Roof Anatomy
What is Dormer?
Roofing Glossary · Roof Anatomy
Definition
A structural element projecting from a main sloping roof, containing a vertical window or group of windows. Dormers add attic headroom, natural light, and curb appeal to homes, but each dormer also creates additional valleys, flashings, and complex intersections that require careful weatherproofing during a roof replacement.
Related Roofing Terms
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ValleyThe internal angle formed where two sloping roof sections meet, creating a V-shaped channel that dir...
→FlashingThin strips of impervious metal — typically galvanized steel, aluminum, or lead — installed at joint...
→RidgeThe horizontal peak at the very top of a roof where two sloping surfaces meet. The ridge is the high...
More Roof Anatomy Terms
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