In contrast, spray-foam insulation has an R-value of 3.7 per inch for open cell and 6.2 per inch for closed cell. The closed cell type can easily achieve an R-49 at only 8 inches thick, which is a ...

DIY spray foam insulation costs depend on type and quantity. This guide breaks down the cost of closed-cell foam kits, ranging from $40 to $500 based on size.

Spray foam insulation is useful as it can be sprayed straight onto the ceiling of a pitched attic, expanding to fit into every small gap to minimize heat loss and gain.

Adding spray foam insulation is one of the most effective ways to make a home more energy-efficient and comfortable. DIYers and pros can spray this insulation between studs, rafters and other ...

Q - I have found on the internet a place that will sell me everything I need to spray foam insulation into my attic. I hear you talk about how spray in foam is the way to go.

Ross insulates an attic; Richard talks irrigation repairs; Mark paves a parking spot. Ross Trethewey helps a homeowner dealing with ice dams decide whether to insulate from his attic roof rafters ...

Q. I have an attic that was just remediated for vermiculite insulation. It is wide open. A company said I should insulate the roof rafters instead of the joists (the floor) and board up the ridge ...

Adding insulation to a typical home’s attic, flooring, basement, and crawl spaces can lower total energy costs by an average of 11 percent if you also plug unwanted air leaks.

5. Fiberglass insulation will absorb and hold moisture. Open cell foam absorbs and holds moisture. Closed cell foam is water resistant. 6. Open-cell spray foam can serve as an air barrier if ...