Homasote EasyPly Roof Decking is designed for use as a structural, load-bearing decking in residential and non-residential buildings, room additions, A-frames and log homes for exposed beam construction, and for high-performance schools and offices where daylighting is designed into the structure. EasyPly comes with a 6 mil pre-finished surface of a decorative white "flitter" vinyl film. It is not recommended for use over swimming pools or similar areas. Finished T&G on long edges and square on ends.