These quality leak barriers from GAF help prevent wind-driven rain from leaking through the roof deck, or melting ice and snow (caused by ice dams in harsh winter climates) from leaking into property’s interior.

Grace Construction Products offers a complete line of products and systems that help protect the building envelope from air, vapor and moisture infiltration.

Grace combines innovative technologies and time-tested products to provide reliable waterproofing solutions for virtually all above grade and below grade applications.

VYCOR®, a fully-adhered weather barrier and flashing system, represents the best solution for a house's longevity.

Self-adhered window, door and deck flashings from Grace Construction Products provide the highest level of protection against water, air and moisture intrusion.

Grip-Rite weather barriers are the answer for both residential, and multi-family/commercial applications. Available in two styles, Grip-Rite Weather Carriers are ICC-ES evaluated and meet or exceed AC-38 Acceptance Criteria for Weather Resistive Barriers.

HomeGuard housewrap excels in air and water resistance, moisture vapor permeability and durability. HomeGuard housewrap is an engineered, woven, polyolefin material designed for use as a secondary weather resistive barrier.

LeakBarrier Door and Window Tape, ValleyFlash and Asphalt Organic Base Sheets help prevent water, air and moisture leaks.

The range of DuPont™ Tyvek® flashing products are durable, tough, tear-resistant and deliver superior protection from water damage and perform through extreme temperatures (they can even handle prolonged exposure to UV light).

Engineered specifically to meet the needs of the commercial construction marketplace, the DuPont™ Tyvek® Fluid Applied WB System delivers convenience of fast, pressure rolled or sprayed application.

With over 25 years of proven performance on millions of homes, DuPont™ Tyvek® weather barriers play an integral role in the world’s leading home and commercial weatherization solutions.