how to measure a roof 2

https://getroofingmaterialtakeoffworks.novacrestiq.com/posts/understanding-roofing-material-takeoff-a-practical-guide-for-accurate-estimates

To measure a roof, start by safely accessing the roof with a ladder and harness. Use a tape measure to find the length and width of each rectangular section, including dormers. For complex roofs, multiply the dimensions of each plane and add them together. Remember to account for the roof pitch—the steeper the roof, the more material needed. A quicker way is to square the footprint of the house (multiply length by width for the ground floor) and adjust for the slope, using the roof's rise in in…