1 square is equal to 100 square feet. Examples where the unit is used are roofing shingles, metal roofing, vinyl siding, and fiber-cement siding products.
FAQ
A depression or hollow resembling or suggesting a valley, as the point at which the 2 slopes of a roof meet.
A gable is the generally triangular portion of a wall between the edges of intersecting roof pitches.
The ridge of a sloped roof system is the horizontal top area where 2 sloped roof areas meet. The National Roofing Contractors Association defines ridge as “the highest point on a roof, represented by a horizontal line where 2 roof areas intersect, running the length of the area.”
A hip roof, hip–roof or hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope (although a tented roof by definition is a hipped roof with steeply pitched slopes rising to a peak)