Rainwater Collection Roof System

External j amer water res assoc.

Rainwater collection roof system.

Other materials such as tile and composition shingles are successfully used. How much rainwater can you harvest from your roof. T he green infrastructure for clean water act which relates to water conservation efficiency infrastructure and management while promoting rainwater harvesting. 1 of rain on 1 000 sf roof will yield 623 gallons.

Potable rainwater collection systems utilize a variety of roofing materials as collection surfaces. 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. The good news is most roofing materials are suitable for rainwater harvesting. Greenhouse roof has the highest collection efficiency most surfaces are a ok.

To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. Ahmed w gardner t toze s. Rainwater harvesting is legal in illinois but with two major statutes. Microbiological quality of roof harvested rainwater and health risks.

Don t let all that water go to waste. 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. 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. External j environ qual.

House bill 991 2011 amended the homeowners solar rights act it requires that within 120 days after a homeowners association the association shall adopt. Research indicates rainwater is safe for irrigating vegetables read the recent research from australia and wa dept. The idea of rainwater harvesting usually conjures up images of an old farm cistern or thoughts of developing countries. Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.

The use of toxic materials such as lead flashing for tile roofs should be avoided. Metal roofs provide the cleanest and most efficient surface. There s just a short list of rooftop surfaces that rainwater harvesters should avoid. While metal roofing or plastic sheeting e g.

Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. Health risks associated with consumption of untreated water from household roof catchment systems.