【實用工具app】Square.It|最夯免費app-綠色工廠好玩App

Square app will allow one to measure roof area for square footage. Best results are to do point to point squares take the length and width of each side and multiply on calculator this will give you square footage. IE. 10ft x 10 ft =100 sq ft, and in roofing terms that's 1 square.