Blown in spray foam batts and blankets.
Blown insulation types attic.
Each has its pros and cons as well as its own set of adherents who will tell you never to use the other type.
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.
Minimum suggested insulation values vary by geographic zones.
The type of material you use is up to you.
The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons.
Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation that just needs to be topped off.
Fiberglass batts cellulose loose fill fiberglass and spray foam.
First let s discuss the most common types of insulation available for attics.
If you choose loose fill insulation you ll need to rent a machine to install it.
We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons.
More options exist but these four materials make up the vast majority of installations in minnesota attics where i operate.