Roofing Calculator
Calculate roof area, materials needed, pitch, and cost estimates
Your Input
Select a calculation type (area, materials, pitch, or cost), enter measurements and options, then click Calculate to see the result and step-by-step solution.
Πλήρης Οδηγός χρήσης
What is Roofing Calculation?
Roofing calculations help determine the area of your roof, materials needed, pitch, and cost estimates for roofing projects.
Τρόπος Χρήσης
- Select calculation type
- Enter required measurements
- Click calculate to get results
Roof Shapes
- Gable: Two sloping sides meeting at a ridge
- Ισχίο: Four sloping sides meeting at a ridge
- Flat: Horizontal or nearly horizontal roof
Roof Pitch
Pitch is expressed as rise in inches per 12 inches of run. Common pitches:
4:12 - Low slope
6:12 - Moderate slope
8:12 - Steep slope
12:12 - Very steep (45°)
Material Coverage
Asphalt Shingles: 33.33 ft²/bundle
Wood Shingles: 25 ft²/bundle
Tiles/Metal: 100 ft²/square
Waste Factor
Waste factor accounts for cutting, trimming, and material loss. Typical values:
- Simple roofs: 10%
- Complex roofs: 15-20%
- Very complex: 20-25%
Σημαντικές Σημειώσεις
- Measure accurately for best results
- Account for overhangs and eaves
- Consider local building codes
- Get professional estimates for large projects
Κοινές Εφαρμογές
- New construction planning
- Roof replacement projects
- Material ordering
- Cost estimation
- Contractor quotes