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.

Rain collection roofs.

If you re installing a new roof for the purpose of collecting rainwater standing seam metal may very well be your best choice. To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. 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. 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. Rain barrel supplies list. 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. Both work well for collecting rain water.

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. A metal roof for rainwater collection is a prime choice especially when the appropriate paint system is incorporated. Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof.

A rainwater collection roof also needs to be designed with an easy path for the water to follow ideally using steep sloped roof. Your roof needs to be able to withstand the weight of heavy snow and rain. Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use. Single roof and the double wing design.

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. Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.

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. To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above. Traditionally this involves harvesting the rain from a roof. Don t let all that water go to waste.

When designing a rainwater collection you have to consider its durability.