Foam board or spray foam also is the best way to insulate the long rim joists on the outside of the foundation or second-floor area. It is difficult to secure and seal a long piece of fiberglass ...

Wall and Cavity Foam with Wide Spray Applicator features a low GWP ... large surface area applications such as wall cavities, rim joists, attics and more. Its 8-ft. hose is for hard-to-reach ...

with expanding foam sealant. 19 Tips for Finishing Basements Use a box cutter to cut the insulation to length. Properly insulating and air-sealing rim joists (band joists) takes patience ...