Flat Roof Windows: All You Need to Know

kitchen with flat roof window
(Image credit: getty images)

If you want to get natural daylight flooding into a room under a flat roof, then you will be looking at a flat roof windows. They are a relatively new phenomenon and have grown more common as glazing techniques have improved. 

As with flat roofs themselves, flat roof windows (also known as flat rooflights) are never strictly speaking flat: they are either slightly domed or are installed with a slight slope, usually around 5°, in order to aid rainwater run-off. 

Mark Brinkley

Mark is the author of the ever-popular Housebuilder’s Bible and an experienced builder. The Housebuilder’s Bible is the go-to hardback for self builders; originally published in 1994, it is updated every two years with up-to-date build costs and information on planning and building regulations, and is currently in its 14th reiteration.

He has written for publications such as Homebuilding & Renovating for over three decades. An experienced self builder, his latest self build, a contemporary eco home built to Passivhaus principles, was created on a tight urban brownfield plot.