Looking at the alberta building code it says that new residential buildings need to have their attic insulated to rsi value of 10 43 i e.
Alberta attic insulation code.
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.
Alberta building code for attic insulation august 4 2020 by zamira leave a comment national building code alberta air barrier details at windows doors building code updates to alberta building code 9 36 signature insulation.
Roof vents shall be equally distributed so that approximately 50 percent of the required vent area is located near the lower part of the roof and approximately 50 percent of the required vent area is near the ridge.
Existing 3 4 inches of insulation.
If there is an hrv then they can go with a r value of 50.
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.
Add insulation to attic.
Energy efficiency alberta s rebates are available for insulation added to a home s attic main walls exposed floors in basement and pony walls.
For exceptions see alberta building code section 9 19 1 venting.
Updates to alberta building code 9 36 august 8 2016 in attics jm spider spray foam insulation walls by colin the energy efficiency portion of the 2014 alberta building code 9 36 comes into effect on november 1st 2016.
Pa302 1 ceilings with attic spaces n1102 2 1 r402 2 1.
R value 60 if the builder doesn t install an hrv.
Recommended insulation levels for retrofitting existing wood framed buildings.
This will effect how homes are built and renovated relating to insulation.
Section 9 36 of the alberta building code 2014 covers the principal building components and systems in a house or small building including the building envelope heating and hot water systems.