I know everyone says put luan down for underlayment for a sheet vinly installation but I have height considerations and it is too thin and I am wondering if I can put down 3/8th pine plywood with a sanded face up instead? Also, what is reccomended to use to attach the underlayment to the subfloor (I would guess screws would be difficult cause the underlayment is soo thing). Thanks for any replies!
Thanks for the reply....I just picked up some of the correct plywood underlayment. Now, do I butt the edges together, or leave a little gap and then, from what I have read, I fill the gap in with floor patch (cause if I leave it there it will show through the vinyl)? But if I am just going to fill the gap with patch one would think it would make just as much sense to just butt it together in the beginning and not worry about any patch.
What is now recommended is that you lightly butt the joints together then sand the joints flush. Problems have occured when patching gaps in vinyl underlayment. When the wood expands it pushes the patch up and shows a definate ridge through your vinyl.