Any problems associated with having 1/2″ plywood for engineered stone on top of 1X4 furring strips/foam?
Matt70
| Posted in Green Building Techniques on
Currently have 2X4 stud wall with cedar siding on OSB/plywood in zone 4A. Planned to remove cedar lap siding, wrap house sheathing. Install 4″ rigid foam. Use either 1X4 furring strips over properly sealed foam or 3/4″ thick furring strips cut from treated plywood. Then install treated 1/2″ plywood for lath and scratch coat, then installing engineered stone. And sealing stone/mortar.
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Replies
Matt,
As long as your furring-strip fasteners can handle the weight of the engineered stone, you should be OK. More information here: Fastening Furring Strips to a Foam-Sheathed Wall.
Thanks! Just wanted to be sure not to create issues.
What about using cement board instead of plywood, just where the engineered stone goes?
Cement board is interesting. Just wonder if that would greatly increase the weight load on furring strips/fasteners? I'm unsure of the weight difference between two products.
Well considering the lath and scratch coat, cement board may be lighter. I've never laid engineered stone before, so I'm a newb.