Specifically this is set up for my rainwater garden area but c.
Rain water on roof.
To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above.
To calculate the runoff from any given rainfall.
If you don t already have rain gutters on your house this one time investment is the biggest cost you ll face.
So a 50 x 20 roof is 600.
Rainwater collection calculator in gallons.
Spreading the flow over the roof in this way will not alleviate the damage that is caused.
Even if you turn the spout adjacent to the slope it will still cause damage to the roofing.
Gutters and a downspout.
Wondering how much rainwater you could collect off your roof.
Allowing the high volume of water to flow over the roof will damage the shingles and cause them to wear prematurely.
Use this rainwater harvesting calculator to find the answer.
Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water.
Earthminded diy rain barrel diverter kit water barrel rain barrel adapter kit includes spigot and downspout diverter for 3 x 4 inch downspouts f rn097 4 6 out of 5 stars 185 39 99 39.
Take the dimensions of the footprint of your roof and convert them to inches.
Things needed metal drip edge table or sawhorses 80 grit sandpaper spray paint to match the shingle color tape measure marker straightedge tin snips ladder hammer galvanized roofing nails silicone sealant.
The collectable rainwater from the roof can be calculated in gallons using this calculator based on the rainfall and area.
Rain barrel supplies list.
Rainwater can be collected from the roofs using the rain water harvesting method.
512 490 0932 501 w powell ln 206 austin tx 78753 harvesting rain conserving water and managing stormwater in texas since 2004.
Building a rain roof as another option to harvest rainwater for home garden or livestock use.
With over 600 gallons of high quality water available from a single inch of rain falling on 1000 square foot surface even an 85 collection efficiency estimated for clay tile will give you a lot of high quality water.
The answer is about 623 gallons.