Project Specs

Location: Hemmingford, Quebec
Climate Zone: Cold
Building Type: Single Family Residential
Project Phase: Certified
Certification Type: Passive House Classic
Year of Construction: 2021
Treated Floor Area (m2): 151.5
PHPP Verification: Download

Project Description

The house reinterprets the vernacular form of local rural buildings, nestled among the maples at the edge of a hay field. Warmed by the sun, insulated with a thick coat of cellulose, it is a cozy nest for dreaming, living, growing.

This deeply personal project was designed by the architect to be her own family’s home and workspace. Designed and re-designed over several years as she observed the site through changing seasons, then constructed as an owner-builder at the height of the covid-19 pandemic with a talented team of local carpenters.

This is one of the first certified Passive House projects in Quebec. Thanks to its light-frame wood construction and extensive use of cellulose insulation, which sequesters carbon by diverted paper from waste streams, the house has a lower embodied carbon footprint than if it had been built to only meet the minimum requirements of the Quebec Construction Code.

Thermal Envelope

Exterior Wall: 13mm gypsum
57mm service cavity
454mm double stud wall with blown cellulose
16mm gypsum sheathing
U-value = 0.086 W/m2K
Basement Floor/Floor Slab: 102mm concrete slab
318mm type II EPS insulation
U-value = 0.111 W/m2K
Roof: 13mm gypsum
51mm service cavity
915mm loose-fill cellulose in prefabricated wood trusses
U-value = 0.042 W/m2K
Window: ENERsign primus
Uw = 0.60 W/m2K

Triple-glazing with argon fill & low-e coating
Ug = 0.528 W/m2K
g-value = 0.60

Mechanical System

Ventilation: Zehnder Q350 ERV with built-in electric preheater
Effective heat recovery = 86%
Heating/Cooling: Electric resistance baseboards
Stûv 16-H wood stove with outdoor air intake
Domestic Hot Water: Electric resistance - Rheem Marathon 189L