About Roofing Calculator
A source-transparent roofing planning site built around useful calculators rather than hidden assumptions.
What we do
Roofing Calculator builds simple planning tools for U.S. homeowners who want to understand roof area, roofing squares, material quantities, and broad replacement-cost ranges before speaking with contractors.
How estimates are calculated
We separate geometry from cost assumptions and publish the formulas behind the result. The cost model uses public or publisher-provided U.S. ranges for roofing materials, installation labor, and tear-off. We avoid adding state, pitch, story, or complexity multipliers until we have a sufficiently clear source for that exact adjustment.
Source policy
- Prefer primary sources for definitions and government labor statistics.
- Use clearly dated cost guides for market-price ranges.
- Distinguish employee wages from contractor billing rates.
- Show ranges instead of fake precision.
- Keep unsupported adjustments visible as limitations rather than inventing coefficients.
Corrections
If a cited source changes or you find a calculation error, send us a correction. Significant changes are reflected in the methodology and source notes.
Monetization transparency
We aim to keep commercial relationships clear. If a page contains advertising, affiliate links, or contractor referrals, the relevant relationship will be disclosed and our privacy practices will describe any associated data collection.