Rainwater Harvesting Roofs

Furthermore it is possible utilise rainwater harvesting of a green roof contrary to claims from other industries.

Rainwater harvesting roofs.

Rainwater harvesting or rainwater collection is the process of collecting the run off water from a structure in order to store it for later use. The good news is most roofing materials are suitable for rainwater harvesting. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. In fact it is quite common to harvest water from green roofs in germany and switzerland.

Greenhouse roof has the highest collection efficiency most surfaces are a ok. The texas manual on rainwater harvesting recommends using between 75 and 90 depending on how efficiently the rainwater harvesting system collects rainfall conversion factor is a factor of 0 62 used to convert the total amount of rain in inches that falls onto the roof area to total monthly gallons of harvesting potential. Rainwater is collected from a roof like surface and redirected to a tank cistern deep pit well shaft or borehole aquifer or a reservoir with percolation. Included are some of the effects of using these types of roofing for rainwater harvesting according to arcsa.

Rainwater collection systems can be as. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. While metal roofing or plastic sheeting e g. There s just a short list of rooftop surfaces that rainwater harvesters should avoid.

Roof types for rainwater harvesting. Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof. Roof material the material of the roof is not as important as contaminants that may be on the roof. Dew and fog can also be collected with nets or other tools.

Traditionally this involves harvesting the rain from a roof. However there are two issues. For the majority of rainwater collection a roof acts as the primary catchment area. There are some important factors about the roof to consider when planning for a rwh system.

Rainwater harvesting rwh is the collection and storage of rain rather than allowing it to run off. Typically rainwater will collect in the gutters move into the downspouts and finally collect in a storage. To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. For the vast majority of tank based rainwater harvesting systems the catchment area is the roof surface.