SKU: 39810311457

GAF WeatherWatch Mineral-Surfaced Leak Barrier, 3 ft x 50 ft Roll (1.5 SQ, 150 Sq. Ft. Coverage)

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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

GAF WeatherWatch Mineral-Surfaced Leak Barrier, 3 ft x 50 ft Roll (1.5 SQ, 150 Sq. Ft. Coverage)Mineral surfaced self sealing roof leak barrier roll GAF WeatherWatch is a fiberglass reinforced, mineral surfaced leak barrier designed for critical roof areas like eaves, valleys, and around penetrations. The self adhering membrane seals around nails and fasteners to help prevent leaks from ice dams and wind driven rain while its split back release film speeds installation. Key Features: Self Sealing Protection: Seals around nails and metal

Mineral-surfaced self-sealing roof leak barrier roll

GAF WeatherWatch is a fiberglass-reinforced, mineral-surfaced leak barrier designed for critical roof areas like eaves, valleys, and around penetrations. The self-adhering membrane seals around nails and fasteners to help prevent leaks from ice dams and wind-driven rain while its split-back release film speeds installation.


Key Features:

  • Self-Sealing Protection: Seals around nails and metal fasteners to help stop leaks from ice dams and wind-driven rain.
  • Fiberglass-Reinforced: Resists wrinkling and buckling for a cleaner look and durable performance.
  • Quick Installation: Split-back release film enables faster, easier placement.
  • Code-Compliant Confidence: Meets ASTM D1970; ICC-ES ESR-1322; Miami-Dade and Florida Building Code approvals; UL Classified.
  • Ideal Coverage: 3 ft x 50 ft roll covers 150 sq. ft. (1.5 SQ) for eaves, rakes, valleys, and around chimneys.

Specifications Table:

Specification Details
Product name WeatherWatch Mineral-Surfaced Leak Barrier
Brand GAF
SKU 10132
Manufacturer number 912000
Product number GAFWW50
Style Underlayment / Leak Barrier
Roll dimensions 3 ft x 50 ft
Coverage 150 sq. ft. (1.5 squares)
Unit of measure Roll (RL)
Item weight 65 lb
Packaging 1.5 SQ. Roll
Reinforcement Fiberglass-reinforced, mineral-surfaced
Self-sealing Yes—around nails and metal roofing fasteners
Installation aid Split-back release film
Applicable standards/approvals ASTM D1970; ICC-ES ESR-1322; Miami-Dade County Approved; Florida Building Code Approved; UL Classified

Frequently Asked Questions (FAQ):

Q: Where should this leak barrier be installed?
A: Use it at vulnerable roof areas such as eaves and rakes, in valleys, and around chimneys, skylights, and other penetrations.


Q: Does it seal around nails?
A: Yes, the self-adhering membrane self-seals around nails and roofing fasteners to help prevent leaks.


Q: What are the roll dimensions and coverage?
A: Each roll is 3 ft x 50 ft and covers approximately 150 sq. ft. (1.5 squares).


Q: Is it approved to common building standards?
A: Yes—ASTM D1970, ICC-ES ESR-1322, Miami-Dade and Florida Building Code approved, and UL Classified.


Q: Can it be installed quickly?
A: The split-back release film is designed to speed installation and simplify handling.


A Sleek, Armor-Like Underlay for Weatherproof Elegance

This mineral-surfaced barrier creates a refined, tailored foundation that safeguards the architecture while disappearing beneath your finish roof. I love the fiberglass-reinforced body—it lays smooth and resists buckling, giving shingles their most polished debut. Wrap eaves and valleys with crisp precision for a flawless silhouette that stands up to the fiercest weather. It’s an essential layer of luxury and longevity for any elevated exterior.


Protect your roof’s most vulnerable areas with GAF WeatherWatch—add this roll to your project for fast, code-compliant leak defense that lasts.

Installation

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 39810311457

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4.5 ★★★★★
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Verified Purchase
Brandon Morrison
Pawtucket, US
★★★★★ 4
Would recommend for casual show.
Color: 8405-Blue
It is very nice, I have many watches, but this one is the main one I use for casual wear. One thing I do not like: After about two days of either use or not use, the time gets off, by a couple hours but you can put it back pretty easily. And the "day display" on the watch never stays correct due to the fact that every month doesn't have 31 days in it. But other than that, it is a great watch for show, not to keep track of time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
S
Verified Purchase
Sterling Churgin
Whiting, US
★★★★★ 5
Money Well Spent
Color: Silver Face Brown Band-G8408
I love this little watch, I can count on it every time one of my $10,000 watches stops working. The thing just sits in the drawer and waits for me, I was going to give it to a small child as a gift. I changed my mind only because it's good to know I have a dependable watch somewhere. I guess I'll have to pay attention to the battery at some point but I will change the battery and not just toss the watch..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
E
Verified Purchase
ENRIQUE Q.
Belleville, US
★★★★★ 5
Watch
Color: 8405-White
Watch looks great. The watch works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
K
Verified Purchase
Kindle Customer
Boise, US
★★★★★ 5
The printing is too small
Color: 8405-Blue
I’m unable to see the instructions or set the eatch
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Reviewed in the United States on April 26, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 4
A little disappointed.
Color: Silver Face Brown Band-G8408
The watch looks good but it stops running at times and if I move it around it starts back up. Been running okay for over a week now. Band is not as nice as it looks in the pictures, cheap looking. Will work for now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026

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