Gambrel roof
A gambrel roof (also known simply as a gambrel), is a type of two-sided roof that is characterised by vertical gable ends and two slopes on each side. The upper slope is of a shallower pitch than the lower slope which is steeper.
It is similar to a Mansard roof but differs in that it is not hipped, but has vertical gable ends instead. It also typically overhangs the building façade, whereas a Mansard does not.
The etymology of the name is from ‘gamba’, a Medieval Latin term meaning ‘horse’s hock’ or ‘leg’. It was a design that was commonly used for barns and domestic roofs in America.
The advantage of the gambrel roof design is that it can provide an elegant aesthetic and allows for increased storage or living space beneath its steeper sides. It maximises headroom inside the upper storey of the building whilst lowering, what would if it were simply-pitched, be a very tall roof.
[edit] Find out more
[edit] Related articles on Designing Buildings Wiki
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
National Planning Policy Framework
Understanding the 2026 changes.
ECA's public affairs priorities
Member consultation opens to shape priorities for 2027 to 2030.
Dutyholder responsibilities from 1 July 2026.
Where performance meets practice
The Building Envelope Stage at UKCW Birmingham.
CIAT publishes briefing on planning reforms.
Leaders in Learning for Practice Network
Call for conservation leaders in learning to register interest in new network.
The importance of early engagement
Construction lessons from the Trillium HealthWorks Experience Centre.
Mayors are to be given planning call in powers
Mayors across England will be able to make the most important planning decisions.
The Master Builder: William Butterfield and his times. Book review.
Why construction can't afford to ignore the skills gap.
Building Safety Regulator, 19 August
Gill Kernick appointed Independent Chair of Residents’ Panel.
Connecting knowledge, technology and conservation
Building competence for the future of built heritage.


















