Generally speaking a higher r value means better insulating properties.
Minimum attic insulation alberta.
For diy attic insulation you ve got two choices.
R value is a measure of insulation s ability to resist heat traveling through it.
Pa302 1 ceilings with attic spaces n1102 2 1 r402 2 1.
R 38 shall be deemed to satisfy the requirement for r 49 wherever the full height of uncompressed r 38 insulation extends over the wall top plate at the eaves.
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.
As mentioned please check your local codes and requirements before attempting anything on your own or simply call terminix for a free insulation inspection.
In zone 7 the average minimum requirement for attic insulation is 14 inches of r49 fill.
Energy efficiency alberta s rebates are available for insulation added to a home s attic main walls exposed floors in basement and pony walls.
If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.
The average recommended level is 17 inches of r60.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
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.
If your attic is not too cramped consider adding strapping onto the rafter bottoms and wall studs to allow for more insulation up to the recommended minimum level for attic insulation if possible.
The higher the r value the better the thermal performance of the insulation.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
The 2015 irc requires r 49 insulation for ceilings with attic spaces.
Watch attic insulation energy efficiency alberta video on youtube.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Both can be added to uninsulated attics or layered over existing material.
The recommended r value for attic insulation in ontario is between.
The effectiveness of insulation is measured in relation to its thermal resistance which is a way of saying how much conductive heat flow the product stops from going through it.
Insulation level are specified by r value.
However there is an exception.
This measurement is described as r value.
Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter.
Don t forget that electricity is the most expensive fuel in alberta and the cheapest in quebec.
