Attic Insulation Types R Value

The r value of the insulation for every inch of thickness depends on the type of insulation.

Attic insulation types r value.

Spray foam attic insulation. A higher insulation r value usually means a higher price point as well. The higher the r value the better the thermal performance of the insulation. Choose from two types.

In general an attic s r value should be between r 30 and r 49. Lighter in weight than cellulose or mineral wool but it settles more than those materials so you ve got to put in a thicker layer to get the protection you need. The higher the r value the better the thermal performance of the insulation. R value is a measure of insulation s ability to resist heat traveling through it.

Spray foam offers the best attic insulation performance available. Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter. Achieving greater r values in exterior walls. In particularly cold climates you might go up to r 60.

The two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting. While there are additional considerations such as venting and moisture problems to take into account when you insulate under floors the united states department of energy recommends an r 25 rating in cold climates and an r 11 in warmer parts of the country. In general how the insulation s method of installation can give you an idea of how it compares to other types of insulation. The recommended r value for attic insulation in ontario is between r 50 and r 60.

The table below shows what levels of insulation are cost effective for different climates and locations in the home. If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Closed cell and open cell aka 2 pound and pound respectively.

For loose fill insulation each manufacturer must determine the r value of its product at settled density and create coverage charts showing the minimum settled thickness minimum weight per square foot and coverage area per. Insulation level are specified by r value. The r value per inch for different types of insulation varies depending on the. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

Your home s r value score will guide you toward the type of insulation you need. R value ratings vary among different types and forms of home insulations and among products of the same type and form.