Recommended Attic Insulation R Value Canada

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.
Recommended attic insulation r value canada. 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. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Recommended home insulation r values. Insulation level are specified by r value.
Your home s r value score will guide you toward the type of insulation you need. Inspecting your attic insulation. In such cases where r value is assigned this may decrease the r value requirement for batt insulation. In general an attic s r value should be between r 30 and r 49.
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. 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 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.
The province the city and the area greatly influence the difference in r value for the insulation of an attic.