Recommended Attic Insulation R Value Canada

These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

Recommended attic insulation r value canada.

In particularly cold climates you might go up to r 60. And increase your home s value. 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. Improve the insulation in your attic on your above grade walls in the basement and in exposed floors for a more comfortable and energy efficient home.

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. Recycled glass or sand that s melted and spun into fibers. Recommended home insulation r values. 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.

In such cases where r value is assigned this may decrease the r value requirement for batt insulation. Inspecting your attic insulation. The higher the r value the better the thermal performance of the insulation. After installing insulation in the existing cavities nail or screw strapping 2 x 2 or 2 x 3 on edge perpendicular to the rafters and studs.

R value is a measure of insulation s ability to resist heat traveling through it. The table below shows what levels of insulation are cost effective for different climates and. Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. See the department of energy s doe ranges for recommended levels of insulation below.

Best of all there s typically no maintenance. Insulation level are specified by r value. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. 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.

The province the city and the area greatly influence the difference in r value for the insulation of an attic. 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. Just energy savings and better comfort for decades.