Glossary

Dormer

A dormer is a roof extension that projects vertically from a sloped roof and typically contains a window. Dormers increase natural light, ventilation, and usable attic space. They also enhance architectural appearance. Proper flashing and waterproofing are critical to prevent leaks around dormer structures.

Glossary Categories View All Waterproofing & Protection Systems Ventilation & Insulation Systems Skylights, Chimneys & Penetrations Roofing Services & Installation Roofing Materials & Shingle Systems Roof Structure & Framework Roof Damage & Maintenance Issues Drainage & Water Management Compliance, Warranty & Industry Standards Advanced Roofing Systems & Performance Concepts