屋顶计算器
根据建筑投影面积与坡度，计算屋面方数、瓦片包数、防水垫层卷数和实际屋面面积。
公式与数据最后核对于 — Cosyslabs
输入
Result
Squares
14.8
Shingle bundles
45
Total area
1476 ft²
- Pitch factor
- 1.118
- Underlayment rolls
- 4
- Waste
- 10%
Waste default: 10% — NRCA: 10% standard, 15% for hips, 20% for complex multi-plane roofs.
Diagram
Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.
公式
方数 = (长 × 宽) × √(1 + (坡度/12)²) × (1 + 损耗) ÷ 100
参考资料
Pour-window forecast
Free 7-day forecast from Open-Meteo. Green = safe to roofing. We never share your location.
Related tools & materials
Calculators
Don't forget
- 防水垫层
- 自粘防水膜
- 滴水檐
- 屋面钉
- 屋脊瓦
Also useful
常见问题
用建筑投影面积乘以坡度系数，加上损耗后除以 100。12 × 9 米的投影面积、坡度 6/12 时约为 15 方。
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Cite this page
Cosyslabs. (2026). 屋顶计算器. Rough Estimator!. https://roughestimator.com/zh/roofing-calculator
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