Roof Material For Rainwater Harvesting

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.

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. A recent report from the texas water development board entitled. Asphalt shingles many shingles work with rainwater harvesting. 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.

Use rubber galvanized metal or aluminum for flashing and vent seals and stay away from lead. 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. Materials studied included asphalt fiberglass shingles galvalume metal panels and concrete tiles. While the material isn t cheap and multiple coats are often required this could be something to consider especially for rooftops that aren t otherwise safe to collect from.

Elastomeric paints are specialty roof coatings specifically for rainwater harvesting. 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.