Roof Coverage Calculator
Calculate roofing materials needed, coverage area, and costs for your roofing project. Determine shingles, underlayment, and labor costs based on roof dimensions and material type.
Step 1: Roof Dimensions & Materials
Understanding Roof Measurements
Roof pitch affects the actual surface area. A 4/12 pitch means 4 inches of rise for every 12 inches of run. Steeper roofs require more material than flat roofs of the same footprint.
Step 2: Costs & Options
About Roofing Squares
One roofing square equals 100 square feet of roof area. Materials are typically sold by the square. Always include a waste factor (10-15%) for cuts and errors.
Roofing Cost Results
Total Project Cost
Roofing Material Cost Comparison
| Material Type | Cost Per Square | Material Cost | Total Cost |
|---|
Cost Breakdown
Roofing Calculation Formula
Total Cost = (Roof Area ÷ 100) × (Material Cost + Labor Cost) × (1 + Waste Factor)
To calculate total roofing cost: Divide roof area by 100 to get squares, multiply by cost per square (material + labor), then add waste factor percentage.
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