Attic Insulatiopn Types

I d blow insulation on the attic floor after air sealing of course.

Attic insulatiopn 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. In particularly cold climates you might go up to r 60. There are three types of blown in insulation. Spray foam offers the best attic insulation performance available.

Both can be added to uninsulated attics or layered over existing material. 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. In general an attic s r value should be between r 30 and r 49. The type of insulation you need depends on which type is currently installed and the required r value.

The big disadvantage with spray foam is cost. Your home s r value score will guide you toward the type of insulation you need. Spray foam attic insulation. Blowing insulation into an attic the most popular project for using blown in insulation is adding insulation to attics.

Here the insulation can be blown right over top of existing insulation to any depth or r value. Blowing insulation into walls. Closed cell and open cell aka 2 pound and pound respectively. It s a fast and easy diy project that two people can do in an afternoon.

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. Loose fill or batt the common term for blanket insulation. Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls.

Insulation types include loose fill batts rolls foam board spray board and vapor barriers. The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons. 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.

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Choose from two types. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.