What is a square?
This is a roofing industry term which describes the measure of size or coverage for roofing material or installation work. It is 100 sq ft (10 ft X 10 ft) Example: when a roof is removed (tear-off) a “square” is each 100 sq ft section which must be removed whereas for material a “square is the amount of material required to replace that same 100 sq ft section. On a typical house, the number of “squares” of material required for replacement will be up to 15% higher than the tear-off measure since ridges, valleys and hips require extra material and incur waste.