Attic Insulation Types R Value

For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed.

Attic insulation types r value.

R values of common types of insulation. 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. 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. 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. Recycled glass or sand that s melted and spun into fibers. 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. R value ratings vary among different types and forms of home insulations and among products of the same type and form.

Closed cell and open cell aka 2 pound and pound respectively. 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. The higher the r value the better the thermal performance of the insulation. The higher the r value the better the thermal performance of the insulation.

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. The two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting. Spray foam attic insulation. The r value per inch for different types of insulation varies depending on the.

Spray foam offers the best attic insulation performance available. In particularly cold climates you might go up to r 60. In general an attic s r value should be between r 30 and r 49. Choose from two types.

The r value of the insulation for every inch of thickness depends on the type of insulation. A higher insulation r value usually means a higher price point as well. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Insulation level are specified by r value.

Your home s r value score will guide you toward the type of insulation you need. R value is a measure of insulation s ability to resist heat traveling through it.