Rain Water Harvesting On Roof

For single storey homes your roof surface area will often be greater than your floor area unless you have a flat roof.

Rain water harvesting on roof.

Rain water harvesting usually involves larger cisterns or multiple barrel systems that can store enough water to help water landscapes during our long dry summers. Well we thought so too. Building a rain roof as another option to harvest rainwater for home garden or livestock use. Doesn t that sound like a lot of water that you could harvest and use for free.

Specifically this is set up for my rainwater garden area but c. As your roof surface is the catchment area for harvesting rainwater it s important to know how large or small it is so you can calculate how much rainwater you can expect to harvest. Around 600 gallons of rainwater can be harvested from about one inch of rain if it falls from a thousand square foot roof. While metal roofing or plastic sheeting e g.

Sizing a catchment area the size of the catchment area or roof will determine how much rainwater that you can harvest. The area is based on the footprint of the roof which can be calculated by finding the area of the building and adding the area of the roof s overhang. The good news is most roofing materials are suitable for rainwater harvesting. Asphalt shingles many shingles work with rainwater harvesting.

Tin tin is one of the best rainwater harvesting roof materials to have on a project. That is why my husband and i began harvesting our rainwater. There is very little water loss with tin around 5 and no worries of contaminants leaching out from the tin with an approved nsf 61 coating. Simple practices like amending soil with compost mulching and smart watering are the first steps to storing and conserving water.

Rainwater collection calculation formulas and equations roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. 1 of rain on 1 000 sf roof will yield 623 gallons roof area m2 x precipitation amount mm amount collected liters. Calculating your roof surface area. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use.

The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. The rooftop rainwater harvesting is a method from which rainwater is captured from the roof catchments which is then stored in reservoirs and by adopting artificial recharge techniques to meet the household needs through storage in tanks harvested rainwater can be stored in the sub surface groundwater reservoir.