Rainwater Collection Roof System

The use of toxic materials such as lead flashing for tile roofs should be avoided.

Rainwater collection roof system.

External j environ qual. Don t let all that water go to waste. Greenhouse roof has the highest collection efficiency most surfaces are a ok. Rainwater harvesting is legal in illinois but with two major statutes.

External j amer water res assoc. How much rainwater can you harvest from your roof. Health risks associated with consumption of untreated water from household roof catchment systems. 1 of rain on 1 000 sf roof will yield 623 gallons.

Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. Microbiological quality of roof harvested rainwater and health risks. This means a metal roof rainwater collection system will produce water with less of the disease causing microorganisms.

House bill 991 2011 amended the homeowners solar rights act it requires that within 120 days after a homeowners association the association shall adopt. Potable rainwater collection systems utilize a variety of roofing materials as collection surfaces. 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. Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof.

Metal roofs provide the cleanest and most efficient surface. Galvanized metal roofing especially is recommended for rainwater harvesting because the panels will be coated with a later of zinc which seals the metal panels prevents rusting and lowers the levels of iron in your water. There s just a short list of rooftop surfaces that rainwater harvesters should avoid. Rainwater collection in washington state outlines the department of ecology s 2009 policy decision allowing rainwater collection and reuse systems and has many useful links.

While metal roofing or plastic sheeting e g. The good news is most roofing materials are suitable for rainwater harvesting. Ahmed w gardner t toze s. Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.

Other materials such as tile and composition shingles are successfully used. The idea of rainwater harvesting usually conjures up images of an old farm cistern or thoughts of developing countries.