CertainTeed Roofing WinterGuard HT High Tack Waterproofing Underlayment Roll, 2 Squares, 195 Sq Ft

CertainTeed Roofing WinterGuard HT is a high tack, high temperature waterproofing shingle underlayment supplied as one 2-square roll covering approximately 195 sq ft (3 ft x 65 ft). It installs under asphalt shingles at valleys, eaves and other leak-prone areas and pairs with CertainTeed shingle systems. One roll per sell unit.

Key Features:

• High temp adhesion: High tack / high temperature formulation designed to hold up under hot roof decks.
• Waterproof protection: Waterproofing underlayment that seals around fasteners at vulnerable roof areas.
• 2 squares per roll: One roll covers 195 sq ft, rated coverage of 2 squares per selling unit.
• Code listed: Meets ASTM D1970 and UL 790, with ICC-ES ESR-1492 and Miami-Dade County approval.
• Lifetime warranty: Backed by a CertainTeed limited lifetime warranty.
• Single roll unit: Sold as one roll per box, 54 lb gross weight.

Specifications Table:

Coverage & How Much You Need:

One roll covers 195 sq ft, equal to 2 squares. Size your order by the square footage of valleys, eaves and other waterproofing zones, lapping courses per the manufacturer’s instructions.

Fit and Compatibility:

Designed as a waterproofing underlayment layer beneath asphalt shingle roof systems, including CertainTeed shingle products. Sold as the underlayment roll only; shingles, nails and ice-dam accessories are sold separately.

Frequently Asked Questions (FAQ):

Q: What is included in one unit?
A: One waterproofing underlayment roll covering 195 sq ft (2 squares); one roll per box.

Q: How many rolls do I need?
A: Divide the square footage of the areas to be protected by 195 sq ft per roll and round up, allowing for laps.

Q: Is it code approved?
A: Yes, it meets ASTM D1970 and UL 790, carries ICC-ES ESR-1492 and is Miami-Dade County approved.

Q: What warranty applies?
A: CertainTeed provides a limited lifetime warranty on this underlayment.

Q: Can it be used under any shingles?
A: It is intended as a waterproofing layer under asphalt shingle roofing; follow the shingle manufacturer’s installation instructions.

Q: How heavy is a roll?
A: The roll weighs about 54 lb.

Expert Verdict Reviewed by the SuperArbor Pro Desk

WinterGuard HT is the high-tack version of CertainTeed’s winter underlayment line, chosen for hot climates and steep or re-roofing applications where standard asphalt-cold underlayments can slip or bleed. Run it full-width in valleys, at eaves for ice-dam protection and around penetrations, lapped per the printed instructions. Its ASTM D1970 listing and ESR-1492 report make it straightforward to spec where code officials require documented ice-and-water barriers.

Install on a dry, clean deck following the manufacturer’s instructions and local code; use roof-walk precautions and fall protection when unrolling on sloped decks.

Order the CertainTeed WinterGuard HT 2-square waterproofing underlayment roll for your next roof project.