UltraSky Guide

Set-out Dimensions

Rectangular double ended rooflights with a width from 1000-2000mm and a length from 1500-4000mm*

25 degree pitch to all four sides

The set-out dimensions of the UltraSky roof lantern are measured to the external wall of the timber kerb. Normally 150 mm high x 70 mm wide (not supplied), and NOT the size of the cut-out in the flat roof

In most cases therefore the dimensions of the lantern are calculated as follows:

Length = Length of hole + (2 x Kerb Width)
Width = Width of hole + (2 x Kerb Width)

Example:

Hole 1000mm x 1500mm
Kerb Width 70mm

Overall Dimensions of Lantern: 1140mm x 1640mm

Our roof lanterns are manufactured on demand and therefore we can