Blown Attic Insulation Types

Some installations can yield a higher r value than traditional batt insulation for the same thickness and can fill even the smallest cavities creating an effective air barrier.

Blown attic insulation types. Blown in spray foam batts and blankets. The third major type of insulation is spray foam. Spray foam attic insulation. Closed cell and open cell aka 2 pound and pound respectively.

Foam in place insulation can be blown into walls on attic surfaces or under floors to insulate and reduce air leakage. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation. Just as there are two types of blown insulation fiberglass and cellulose and two types of people those who divide everything into two groups and those who don t.

Your options for attic insulation range from radiant barriers to sheets of mineral wool but most homeowners stick with products made from cellulose or fiberglass. Choose from two types. Spray foam offers the best attic insulation performance available. We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons.

See install batt and roll insulation for details. The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons. That s because blown insulation is great at filling the gaps and giving you a good complete layer of insulation. Batt and roll insulation works well between joist and stud spaces or if you have a wide open space or a crawlspace.