Questions tagged [basement-insulation]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
23 views

Can I install rigid foam board over vapor barrier that is attached to basement wall?

I recently had my basement waterproofed and a vapor barrier similar to the one in the picture was installed, except our has a dimpled flange at the bottom. We are also getting ready to finish our ...
1
vote
2answers
83 views

Two openings from inside basement to outside and not sure of the purpose

My basement has two vents from inside to outside. Both are set in-between the main floor joists (see pic) and opens outside, with flaps that opens outwards. The ducts are outside the furnace room. I ...
0
votes
1answer
39 views

Any issues with insulating exterior 2x4 walls with rock wool, then cover with XPS and drywall?

I am finishing the above-ground basement in my 1950's house, which has 2x4 framing, 16" o.c. I want to insulate as much as possible without breaking the bank (i.e. sprayfoam is out of the ...
1
vote
1answer
42 views

Must we install a “moisture, not vapor” barrier, room-side, on an insulated above-grade portion of an exterior basement wall [closed]

Must we install a "moisture, not vapor" barrier, room-side, on an insulated above-grade portion of an exterior basement wall Can we forgo installing any " moisture, not vapor, " ...
1
vote
1answer
98 views

Faced or Unfaced Fiberglass in a basement stud cavity that has IPS Foil Board?

Insulating in Zone 5. Basement is 90% below grade, maybe 8" to 12" exposed foundation around the top of the basement wall. Applying R-6 Foil Faced Poly Iso to the poured concrete wall, then ...