Identify your window size

CB Roof windows for VELUX, FAKRO and RoofLITE can easily be identified by opening the window and taking the reference number from the top of the sash. The manufacturer's plates vary in design but are all easy to read and decipher. It's mainly a case of deciding what to ignore! Use the illustrations below to help identify the reference for your window.

VELUX windows

VELUX window references come in two parts: 1 = type, 2 = size

FAKRO windows

FAKRO window references describe the pane size: 3 = size

RoofLITE windows