What Type Of Insulation For Attic

Let s take a look at the different types their costs effectiveness and accessibility as a diy project.

What type of insulation for attic.

What type of insulation is right for you. 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. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. In general an attic s r value should be between r 30 and r 49.

Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. Spray foam attic insulation. R values vary based on the type thickness and density of the insulation material. 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.

Closed cell and open cell aka 2 pound and pound respectively. 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. Choose from two types. It consists of flexible fibers most commonly fiberglass.

Insulation is rated by its r value. Modern technology of blanket insulation today is considered the best insulation for attic. Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls. 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 there are two types of spray foam open cell and closed cell.

Rolls and batts are produced of mineral wool and fiberglass. The most common type of insulation batts and blankets are great for diy projects. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

In particularly cold climates you might go up to r 60. Spray foam offers the best attic insulation performance available. For diy attic insulation you ve got two choices. R value measures how resistant types of insulation are to heat flow.

Your home s r value score will guide you toward the type of insulation you need. Both can be added to uninsulated attics or layered over existing material. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.