Quote Originally Posted by mike N.Y.C View Post
I am installing a composite deck (trex) on top of a garage with a flat roof. I am looking for a way to fasten the 1x4 pressure treated wood which I'm using as sleepers to the roof top without puncturing the roof.

Thank you,

Mike NYC
I saw an episode of Hometime where they did this on Miriam's flat roof. They didn't fasten the sleepers down at all. They rested them on an extra piece of roofing.