) |
| 6″ x 75′ (15.2cm x 22.8m | 8 lbs (3.6 kg) | (6 rolls per box) |
| 9″ x 36′ (22.9cm x 10.9m) | 6.2 lbs (2.8 kg) | (4 rolls per box) |
Applicable Standards
- Meets the performance criteria of ASTM D1970
- State of Florida Approved
- Miami-Dade County Approved
- Good Housekeeping Seal of Approval
- UL Classified. See complete marking on product.
Note: When sealing deck joints in a roofing application, it is particularly important to be sure that the roof assembly/attic is properly ventilated.
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