WinterGuard® Granular waterproofing underlayment helps against water intrusion in your roof's most vulnerable places. WinterGuard Granular is a composite material of asphalt polymers, formed into a rolled sheet. WinterGuard helps to prevent leaks due to wind-driven rain in eaves and valleys.
WinterGuard® Granular waterproofing underlayment helps protect roofs from leaks due to wind-driven rain in eaves and valleys.
Self-adhering underlayment with embedded granules for superior traction during application.
Designed for use on roof decks as a waterproofing barrier beneath shingle, slate and tile roofs.
Maximum exposure of 6 months prior to shingling over.
As a protective barrier, WinterGuard is able to stretch and seal around nails driven through it.
Eligible for lifetime limited warranty when used with CertainTeed Integrity Roof System suite of products.
Meets the Following Requirements: ICC ESR-1492, ASTM D1970, Florida Product Approval # FL 11288, CSA A123.22, Miami-Dade Product Control Approved
UL 790: Classified for use as underlayment beneath Class A, B, or C fire rated shingle systems