Buy the right roof drain dome.
How to keep drain on flat roof from clogging.
This will cause water to back up on the roof and can lead to leakage that runs into the building.
Regularly clean the drains.
How to avoid clogged flat roof drains.
Initially the water will back up out of the drain but eventually the pressure of the water will begin to loosen the clog.
The feet of the ladder should be completely flat against.
Feed your hose down the roof drain until it sits against the clog and then turn it on at full power.
At minimum you should do this.
You can push down with the hose at the same time to help loosen the clog.
Check these secondary overflows to make sure that they are clear and free flowing as well.
The most obvious recommendation is to regularly inspect and clean your roof drains.
Position a ladder against the side of your house that features the clogged roof drain.
How to prevent flat roof drains from clogging.
Flat type roofs with a curb should have secondary over flows so if the primary one clogs up stuff can get off the roof through the secondary over flow.
Scoop debris such as leaves and pine needles from the gutters drains and the top of the.
Leaves can form a blockage or small animals can nest on them.
Your washing machine faucet would be a good choice.
You can use this method in addition to the brush method to completely unclog roof drain.
A roof drain is often used on flat roofs to connect the roof to the outlet pipe.
However they will need cleaning from time to time as they tend to clog.
Hot water is also effective in removing clog than cold water.