Quote:
Originally Posted by nat_ster
You need sheet metal in between. Minimum 16 ga, glued down with a contact cement that won't eat the Styrofoam.
Then glue the vinyl plank flooring right to it.
Use galvanized steel so you don't have to paint or worry about rust.
|
Ah hah. I kind of like this. I've been looking for some alternative to plywood and two by fours as subflooring.
I wonder what kind of insulation it would take to stand up to the weight as long as the load above it was distributed by sheet metal?
Though, if enough moisture to rot plywood is going to work its way under the floor, then it kind of seems like a steel underlayer would just rust regardless of if it's galvanized or not. Perhaps it's the issue of wood absorbing and holding the moisture that causes the majority of the problem? But if it didn't go into the wood... where would it go? Are we doomed to just have weird puddles of gross, stagnant water eating away at our subflooring?