免费屋顶瓦片计算器
计算所需的屋顶瓦片数量，以方和捆为单位，输入屋顶面积和损耗系数即可。
Total roof surface area including pitch
10% for simple roofs, 15% for complex
Total length of ridges and hips
Bundles (3 per square)
66
Bundles (3 per square) vs Roof Area
公式
## How to Calculate Roof Shingles ### Formula **Squares = Roof Area / 100** **Bundles = Squares × 3** A "square" of roofing is 100 square feet. Most asphalt shingles come 3 bundles per square. For ridge caps, one bundle covers approximately 35 linear feet of ridge or hip. Always add 10-15% for waste and starter strips.
计算示例
A roof with 2,000 sq ft of area, 10% waste, and 40 ft of ridge line.
- 01Adjusted area = 2,000 × 1.10 = 2,200 sq ft
- 02Squares = 2,200 / 100 = 22 squares
- 03Bundles = 22 × 3 = 66 bundles
- 04Ridge cap bundles = 40 / 35 = 1.14 → 2 bundles
- 05Underlayment rolls = 2,200 / 400 = 5.5 → 6 rolls
常见问题
What is a roofing square?
A roofing square is 100 square feet of roof area. It is the standard unit for ordering shingles, underlayment, and estimating roofing costs.
How many bundles of shingles per square?
Most standard 3-tab and architectural shingles come 3 bundles per square (100 sq ft). Some heavy designer shingles may require 4 or 5 bundles per square.
How many nails per shingle?
Standard installation uses 4 nails per shingle (6 nails in high-wind zones). A typical square of shingles requires about 320 nails (480 in high-wind areas).
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