Your name
Richard Price
Your building company
Construction Le Tournesol
Your builder's name
Richard Price
Your architecture firm
Alias Architecture
Your architect's name
Lucie Langlois
Passive building consultant
Lucie Langlois & Richard Price
State or province
Quebec
Original construction year
Year when passive building work was or will be completed
Lot type
urban
Type of structure
wood-frame
Building use type
Brief description of the retrofit project
Maison Ozalée
Scope of retrofit
whole-building-retrofit
Why did you choose to do a whole, partial, or phased retrofit?
Total area of the structure (in square feet)
2850
Total renovated area of the retrofit project (in square feet)
2850
Date when the project began or is expected to begin (enter "01" for the day if you only know the month and year)
How many months did the renovation take? If ongoing, how many months is the renovation expected to take?
12
What were the main goals of the retrofit? Were these goals driven by you, a client or both?
IPHA certification and LEED platinum
Were people living in the building during renovation?
yes
Was this a registered historic building?
no
Did you use historic tax credits?
no
Passive house certified?
yes-by-other-organization
If certified by another group, please list the organization:
Air tightness (ACH) before renovation
.4
Air tightness (ACH) after renovation
Total annual electricity costs before renovation (in dollars)
Total annual electricity costs after renovation (in dollars)
Total annual electricity usage before renovation (in kWh)
Total annual electricity usage after renovation (in kWh)
Total annual heat costs before renovation (in dollars)
650
Total annual heat costs after renovation (in dollars)
Total annual heat usage before renovation (in kBtu)
Total annual heat usage after renovation (in kBtu)
Heat source(s) before renovation
electric
Heat source(s) after renovation
heat-pump
Annual hot water cost before renovation (in dollars)
Annual hot water cost after renovation (in dollars)
Hot water system before renovation
Hot water system after renovation
Annual hot water energy usage before renovation (in kWh)
Annual hot water energy usage after renovation (in kWh)
Energy Use Intensity (EUI) of the structure before renovation
Energy Use Intensity (EUI) of the structure after renovation
Is the retrofit now using renewable energy sources?
no
If using renewable energy, please describe the type, kWh generation and any other system specs
Were/are any passive house certified materials used?
Please describe your reasoning in using certified or non-certified materials
Door type before renovation
Door type after renovation
U-value of doors before renovation
U-value of doors after renovation
Please describe any methods you're using for controlling thermal bridging, water, vapor and air movement related to doors
Window type before renovation
Standard Double Pane no gas
Window type after renovation
Optiwin Resista
U-value of windows before renovation
U-value of windows after renovation
Please describe any methods you're using for controlling thermal bridging, water, vapor and air movement related to windows
Please give this assembly a name (label), if you are entering multiple assemblies
List all materials in the wall assembly before renovation (please list from outside to inside)
List all materials in the wall assembly after renovation (please list from outside to inside)
R-value of wall assemblies before renovation
.648
R-value of wall assemblies after renovation
.088
Please describe methods for controlling thermal bridging, water, vapor and air movement related to the wall assembly, e.g. materials used and construction
Materials in the roof assemblies before renovation
Materials in the roof assembly after renovation
R-value of roof assemblies before renovation
R-value of roof assemblies after renovation
.052
Please describe methods for controlling thermal bridging, water, vapor and air movement related to the roof assembly, e.g., materials and construction
Construction makeup of the foundation and ground water/vapor management systems before renovation
Construction makeup of the foundation and ground water/vapor management systems after renovation
R-value of foundation and ground water/vapor management systems before renovation
4.425
R-value of foundation and ground water/vapor management systems after renovation
Please describe any methods for controlling heat, water, vapor, and air movement related to the foundation and ground water/vapor management systems
Ventilation strategy (type and number of ERV or HRV) before renovation
none
Ventilation strategy (type and number of ERV or HRV) after renovation
1 Paul Novus HRV 300
If any make-up air systems were used, please describe
Please describe any thermal bridging issues before renovation
none
Please describe strategies to mitigate thermal bridging after the renovation
Option 1
Please describe any moisture issues before renovation
6
Please describe the moisture control strategy after renovation
.4
What rough percentage (0 - 100) of the wall assemblies have thermal bridges after renovation?
On a scale of 1 to 10, what was the perceived comfort of the structure before renovation?
On a scale of 1 to 10, what is the perceived comfort of the structure after renovation?
What was the total cost, or estimated cost, of design for the retrofit project (in dollars)?
547000
Total construction cost per square foot, or estimated cost, for the project (in dollars)
192
Total door cost (in dollars)
Total windows cost (in dollars)
Total wall assembly cost (in dollars)
Total roofing cost (in dollars)
Total foundation cost (in dollars)
Total ventilation cost (in dollars)
What types of funding did you use?
Roughly what percentage (0 - 100) of the project was financed?
If you calculated it, what was the energy return on investment, i.e. the EROI (in dollars)?
On a scale of 1 to 10, how much did you take the EROI into consideration before starting the project (if it was calculated)?
What is the expected life of this retrofit (in years)?
100
If you do another retrofit, what would you do differently?
Completely new walls
What do you wish you knew before starting the project?
Any other relevant info or data that we didn’t ask about?
Gray water heat recovery, Geothermal ground loop
Financing
Local regulations and rules
Technical challenges
Procuring materials
Working with your builder and/or architect
What would you say was the most successful part of the process?
