Rain Collection Roofs

To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches.

Rain collection roofs.

The materials used to build the collectors are readily available at most building centers. Single roof and the double wing design. Traditionally this involves harvesting the rain from a roof. If you re installing a new roof for the purpose of collecting rainwater standing seam metal may very well be your best choice.

Pre and post tank water filtration plays a role as a downspout filter package filters out large particles before the roof water even hits the tank. Your roof needs to be able to withstand the weight of heavy snow and rain. Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof. Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.

The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. Collection roof systems are commonly built in two different designs. Many rainwater collection systems have a three fold filtration whereby the water must first pass through three filters uv light and a charcoal block before it is drinkable. Rain barrel supplies list.

To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above. Rainwater collection calculation formulas and equations roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. Both work well for collecting rain water. When you look at the numbers it s surprising how much water you can collect every time it rains.

Don t let all that water go to waste. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. The collected rain must be used on the property where it is collected and may only be used for outdoor purposes such as lawn irrigation and gardening. 1 of rain on 1 000 sf roof will yield 623 gallons roof area m2 x precipitation amount mm amount collected liters.

A metal roof for rainwater collection is a prime choice especially when the appropriate paint system is incorporated. A rainwater collection roof also needs to be designed with an easy path for the water to follow ideally using steep sloped roof. Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water. When designing a rainwater collection you have to consider its durability.

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.