Foam, not fiberglass, is the right choice
Joist bays — the open spaces between floor joists — are prime hosts for insulation. When the basement or crawl space has vents installed, insulating joist bays. to the rim joist, which runs along the perimeter of the home and on top of the .
Keep chilly drafts out by installing insulation between your floor joists. Read this Q&A to learn two ways to insulate your floors from the pros at This Old House.
EcoFoil's floor joist insulation is pre-cut to common widths with staple tabs for easy. are looking to add insulation between joists, or directly over the top of joists, .