Types Of Blown In Attic Insulation

We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons.

Types of blown in attic insulation.

Insulation is rated by its r value. R values vary based on the type thickness and density of the insulation material. Simple insulation jobs may be diy friendly if you rent an insulation blower but consider calling. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons. Batt and roll insulation works well between joist and stud spaces or if you have a wide open space or a crawlspace. R value measures how resistant types of insulation are to heat flow. It can be effectively blown over existing insulation and.

See install batt and roll insulation for details. For blown in insulation r values range from r 2 2 for fiberglass up to r 3 8 for dense cellulose. Batt and roll insulation and loose fill sometimes known as blown in insulation. Spray foam offers the best attic insulation performance available.

Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation. There are three types of blown in insulation. 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. Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.

For diy attic insulation you ve got two choices. Choose from two types. Blown in spray foam batts and blankets. Foam in place insulation can be blown into walls on attic surfaces or under floors to insulate and reduce air leakage.

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. Both can be added to uninsulated attics or layered over existing material. Closed cell and open cell aka 2 pound and pound respectively. The third major type of insulation is spray foam.

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams. When installed properly both types of insulation fill all of the nooks and crannies in a space and.