Tenant didn't understand concept of shower curtain liner. Pulled up all underlayment to the wood subflooring of this 100 year old house, which is 4 inch wide wood flooring that is finished in the rest of the house. To lay on top of that, my 4'x 8'choices at Home Depot/Lowes seems to be :
1) 3/16" (true) thick Viroli (which I'm guessing is another mfg's name for Luan) @ $102) 3/16" (true) Hardwood Plywood (choice of oak or birch) @ $20
3) 1/4" (true) Plywood (I think it may have said sanded, but neither face seemed as smooth as choice 1 or 2.Are any of these okay?
*Also, Black and Decker book's instructions for plywood underlayment(looks like 1/4" in photo, though they don't say) calls for 1/4" gaps between boards for expansion room. But it also says to then fill those gaps with patching compound (sanding afterwards). Stanley book calls for using penny nails as spacers between boards for what I'm guessing would be about 1/8", and then going back and filling any 1/4" gaps or larger with wood putty. Home Depot's book calls for 1/8" gaps, and then filling them with cement based floor patching compound. Doesn't filling the gaps negate the "expansion room"? Just curious how that works.In another post I have a question about leveling.
Thanks.