Triple Glazed Flat Rooflights & Skylights

400mm x 1200mm Triple Glazed Flat Rooflight

£379.00 inc. VAT
In Stock

This high-performance, non-opening skylight is triple-glazed with 6mm toughened, self-cleaning glass. All of our units are extremely high-quality with a U Value of just 0.6 W/m. Our rooflights are low-maintenance and provide exceptional heat insulation, light transmission and noise reduction. For a quick and simple installation, we also can supply a rebated timber frame.

Added to your shopping basket

    • Triple Glazed with 6mm toughened self-cleaning glass
    • U Value of only 0.6 W/m
    • Contemporary Black Edged Glass
    • Warm edge spacer bar filled with Argon gas
    • Suitable for flat and pitched roofs
    • We guarantee it will never leak
    • Timber Frame supplied
    • Technical Phone support

    Please note: The sizes we quote are inside structural opening sizes both ‘Inside joist’ & ‘Visible glass area’.

    • Structural opening size – 400mm x 1200mm
    • Internal Glass Size – 440mm x 1240mm
    • External Glass Size – 600mm x 1400mm


    • 6mm clear toughened glass which is self-cleaning
    • 16mm warm edge spacer bar filled with Argon Gas
    • 4mm toughened clear soft coat Low E glass
    • 16mm warm edge spacer bar filled with Argon Gas
    • 4mm toughened clear soft coat Low E glass
    • BSEN12150C1*
    • CE
  • Our triple-glazed fixed models boast a system U Value (how effective a material is as an insulator) of 0.6W/m. This means you won’t have any unnecessary heat loss from our units, unlike most of our competitors who have a much higher U Value of around 1.2W/m. On average our units are 40% more efficient than required by Building Regulations.

  • When it comes to choosing a rooflight for your property, safety is an important factor. With this in mind, all our units are made from toughened soft coat (Low E) glass with an overall thickness of 46mm.

    Best Practice Handling

    When handling the skylight there are a few things to remember.
    Once removed from the packaging lay the glass flat on a soft surface
    Do not lay the glass on hot surfaces
    Do not rest the glass on its edges
    For our larger skylights when carrying flat, support the middle of the glass to stop any flex