I know, I know... when you hear the term "flashing", your mind doesn't immediately jump to roofing! Though you may not know what it is, it is a very important part of the roofing process. Basically, the short answer to describe flashing is it's the material that help prevents leaks and water damage. That alone would seal the deal for me (no pun intended)!
Let me tell you a little more in depth answer to the question, What is Flashing? Flashing is usually an aluminum or galvanized steel material. For flashing to be effective, it must be durable, low-maintenance, weather resistant, and can accommodate movement (due to ever-changing contraction and expansion of roofing materials). It is used to cover joints on the roof and wall construction to prevent water from getting in and causing damage. You may think, well I have flashing but I've also noticed water damage lately. If this is the case, then your flashing has either come loose or is old and deteriorating and needs to be replaced. Now though flashing will last many years, it will not last forever. Over time, extreme weather conditions (freezes, snow, storms, etc) can cause it to be more prone to failure, which is why extreme caution during the installation process is so important.
Flashing is used around dormer windows, skylights, hood vents, pipe vents, chimney, and just anywhere that there is a possibility of water getting in on your roof. So as you have hopefully learned throughout today's blog, flashing serves a pretty important job. Make sure you hire someone who knows what he's doing when it comes to flashing. Flashing is pretty much our last line of defense in protecting our homes from water penetration, so don't skimp on it!
As always, if you have ANY questions on flashing or anything else roofing related, I'd love to talk with you. Now go on and make sure if you have flashing, that it's still functioning as it should; and if you don't have flashing, well you better go hire someone to install it so you don't end up with a leaky roof anytime soon!