When you insulate a basement in order to finish it ... You want the foam to cover the foundation wall from the top of the floor slab all the way to the very top of the foundation wall.

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. It’s got an aluminum foil ...

Cut rigid foam insulation ... insects enter your basement!) Call your local building inspections department before you begin this project. The inspector may require you to cover the new insulation ...

Not to be confused with a vapor barrier—which is placed on the warm side of the wall just in front of the insulation and behind the drywall— a moisture barrier goes against the basement wall ...