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home > GAF Shingle-Mate Roof Deck Protection Felt Underlayment, 36 in x 144 ft, 400 sq ft Coverage > GAF Shingle-Mate Roof Deck Protection Felt Underlayment, 36 in x 144 ft, 400 sq ft Coverage
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GAF Shingle-Mate Roof Deck Protection Felt Underlayment, 36 in x 144 ft, 400 sq ft CoverageGAF Shingle Mate Felt Roof Underlayment, 400 sq ft GAF Shingle Mate is a fiberglass reinforced felt roof underlayment that helps protect the roof deck from moisture infiltration. Sized at 36 inches by 144 feet, it covers 400 sq ft and supports asphalt shingles with a flatter, more uniform finish. Key Features: Moisture Defense: Helps prevent wind driven rain from infiltrating under shingles Reinforced Stability: Fiberglass reinforcement resists
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GAF Shingle-Mate Felt Roof Underlayment, 400 sq ft

GAF Shingle-Mate is a fiberglass-reinforced felt roof underlayment that helps protect the roof deck from moisture infiltration. Sized at 36 inches by 144 feet, it covers 400 sq ft and supports asphalt shingles with a flatter, more uniform finish.


Key Features:

  • Moisture Defense: Helps prevent wind-driven rain from infiltrating under shingles
  • Reinforced Stability: Fiberglass reinforcement resists buckling and wrinkling
  • Better Shingle Finish: Promotes flat, uniform shingle appearance for a professional look
  • Lightweight Handling: Easier to carry and install than typical #30 asphalt felts
  • Proven Coverage: 36 in x 144 ft roll provides 400 sq ft of roof deck protection

Specifications Table:

Specification Details
Series Name Shingle-Mate
Type Roof deck protection
Material Felt
Application Method Nail
Underlayment Grade #30
Coverage Area (Sq. Feet) 400
Length (Feet) 144
Weight (lbs.) 36
Width (Inches) 36
CA Residents: Prop 65 Warning(s) No
Warranty Limited lifetime
For Use with Asphalt Shingles Yes
For Use with Metal Roofing No
For Use with Wood Shakes No
For Use with Flat Roofing No
UNSPSC 30151500

Frequently Asked Questions (FAQ):

Q: What roofing types is this underlayment compatible with?
A: It is designed for use under asphalt shingles; it is not intended for metal roofing, wood shakes, or flat roofing.


Q: How is Shingle-Mate installed?
A: Apply to the roof deck and fasten with nails per local code and manufacturer instructions.


Q: What is the roll size and coverage?
A: Each roll is 36 inches wide by 144 feet long, providing 400 square feet of coverage.


Q: Does it have a warranty?
A: Yes, it carries a limited lifetime warranty when used as part of the GAF Roofing System; see GAF warranty for details.


Q: Is it heavy to handle on the roof?
A: No, it is lighter and easier to handle than typical #30 asphalt felts.


A Sleek, Seamless Foundation for a Polished Roofline

Shingle-Mate lays down a refined, uniform base that elevates the look of any asphalt-shingle roof. Its fiberglass reinforcement keeps surfaces smooth and wrinkle-free, setting the stage for crisp lines and a clean silhouette. Pair it with rich, dimensional shingles to create a cohesive, high-impact exterior. Consider it the quiet essential that brings a luxe, finished feel to your home’s curb appeal.


Choose GAF Shingle-Mate to shield your roof deck and achieve a smoother, more professional shingle finish.

GAF Shingle-Mate Roof Deck Protection Felt Underlayment, 36 in x 144 ft, 400 sq ft Coverage

Item no : 5517421834
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US$ 90.26
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