Measuring guide for fitting to builders upstand
Measurements stated are the external upstand measurement
Acceptable tolerance = rooflight size +20/-0mm Minimum upstand width: 85mm
Pitch Requirements
Brett Martin Roof Lantern rooflights are intended for installation onto a fully weathered and insulated builders upstand on flat and low pitch roofs. The surface of flat roofs normally require some degree of pitch to ensure adequate water runoff.
For aesthetic reasons we recommend that the upstand is built with 0° pitch i.e. not parallel with the pitched roof surface. The rooflight can accommodate being installed on an upstand with a pitch of up to 5° but please note that this will likely result in a ‘lopsided’ appearance.
Please do not hesitate to get in touch if you had any questions about installation requirements.
Roof Lantern Specification - Data Sheet
Please click here to view the full technical data sheet.
Delivery is free to Mainland UK
Good news! If you live within Mainland United Kingdom, delivery is completely free.
Single-point Delivery
The glass, lantern frame and installation components are all delivered at the same time.
Please note that all Roof Lantern deliveries will be packaged onto a stillage for transportation purposes only. It is your responsibility to unload the Roof Lantern components from the stillage on-site. Once unloaded, the stillage will be taken by the delivery driver.
If required, we can arrange for the Roof Lantern components to be packed onto a special single use stillage which can be left on-site. This does incur an extra cost and can only be arranged if you notify us prior to placing the order.