Passive House Windows — European Wood & Aluminum Clad
Passive House windows aren’t just about glass. The frame is where most projects fail or succeed. Our European wood and aluminum-clad systems are engineered with deep frame profiles, thermally broken frame, and glazing options up to quadruple-pane — four panes of glass with three insulating cavities, low-iron glass, Low-E coatings, and argon or krypton gas fills. For projects in extreme climates or targeting the most demanding PHI certification thresholds, this is the specification that gets you there. Triple-pane is our standard. Four panes is our ceiling — and very few window suppliers anywhere in North America can offer it.
Quadruple-Pane Glazing — The Performance Ceiling
Most high-performance window suppliers stop at triple pane. We don’t. For Passive House projects in cold climates, north-facing exposures, or ultra-low energy targets, we offer quadruple-pane glazing — four panes of glass with three insulating chambers. The thermal performance is exceptional: center-of-glass U-values that outperform any triple-pane unit on the market, with near-elimination of cold radiant surfaces even in the depths of a northern winter.
Quadruple-pane units are heavier and require robust hardware — which our European wood and aluminum-clad frames are designed to handle. If your energy model demands it, or if you simply want the best glass available, this is it.
Performance Built Into the Frame
Passive House windows aren’t just about glass. The frame is where most projects fail or succeed. Our European wood and aluminum-clad systems are engineered with deep frame profiles, thermally broken threshold, and triple-pane glazing using low-iron glass, Low-E coatings, and argon or krypton gas fills. The result: Uw values well below 0.141 BTU/hr·ft²·°F, with select configurations reaching PHI-certified performance levels.
Every unit is manufactured to tight tolerances with compression seals and multi-point locking hardware — the same construction standard that makes European windows so well suited to airtight envelopes. These are not windows you adapt to a Passive House project. They are windows designed for it.
Designed for Architects and Custom Home Builders
We collaborate with professionals who require flexibility, precision, and reliable execution.
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- Fully custom dimensions and configurations
- Support from concept to final production
- Solutions adapted to both contemporary and traditional architecture
- Experience with large openings, complex designs, and demanding specifications
Our goal is to deliver products that integrate seamlessly into your design vision.
Sustainability Without Sacrifice
Passive House and environmental responsibility go hand in hand. Our wood-framed windows use responsibly sourced timber — a renewable, low-carbon material that performs well thermally and ages gracefully. The aluminum exterior extends the life of the frame significantly, meaning less waste over the building’s lifetime. And the energy savings a well-specified Passive House window delivers over 30 or 40 years represent a real, measurable reduction in carbon footprint — not just a certification checkbox.
For projects pursuing LEED, PHIUS, or PHI certification, our team can provide full technical documentation including U-values, SHGC ratings, air infiltration data, and glazing specifications to support your energy modeling and submittals.
Wood Interior. Aluminum Exterior. No Compromise.
The aluminum-clad wood construction is the right choice for most Passive House projects — and for good reason. The wood interior delivers warmth, natural insulation properties, and a finish that no synthetic material can replicate. The aluminum exterior protects the frame from rain, UV, freeze-thaw cycles, and decades of weather, with zero maintenance required. Together, they perform better and last longer than either material alone.
Interior wood species and stains are fully customizable. Exterior aluminum cladding is available in any RAL color, powder-coated to a durable factory finish. Whatever the aesthetic direction — contemporary, traditional, Scandinavian-influenced, or minimalist — the system adapts.
Request a Quote or Technical Consultation
Every Passive House project is different. Window sizing, glazing specification, frame depth, solar orientation, and local climate all affect which system is right for yours. We’re happy to review your drawings, discuss your energy model targets, and provide a detailed quote with full technical specifications.
