Project Specs

Location: Maxville, Ontario
Climate Zone: Cool-Temperate
Building Type: Single Family Residential
Project Phase: Certified
Passive House Type: Low Energy Building
Year of Construction: 2025
Gross Floor Area (m2): 128
Treated Floor Area (m2): 128
PHPP Verification: Download

Project Description

This 128m² single-family home in Maxville, ON is the township’s first certified passive house. Built with durable, energy-efficient materials and passive house components, it features minimal thermal bridges and an excellent airtightness rate of 0.19 ACH @ 50 Pa, providing lasting efficiency and comfort.


Thermal Envelope

Exterior Wall: Nudura ICF Exterior Wall - U-0.112
- 1/2" Gypsum Board
- 2x3 Service Cavity
- 4" EPS Insulation
- 6" Concrete Core
- 4" EPS Insulation
- 3 7/8" EPS Insulation (Nudura Omega Panel)
- 3M VP Air Barrier
- 1x4 Wood Strapping
- Board and Batten Siding
Basement Floor/Floor Slab: Legalett Geo Passive Slab on Grade - U-0.109
- 6" Concrete Slab
- 15mil Stego Vapour Barrier
- 12" EPS Insulation
Roof: Ventilated Attic Roof - U-0.063
- 1/2" Gypsum Board
- 2x3 Service Cavity
- 3/4" Plywood Sheathing
- 2' Blown-in-cellulose Insulation
- Pre Engineered Roof Trusses
- 5/8" Plywood Sheathing
- Ice and Water Shield
- Steel Roofing
Window: NZP Fenestration Cool Temperate Windows and Doors - U-0.85
g-value - 0.59
ug-value - 0.61

Mechanical System

Ventilation: Zehnder ComfoAir Q350 ERV
Heating/Cooling: Mitsubishi Ductless Split Heat Pump
Domestic Hot Water: Rheem Electric Hot Water Tank