Project Specs

Location: Vancouver, British Columbia
Climate Zone: Cool-Temperate
Building Type: Multi-Unit Residential
Project Phase: Certified
Certification Type: Passive House Classic
Year of Construction: 2019
Gross Floor Area (m2): 2868
Treated Floor Area (m2): 2162
PHPP Verification: Download

Project Description

This is a cohousing project containing 25 residential units plus a range of common house facilities. The units have been designed for the individual cohousing group members within a building form contained by a tight rezoning massing envelope. The form of the building is six stories in height with a common accessible green roof area, constructed over a concrete parkade. Important to the concept is a southwest facing court – the main common spaces open onto the court which also is overlooked by the common circulation at each building level. The ground level units are two-storey townhome type, other units are single level apartments.

The structure is wood frame construction with a double exterior wall to achieve high insulation and air tightness. Roof insulation is installed both in the joist cavity and continuously above the structure. Unit ventilation is provided by individual HRVs per suite and separate HRVs for amenity spaces and hallways.

Cooling is provided to the grounds floor amenity room by a mini split system.


Thermal Envelope

Exterior Wall: 2x6 insulated timber frame (R22 batt),
3” continuous EPS rigid insulation (R12) polymer faced both sides, taped sealed AB,
2x4 insulated timber frame (R14 Batt),
U-value = 0.125W/(m2K)
Basement Floor/Floor Slab: 5" EPS (R20),
8" suspended concrete slab,
5" monoglass (R20),
U-value = 0.129W/(m2K)
Roof: 6" poly-iso (R33) 1st layer mechanically fastened, upper layers chemically bonded
sloped EPS,
11 7/8 insulated I-Joists (R34 batt)
U-value = 0.074W/(m2K)
Window: Vetta Elite 92 Window and Patio Doors:
Glazing Argon filled, low-E coating,
Type A: Ug - value = 0.53 W/(m2K) , g-value = 0.53
Type B: Ug - value = 0.48 W/(m2K) , g-value = 0.29

CAL Entry Doors by Vetta Building Supplies

Mechanical System

Ventilation: The building has been fitted with 31 PHI certified Zehnder HRV units located inside the Thermal Envelope. Each suite is served by its own Zehnder ComfoAir 200 HRV.
Amenity spaces and hallways are served by ComfoAir 70, 350 and 550.
Heating/Cooling: Electric Baseboards.
Minisplit (Heating/Cooling) in Ground Floor Amenity Room.
Domestic Hot Water: 3 x 119 gal Sanden CO2 based Heat Pumps with recirculation swing tank (electric water heater).