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You take the footprint of the rainfall (length feet multiplied by the width feet) and multiply by the rainfall feet ( inches divided by 12). This is your volume. Take this number and multiply it by 7.48 to determine the gallons of water! You forgot to add in the volumetric runoff coefficient. this is measured by: VRC= 0.05 +0.009(% imperviousness)
What else can I help you with?
How do you find square footage of a roof with pitch?
The site below that explains the pitch - how to measure it with a calculator to use with pitch and calculate the total footage of your roof
How can a homeowner calculate the size of their roof?
Use the square footage of your house, and the size of your roof should be about the same. Be carefull not to include the yard in the footage or anything that is not covered by the roof, then divide the number by the number of stories your house is.
My home is 1100 square feet what is the roof's square footage?
You cannot calculate the square footage of a house roof like this (unless you have a flat roof). The simplest way would be to go up on your roof and measure its different surfaces, however if you dont want to do that, you would need to know several differen things to calculate the surface area -- such as the pitch and angel -- how much hangover you have. Basically you should save yourself time and go up on your roof and measure it
How do you calculate the square footage of a cottage style roof?
I'm assuming by "cottage style roof" you mean the shape which is sort-of achieved by using two trapezium shapes to depict the front and back of the roof (shorter edge being the uppermost edge) and then using two triangles for both the sides. (A trapezium shape is like half a hexagon). If this is the case, you calculate the area of the front of the roof by measuring the lower edge of the trapezium/roof and adding that measurement to the upper edge of the trapezium/roof, dividing by two, then multiplying by the distance between the upper and lower edge. (I.e exactly the same as finding the area of a trapezium). Assuming the back of the roof is the same, multiply the "front of the roof" measurement by 2. This gives you the area of "front and back of roof". To include the sides of the roof, measure the lower edge of the triangle-like shape and multiply by the vertical height. Add this measurement to the "front and back of roof measurement" to get "total area of roof". If you have kept all measurements in feet during the process, you will end up with "total area of roof in square feet" as required. Of course, it's possible that the roof may not fit the description of specific shapes, in which case it's best to make an estimate then add on a bit extra.
How do you calculate roofing materials - A roof footprint?
You need to estimate the size of the roof in square feet.A bundle of shingles will cover 33 square feet, so divide the square footage of the roof by 30and that's how many bundles of shingles you'll need.The extra 10% will end up getting used as starters and the cap.Shingling a roof isn't difficult, complete directions are printed on every bundle.But if you've never shingled a roof before you might want to pick up a couple of extra bundles.You can always return them after.
What is water runoff?
Runoff water is the water flow that happens when soil is unfiltered to full capacity and all the extra water such as rain or melted water
What is sloping roof?
A roof that is pitched off horizontal to allow the runoff of water, snow, or ice.
Is it illegal to collect runoff from your roof?
No it is not illegal to collect runoff from your roof, because no one owns it.
What are the optimal angles for barn roof construction to ensure structural integrity and efficient water runoff?
The optimal angles for barn roof construction are typically between 30 to 45 degrees. These angles help ensure structural integrity by distributing weight evenly and promoting efficient water runoff to prevent pooling and potential damage to the roof.
How much water runoff would there be if you have a 9 pitch roof covering 1248 square feet?
How hard is it raining?
How would you use the word runoff in a sentence?
The runoff from the roof filled the rain barrel. The runoff from the strip mine killed the fish in the stream.
The hailstones pounded the roof during the storm?
The hailstones struck the roof loudly during the storm.
Function of a downspout in a roof drainage system?
To receive the storm water from the roofing surface and dispose of the water in a place unobjectionable
What are noun phrases for water?
Examples of noun phrases for the noun water:The water is cold.Can I have some water?The water all over the kitchen floor will have to be mopped up.This barrel collects the water runoff from the roof.
How do you build a rain drain to divert roof water away from the house?
You don't, a roof drain is nothing more then a conductor that allows water to enter the storm water piping and then the piping leads to a place of disposal.
Did the shingles blow off the roof during the storm?
Yes, the shingles blew off the roof during the storm.
How does a rain catcher work?
The barrel is placed underneath a shortened downspout, diverting the roof runoff into the rain barrel catching the rain water from the spout.
