My 2 years old house's unfinished basement insulation is the R12 rolled batt style that extends all the way down the walls secured with vapor barrier plastic.
Can I put up the frame 3 inches offset from the insulated wall?
Yes you could, to save money but there is a better way.
Just remember its all done to minimum code. Also the fiberglass insulation is installed directly to the concrete block/concrete foundation. This is going to be a place to grow mold.
Yes you can do that. But please note that it would be basic minimum code. And if you want to avoid potential mold issues as well as having a comfortable and warm basement I would do the following:
1. Remove all the vapour barrier from the sill plate (wood plate sitting on your foundation) down. Remove the builders fiberglass insulation and tar paper or backing paper.
2. Install foam board insulation R-10. (glue it with the proper glue directly to the foundation).
Seal all the joins with tuck tape
3. Then I would frame all my outside walls. Remember to use blue board for all your base plates. Run all of your electrical and phone, cable etc.
4. I would then install R-15 to R-20 within the new studs. And apply your vapour barrier at this point. Then drywall.
5. On the floors I would install Dri Core or a similar product befor laminate or carpet.
Hope this helps.
Yes, definitely, you can put up the frame.
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