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WeatherWatch 36 in. x 50 ft., 150 sq. ft. Mineral-Surfaced Peel and Stick Roof Leak Barrier Roll

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  • Self-adhering leak barrier keeps water out at vulnerable areas
  • Split-back release & self-seal around nails helps save time&labor
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Product Details

WeatherWatch® Mineral-Surfaced Leak Barrier is a key part of the GAF Lifetime Roofing System.1 It’s eligible for Lifetime limited warranty when used on Lifetime Shingle roofs1 and it’s an eligible component of GAF residential enhanced warranties. How does WeatherWatch® Protect your Roof? By Creating a barrier at the most vulnerable areas of your asphalt shingle (at the eaves and rakes, in valleys, & 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. It will also help protect your home from expensive wall and ceiling staining from leaks.
  • Code Compliance and Risk Reduction: Protection against ice dams is required by most building codes2 at eaves wherever the January average temperature is 25°F (-4°C) or lower or where there is a possibility of ice forming in the eaves — i.e., the area labeled “North”. In Southern/warmer climates, leak barriers provide critical protection against wind-driven rain.
  • Strong Protection: Guards vulnerable areas of your roofing including eaves and rakes, in valleys, around chimneys and skylights, and more.
  • Dependable: Self-seals around nails to help avoid 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.

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Coverage Area (sq. ft.)150 sq ftProduct Thickness (in.)0.05 in
Product Width (in.)36 inUnrolled length (ft.)50


Application MethodNail, Peel & StickColor FamilyBlack
FeaturesIce and Water ShieldFire Rating (UL 790)Class A
MaterialAsphaltProduct Weight (lb.)64 lb
Returnable90-DayRoofing Product TypeUnderlayment
Squares (100sq. Ft)/Roll1.5Surface RecommendedConcrete Roofs, Metal, Wood
TextureGranulatedUnderlayment/Barrier TypeLeak Barrier

Warranty / Certifications

Manufacturer WarrantyVaries by Application - See Warranty

Questions & Answers

Q:Can this be used under metal cladding that is raised 1.5 above the roof application?
by|Nov 13, 2023
1 Answer
Answer This Question

A:  Hello, we recommend GAF StormGuard for use in that application to ensure no issues with temperature stability. Thank you

by|Nov 13, 2023
    Q:Is this an Ice and Water Shield?
    by|Nov 11, 2023
    1 Answer
    Answer This Question

    A:  Hello, yes, WeatherWatch is a self-adhering underlayment used to protect against ice dams and wind-driven rain at the eave, valleys, around penetrations and other areas. Thank you

    by|Nov 13, 2023
      Q:what is the color on both sides?
      by|Oct 27, 2023
      1 Answer
      Answer This Question

      A:  Thank you for your question. The top is black mineral , bottom is black asphalt with white release tape.

      by|Nov 8, 2023
        Q:Can this product be used on a (pressure treated plywood) wheelchair ramp, in order to provide an anti slip surface? The Contractor that built ramp used rolled roofing, nailed it down and is now coming apart and breaking in many areas.
        by|Oct 12, 2023
        1 Answer
        Answer This Question

        A:  Thank you for the inquiry. This product is meant to be used as a leak barrier under asphalt shingles. It has a 60 day UV exposure rating and is not meant to be left exposed to ensure product integrity. If you have any further application questions please reach out to our technical service team at 1-800-GAF -ROOF.

        by|Oct 16, 2023
          Showing 1-4 of 118

          Customer Reviews

          4.4 out of 5
          • 4.4
            out of 257 reviews
          • 78% recommend this product
          Filter by:
          Showing 1-10 of 257 reviews
          Material was easy to work with did a wonderful job
            Do not buy
            This is garbage....installed and the very next day it was not attached in spots, installed over brand new decking...and yes, was installed properly!! I have experience roofing for almost 30 years now...never had this problem before!!!
            Response from GAFProductExpertSep 23, 2022
            Hello, please give our technical team a call at 877-GAF-ROOF, as this is not typical. Thank you gaf
              1 found this review helpful
              Works pretty great, sticks to wood substrate and drip edge well, has a bit more trouble sticking ...
              Works pretty great, sticks to wood substrate and drip edge well, has a bit more trouble sticking to Feltbuster or other deck protection when you overlap it at the rake ends. It's pretty slick once installed so be careful walking on it. The asphalt granules also come off much easier than I thought they would so try not to spend too much time on it. This may be normal since this is a mineral-surfaced ice and water shield rather than a poly or film-surfaced one. This is my first roof replacement so I wouldn't know if it is normal, it just surprised me how easily some areas wore out.
                • Recommended
                3 found this review helpful
                            Easy to apply! Very happy with it.
                              Showing 1-10 of 257 reviews

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