Q: What is a Roofing Square?
A: A “Roofing Square” is a common term used in the roofing industry referring to a unit of measure. In this case, 1 square = 100 square feet regardless of the configuration. It could be 10x10, 5x20, 2x50. They all equal 100 square feet.
For example, you have a 2,000 square foot roof, you would be told you need 20 squares. 2,000 / 100 = 20.
Q: How many Bundles of Roofing Material per Square?
A: Composition shingles, 3 bundles per square.
Wood Shakes, 5 bundles per square.
Wood Shingles, 4 bundles per square.
Q: What about felts?
A: #15 lb felt between 3-3 squares per roll.
#30 lb 18” shake felt, 1 square per roll
Fiberglass base, 1-3 squares per roll
Cap Sheet, 1 square per roll
Modified bitumen, 1 square per roll
Q: Roofing Tiles?
A: Depends, due to the wide variety of available
The most popular configurations require 90
tiles to cover a square
Clay 1-Piece, 80-100 to cover a square.
Clay 2-Piece, 160 or more to cover a square.
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