屋根

標準的な密度と施工面積を用い、適切な余裕(ロス率)を考慮した資材数量計算ツールです。

Roof Pitch Calculator

Convert roof rise and run into pitch (X-in-12), angle in degrees, slope percentage and the rafter length multiplier.

Calculate true sloped roof area from building footprint and pitch, plus square feet, roofing squares and a waste allowance.

Calculate asphalt shingle bundles and roofing nails needed from roof area and a waste allowance, using standard trade conventions.

Calculate common rafter length from run and pitch (or rise), including the overhang converted to its along-the-slope length.