What is the unit of measure for roofing typically based on?

The unit of measure for roofing is typically based on square footage because roofing materials are assessed in terms of the area they will cover. When estimating the amount of roofing material needed for a project, the total area of the roof is calculated in square feet. This measurement allows for an accurate determination of how many square units of roofing material, such as shingles, tiles, or membranes, are required to complete the roofing system.

Square footage is essential for understanding both the quantity of materials needed and the associated labor costs, as the installation and materials are directly correlated to the area being covered. Additionally, roofing materials are often sold and packaged based on their square coverage, further reinforcing the importance of measuring in square feet within the construction estimating process.