I purchased a plastic flashing assembly from the local home improvement store.
													
																	How to repair leaking roof pipe boots. 
									
	
		
	
																	Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk. 
																	Obtain another rubber seal. 
																	Recaulk the corner flashing if any areas have hardened caulk. 
																	I show how to easily install a perma boot 3. 
															
													
									
	
		
	
																	Remove the old corroded nails and discard. 
																	Now it is time to work on the roof. 
																	Install a nail on each bottom corner of the pipe boot and seal both the new nails and old holes with a small quarter size dab of caulking. 
																	Flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill holes gaps flashing and loose shingles around vent pipe vent pipe boot overlay slide a new vent pipe boot over the old vent pipe boot caulk seal watch video below. 
															
													
									
	
		
	
																	Best way to fix a leaking roof vent pipe this video shows the installation of a perma boot on a residential roof. 
																	Vent pipe rubber boot repair step 1.