Flat Rooflight.
Frameless Skylight
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Invisible from above.
A frameless flat rooflight disappears into the roof membrane when viewed from outside. The glass sits flush with the roof surface, bonded to a hidden perimeter frame that is completely concealed from above. From ground level looking up at the house, there is no visible skylight at all.
From inside, the effect is even more striking: a perfect rectangle of sky, seemingly unsupported, dropping natural light into the space below. It is the cleanest rooflight detail in the category — specified on architect‑led extensions, contemporary new builds, and any project where the roof plane needs to read as a pure surface.
Walkable glass. Structural walkway option.
For roof terraces and external walkways that need daylight to the room below, we can specify a walkable variant — three layers of toughened laminated glass bonded together, engineered to carry pedestrian loads while remaining fully transparent. Used extensively on high‑end basement lightwells in Mayfair and Chelsea.
All frameless rooflights ship with self‑cleaning solar control glazing as standard. No upstand visible from above. Internal ceiling reveal can be plastered flush for a zero‑edge detail.
Specifications
Frameless flat rooflight with concealed perimeter frame. Structurally bonded 44mm insulated unit — toughened inner, toughened laminated outer, warm‑edge spacer. Self‑cleaning solar control low‑iron glass standard. U‑value 1.1 W/m²K. Upstand kit required for installation over flat roof membrane.
Fixed rectangular. Max single panel 4m × 2m. Walkable variant available with triple‑laminated toughened glass for pedestrian loading. Recommended pitch 5° minimum for water runoff. Internal ceiling reveal can be plastered flush to create a seamless edge detail.
Colour Options
Available in Black, Anthracite Grey, and White as standard.
Full RAL colour range available on request.
