Recommended Attic Insulation

The ideal attic insulation r value is different than the ideal wall insulation r value.

Recommended attic insulation.

Among commonly used types of insulation there are mineral wool or fiberglass rolls and batts rigid fiberglass board loose fill materials cellulose mineral wool etc. Achieving greater r values in attics. Recommended home insulation r values. Rolls and batts are produced of mineral wool and fiberglass.

The higher the r value the better the thermal performance of the insulation. Closed cell and open cell aka 2 pound and pound respectively. Insulation ratings can be improved by adding more layers of insulation. The big disadvantage with spray foam is cost.

For diy attic insulation you ve got two choices. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. The province the city and the area greatly influence the difference in r value for the insulation of an attic. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.

Spray foam offers the best attic insulation performance available. I d blow insulation on the attic floor after air sealing of course. Modern technology of blanket insulation today is considered the best insulation for attic. Both can be added to uninsulated attics or layered over existing material.

If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary. Insulation levels are specified by r value. Insulation level are specified by r value. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. It must be considered then that the minimum. Choose from two types.

Inspecting your attic insulation. Make sure your home is properly insulated in all these locations. So it s time to pay close attention to what s happening up there. Spray foam attic insulation.

R value is a measure of insulation s ability to resist heat flow. R value is a measure of insulation s ability to resist heat traveling through it. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Add the right kind of insulation.

Recommended r value for attic insulation canada the recommended r value for insulation of attics in canada depends on the area as it is a value that changes a lot from area to area. The higher the r value the better the thermal performance of the insulation.