Roof Cleaning Calculator
Calculate soft wash solution volume and time for roof cleaning.
Total roof area to clean
Optional
How We Calculate This
How the calculation works
Time and solution volume are calculated based on roof area, type and cleaning method.
Coverage rates (m² per hour)
- Soft wash: 15 m²/hr
- Pressure wash: 8 m²/hr
- Biocide spray: 25 m²/hr
Formulae
Time = roof area ÷ coverage rate
Solution = area × usage rate per m²
Water usage varies by method: pressure wash uses most, biocide spray uses least.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify quantities and timings for your specific situation.