In addition to monitoring runoff from these three roof materials runoff from a green roofing module as well as a white roof were included.
Roof material for rainwater harvesting.
There is very little water loss with tin around 5 and no worries of contaminants leaching out from the tin with an approved nsf 61 coating.
A recent report from the texas water development board entitled.
Use rubber galvanized metal or aluminum for flashing and vent seals and stay away from lead.
One of the main reasons is their uneven surface it makes it harder for soot and other pollutants and dirt to gather on top of it.
Asphalt shingles are the most common material used on roofs and luckily they are also a very good option when it comes to rainwater harvesting.
Elastomeric paints are specialty roof coatings specifically for rainwater harvesting.
Tin tin is one of the best rainwater harvesting roof materials to have on a project.
Choosing the best roofing material for rainwater harvesting while a number of base materials like asphalt slate or tile roofs can be used as rainwater collection catchments metal roofs are often the preferred system.
Effect of roof material on water quality for rainwater harvesting systems looked at the effect that different roof treatments have on the water quality of collected rainwater.
I suggest that you use whatever roofing material that you want except lead and perhaps thatch i can find no data on thatched roof rainwater runoff quality.