Technical Data

Technical Data

Rooflights built to last

Clarity Without Compromise

Transparency, refined through technology.

Light defines the architecture it enters. That’s why every Big Rooflight comes with Low-E glass as standard.

This high-performance coating enhances insulation while allowing approximately 63% of solar heat to enter (G-value =0.63) preserving the natural warmth and clarity of daylight.

The result: bright, balanced interiors that feel open with glass that works as hard as it shines.

Control the Sun

Comfort, control, and colour true light, the perfect balance of science and serenity.

For brighter or more exposed settings, we offer Solar Control Glass a refined upgrade that filters solar energy while maintaining colour neutrality.

By reducing solar heat transmission to just 35% (G-value = 0.35), it keeps interiors cooler and more comfortable without sacrificing the visual connection to the sky above.

Thermal Performance

Engineered warmth, invisible efficiency.

Every Big Rooflight is designed to perform as beautifully as it looks.

Our precision-engineered systems deliver exceptional thermal efficiency, ensuring comfort through every season.

Double glazed systems achieve a U-value of 1.0 W/m²K, offering outstanding insulation with a lighter build profile idealfor most architectural environments.

For projects that demand the ultimate in energy performance, our triple glazed systems reach a U-value of just 0.7W/m²K industry-leading thermal control, without compromise on light or clarity.

Thermally Broken system

Where performance meets presence.

Every pane of glass is precisely engineered and tested to maintain temperature stability and visual purity. Our systems eliminate cold bridging through fully thermally broken framing, ensuring a smooth transition between structure and sky.

What remains is pure experience light, quiet, and effortless.