Chris,
My outside is 13 mil! I have some completely clear 4-mil vinyl that has lasted two winters plus a summer on a window. It's similar to this. For $16 US it is well worth the cost. Last spring, I tried to build a cold frame and had some 2-mil plastic laying around - it ripped in a couple of months but it did span 8 ft.
Mike
My outside is 13 mil! I have some completely clear 4-mil vinyl that has lasted two winters plus a summer on a window. It's similar to this. For $16 US it is well worth the cost. Last spring, I tried to build a cold frame and had some 2-mil plastic laying around - it ripped in a couple of months but it did span 8 ft.
Mike