Summary: Learn how to fit a roof window, prepare an opening and fit a window.
A roof window - or skylight - can be an essential part of a loft conversion, transforming an ordinary attic space into a bright, attractive room. There are two types of roof window: curb mounted and framed-in-place. A curb mounted roof window stands vertical to the roof plane. A frame-in-place roof window fits flush with the plane of the roof.
When planning a roof window there are several important factors to consider.
The framed-in-place roof window is the most common type and the easiest to fit. They are sold in complete kits consisting of the window and the surrounding flashing, which will be made from either galvanised steel or aluminium. The instructions below will give you a guide to installing a framed-in-place roof window into a slate roof.
The method of installation will vary according to the model of window you have bought. To install the window you will need suitable flashing. Many roof windows come with their own flashing kits. Fitting the window will require two people.
Some roof window kits come complete with a prefabricated lining that when fitted provides a neat, finished surround to the window. If this is not the case you will need to line the opening with plasterboard.
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