Foam And Batt Insulation

Yes foam board insulation is an excellent complement to batt insulation.

Foam and batt insulation.

Foam board insulation can add insulation and eliminate thermal bridging when used in wall and ceiling assemblies insulated with batts. Spray foam insulation price starts at about 0 60 or 60 cents per board foot for diy open cell spf with a top cost of about 80 cents. Here is a study done by the nahb air sealing. It can help improve thermal performance but it does come with some difficulties.

Spray foam can be used almost anywhere in the home including exterior walls ceilings floors attics and basements. Flash and batt is a hybrid insulation approach combining fiberglass insulation and closed cell spray foam. Foam board insulation is a great alternative to the very common fiberglass batt insulation that is in most of our homes. When you use foam it green closed cell spray foam for the first 50 of the r value and then use fiberglass or another low cost insulation to get the air barrier and high starting r value and then add in more r value.

It has a higher r value per inch of thickness it s resistant to moisture and is easy to work with. Here are four reasons flash and batt can be a great insulation option. Batt fiberglass has been used more extensively than spray foam throughout history and it still holds up as one of the most affordable and reliable options. Two inches of closed cell foam in a 2 inch by 4 inch wall can increase the racking strength more than 200.

Fiberglass devoured the insulation industry in the 1970s for obvious reasons. It can potentially replace the vapor barrier and house wrap as well. Some people can use just 1 inch of foam it green closed cell spray foam insulation and others need more. Batt insulation is that pink fiberglass found in exterior walls attic floors and the crawlspace ceiling.

Batt fiberglass features tightly woven glass strands that come together to create a matrix. Learn more about spray foam. It is cheap simple to install if not easy to install well and readily available. It is made from fiberglass strands that create a barrier for air flow.