Replies

1. 
   FastEddie1 | Sep 23, 2003 03:25am | #1

   That works, since you can nail to the ply.  Or you can glue the oak directly to the slab, if it is engineered wood (aka plywood).

   Do it right, or do it twice.

1. 
   Tim2 | Sep 23, 2003 03:54am | #2

   Is 3/4" ply enough of a subfloor or will it require more?

2. 
   DougU | Sep 23, 2003 04:03am | #3

   ELCID

   Do you need to put a vapor barrier between the slab and the ply? and also between the ply and the oak?

   Doug

1. 
   Tim2 | Sep 23, 2003 04:54am | #5

   I don't know , do I?

2. 
   archyII | Sep 23, 2003 04:13am | #4

   Here is a link to NOFMA  (NOFMA: The Wood Flooring Manufacturers Association)

   http://www.nofma.org/installation2.htm

3. 
   Floorman | Sep 23, 2003 05:56am | #6

   Coldbond mastic skim coated over concrete. Broom 6 mil plastic over skim coat. Apply 1/4 x 1/4 x 1/4 coldbond mastic to plastic. Lay minimum 5/8 CDX into glue. Nail with 1 1/4" concrete nails 10" on center, 1 1/2" nails for 3/4 cdx. Plywood needs to be below 10% moisture content. Stay away from HD. Go to a lumber yard that houses their ply inside. The lower the moisture level the better. Sand plywood joints level, lay out 15 lb. felt and then nail the floor. GW

1. 
   Tim2 | Sep 23, 2003 06:24am | #7

   Thanks Greg