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.
Minimum attic insulation alberta.
Energy efficiency alberta s rebates are available for insulation added to a home s attic main walls exposed floors in basement and pony walls.
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.
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 average recommended level is 17 inches of r60.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
This measurement is described as r value.
Watch attic insulation energy efficiency alberta video on youtube.
Generally speaking a higher r value means better insulating properties.
As mentioned please check your local codes and requirements before attempting anything on your own or simply call terminix for a free insulation inspection.
The 2015 irc requires r 49 insulation for ceilings with attic spaces.
For diy attic insulation you ve got two choices.
The recommended r value for attic insulation in ontario is between.
Loose fill or batt the common term for blanket insulation.
Both can be added to uninsulated attics or layered over existing material.
The higher the r value the better the thermal performance of the insulation.
Don t forget that electricity is the most expensive fuel in alberta and the cheapest in quebec.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Pa302 1 ceilings with attic spaces n1102 2 1 r402 2 1.
Insulation level are specified by 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.
R value is a measure of insulation s ability to resist heat traveling through it.
The following table provides minimum estimates of how much money you can expect to get back in rebates your.
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.
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 table below shows what levels of insulation are cost effective for different climates and locations in the home.
However there is an exception.
