CertainTeed Roofing WinterGuard Granular Waterproofing Shingle Underlayment, 2 SQ Roll, 3' x 65' (195 sq ft)WinterGuard Granular Waterproofing Shingle Underlayment, 2 SQ Roll Self adhering, granular waterproofing underlayment engineered to stop water intrusion at roof eaves, valleys, and other vulnerable areas. Made from vapor tight asphalt polymers that stretch and seal around fasteners for a durable, long lasting barrier. Key Features: Self Adhered Waterproofing: Asphalt polymer composite forms a vapor tight, elastic seal that self seals around nails.

WinterGuard Granular Waterproofing Shingle Underlayment, 2 SQ Roll

Self-adhering, granular waterproofing underlayment engineered to stop water intrusion at roof eaves, valleys, and other vulnerable areas. Made from vapor-tight asphalt polymers that stretch and seal around fasteners for a durable, long-lasting barrier.

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Key Features:

• Self-Adhered Waterproofing: Asphalt-polymer composite forms a vapor-tight, elastic seal that self-seals around nails.
• Granular Surface: Provides traction and durability for easier installation and service life.
• Cold-Weather Defense: Designed for eaves and valleys to combat ice dams and wind-driven rain.
• Generous Coverage: 3' x 65' roll covers 195 sq ft (2 squares) for efficient roof prep.
• Code-Compliant: Meets ASTM D1970; Miami-Dade and Florida approvals; UL 790 classified under Class A/B/C systems; ICC ESR-1492; CSA A123.22.

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Specifications Table:

Specification	Details
Style	Underlayment
Product type	Waterproofing shingle underlayment
Surface	Granular
Coverage	195 sq ft per roll (2 squares)
Roll dimensions	3 ft x 65 ft
Length	65 ft
Width	3 ft (36 in)
Thickness	60 mil (1.5 mm)
Weight	72 lb per roll
Material	Asphalt polymer composite
Standards/Approvals	ICC ESR-1492; Miami-Dade County Approved; UL 790 classified beneath Class A/B/C systems; ASTM D1970; Florida Product Approval FL 11288; CSA A123.22
Warranty	Lifetime Limited Warranty
Manufacturer number	WGG
Product number	CTRWGG2

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Frequently Asked Questions (FAQ):

Q: Is this product self-adhering?
A: Yes, it is a self-adhered underlayment with an asphalt-polymer adhesive that bonds to the deck and self-seals around fasteners.

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Q: What is the roll size and coverage?
A: Each roll is 3 feet wide by 65 feet long and covers 195 square feet (2 squares).

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Q: Where should I install WinterGuard?
A: Install at roof eaves, valleys, dormers, and other leak-prone areas; extend at least 24 inches past the interior wall line at the eave where required.

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Q: What warranties apply?
A: Product lists a Lifetime Limited Warranty; see manufacturer documentation for terms and conditions.

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Q: Is it approved for use under fire-rated shingle systems?
A: Yes, it is UL 790 classified for use beneath Class A, B, or C fire-rated shingle systems.

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A Seamless Shield for Elegant Rooflines

WinterGuard wraps the roof in a sleek, protective layer that preserves the clean geometry of eaves and valleys. Its granular finish adds a refined texture while the self-sealing technology keeps the envelope pristine through harsh seasons. Pair it with architectural shingles to accentuate shadow lines and ensure a crisp silhouette. This underlayment is a quiet essential for luxurious, weather-resilient living.

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Protect your roof’s most vulnerable areas—choose WinterGuard Granular for reliable, code-compliant waterproofing that lasts.