Roof flashing is a critical component that protects vulnerable areas of your roof, including vents and chimneys. When flashing deteriorates or is installed incorrectly, it can allow water to penetrate the roofing system and cause interior damage.
However, one cause of flashing failures stands out among all the others: poor installation. Without proper installation, flashing cannot provide effective protection and may serve little more than a cosmetic purpose. It may sound like a small issue, but it’s one that people usually don’t become aware of until it’s much too late to stop extensive damage.
Flashing Is Meant to Be a Seal
Properly installed flashing directs water away from roof penetrations, such as vents and chimneys, preventing moisture from entering the structure. It covers a wider area than just a line of caulking and is better able to withstand bad weather. Without flashing, leaks could form around vents and other fixtures easily.
Flashing also helps keep out pests. The metal is not something pests want to chew on, and the relatively wide (when compared to simple caulking) swath of flashing provides better protection and sealing power.
Poor Installation Is a Major Cause of Problems
Flashing can do its job very well if it’s been installed properly. Poor installation, however, makes it harder for the flashing to keep water and pests out. The flashing may be too loose, for example, or it may not be sealed in some spots.
The problem gets even worse if the home’s foundation shifts. The minor deformation of the house’s frame and roof may be unnoticeable to you, but it can be enough to place pressure on the metal and cause it to loosen. If the flashing was already in bad shape due to poor installation, it could come loose.
Leaks Can Go on for a While
Even a small gap in flashing can allow water intrusion. Minor separation may not seem serious at first, but even small openings can lead to significant damage over time.
For example, let’s say the flashing has a tiny gap in the corner that the installer didn’t seal properly. Rain runs into the gap and starts causing minor water damage. This goes on for a while, and the gap slowly opens as the seal around the gap breaks down.
The result is a lot of hidden water damage and potential mold growth over time that you won’t notice until it’s bad enough to seep through your ceiling. By that time, the damage will require extensive remediation.
Don’t wait until you see damage inside your home. Have your roof vents and flashing inspected regularly by calling Ribas Roofing in Atascadero, CA for roofing repair services.