Recommended Attic Insulation R Value Canada

Your home s r value score will guide you toward the type of insulation you need.

Recommended attic insulation r value canada.

The higher the r value the better the thermal performance of the 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. In such cases where r value is assigned this may decrease the r value requirement for batt insulation. R value is a measure of insulation s ability to resist heat traveling through it.

In particularly cold climates you might go up to r 60. Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. In general an attic s r value should be between r 30 and r 49. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

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. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Recommended home insulation r values. Insulation level are specified by r value.

Foam plastic insulation on the interior of the building envelope must adhere to the requirements of protection of foamed plastics as per 9 10 17 10 of the national building code of canada.