Where Does The Rainwater Go From My Roof

While some water can be blown into the attic through almost any type of soffit vent the amount of water intrusion increas es dramatically when the.

Where does the rainwater go from my roof.

Ensure all gutters fall towards the outlets. Dirt and germs can be washed into collected rainwater from the roof especially when rain follows several days of dry weather 3 4 9. Gutters and a downspout. Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water.

Adding chlorine or iodine to water does not protect against chemicals and some parasites are very chlorine tolerant. Rainwater can be collected from most roof types depending on the quality of rainwater required. To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above. Sizing a roof water drain.

The first step in sizing a roof drain is to calculate the surface area of the roof that the drains will be covering as well as the average hourly rainfall rate at the building location. Any trees touching or hanging over the roof should be trimmed back. So a 50 x 20 roof is 600 x 240 multiply the roof dimensions by the number of inches of rainfall. Rain barrels for example do not provide any type of disinfection or filtration.

Make sure your roof is free of debris and does not hold or collect water. Minimizing water intrusion through roof vents in high wind regions 2 of 8 r 7 oofing 12 10 mitigation guidance soffit vents key issues n it is important to keep the soffit ma terial in place. Collect from any roof material except unsealed asbestos. A rain gutter eavestrough eaves shoot or surface water collection channel is a component of a water discharge system for a building.

In this example 600 x 240 x 1 144 000 cubic inches of water divide by 231 to get the number of gallons because 1 gallon 231 cubic inches. Capillary action is a water activity in which water adheres to a surface and follow the surface. For example most ranch style homes have a 3 12 or 4 12 pitch roof. When the roof shingles do not extend past the metal drip edge the water will suck back on the metal drip edge this is called capillary action and run behind your gutters.

After a big storm or a long snowy spell always check. For garden or lawn irrigation. The next step is to determine each roof area that will be served by a separate leader drain pipe scupper or downspout. It is necessary to prevent water dripping or flowing off roofs in an uncontrolled manner for several reasons.

To prevent it damaging the walls drenching persons standing below or entering the building and to direct the water to a suitable disposal site where.