In residential construction, the use of dormer windows ... The roof on a gambrel dormer features a gable at the peak of the roof, but then descends into two steeper roof slopes on the sides ...

Design & Construction. “However ... What’s the Difference Between a Dormer and a Gable? The words “dormer” and “gable” are often used interchangeably, but they’re pretty different ...

The most common is the gable-fronted dormer window ... Bear in mind, too, that a new dormer window is subject to building regulations whether or not you require planning permission.