How to Determine Roof Pitch
The angle, or pitch, of a roof is calculated by the number of inches it rises vertically for every 12 inches it extends horizontally. For example, a roof that rises 6 inches for every 12 inches of horizontal run has a 6-in-12 pitch.
Original Article Source Credits: This Old House , https://www.thisoldhouse.com/
Article Written By: Joseph Truini
Original Article Posted on: NA
Link to Original Article: https://www.thisoldhouse.com/roofing/21015547/determining-roof-pitch