Attic Insulation Types R Value

The recommended r value for attic insulation in ontario is between r 50 and r 60.

Attic insulation types r value.

The table below shows what levels of insulation are cost effective for different climates and locations in the home. In particularly cold climates you might go up to r 60. R values vary based on the type thickness and density of the insulation material. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

Insulation level are specified by r value. In general how the insulation s method of installation can give you an idea of how it compares to other types of insulation. Insulation is rated by its r value. 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.

You can use the small pressurized cans of foam. Your home s r value score will guide you toward the type of insulation you need. Foam in place insulation can be blown into walls on attic surfaces or under floors to insulate and reduce air leakage. For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed.

R values of common types of insulation. Recycled glass or sand that s melted and spun into fibers. Spray foam attic insulation. Choose from two types.

Closed cell and open cell aka 2 pound and pound respectively. The two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting. 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. 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.

Spray foam offers the best attic insulation performance available. The higher the r value the better the thermal performance of the 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. In general an attic s r value should be between r 30 and r 49.

R value measures how resistant types of insulation are to heat flow. Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. The r value of the insulation for every inch of thickness depends on the type of insulation. 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.