Step 1 inspection.
Unclog drain from roof.
Top 10 ways to unclog your roof drain.
If you have a clog in your roof drain you will need to inspect it first.
How to unclog clean a roof drain.
Roof vents generally don t have gas traps that introduce tight turns so working from your roof might give you easier unobstructed access to the main drain.
Step 4 pipe brush.
Step 5 clean the roof drain.
Basic method drain snake water hose pipe brush sewer jetter blow bag hot water wet vacuum high power suction machine professional help.
Here is have a small compressor with a regulator which can control the air pressure so using the regulator i like to keep the pressure at around 30psi.
Step 2 snake.
Clear any leaves or debris from around the drain.
Steps to unclog a drain from the roof get yourself up on your roof using a ladder that is properly secured remove the vent pipe cap if required inspect the inside of the vent pipe with a bright flashlight grab the debris if you can see it and test your pipes if you can t see the clog grab your.