Ontario building code continuously increases requirements of r value for attic insulation in 1992 the minimal value was around r 32 and in 2018 it is recommended to be between r 50 60.
Attic insulation thickness ontario.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
The government of canada grants up to 5 000 for home energy renovation s through the eco energy retrofit homes program which is in effect until march 31 2012.
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.
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.
The higher the r value the better the thermal performance of the insulation.
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They come with or without a paper or foil facing that acts as a vapor barrier.
Canada eco energy ontario homeowner s can get up to 750 in grants from the canadian government for attic insulation.
The r value of the insulation for every inch of thickness depends on the type of insulation.
This flexible insulation material is most often packaged in rolls that come in various thicknesses and standard widths usually 16 inches and 24 inches to fit between joists or studs in a house s framing.
R value is a measure of insulation s ability to resist heat traveling through it.
The recommended r value for attic insulation in ontario is between r 50 and r 60.
Eco insulation attic insulation sudbury ontario.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
Inspecting your attic insulation.
R values of common types of insulation the two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting.
