To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above.
Rain water deflection on roof.
Due to the deformation extra rainwater flows to the lower area of the roof resulting in a larger loading with a larger deformation resulting in more rainwater flowing towards this area etc.
Because these roofs don t drain water that well they are prone to developing what is known as ponding water.
Those pitched roofs have a natural slope where the water can run down draining off the roof.
Rain barrel supplies list.
Gutters and a downspout.
In a heavy rain the spouting from a part of the upper roof drains to another piece of spouting which lies on the garage roof and empties in to the garage spouting.
I added hallway off the edge of roof to add another room the roof is covered with a metal roof tin nut hallway still leaks off eve inside.
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 183 39 99 39.
Sand underside of flashing with 80 grit sandpaper to help paint adhere.
Spray paint bottom surface and up turned edge of flashing to match color of roof.
Roof rain diverter installation steps.
If your house lacks gutters rain that s pouring off the roof will give you a good soaking when you come and go.
There is a splash guard at the end of the spouting coming down to the garage spouting.
Cut flashing in half using aviation snips.
This prevents the water from rolling off the roof uncontrolled and running down the side of the building which could damage the siding windows and foundation.
They catch rainwater as it rolls off the edge of the roof and divert the water into a downspout that dispenses it a safe distance from the foundation of the building.
Use flat pry bar to loosen stuck roof shingles.
Will dowdy july 19 2019 at 6 35 am.
Rainwater ponding occurs by deformation of flat roofs caused by rainwater.
If you don t already have rain gutters on your house this one time investment is.
Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water.
Apply a dab of silicone caulk to the vertical slots in the shingle tabs above the diverter to ensure that water doesn t seep under the top edge of the metal.