GAF WeatherWatch Mineral-Surfaced Leak Barrier, 3 ft x 50 ft Roll (1.5 SQ, 150 Sq. Ft.)
SKU: 7389989823

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

Sale price$74.39 Regular price$82.66
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

GAF WeatherWatch Mineral-Surfaced Leak Barrier, 3 ft x 50 ft Roll (1.5 SQ, 150 Sq. Ft.)GAF WeatherWatch Mineral Surfaced Leak Barrier Roll Self adhered, mineral surfaced leak barrier designed to protect vulnerable roof areas from water intrusion. Fiberglass reinforcement resists wrinkling and buckling, while the membrane self seals around nails and fasteners for dependable leak protection. Key Features: Self Sealing Protection: Membrane self seals around nails and roofing fasteners to help prevent leaks Fiberglass Reinforcement: Helps

GAF WeatherWatch Mineral-Surfaced Leak Barrier Roll

Self-adhered, mineral-surfaced leak barrier designed to protect vulnerable roof areas from water intrusion. Fiberglass reinforcement resists wrinkling and buckling, while the membrane self-seals around nails and fasteners for dependable leak protection.


Key Features:

  • Self-Sealing Protection: Membrane self-seals around nails and roofing fasteners to help prevent leaks
  • Fiberglass Reinforcement: Helps resist wrinkling and buckling for a cleaner, long-lasting look
  • Faster Installation: Split-back release film speeds application on the roof
  • Targeted Defense: Ideal for eaves, rakes, valleys, and around chimneys where leaks commonly start
  • Standards & Approvals: Meets ASTM D1970; ICC-ES ESR-1322; Miami-Dade and Florida Building Code approved; UL Classified

Specifications Table:

Specification Details
Product name WeatherWatch Mineral-Surfaced Leak Barrier
Brand GAF
Roll size 3 ft x 50 ft
Coverage area 150 sq. ft. (1.5 squares)
Unit of measure Roll (RL)
Item weight 65 lb
Style / Category Underlayment
Surface Mineral-surfaced
Reinforcement Fiberglass reinforcement
Key features Self-seals around nails and fasteners; split-back release film for easier installation
Applicable standards / approvals ASTM D1970; ICC-ES ESR-1322; Miami-Dade County Approved; Florida Building Code Approved; UL Classified
Manufacturer number 912000
Product number GAFWW50

Frequently Asked Questions (FAQ):

Q: What is the roll size and coverage?
A: Each roll is 3 ft x 50 ft, covering 150 sq. ft. (1.5 squares).


Q: Where should this leak barrier be installed?
A: Use at roof eaves and rakes, in valleys, and around penetrations like chimneys and vents—areas most prone to water intrusion.


Q: Can it be used under metal or shingle roofs?
A: Yes. It self-seals around nails or metal roofing fasteners to help avoid leaks.


Q: Does it comply with building standards?
A: Yes, it meets ASTM D1970 and holds ICC-ES ESR-1322, Miami-Dade, Florida Building Code approvals, and is UL Classified.


Q: How does it help with ice dams and wind-driven rain?
A: It creates a waterproof barrier that helps prevent leaks from water damming, wind-driven rain, and ice dams in colder climates.


A Sleek Shield Beneath the Surface

This mineral-surfaced barrier quietly elevates the envelope of your home, delivering a refined layer of security where design meets performance. The fiberglass-reinforced sheet lies smooth and disciplined, resisting wrinkles that can telegraph through the roof. Pair it with dark architectural shingles to create a seamless, high-contrast foundation that feels intentional from edge to ridge. It’s a discreet essential—luxury you don’t see, but absolutely feel in the integrity of the space.


Protect your roof’s most vulnerable areas—choose WeatherWatch today for fast, reliable, code-approved leak defense.

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7389989823

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 1078 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jesse Simpson
Alexandria, US
★★★★★ 4
Decent Kit
It's a pretty decent kit. Comes with all the lower unit options whether yours needs that particular part or not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025
E
Verified Purchase
Eli
Houston, US
★★★★★ 5
Alpha one gen I
Good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
H
Verified Purchase
Hank
West Palm Beach, US
★★★★★ 5
Quality for the price
All necessary parts good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
quality
prefect fit, best pricing over local outlets wanting twice as much
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 3
Ok
Not bad not great. Quality feels cheap.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025

recommand products