Rain Water Harvesting On Roof

Simple practices like amending soil with compost mulching and smart watering are the first steps to storing and conserving water.

Rain water harvesting on roof.

Traditionally this involves harvesting the rain from a roof. That is why my husband and i began harvesting our rainwater. Sizing a catchment area the size of the catchment area or roof will determine how much rainwater that you can harvest. Specifically this is set up for my rainwater garden area but c.

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

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. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. There s just a short list of rooftop surfaces that rainwater harvesters should avoid. Greenhouse roof has the highest collection efficiency most surfaces are a ok.

The good news is most roofing materials are suitable for rainwater harvesting. Around 600 gallons of rainwater can be harvested from about one inch of rain if it falls from a thousand square foot roof. Asphalt shingles many shingles work with rainwater harvesting. For single storey homes your roof surface area will often be greater than your floor area unless you have a flat roof.

While metal roofing or plastic sheeting e g. Calculating your roof surface area. 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. Doesn t that sound like a lot of water that you could harvest and use for free.

Building a rain roof as another option to harvest rainwater for home garden or livestock use. 1 of rain on 1 000 sf roof will yield 623 gallons roof area m2 x precipitation amount mm amount collected liters.