Bespoke Sizes National Domelight

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Modern and stylish circular flat glass rooflight design suitable for mounting direct to a builder’s upstand, or with robust insulated GRP kerb for new build and refurbishment applications.

Brett Martin Circular Glass rooflight to suit a builders timber kerb is a premium round rooflight specified for its distinct styling. This contemporary glazing unit gives a clean internal appearance, a minimal unobtrusive exterior and allows daylight to spread evenly through an interior space.

  • Aluminium Frame Poweder coated RAL 7016 thermally isolated to provide excellent thermal performance.
  • 4 Standard sizes Available in 5 - 7 working days. Bespoke sizes available on request (extended lead time
  • Non- Fragile to CWCT TN-67 for class 1 roofs and Class B non-fragile to ACR001
  • Top only rooflight for fitting to a weathered builders timber kerb

Delivery to mainland UK only in approximately 5 - 7 working days. 

Off-loading is the responsibility of the buyer.

Measure external builders upstand

Acceptable tolerance:

  • Fixed rooflight = rooflight size +20 / -0mm

Rooflight should be installed at a minimum pitch of 2° to ensure adequate water runoff.

Tested to be non-fragile to CWCT TN-67 for class 1 roofs and Class B non-fragile to ACR[M]001 when new and fully installed to Brett Martin Daylight Systems installation guides

Ur Value as low as 1.16 W/m2K

6mm toughened outer, a 90% argon filled cavity, with a laminated inner (including PVB interlayer). All double glazed units include a soft coat Low E coating.

For full data sheet please click here 

For Installation details please click here

Brett Martin Circular Glass units are expected to remain fit for purpose in normal industrial conditions for a period of 20 years (with a warranty availble providing a 10 year guarantee), i.e. they will not become perforated, lose significant structural integrity or distort to the extent of losing weather-tightness. Insulated glass used in the construction of the rooflight is guaranteed for 5 years.

Brett Martin Circular Glass to suit a Builders Kerb


£991.67 Ex VAT



£1,190.00 Inc VAT

All Brett Martin rooflights are manufactured to order and therefore cannot be returned. Please ensure the size and spec is correct before submitting your order. There will need to be people on site to offload the unit on the day of delivery.

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