FAQ
Answers to the most common questions about the calculator and rainwater harvesting.
How much rainwater can I collect?
RainTact calculates it from the precipitation data for your location, your roof area and your roof material, and shows the result per year and per month.
Do I need to create an account?
No. You can buy a single report without an account. To buy report packages you need to create an account.
What does the rainwater report contain?
You get your annual result, month-by-month results, charts, roof information and clear comparisons.
How quickly do I get my report?
The report is generated automatically and becomes available immediately.
Can I calculate rainwater for any location?
Yes. Enter an address or coordinates for the location you want to calculate.