How To Harvest Rainwater From Roof

Try harvested rainwater for any non potable application.

How to harvest rainwater from roof. For a roof with no gutters position your barrel under the valley of the roof where two sloped planes meet use a decorative rain chain to get water into your barrel. To find one check with companies that buy food ingredients in bulk. Annual rainfall in millimetres x roof surface area in square metres roof catchment capacity. Catchment surface the catchment surface refers to the roof which will collect rainwater.

The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. Traditionally this involves harvesting the rain from a roof. How to harvest rainwater from your home. Harvesting rainwater from your home is easier than you might think.

Whether you re working with existing conditions or spec ing out a brand new roof we ve got expert advice for you. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. If you want to collect rainwater without a roof or downspout you can use a tarp instead. Generally the bigger the better as more square footage will allow you to store more rainwater.

If you re thinking about rainwater harvesting also known as roof water harvesting you may be wondering about the best roofing materials for rainwater collection. To collect rainwater you can attach a rain barrel to your home s downspout so when it rains the water flows directly into the barrel. Make a rain barrel if you have gutters and downspouts on your house or garage you have a fantastic system for harvesting soft clear rainwater for the garden. This is an important figure to understand so you can design a rain harvesting system and choose a tank size that will meet your water volume requirements.

It is likely that your home will already be fitted with guttering around the edge of the roof and a downspout which will carry the water that falls on your roof down to the ground. Just lay the tarp out on an elevated area and run a drainpipe from the lowest corner to a collection tank. You will need 7 basic components to harvest rainwater. This capacity can be calculated using the following formula.

The only missing piece is a collection reservoir otherwise known as a rain barrel. Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof.