On average, DIY spray foam insulation ... tape or plastic to prep your space so that you don’t accidentally spray foam on an area you are not trying to insulate. You may also have to buy extra ...

Just tape all overlaps well so no vapor can escape into the crawl space. Once the vapor barrier is in place, you can add insulation in between the floor joists. Avoid the temptation to use ...

Q: The slate floor over my crawl space is ice cold because there is no insulation. How do I fix the problem? A: A traditional crawl space consists of soil or sand — essentially what was the ...