Chimney Flashing Repair

How To Fix Chimney Flashing Video- Flashing Method

Is your chimney leaking around the flashing area? Looking to learn how to do-it-yourself? Chimney flashing is a very common place to develop leaks on a roof. Repairing chimney flashing can be expensive and not-so-simple to repair. If you are looking for some instruction and tips on how to repair or replace the flashing system around your chimney, the following videos are the best that I have seen.

Me On The Roof of Saint Louis Cathedral New Orleans Louisiana

In areas where there are weather fluctuation with ice in the winter, a straight counter flashing may be a better choice. Straight counter flashing provides less areas for water it get in, freeze and then expand. In the video below the roofer is using led, but other metals will works as well, such as copper and aluminum.

Part one 9 min.

In this video learn how to mark, cut, and fit, a run of counter step flashing. Again, he is using lead but the same process applies regardless of the material being used. Aluminum is the most common metal used for chimney and skylight flashing, with copper being the second most popular choice. Keep in mind that lead is much easier to work with than aluminum because lead is much more pliable.

Flashing systems must be of the highest quality, skylight and wall flashing systems that are custom made by a professional could be the best option. But, if you are looking to fix it on your own, follow these video tutorials.

Part two

There are four general parts to a chimney flashing system:

1. The saddle – this is the flashing on the back end of the chimney. This flashing should extend 18″ onto the roof deck, with a minimum 8″ rising onto the back of the chimney.
2. The apron – this is the flashing that runs along the front of the chimney. This flashing should run 10″ onto the roof deck and a minimum of 4″ up the chimney.
3. Step flashing – step flashing are the small pieces of metal that go between each shingle or slate and onto the brick.
4. Counter flashing – counter flashing is what is being installed in this video below. It’s in a step pattern, but it’s actually covering the actual step flashing, thus the name counter-flashing. This is also knows as the “skirt”

part three

In this video learn how to install the apron on a chimney flashing system. Notice that the apron goes on top of the last run of slate and the counter flashing covers the apron. He is calling counter flashing “soakers,” but that’s just a language difference. If you are installing a flashing system on a shingle roof you can use aluminum, but on a slate roof you want to use copper because of its long life.