Attic Insulation Types R Value

Spray foam attic insulation.

Attic insulation types r value.

In particularly cold climates you might go up to r 60. R value is a measure of insulation s ability to resist heat traveling through it. Insulation is rated by its r value. Foam in place insulation can be blown into walls on attic surfaces or under floors to insulate and reduce air leakage.

Recycled glass or sand that s melted and spun into fibers. You can use the small pressurized cans of foam. The higher the r value the better the thermal performance of the insulation. They sport insulation values of approximately r 6 5 and r 3 6 per inch 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. R value measures how resistant types of insulation are to heat flow. Spray foam offers the best attic insulation performance available. Insulation level are specified by r value.

A higher insulation r value usually means a higher price point as well. 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 r value of the insulation for every inch of thickness depends on the type of insulation. The table below shows what levels of insulation are cost effective for different climates and locations in the home.

In general an attic s r value should be between r 30 and r 49. In general how the insulation s method of installation can give you an idea of how it compares to other types of insulation. R values of common types of insulation. 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.

Some installations can yield a higher r value than traditional batt insulation for the same thickness and can fill even the smallest cavities creating an effective air barrier. The r value per inch for different types of insulation varies depending on the. Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. The two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting.

Closed cell and open cell aka 2 pound and pound respectively. 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. R values vary based on the type thickness and density of the insulation material. The recommended r value for attic insulation in ontario is between r 50 and r 60.