Frameless Glazing: Modern Frameless Windows for American Architects
IQ Glass International is a UK company bringing cutting-edge European frameless glazing to the American market. Our frameless glass windows, often called ‘picture windows’ in the US, flood interiors with natural light, open up stunning views, and give projects a stylish, modern edge. Tailored for American climates and building styles, frameless glazing is a game-changer for architects looking to push design boundaries.
Why Frameless?
Frameless windows strip away the clutter of traditional frames, either hiding them in the structure or ditching them entirely with structural glazing. This creates clean, expansive views that double-hung or casement windows can’t match. Picture a Manhattan penthouse with uninterrupted skyline views or a California home blending seamlessly with its garden; our systems deliver the openness and elegance architects are looking out for.
Oversized Windows for Brighter Spaces
American design loves big, light-filled rooms. Our oversized frameless windows make that happen, connecting interiors to the outdoors. They’re also energy-smart, with minimal framing, low-E coatings, and triple glazing, hitting Uw values of 1.1–1.2 W/m²K – well within ENERGY STAR specs. That means lower energy bills and possible tax breaks for your clients.
Understanding U Factors and Uw Values
When it comes to energy performance, many American architects use the U factor (BTU/h·ft²·°F) to measure heat transfer through a window, while in Europe and the UK, a Uw value (W/m²K) is used. Despite the different units, both ratings show how well a frameless glazing window insulates against heat loss: the lower the number, the better the performance.
In climate zones where maximum U factors are enforced (IECC, ASHRAE), high-performance glazing becomes crucial; especially for large frameless or minimal-frame installations that maximise glass areas. To illustrate how U factors correlate with Uw values:
| U factor (BTU/hsqftF) | Uw value (W/m²K) |
|---|---|
| 0.28 | 1.6 |
| 0.26 | 1.5 |
| 0.25 | 1.4 |
| 0.23 | 1.3 |
| 0.21 | 1.2 |
| 0.19 | 1.1 |
| 0.18 | 1.0 |
| 0.16 | 0.9 |
| 0.14 | 0.8 |
| 0.12 | 0.7 |
| 0.11 | 0.6 |
| 0.09 | 0.5 |
(U factor vs. Uw value table)
Invisio: Smart Structural Glazing
Our Invisio system uses hidden, thermally broken fixings for a true frameless glazing look with great performance. It’s practical, too. Side channels make glass swaps simple without damaging finishes. Architects get a clean design; builders get an easy install.
Built for America
Tested to ASTM standards for wind resistance (0.8–1.6 kN) and insulation, Invisio fits US codes like the IRC. It works with timber, steel, or hybrid frames. We’ve also got frameless glazing options for every climate:
- Impact-resistant glass for hurricane zones like Florida
- Triple glazing for icy New England winters
- Solar coatings for sunny Nevada
- Acoustic glass for noisy cities like Chicago
Adding Value with Frameless Glazing
Good glazing is gorgeous, and it pays off in the long run. The National Association of Realtors says buyers love natural light and modern looks, boosting resale value. Frameless windows give properties a fresh, high-end feel that stands out in any market.
Matching American Styles
Whether it’s a Craftsman reno, a Mid-Century Modern refresh, or a Colonial update, our team ensures the glazing fits your vibe. We respect the architecture while adding a contemporary twist.
Why Work with Us?
- Global expertise with an American focus
- Custom specs for every frameless glazing project
- Nationwide delivery and install support
- Dedicated project managers from start to finish
- Innovative tech like Invisio for top-tier results
Ready to Design with Us?
Looking for standout frameless glazing that’s easy to spec and install? Contact us to see how frameless glazing can elevate your next project.