About RoofCal

Revolutionizing Roof Calculations

Built by professionals, for professionals. RoofCal delivers accurate, reliable roof calculations that contractors and homeowners trust for their most important projects.

Our Mission

To simplify and streamline the roof calculation process while maintaining the highest standards of accuracy and professionalism. We believe that every roofing project deserves precise measurements and reliable estimates.

Whether you're a seasoned contractor managing multiple projects or a homeowner planning a renovation, RoofCal provides the tools you need to make informed decisions with confidence.

Precision First

Every calculation is built on industry-standard formulas and verified against real-world project data to ensure accuracy.

Our Calculation Algorithm

Built on proven mathematical formulas and industry standards for accurate roof measurements

Core Formula

Roof Area Calculation
area = length × width × pitch_factor
Pitch Factor Formula
pitch_factor = √(1 + (rise/run)²)
Material Calculation
materials = area ÷ coverage_per_unit
Waste Factor
total_materials = materials × (1 + waste_percentage)

Our algorithm accounts for roof pitch, material coverage, waste factors, and regional variations to provide the most accurate estimates possible.

Pitch Calculation

Automatically calculates roof slope using rise-over-run ratios, ensuring accurate surface area measurements regardless of roof complexity.

Material Optimization

Factors in material dimensions, overlap requirements, and standard installation practices to minimize waste and cost.

Quality Assurance

Validates calculations against industry standards and real-world project data to ensure reliability and accuracy.