Attic Insulatiopn Types

Spray foam offers the best attic insulation performance available.

Attic insulatiopn types.

In particularly cold climates you might go up to r 60. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. The type of insulation you need depends on which type is currently installed and the required r value. I d blow insulation on the attic floor after air sealing of course.

The most common insulation materials are fiberglass cellulose and foam. 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. Blowing insulation into walls. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

Loose fill or batt the common term for blanket insulation. It s a fast and easy diy project that two people can do in an afternoon. Your home s r value score will guide you toward the type of insulation you need. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

Here the insulation can be blown right over top of existing insulation to any depth or r value. Closed cell and open cell aka 2 pound and pound respectively. If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary. For diy attic insulation you ve got two choices.

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. Blowing insulation into an attic the most popular project for using blown in insulation is adding insulation to attics. Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls. In general an attic s r value should be between r 30 and r 49.

Choose from two types. Both can be added to uninsulated attics or layered over existing material. It consists of flexible fibers most commonly fiberglass. The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. The big disadvantage with spray foam is cost. There are three types of blown in insulation.