Installing Plywood over a subfloor
I have researched a lot on this topic but still seem quite confused.
I am installing LVT in my bathroom and I want it done properly so I pulled up the old sheet vinyl and old plywood. I believe it was luan.
There were so many staples left in the subfloor it would have taken me from China and back to pull them all out so I hammered most of them flush to the subfloor and pulled out the rusted ones-25 of them or so.
I am going to install new plywood, not luan, but unsure of what I can use to secure it to the subfloor. I bought 1 1/2 inch deck screws to do this. Are these too long if subfloor is 3/4 inch and plywood is 1/4 inch?
I don't want to go into the joists. I really don't want to staple this plywood and add another 1000 staples to my subfloor.
Also, what type of floor adhesive should I use? I'm reading that I need a specific kind of adhesive that allows for bending? Of the board as it's walked on and not a tight adhesive that can never be removed from the subfloor if I ever decide in 20 years to redo the bathroom floor again.
Should I leave any space between my plywood underlayment to allow for expansion? Any help would be appreciated. I'm finding some information out there but it is 5 years old or more. I just want to do things the right way and not have to spend more time redoing something that wasn't researched.
Last edited by oh'mike; 02-11-2013 at 10:54 PM.
Reason: added spaces