Triwood CHBA Netzero Retrofit

This home was retrofitted to CHBA Netzero Renovation standards.

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Building photo: Aerial view of the completed renovation with the solar installed

Calagry, Alberta

This home received a complete building envelope update, including new windows and doors, 6" Exterior Insulated Finish System, attic air sealing and insulation and 4" Extruded polystyrene insulation to 18" below grade. It then received a Daikin heatpump for forced air heating, a heat recovery ventilator, and an AO Smith heatpump hot water tank. It was topped off with a 12 kW Solar array.

This homeowner was able to eliminate their operational carbon footprint while achieving a much more comfortable home environment. 

BEFORE

AFTER

ENERGY 
CONSUMPTION
BEFORE
108
GJ/year
AFTER
0
GJ/year
COMFORT
BEFORE
Uncomfortable with cold areas in winter and hot areas in summer
AFTER
Consistent temperatures throughout
BUILDING CONDITION
BEFORE
In need of maintenance
AFTER
CHBA Netzero labeled
RENEWABLES
BEFORE
N/A
AFTER
WAll Insulation
BEFORE
2x4 walls with R8 effective
AFTER
R32 effective
Ceiling Insulation
BEFORE
R30
AFTER
R60
Foundation Insulation
BEFORE
2x4 walls with R8 effective
AFTER
R24 effective to 18" below grade
Windows
BEFORE
Original
AFTER
Lux triple pane
Ventilation
BEFORE
N/A
AFTER
HRV
Heating
BEFORE
Natural Gas
AFTER
Daikin Heat pump
Cooling
BEFORE
N/A
AFTER
Daikin Heatpump
Hot Water
BEFORE
Natural aspirated gas
AFTER
AO Smith heatpumps
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