Best Type Of Insulation For Attic

Both can be added to uninsulated attics or layered over existing material.

Best type of insulation for attic.

Loose fill fiberglass costs around 30 cents per cubic foot and it has an r value of 2 2 2 7 per inch. Loose fill or batt the common term for blanket insulation. R value measures how resistant types of insulation are to heat flow. Installing this type of insulation is an inexpensive and diy friendly project since the materials are designed to fit into the standard width between wall studs attic rafters and floor joists.

Loose fill insulation is available in either fiberglass or cellulose. Insulation is rated by its r value. For diy attic insulation you ve got two choices. Rolls and batts are produced of mineral wool and fiberglass.

The big disadvantage with spray foam is cost. But if the job is more complicated than an open attic it s best to hire a pro. Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls. Modern technology of blanket insulation today is considered the best insulation for attic.

How much insulation your attic requires its accessibility and its structural components drive the type of insulation you need. R values vary based on the type thickness and density of the insulation material. In general an attic s r value should be between r 30 and r 49. There are other materials and systems that you can use to insulate your attic.

It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. The best type of insulation for attics. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Among commonly used types of insulation there are mineral wool or fiberglass rolls and batts rigid fiberglass board loose fill materials cellulose mineral wool etc.

Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. You also can find batts and rolls made from mineral rock and slag wool plastic fibers and natural fibers such as cotton and sheep s wool. In particularly cold climates you might go up to r 60. I d blow insulation on the attic floor after air sealing of course.