Roof Rainwater Collection System

Rainwater collection calculation formulas and equations roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember.

Roof rainwater collection system.

The supplies you ll need to make your rainwater collection system can easily be picked up at a hardware or home and garden store. Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof. A step beyond screens is to add a first flush diverter aka roof washer to your rainwater collection system. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use.

Some states external consider rainwater the property of the state and prohibit its collection so you should consult with your local government for example your environmental quality department or health department before proceeding 2. There s just a short list of rooftop surfaces that rainwater harvesters should avoid. Traditionally this involves harvesting the rain from a roof. 1 of rain on 1 000 sf roof will yield 623 gallons roof area m2 x precipitation amount mm amount collected liters.

Pipe threads so you can access water from your rain barrel. Read down the list for info on roofing materials for rainwater harvesting. Rainwater collection is not allowed in all places. The good news is most roofing materials are suitable for rainwater harvesting.

To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. A system of gutters and downspouts directs the rainwater collected by the roof to the storage cistern. Figure out what you already have on hand then gather the following supplies. Some said they d never want to rely again on those old time methods of getting water.

The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. A first flush diverter is a contraption that redirects the first purge of water coming from the roof during a storm away from the rainwater tank. Many folks shared memories of rainwater collection system rain barrels cisterns hand pumps and drawing water with a well bucket as a child usually on grandpa and grandma s farm. 1 standard 1 inch hose spigot with in.

While metal roofing or plastic sheeting e g. Earthminded diy rain barrel diverter and parts kit water collection system to convert containers into rain barrels catch rain water for outdoor chores rbk 0001 4 6 out of 5 stars 644 31 98 31.