CertainTeed's waterproofing shingle underlayments are applied under roof shingles during new construction or re-roofing to protect your home’s interior from winter leaks caused by ice dams and wind-driven rain.

We are GAP, we are family owned, and roofing runs in our blood.

Grace Construction Products’ line of roofing underlayment products, including Grace Ice & Water Shield®, Grace Ultra and Grace TRI-FLEX®, extend the life of a roof by protecting against leaks caused by ice dams and wind-driven rain.

Trust Henry for all your roofing needs. Backed by more than 80 years of continuous building product improvements.

For a roof to last, your roofing system must include protection from wind-driven rain.

STINGER offers three ICC-Certified synthetic underlayments - EXO50, EXO35, and EXO25.

TAMKO offers a variety of professional-grade roofing accessories, from cements and sealants to underlayments and ventilation products.

TAMKO® provides a complete line of saturated organic felt roll roofing products for use as shingle underlayments.

Protect roofs from water with DuPont Tyvek® synthetic roofing underlayment, engineered to deliver superior performance.