A plumber s snake will be able to clear most of the clogs.
													
																	Roof drain pipe clogged. 
									
	
		
	
																	Step 2 snake. 
																	The advantage of this method is that water doesn t back up onto the roof so there s no water to clean up afterward. 
																	Step 1 inspection. 
																	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. 
															
													
									
	
		
	
																	Step 3 hose. 
																	Run the pipe brush into the roof drain all the way to the clog. 
																	When the vent pipe is clogged it shows up within your home in a variety of ways from ghost flushing from your toilet to a sink that won t drain properly. 
																	Your vent pipe can become clogged from a variety of things. 
															
													
									
	
		
	
																	If you have a clog in your roof drain you will need to inspect it first. 
																	Clear any leaves or. 
																	Sometimes a clogged vent will require a professional plumber to open up the walls of your home to get a good look at your drainage system. 
																	Bird s nests debris and rodents are all known culprits for clogging vent pipes. 
															
													
									
	
		
	
																	Because most drain vent pipes are up near the roof sometimes debris from the roof can even clog a pipe. 
																	Turn on the water and make it flow inside the drain at a very high speed. 
																	Keep pushing until you dislodge the clog and flush down with water from the hose. 
																	An alternative for clearing a clog is to use a pipe brush. 
															
													
									
	
		
	
																	Unclog the roof drain using water hose unscrew the cap and feed the hose into the drain. 
																	Roof drain cleaning and maintenance.