Roof Anatomy
What is Skylight?
Roofing Glossary · Roof Anatomy
Definition
A window installed in the roof plane to admit natural light and, in some designs, provide ventilation. Skylights require flashing systems — typically integrated metal curb frames with step flashing — to create a watertight seal around the perimeter. Skylight installation and re-flashing during a roof replacement adds cost and complexity.
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