When it comes to finishing or updating an unfinished basement, one of the most important ways to make the space functional is basement insulation. Basement foundation walls are naturally prone to ...

Basement insulation is essential for energy efficiency, comfort, and cost savings. Here, industry experts reveal nine insulation ideas to help maintain a balanced temperature in your basement. By ...

Rigid Foam — Foil-faced ISO rigid foam insulation can be used to insulate basement walls and provide moisture resistance. Fiberglass Batt — Batt doesn't have the sound-reducing quality that ...

Q: I just bought my first house and am about to remodel my basement. The previous owners of the house glued 2-inch-thick foam insulation to the poured concrete walls.

Adding insulation between the wall studs will increase the insulating value of the wall, keeping the finished space more comfortable. Fill the stud bays with batts of R-13 or R-15 insulation.

The rigid-foam insulation method works best if the foundation walls are smooth. If the basement is an old stone foundation, insulation companies can spray expanding foam directly on the rough masonry.

This water on the walls is the needed fuel for mold and mildew growth. When you insulate a basement in order to finish it, you need to account for this water issue.

Once the block walls are prepped, the framing can begin. I’d use a pressure-treated floor plate and build 2-by-4 walls similar in construction to regular interior partition walls.

Rigid foam insulation works best if the foundation walls are smooth. If the basement is an old stone foundation, insulation companies can spray expanding foam directly on the rough masonry.