Rain Water Collection From Roof

Doesn t that sound like a lot of water that you could harvest and use for free.

Rain water collection from roof.

Rain barrels for example do not provide any type of disinfection or filtration. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. Sizing a catchment area the size of the catchment area or roof will determine how much rainwater that you can harvest. Well we thought so too.

Collecting rainwater is a technique that has been practiced for centuries as an environmentally friendly method to collect rain for distribution in gardens and across landscaping. House bill 991 2011 amended the homeowners solar rights act it requires that within 120 days after a homeowners association the association shall adopt. That is why my husband and i began harvesting our rainwater. 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.

T he green infrastructure for clean water act which relates to water conservation efficiency infrastructure and management while promoting rainwater harvesting. Today houses are built with roof gardens that naturally absorb the rain and grow an insulating layer of grass. Rainwater collection calculation formulas and equations roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. You ll need to clear out an area of your yard to create a depression that s 3 4 ft 91 122 cm deep and as long and wide as you have room for.

1 of rain on 1 000 sf roof will yield 623 gallons roof area m2 x precipitation amount mm amount collected liters. Rainwater harvesting is legal in illinois but with two major statutes. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. Traditionally this involves harvesting the rain from a roof.

Rain water harvesting usually involves larger cisterns or multiple barrel systems that can store enough water to help. A rainwater garden uses runoff water from roofs and gutters to grow vegetation and flowers while filtering out harmful chemicals. Around 600 gallons of rainwater can be harvested from about one inch of rain if it falls from a thousand square foot roof. Or less if you re only gathering from one part of the roof.

Rainwater collection in washington state outlines the department of ecology s 2009 policy decision allowing rainwater collection and reuse.