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.

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

The 100% Polypropylene synthetic underlayment offers a strong, secure, and safe alternative to conventional roof underlayments.

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.