Passive House products
Fenstür is North America’s first and Canada’s only manufacturer of Certified Passive House wood windows and doors, with all-wood and wood-aluminum-clad options supported from early energy modelling through final product coordination.
Two exterior expressions
Both begin with the same engineered timber structure and the same warm, genuine-wood interior. The choice is about exterior expression, exposure, maintenance and budget.
Compare materials + finishesPHI-certified and modelled configurations provide the frame, glass, spacer and whole-window information needed for Passive House, net-zero and Step Code 5 work.
The certified product scope includes tilt-and-turn windows, picture windows, entry doors and tilt-and-turn doors without giving up the warmth of real wood.
Sizing, glass, solar gain, operability and installation details are reviewed while they can still improve the building model.
Canadian manufacturing, NAFS and NFRC documentation, direct service and Fenstür-coordinated delivery reduce the uncertainty of importing a distant European package.
Documented wood-system options can support Living Building Challenge material goals while preserving the performance, durability and natural interior character of a substantial timber frame.
Simple technical overview
Normally paired with high-performance triple-pane low-e glazing.
Coatings and solar heat gain are selected for the building model and orientation.
Fenstür holds documented all-wood and wood-aluminum-clad certified window configurations.
Use the applicable current certificate and technical package in the energy model.
Sizes and ratings depend on product type, operation, glass, exposure and current tested limits. Fenstür confirms the applicable values with the quotation.
Case study · The Green Point Project
The Green Point Project brings together aluminum-clad tilt-and-turn windows, a custom red front entry door, picture windows and a lift-and-slide opening. The result shows how high-performance detailing can support natural timber interiors, broad views and a strong architectural identity.
Certified scope
Fenstür’s certified product family includes tilt-and-turn and picture windows plus high-performance door systems. Fenstür is also one of three manufacturers worldwide with a Passive House-certified wood-aluminum-clad entry door, and the only one in North America.
106 mm system
The 106 mm series uses over 4⅛ inches of engineered timber and is normally paired with thick triple-pane low-e glass. In documented Passive House configurations, cork insulation is incorporated in the solid wood frame to improve thermal performance while maintaining slim sightlines and real-wood interiors.
Why wood
Passive House should be about responsible building—not only low heating demand. Responsibly sourced wood is local, renewable, recyclable, repairable and supported by an ethical, transparent supply chain. It stores carbon, can be maintained rather than discarded and connects long-term performance with natural-material stewardship. Other frame materials may meet an energy target, but when they are energy-intensive, disposable or difficult to repair, they conflict with the broader philosophy Passive House is meant to advance.
Why Fenstür
Passive House design depends on the complete opening: frame, sash, glass, spacer, installation position, air-barrier continuity, shading and orientation. Fenstür helps the project team coordinate those decisions rather than treating the window schedule in isolation.
A trusted local partner
Fenstür combines advanced European window technology with Canadian manufacturing, North American testing and direct support from the people building the product. That means clearer communication, practical shipping and easier follow-through when a project detail changes.
Specify early
Early review allows the team to balance operable area, frame fraction, views, egress, structural limits, solar gain and budget while there is still room to improve the package.
Frequently asked
No. Performance changes with system, size, operation and glass. Use a certified or project-modelled configuration and confirm the current whole-window data for the exact package.
No. Fenstür casement windows are not part of the current Passive House-certified product scope. The certified product types are tilt-and-turn windows, picture windows, entry doors and tilt-and-turn doors, subject to the applicable certificate and configuration limits.
Fenstür products are available in all-wood and wood-aluminum-clad construction. The project team should confirm which documented configuration provides the required certification or modelled values.
Your next step