Attic Insulatiopn Types

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.

Attic insulatiopn types.

The type of insulation you need depends on which type is currently installed and the required r value. Choose from two types. I d blow insulation on the attic floor after air sealing of course. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.

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. Spray foam attic insulation. The big disadvantage with spray foam is cost. It consists of flexible fibers most commonly fiberglass.

Both can be added to uninsulated attics or layered over existing material. Your home s r value score will guide you toward the type of insulation you need. It s a fast and easy diy project that two people can do in an afternoon. Spray foam offers the best attic insulation performance available.

In general an attic s r value should be between r 30 and r 49. For diy attic insulation you ve got two choices. Loose fill or batt the common term for blanket insulation. Insulation types include loose fill batts rolls foam board spray board and vapor barriers.

Here the insulation can be blown right over top of existing insulation to any depth or r value. The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons. The most common insulation materials are fiberglass cellulose and foam. Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls.

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. 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. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Blowing insulation into an attic the most popular project for using blown in insulation is adding insulation to attics. Blowing insulation into walls.