Simple Roof Water Collection Systems

Rainwater is collected from your roof and stored in a tank until you need it.

Simple roof water collection systems.

Here s how to build a rainwater collection system. Rainwater collection systems can be as simple as collecting rain in a rain barrel or as elaborate as harvesting rainwater into large cisterns to supply your entire household demand. Rainwater harvesting systems can be as simple as a rain barrel for garden irrigation at the end of a downspout. 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.

This rainwater harvesting system uses a typical water storing barrel but attaches two funnels on the top on either side of the barrel for maximum water collection. Rainwater harvest calculator length. To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. The system collects rain water from a simple adapter made to fit our existing barn s gutter.

Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall. Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. A 32 section of guttering runs along the bottom of each side of the metal roof slanted slightly to carry all of the water to the eastern side of the barn. The medium sized rain water collection system.

The idea of rainwater harvesting usually conjures up images of an old farm cistern or thoughts of developing countries. Obviously if only one side of. Don t let all that water go to waste. It requires only a garbage can and a few simple hand tools.

In other words regardless of the pitch of the roof the effective collection surface is the area covered by collection surface length times width of the roof from eave to eave and front to rear. Neat and efficient and not taking too much space this is a system you can build. This rain barrel is very simple to make. The barn has a standard gabled metal roof measuring 13 wide x 32 long on each side.

Rainwater harvesting systems can be as simple as directing gutters to a lidded garbage can or as complex as a concrete cistern roof washer and filtration system.