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renovational

What to Use for Sleepers under a porch floor

Renovational
10 years ago

Hey Everyone, New to this forum. Am a contractor in Michigan, and learned a great deal from posters here on covered porch construction. This is the first covered porch I have renovated. I am installing a sloped frame, with a rubber roof on top of T & G sheeting, and planning on putting down sleepers covered with Azek T & G porch flooring. My concern is, if I use treated sleepers, if one of them decides to warp like crazy, will the constant upwards pressure on a plastic floor cause it to eventually lift? I can see where a traditional wood floor would resist the sleeper warping, but not sure if the PVC flooring would allow it to warp and just reform itself over time. On the other hand, if treated is dried slow and out of the sun, will it not warp?