Latest Discussions : Flooring & Stairs


11:50AM | 05/02/17
We're renovating a bathroom in an older home where the prior 1/2" subfloor was significantly water damaged/degraded. We removed the old floor but have a small <1 inch rim around the perimeter where it was difficult to cut flush with existing walls/framing. Once the subfloor is in we're planning to install tile over a cement board underlayment. The underlying joists are in good condition.
The problem is that to replace the subfloor (using plywood) I'm not sure what thickness/layering to use. Most recommendations call for 5/8" plywood as base subfloor layer, but if I use 5/8" there will be a discrepancy in height where the new subfloor meets the "old" subfloor around the edges.
Can I install an initial layer of 1/2" plywood subfloor that matches up with the old height (with adhesive and deck screws into joists) then a second layer of 1/2" plywood (perpendicular direction/offset, no adhesive, glued into the first layer but not the joists)? Would the strength/stability of the dual layers be adequate?

Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button


Post new button or Login button