Rain Collection Roofs

Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.

Rain collection roofs.

Rainwater collection calculation formulas and equations roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. A high quality enameled roofing material that is easy to clean standing seam metal offers the highest collection efficiency available. Rain barrel supplies list.

Collection roof systems are commonly built in two different designs. Traditionally this involves harvesting the rain from a roof. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. 1 of rain on 1 000 sf roof will yield 623 gallons roof area m2 x precipitation amount mm amount collected liters.

Single roof and the double wing design. 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. To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above. Both work well for collecting rain water.

The materials used to build the collectors are readily available at most building centers. Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water. Don t let all that water go to waste. 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.

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. 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. The medium sized rain water collection system. When you look at the numbers it s surprising how much water you can collect every time it rains.

Your roof needs to be able to withstand the weight of heavy snow and rain. In 2016 house bill 16 1005 was passed allowing residents to collect rainwater from a catchment system on their rooftops into two rain barrels with a combined capacity of 110 gallons. A metal roof for rainwater collection is a prime choice especially when the appropriate paint system is incorporated. When designing a rainwater collection you have to consider its durability.

If you re installing a new roof for the purpose of collecting rainwater standing seam metal may very well be your best choice.