Roofing / Apex roof junction
Ridge
/rɪdʒ/noun
From Old English hrycg, “spine” or “back.”
Definition
The highest horizontal line of a pitched roof, where two sloping roof surfaces meet; also the board or beam that runs along that peak.
Fig. 84 — Ridge: schematic studyNOT TO SCALE
Illustrative study — Ridge · AI-generatedSAMPLE IMAGE
Photo study — Ridge · AI-generated00:06
Structural & construction notes
A structural ridge beam carries the upper ends of the rafters and stops them pushing the walls outward. A plain ridge board only lines the rafters up, so ceiling joists or ties must resist the spread. Ridge vents let warm attic air escape.
An educational reference. Project-specific design requires professional guidance.