About RainTact
RainTact makes it easy to see how much rainwater your roof already has.
RainTact
RainTact uses precipitation data for your address together with roof area in square feet and roof material to calculate how much rainwater you can collect.
The calculation
RainTact uses historical precipitation data and its own calculation engine to produce the result.
The result
You get a clear report with annual results in gallons, monthly data, charts and comparisons.
Water self-sufficiency
RainTact wants to make it easier for more people around the world to make use of the rainwater where they live and become more self-sufficient in water.