Sometimes the gutters you ve installed are simply too small.
Slow water down on roof.
3 use the water that drains off your roof.
Fill it with gravel to slow the runoff and allow the water to seep into the soil.
The force of the plunger may clear the obstruction in the main stack.
These roofs also shed snow more effectively.
It will just roll off the side allowing the roof to dry faster.
Dab roofing cement on the nail heads under each shingle tab and in any gaps between the shingles to keep water from getting underneath the diverter.
Press the shingles down to seal them back in place.
Let s say you ve inspected the roof and found no debris.
Steep roofs also tend to be more effective in shedding water the rain can t pool on a roof with a high pitch.
I do suggest hanging gutters as high as possible so that water does not over shoot them.
You can also slow water to a standstill by catching it and storing it for use.
And you ve measured the pitch and tilt and everything looks well balanced o k now ask yourself.
Do your gutters often overflow during heavy rain.
If not use a sewer auger to clear it.
A 1 000 square foot roof can produce more than 600 gallons 2 271 2 l of runoff for every 1 of rain that falls on it.
Turn off the water look for drains or toilets that are backing up and plunge them.
They can t handle the amount of rainwater flowing down the roof.
When installing a metal roof that has considerable formed thickness to is such as a shake or tile profile using 6 gutters would work better than 5 again to keep water from overshooting them.
Installing a rainwater tank to catch runoff from the roof o your property and other buildings you may have on the plot gives you access to a regular supply of water that is not dependent upon the mains system.
That means less chance that mold and mildew will grow and a longer lifespan for your roof.