If there is an hrv then they can go with a r value of 50.
Alberta attic insulation code.
Add insulation to attic.
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.
Existing 3 4 inches of insulation.
The 2015 irc requires r 49 insulation for ceilings with attic spaces.
This will effect how homes are built and renovated relating to insulation.
For exceptions see alberta building code section 9 19 1 venting.
R value 60 if the builder doesn t install an hrv.
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.
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.
Recommended insulation levels for retrofitting existing wood framed buildings.
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.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Energy efficiency alberta s rebates are available for insulation added to a home s attic main walls exposed floors in basement and pony walls.
Pa302 1 ceilings with attic spaces n1102 2 1 r402 2 1.
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.
Hirf attached garage insulation values discussion the amendments to the alberta building code 2006 addressing high intensity residential fires include a requirement to provide a drywall finish or other similar performing material along with insulation and vapour barrier to the interior of attached garages.
It applies to small buildings which are defined in clause 9 36 1 3 of the alberta building code 2014.