Triple Glazed Rooflight - Fixed Dome For Flat Roof

(1 reviews)
  • £182.00

  • Inc VAT: £218.40

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Availability:In Stock

Product Code:ADD.SD

Polycarbonate Triple Glazed Rooflight for Flat Roof are manufactured to a high standard with triple glazing and a 150mm PVC Upstand. The thermally separated upstand manufactured from PVC plastic profiles ensures a strong thermal performance and resilience to condensation formation. Our roof lights are leading the way in terms of quality and price, with the thermally separated multi-chamber system. These flat roof windows are available in clear or opal variants. Available in 7 sizes up to 1200 x 1800mm in stock for immediate dispatch. Triple Layer U-value: 1.8 W/m²K Addlite Fixed Roof Light for Flat Roof feature a modern, stylish aesthetic which has been designed from the ground up to provide easy installation as well as high performance. Designed with a modular structure allowing a variety of configurations, the thermally broken frame manufactured from plastic profiles ensures a strong thermal performance and resilience to condensation formation. For effective heat insulation, our triple glazed fixed roof lights have a U-value of 1.8 W/m²K, the Glazing is constructed from Polycarbonate plastic which meets Part L 2013 requirements. The PVC Upstands feature a unique thermally separated frame structure with a Multi-chamber system manufactured from plastic profiles for enhanced efficiency. 


  • Triple Layer Polycarbonate (PC) Lid
  • PVC Upstand
  • Clear or Opal diffused layers

Performance - Triple Glazed Rooflight

  • U Value 1.8 W/m²K based on standard triple layer
  • PVC Upstand U-value 1.1 W/m²K
  • Sound reduction 22dB


Dimension Light Area
Total U-Value (Inc Upstand)
600 x 600 0.18 1.43
600 x 900 0.30 1.47
900 x 900 0.50 1.49
1000 x 1000 0.67 1.54
900 x 1200 0.73 1.55
1200 x 1200 1.04 1.58
1200 x 1800 1.65 1.61
Suredome Fixed (48.53 KB) Download
Triple Layer Rooflight CAD Drawing (85.74 KB) Download

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Amanda Elizabeth -17/11/2014

Great advice on what sizes were required when contacted over the phone, after extensive research I decided to place my order.

The order was received within 2 days and my builder managed to fit it without any issues, the product itself is fantastic quality, the rooflight is a very nice design, and looks great from below with plenty of light. It has definitely transformed our kitchen extension.. Looks great!

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