Roof For Water Collection

Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.

Roof for water collection.

There s just a short list of rooftop surfaces that rainwater harvesters should avoid. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. Around 600 gallons of rainwater can be harvested from about one inch of rain if it falls from a thousand square foot roof.

Dirt and germs can be washed into collected rainwater from the roof especially when rain follows several days of dry weather 3 4 9. 1 of rain on 1 000 sf roof will yield 623 gallons. Roofing materials gutters piping and storage materials can introduce harmful chemicals like asbestos lead and copper to the water though building standards minimize some of this 6 8. That is why my husband and i began harvesting our rainwater.

The good news is most roofing materials are suitable for rainwater harvesting. Roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. The water is collected in the gutters moves through the downspouting and then finally collects in some sort of storage container. Depending on what kind of metal roofing you get affects the price but they are all great for collecting rainwater.

The cistern typically located underground may be constructed of various materials including cinderblock reinforced concrete or precast concrete fiberglass or steel. Installing a metal roof that is galvanized is a great investment. They are covered with a zinc layer that seals the metal and iron from getting into your water. Typically a roof acts as the main collection source.

Traditionally this involves harvesting the rain from a roof. Rainwater collection calculation formulas and equations. For example on a 2 000 square foot roof you can collect 2 000 x 0 56 1 120 gallons inch of rain. You can make a rainwater collection system for under a hundred dollars and store hundreds of gallons of water to use for your garden or other purposes.

Read down the list for info on roofing materials for rainwater harvesting. Rainwater harvesting is the process of collecting run off rainwater from a building in order to store it for later use. Roof area m2 x precipitation amount mm amount collected liters. While metal roofing or plastic sheeting e g.

Greenhouse roof has the highest collection efficiency most surfaces are a ok. If your average rainfall was 25 inches year your annual collection potential is 1 120 x 25 28 000 gallons year. Well we thought so too. The cistern supplies water to the household through a standard pressurized plumbing system.