What Type Of Insulation For Attic

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

What type of insulation for attic.

Insulation is rated by its r value. Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. R value measures how resistant types of insulation are to heat flow. R values vary based on the type thickness and density of the insulation material.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Closed cell and open cell aka 2 pound and pound respectively. Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls. 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.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. It consists of flexible fibers most commonly fiberglass. For diy attic insulation you ve got two choices. The third major type of insulation is spray foam.

Choose from two types. 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. They usually come packaged in rolls and are easy to transport and carry. The most common type of insulation batts and blankets are great for diy projects.

Let s take a look at the different types their costs effectiveness and accessibility as a diy project. 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. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Spray foam attic insulation.

Loose fill or batt the common term for blanket insulation. In particularly cold climates you might go up to r 60. What type of insulation is right for you. In general an attic s r value should be between r 30 and r 49.

Rolls and batts are produced of mineral wool and fiberglass. 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. Modern technology of blanket insulation today is considered the best insulation for attic.