Owens Corning ProArmor 1001 Sq. ft. Synthetic Roof Underlayment Roll

ProArmor Synthetic Roof Underlayment with Fusion Back Coating Technology is strong, durable and repels water. It’s also light, easy to install and contributes to safe working conditions. In addition to its unparalleled quality and performance, ProArmor Underlayment offers the following features and benefits.For use under asphalt shingles onlyRepels moisture and helps provide protection against water infiltrationResists stretching and tearing around fasteners