Passive House Windows & Doors
Unsurpassed performance, uncompromising function and beauty.
Configurations Optimized for Passive House:
Zola has led the North American high performance window industry since the inception of the Passive House movement.
Zola created the first Passive House window—ZNC™—to be certified by both PHIUS and PHI. When you choose Zola for your project, you are choosing a knowledgeable team with unparalleled expertise in high performance fenestration.
ZNC™️ is the First Passive House Window to be Certified by both PHI and PHIUS
Boasting performance that is approximately four times better than typical domestic triple-glazed windows, ZNC™ (“Zola No Compromise”) represents the pinnacle of fenestration innovation.
ZNC is the first window to be certified by both Passive House Institute (PHI) and Passive House Institute US (PHIUS).
Trusted by Certified Passive House Consultants Nationwide.
The price is feasible, the windows are stunning, and the performance is everything a certified Passive House consultant could hope for.
- Tessa Bradley
Zola’s Passive House Lines
We offer an unrivaled selection of Passive House window lines, available in Clad Wood, Aluminum, uPVC, and Wood frames. Our SDH™ Simulated Double Hung windows are ideal for historic Passive House retrofits.
ZNC™
Boasting performance that is approximately four times better than typical domestic triple-glazed windows, ZNC™ ("Zola No Compromise") represents the pinnacle of fenestration innovation.
Visible Sash
ThermoPlus Clad™
For projects that require greater performance than the popular Thermo Clad™ line, Zola offers the ultra high-performance ThermoPlus Clad™ line of windows and doors.
Visible Sash
Thermo Alu90™
Thermo Alu90™ combines a Passive House level frame with the thin profile of aluminum for the modern high performance project. The frame is designed to support very large window sizes. Made in standard triple pane, low-iron glass.
Visible Sash
ThermoPlus uPVC™
The foam-insulated ThermoPlus uPVC is the highest performing choice for economical Passive House, net zero projects, and large multifamily developments. Features an 85mm deep fiberglass-reinforced frame and steel-reinforced sashes.
Visible Sash
Thermo Alu SlimLine™
The Zola Alu SlimLine system is designed for architectural projects that prioritize the combination of minimalist aesthetics, high-quality thermal insulation and invisible (hidden vent) drainage. Available in double or triple glazing to match your performance requirements.
Visible Sash
Thermo Wood™
Zola Thermo Wood™ is a classic choice for high performance homes. With R-11 glass standard in an industry-leading 18mm spacer thickness, Thermo Wood can be offered in extremely large sizes.
Visible Sash
American Heritage SDH™
Our SDH™️ Simulated Double Hung windows combine a lower tilt & turn assembly with a fixed upper to provide outstanding thermal and acoustic performance, modern functionality, and the style and proportions of a traditional double hung window.
Learn more here.
Visible SashThe Passive House Method
The Passive House Method is the standard bearer for high performance design and construction around the world. It is grounded in building science, advanced energy modeling, and this following design principles:
- High Performance Windows and Doors
To capture solar gains, dramatically reduce heat loss, and maintain the moderate interior surface temperatures vital to occupant comfort. - Continuous Insulation
- A warm sweater to wrap the building’s four walls, foundation and roof, free of gaps or “thermal bridges”.
- Airtight Envelope
- To eliminate chilly drafts and moisture-bearing air leaks into building assemblies.
- Balanced Fresh Air Ventilation
- A high performance H/ERV ventilation system supplies filtered fresh air, exhausts stale air, and recovers heat and humidity.
- Passive Solar Management
- To exploit the sun’s energy in the winter and shield from it during the summer.
Feel the
Zola Window difference.
High performance windows mean no drafts, no condensation, and no feeling cold—even right next to big glass. The blue Zola Windows contrast with the neighboring windows and the original historic front door. It’s a difference you feel.
From the Blog
Solar Heat Gain and Window Treatments
At Zola, we’re often asked the following question: “What window blinds, internal shutters, or other window coverings should we consider to help reduce solar heat gain?”
Green Builder: Hot 50 Products 2021
ThermoPlus uPVC selected as one of Green Builders 50 Products they feel raise the sustainability bar.
How Windows Make (or Break) Wall Performance, Illustrated
The thermal performance of your building’s walls is only as strong as the weakest link, and windows are too often that weak link.