Project Specs

Location: Montreal, Quebec
Building Type: Single Family Residential
Project Phase: Certified
Certification Type: EnerPHit Classic
Year of Construction: 2015
Treated Floor Area (m2): 264 m2

Project Description

The Ozalee Passive house is a refurbished family house in Montreal (Quebec) that aim both Passivhaus and LEED Platinum certifications. It is the final result of one year of hard team working. As passivhaus is still borning in Quebec it will help people to understand this way of thinking buildings. Energy is only one of the multiple sides of this project. Many other feature has been and will be included into it, like water harvesting, waste material recycling, local and low VOC material, permacultural design and many more. (See our web site and LEED for more information)
More over the house will be open over the world via a collaborative garden, a bed and breakfast and different social projects.
Sharing about these topics is a real pleasure for us, feel free to contact us.


Thermal Envelope

Exterior Wall: Existing walls, first floor:
Gypsum board 1/2'' (13mm)
Technical cavity 1 1/2'' (38mm)
Existing 3'' solid wood frame (76mm)
Plywood 3/4" + SIGA tape as air and moisture barrier (19mm)
Vertical I-joist 16" with dense packed cellulose (406mm)
Wood fiber panel 1/2" (13mm)
Weatherproof membrane
U-value: 0,096 W/(m²K)
Roof: New roof
Gypsum board 1/2'' (13mm)
Technical cavity 1 1/2'' and 3/4'' (57mm)
Wood fiber board with aluminium foil inside side as vapor and air barrier 1/2'' (13mm)
Wooden roof trusses
Loose cellulose insulation 30'' (762mm)
Ventilation space
Plywood 3/4"
Flat roof membrane
U-value = 0.051 W/(m2K)

Mechanical System

Ventilation: Zehnder, Novus 300F
Comfofond-L geothermal heat exchanger
eff. specif. HRE: 83%
Heating/Cooling: all electrical
electrical supply air heating
3 electrical heated wall in living room, guest room and basement
Domestic Hot Water: Electric hot water heater 280L - Rheem Marathon
Gray water heat recovery tank 250L - Aquartis Ecovison ES250