屋顶面积计算器 — 公式
How to Calculate Roof Area
Formula
Roof Area = Footprint Area × Pitch Factor
Pitch Factor = sqrt(1 + (Rise/12)²)
This method converts the horizontal footprint into the actual surface area by accounting for the roof slope.
计算示例
A building 50 ft by 30 ft with a 6/12 roof pitch.
- Footprint area = 50 × 30 = 1,500 sq ft
- Pitch factor = sqrt(1 + (6/12)²) = sqrt(1.25) = 1.1180
- Roof area = 1,500 × 1.1180 = 1,677 sq ft
- Roofing squares = 1,677 / 100 = 16.8 squares