Roofing / Roof slope measure
Roof pitch
Definition
The steepness of a roof, written as inches of rise per 12 inches of horizontal run, such as 6:12.
Fig. 266 — Roof pitch: schematic studyNOT TO SCALE
Structural & construction notes
Pitch decides which roofing materials are allowed, how much attic space is created, and how an addition will match the existing house.
Frequently Asked Questions
An educational reference. Project-specific design requires professional guidance.