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.