Medium Weight Kraft Saturated with Asphalt

Blue Shield Grade AS is a single ply saturated asphalt underlayment paper that controls moisture between wood or tile flooring and the subfloor.

Width: 36” Put Up: 100 rolls per pallet
Length: 144’ Roll Weight: 15 lbs

Meets Federal Specifications UU-B-790A, Type 1, Grade D, Style 2, water vapor permeable.

When Blue Shield Grade AS is used as an underlayment for wood or tile flooring it offers multiple benefits:

Moisture Protection

Grade AS is a semipermeable barrier paper. It allows for moisture to slowly transfer to and from the flooring. Helping to control moisture transmission, AS can mitigate the chances for the flooring to buckle, warp or crack due to drastic changes in moisture.

Slip Layer

Grade AS provides separation between the sub-floor and the finished flooring. This separation reduces the noise associated with poorly installed wood flooring.

Get A Quote