Insulating above slab
jbrys
| Posted in General Questions on
Hello,
I am currently adding R10 SilvrBoard – a high compression version above the slab. It will have two inches and then 2 layers of 1/2inch OSB on top of that.
Structural walls will go to cement. Non-load bearing will sit above – correct?
Question is about drain holes and what not in the mechanical room – do we just continue with placing down in the mechanical room and extend those up?
Thanks in advance,
Jarryd
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Replies
Jarryd, as long as the concrete slab is flat, you can frame partition walls (non-load-bearing) on top of the foam. Higher density foam is even ok under load-bearing walls.
Yes, just extend your utility penetrations up far enough to make them accessible, and cut the foam around them.