Though applying caulk is not a hard job you might not want to stand on top of your roof doing it because the chances of falling down are immense. Instead you can give a call to professional chimney repair expert who can take care of things. Maintaining a chimney is a difficult task with several things to have in mind which you will want to realize and understand.
The collar of the storm
The collar of the storm is a metal which comes small in size. The metal enables in the protection of the chase cover. If the collar of the storm is not installed properly the water will not enter inside the chase.