Metal roofs when it comes to metal roofs as well as roofs in general some of the best options are galvanized metal roofs such as steel and aluminum roofs.
Treated roofs for rain water harvesting.
Roof based rainwater harvesting refers to collecting rainwater runoff from roof surfaces which usually provides a much cleaner source of water that can be also used for drinking.
Zinc or copper treated shingles are common in the pacific northwest to curb mold moss and algae growth on the roof.
Land based rainwater harvesting occurs when runoff from land surfaces is collected in furrow dikes ponds tanks and reservoirs.
This section is divided into three sections to better help you understand the treatment of rainwater.
The first section roofwater quality discusses potential contaminants in rainwater which explains what we are trying to treat for.
There are certain advantages and disadvantages to each roofing material so here are a few considerations about the best and most widely used roofing materials for rainwater harvesting.
Treatment of rainwater ensures that the water will be safe to use.
Some rooftops are treated with biocides.
In order to effectively capture rainwater for redistribution the rainwater collection system must capture up to 25 of the water from impervious or hard surfaces like a roof.