Zola created the first Passive House window—ZNC™—to be certified by both PHIUS and PHI, and has led the North American high performance window industry since the inception of the Passive House movement here.
When you choose Zola for your project, you are choosing a knowledgeable team with unparalleled expertise in high performance fenestration.
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).
The price is feasible, the windows are stunning, and the performance is everything a certified Passive House consultant could hope for.
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.
The highest performing window that money can buy, Zola Arctic™ combines a timber-aluminum frame with quad glazing, swisspacer warm edge technology, and generous foam insulation to deliver unparalleled performance in a broad range of climates, including the extremely cold.
Boasting performance that is approximately four times better than typical domestic triple-glazed windows, ZNC™ ("Zola No Compromise") represents the pinnacle of fenestration innovation.
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.
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.
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.
The slimmest design in Zola’s aluminum series, Thermo AluMinima combines high thermal performance with the minimalist elegance reminiscent of old steel profiles. Available in both double and triple-pane glass.
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.
American Heritage SDH™️ 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
Revolutionary efficiency, comfort, and indoor environmental quality.
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 suite of 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.
A warm sweater to wrap the building’s four walls, foundation and roof, free of gaps or “thermal bridges”.
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.
High performance windows mean no drafts, no condensation, and no feeling cold—even right next to big glass. Can you spot which Brooklyn row house sports Zola windows? See how those blue windows contrast with the bright red of the home’s old entry door?
Zola offers window and door frames made of sustainably harvested wood certified by the Forest Stewardship Council®, the standard bearer in third-party verification of sustainable forestry.
In its article, "Energy-efficient house embraces panoramic views of Puget Sound," Inhabitat features the House on the Cove by Stephenson Design Collective.
PRODUCTS Magazine recently highlighted one of the most beautiful, historic buildings on which we’ve had the privilege to collaborate.
The CNN Business story, “Making an old home healthier for you and the environment,” showcases Baxt|Ingui-designed projects, including Garden Place, the first Passive House retrofit of an historic landmark building in New York City.