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.