measure your roof 20

https://whatisroofingsquarespot.fairmontdigest.com/posts/what-is-a-roofing-square-and-why-it-matters-for-your-project

Before you replace your roof, you'll need accurate measurements to get a proper estimate from contractors or calculate material needs yourself. Grab a tape measure, a notepad, and a ladder—safety first. Measure the length and width of each roof section, noting any dormers, valleys, or hips. For steep pitches, use a pitch gauge or measure rise over a 12-inch run. Multiply the square footage by a waste factor of around 10% for shingles or 5% for metal. Don't forget protruding structures like chim…