Our APA Rated Sheathing / Underlayment is specifically designed for subflooring, wall, and roof sheathing. It also serves a wide range of other construction and industrial applications.

These panels are manufactured in conformance with APA PRP-108 Performance Standards and Product Standard PS-1 and PS-2.

Product Literature (PDF)

Spec Sheet

SDS Safety Data Sheet

APA Literature


Single Underlayment