Project Specs

Location:Invermere, British Columbia
Building Type:Single Family Residential
Project Phase:Completed
Certification Type:Passive House Plus
Year of Construction:2019
Gross Floor Area (m2):203
Treated Floor Area (m2):203
PHPP Verification:Download

Project Description

Single Family House with office/ suite. CLT construction, wood fibre board insulation, prefabricated with windows and doors built in.

Evacuated tubes for DHW and in-floor heating, rain water harvesting tank for toilet flushing and irrigation.

“Earth Tube” geothermal for pre heating & cooling for ERV.


Thermal Envelope

Exterior Wall:CLT (Exposed inside) 120 mm
WFB (Multitherm 110) 200 mm
WFB T&G (Top 180) 100 mm
Strapping 40 mm
Wood Siding T&G 25 mm
U-value = 0.119 W/(m2K)
Basement Floor/Floor Slab:Oak Flooring 19 mm
Wood Fibre Board 13 mm
Plywood 19 mm
Strapping 45 mm
Concrete (reinforced) 152 mm
6 mil Poly 0.6 mm
EPS 152 mm
EPS 152 mm
Gravel Compacted 100 mm
U-value = 0.097 W/(m2K)
Roof:CLT (exposed inside) 140 mm
WFB (Mutitherm 110) 240 mm
WFB T&G (Top 180) 120 mm
Riwega DO 180 membrane
Strapping 38 mm
Cross Strapping 38 mm
Metal Roofing
U-value = 0.101 W/(m2K)
Window:4 EN Plus/18/4/18/4 EN Plus
Edge compound Superspacer black
U g-value = 0.5 W/(m2K)
g -value = 52 %

Mechanical System

Ventilation:Zehnder, ComfoAir Q350 ERV
ComfoAir Q 350 ERV
8" HDPE "Earth Tube" (~40 m) for pre heating & cooling of supply air
Heating/Cooling:hydronic infloor heating entrance, heat generation with evacuated tubes into dual coil DHW tank
Domestic Hot Water:500 liter dual coil DHW tank fed by evacuated Tubes (2 panels/60 tubes) with electric backup