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Weather Watch XT Product Information |
Weather Watch XT Instructions, Data Sheets, Codes |
Weather Watch® XT Leak Barrier
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 leak barrier is a key part of the GAF-Elk Smart Choice® Roof System Solution.
Don’t Put Your Home At Risk
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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
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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!
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 leak barrier MUST be used
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Peace Of Mind...
Benefits from the same warranty term as the asphalt shingle it is applied under, up to a maximum of 30 yrs (see warranty for complete details)
Professional’s Best Choice
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Dependable...
Self-seals around nails or metal
roofing fasteners -
Safer...
Specially coated surface with added tack for extra traction under foot
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Saves Labor...
Dual side selvedge 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 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-Elk 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)
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| 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
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
