As a homeowner, you might have noticed your roofing system is stained with black or dark brown streaks. This is actually not uncommon, as this can be found on houses in nearly every neighborhood in the country. You might even mistake these stains for mold, mildew, moss or even tree sap, but that might not be the case. Leading residential and commercial roofing Dynamic Roofing Concepts, Inc., explains here why this happens to some roofs.
This is typically caused by tiny blue-green algae, and when you see the dark stains, it’s not the algae you’re looking at, but the hard, dark coating it generates to protect itself from the UV rays. Gloeocapsa magma (its scientific name) travels through wind, so if your neighbor has it, it’s highly likely that your roof has also been exposed. This is more common in moist environments and can easily get its nutrients from dust in the air. While it doesn’t physically damage your shingled roof, it can still affect your home’s market value if you’re planning to sell it later on.
Of course, there are other methods such as installing zinc and copper on your roofing system, which can help reduce algae growth. You can also use copper-containing granules on the surface of the shingle when you’re planning a re-roofing project. This is also effective, but only for a while; the granules still degrade over time.
Luckily, gloeocapsa magma is both treatable and preventable with GAF’s StainGuard Plus technology. With our Time Release Algae-Fighting Technology, StainGuard Plus uses specially engineered capsules infused throughout with thousands of copper microsites. The copper will always be within reach and ready to be activated to help protect your roof against blue-green algae stains.
As a trusted metal roofing contractor in the area, Dynamic Roofing Concepts, Inc. gets the job done professionally and efficiently. You can contact us at (813) 657-7663 or you can fill out our convenient contact form. We serve our customers in Florida, including Tampa and neighboring areas. Talk to us today!