Attic Insulation Types R Value

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.

Attic insulation types 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. Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. A higher insulation r value usually means a higher price point as well. In general an attic s r value should be between r 30 and r 49.

You can use the small pressurized cans of foam. The recommended r value for attic insulation in ontario is between r 50 and r 60. 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 r value of the insulation for every inch of thickness depends on the type of insulation.

Foam in place insulation can be blown into walls on attic surfaces or under floors to insulate and reduce air leakage. The higher the r value the better the thermal performance of the insulation. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Insulation level are specified by r value.

Your home s r value score will guide you toward the type of insulation you need. For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed. In particularly cold climates you might go up to r 60. Choose from two types.

The r value per inch for different types of insulation varies depending on the. R value is a measure of insulation s ability to resist heat traveling through it. Closed cell and open cell aka 2 pound and pound respectively. Recycled glass or sand that s melted and spun into fibers.

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Spray foam offers the best attic insulation performance available. R value measures how resistant types of insulation are to heat flow. 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 how the insulation s method of installation can give you an idea of how it compares to other types of insulation. Spray foam attic 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. R values of common types of insulation.