How many bundles of three tab shingles are contained in a square of roofing?

The correct answer, three, is based on the standard measurement used in roofing. A square of roofing, which covers an area of 100 square feet, typically requires three bundles of three-tab shingles to adequately cover that area. Each bundle of three-tab shingles usually covers about 33.3 square feet, which means that it would take three bundles to cover the full 100 square feet in a square. This understanding is critical for contractors to determine the quantity of materials needed for roofing projects accurately.

In roofing calculations, it is essential to consider the coverage area of each bundle of shingles. Since a square is a measure of area and roofing materials are sold in bundles that cover specific areas, applying this understanding ensures that the correct amount of material is ordered or purchased, reducing waste and ensuring complete coverage.