If all you need is some minor touchups on roof penetrations or leaks caulking would be the most common solution.
Roof leak chaulk around vent.
Cut the old caulk line.
The roof vent pipe is installed cut through the roof and around the pipe attached to the roof is surrounded with rubber boot as insulation for the gap between the pipe and roof.
On the other hand if you want to make an overall barrier of protection against weathering damage or uv damage to your roof you might need to consider coating or a roof sealant that matches your roof s rood type.
Load the caulking gun to have it ready when needed.
Rusty and cracked collars around the vent pipe can allow rainwater to pool and eventually drip into.
Use the knife blade to scrape the pipe clean and smooth.
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.
Apply a thick bead of lap seal caulk around the seam.
If the rubber boot is cracked rotted away or torn.
Pull back on the plunger of the gun and place a tube of caulk.
Plumbing vent boots and roof vents check plumbing vent boots and roof vents if water is entering from that area to cause the leaking roof.
Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.
Cut away the old caulk from around the vent pipe.
Vent pipe boot overlay slide a new vent pipe boot over the old vent pipe boot caulk seal watch video below new boot shingles replace worn out vent pipe flashing boot with a new one and shingle around it to provide a better roof leak repair.
Position a ladder carefully against the edge of the roof securing the legs from wobbling or the ladder from folding.
How to fix a leaking roof vent pipe.
When this happens the water can seep into the house along the pipe.
How to seal around roof vents 1.
The rubber gasket that surrounds the vent pipe could be rotted.
Look for cracks in the base of flexible rubber flashing or broken seams in metal varieties of vent pipe flashing.