What Does The Stain On Your Roof Mean?
A roof is not exactly a place where you would expect to see stains. Yet, the reality is that roof stains do happen, and when they do, it is important to understand why. Roof stains can be the result of something as minor as a symptom of where you live or a sign of something more menacing, such as damage. Learn how you can identify stains and what you need to so when you find them.
Algae
The presence of black stains on a roof is often an indication that algae are growing on the surface. While this growth can happen on any roof, structures in the southeast region of the United States are most vulnerable to this sort of roof staining.
Fortunately, algae growth looks worse than it is harmful. However, you do not want to make the mistake of pressure washing these stains off the roof on your own. If you do not know what type of setting to use, the pressure from the washer could damage the roof, so it is best to call on a professional.
Rust
If you notice a deep orange or dark red stain on your roof, there is a good chance that there is a rust problem. A chimney and flashing are two metal parts on a roof that are prone to rust. As the rust on these surfaces progresses, it starts to chip away.
When these tiny bits come in contact with moisture from rain or humidity, they start to stain the roof surface. Depending on where the rust has formed, you need to take this sign as a call to action. Take the chimney, for example. As the rust progresses, the base of the chimney may start to deteriorate. As a result, moisture may seep into these openings and cause extensive damage to the roof.
Mold
Mold on a roof takes shape in the form of a thick green covering. A problem with this type of stain is that since it is often the result of severe algae growth, people will sometimes overlook it as harmless. However, mold that is left unchecked will eventually cause damage.
Particularly when it comes to a roof with asphalt shingles, the mold can eventually corrode the shingles and cause them to deteriorate. Once the shingles are damaged, the roof is no longer effective and moisture problems are soon to follow.
When it comes to your roof, whenever you have something that you do not understand — it is always best to speak with a professional. Contact a residential roofing professional to discuss any roofing concerns you have.
