Attic Insulatiopn Types

It s a fast and easy diy project that two people can do in an afternoon.

Attic insulatiopn types.

The big disadvantage with spray foam is cost. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. The type of insulation you need depends on which type is currently installed and the required r value. Loose fill or batt the common term for blanket insulation.

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. If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary. Choose from two types.

Spray foam offers the best attic insulation performance available. Both can be added to uninsulated attics or layered over existing material. Here the insulation can be blown right over top of existing insulation to any depth or r value. In particularly cold climates you might go up to r 60.

Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls. There are three types of blown in insulation. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. 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.

The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. Your home s r value score will guide you toward the type of insulation you need. Blowing insulation into walls.

Blowing insulation into an attic the most popular project for using blown in insulation is adding insulation to attics. Spray foam attic insulation. 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 general an attic s r value should be between r 30 and r 49.

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. Closed cell and open cell aka 2 pound and pound respectively. Insulation types include loose fill batts rolls foam board spray board and vapor barriers.