What is a GGL Velux?

GGL/GGU INTEGRA® Centre-Pivot Roof Window. The centre-pivot window is a classic and versatile design manufactured in high quality natural pine with the option of a clear lacquered pine internal finish (GGL) or a white polyurethane internal finish (GGU).

What do Velux codes mean?

The VELUX brand window codes are found on the top right-hand edge of the roof window when you open it. The data plate tells you the type of window and the window size shown through the code. As shown below in the example, 304 would be 78cm x 98cm and the bottom window code 4 would be 114cm x 118cm.

How do I know what size Velux I need?

For any replacement Velux windows, there’s a simple way of determining the required size. Located on the top right corner of the frame on your existing window is a plate. This plate denotes the type, size, variant, and production code of your roof window.

Can I fit a Velux window myself?

However, with all this being said, fitting a VELUX window, or any pitched roof window for that matter, is not as difficult as most imagine as the whole job can be completed from inside the home and you could save yourself a tidy sum.

How much gap do you leave around a Velux window?

Leave a 60mm – 150mm gap between the top of the window and the tile for rainwater drainage. You may need to use an angle grinder to cut tiles to fit.

How can I tell what Velux window I have?

You can easily find VELUX window codes on the top right-hand edge of the roof window when you open it. The data plate tells you the type of window it is and the window size shown through the code (as seen below.)

What year is my VELUX?

Every VELUX skylight and roof window features a data plate mounted on the frame. This data plate contains the product serial number, which tells the skylight model, glass type and date of manufacture.

What size is a VELUX GGL 304?

78cm x 98cm
As shown in the above example, 304 would be 78cm x 98cm and the bottom window code 4, would be 114cm x 118cm.

What size VELUX can I have?

They can be made to fit slim, elongated spaces or wide, small spaces. However, the tallest size a Velux window comes in is 180cm, with the shortest being 55cm. The widest size is 134cm and the slimmest size is 47cm.

How much gap do you leave around a VELUX window?