About WeatherWatch® Ice & Water Leak Barrier

WeatherWatch® Mineral-Surfaced Leak Barrier is a key part of the GAF Lifetime Roofing System. It's eligible for a Lifetime Limited Warranty when installed with GAF Lifetime shingles and at least two additional qualifying GAF accessories and may be eligible for residential enhanced warranty coverage1

How does WeatherWatch® Protect your Roof?

By creating an extra layer of protection at certain areas of your asphalt shingle roof (at the eaves and rakes, in valleys and around chimneys, etc.), WeatherWatch® Mineral-Surfaced Leak Barrier helps prevent leaks due to water backing-up in your gutters, wind-driven rain and in the North, damaging ice dams.

  • Code Compliance and Risk Reduction: Many building codes require ice and leak barriers at the eaves in colder Northern climates to help reduce the risk of leaks caused by ice dams. In warmer Southern regions, these products help protect against leaks caused by wind-driven rain.
  • Strong Protection: Helps guard areas of your roof against leaks including eaves and rakes, in valleys, around chimneys and skylights, and more.
  • Dependable: Self-seals around nails to help reduce the risk of leaks.
  • Fiberglass-reinforced: Helps resist buckling and wrinkling that can detract from the look of your finished roof.
  • Split-back Release Film: Peels off in layers for fast installation.
  • Convenient: Available in 1.5 square (150ft.2 [13.9 m2) and 2.0 square (200 ft.2 [18.58 m2]) roll size.


This product can be used to comply with certain FORTIFIED Roof™ requirements. Visit gaf.com/fortified and current FORTIFIED Home™ Standard available at fortifiedhome.org for details. Applicable in the U.S. only.


This product has earned the Good HouseKeeping Seal.


Lifetime refers to the length of warranty coverage provided and means as long as the original individual owner(s) of a single-family detached residence [or the eligible second owner(s)] owns the property where the qualifying GAF products are installed. For other owners/structures, Lifetime coverage is not applicable. Lifetime coverage on shingles requires the use of GAF Lifetime Shingles only. Lifetime coverage on shingles and accessories requires the use of any GAF Lifetime Shingle and any 3 qualifying GAF Accessories. See GAF Roofing System Limited Warranty for complete coverage and restrictions. Visit gaf.com/LRS for qualifying GAF products. For installations not eligible for the GAF Roofing System Limited Warranty, see the GAF Shingle & Accessory Limited Warranty.
1See GAF System Plus, Silver Pledge™ or Golden Pledge® Limited Warranties available at gaf.com/warranties for details.
2Always consult local building codes for specific requirements in your area.

Key Benefits

Help protect your roof from wind-driven rain and damaging ice dams.

3Refer to UL Product iQ for specific assemblies.

GAF residential roofing lifetime limited warranty diamond

Get automatic Lifetime Protection on your entire GAF roofing system

When you install any GAF Lifetime Shingle and at least 3 qualifying GAF accessories, you'll automatically get a Lifetime limited warranty on your shingles and all qualifying GAF accessories*.
*See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions. The word “Lifetime” refers to the length of coverage provided by the GAF Shingle & Accessory Ltd. Warranty , and means as long as the original individual owner(s) of a single-family detached residence [or the second owner(s) in certain circumstances] owns the property where the shingles and accessories are installed. For owners/structures not meeting the above criteria, Lifetime coverage is not applicable. Lifetime ltd. warranty on accessories requires the use of at least three qualifying GAF accessories and the use of Lifetime Shingles.

Product Documentation