Roof stains aren’t just eyesores; they also indicate roof damage. However, not everyone is an expert in leak detection and identifying the types of roof stains. Fortunately, R. Campbell Roofing is here to help. Here you’ll find a basic guide to roof stains, what usually causes them and how to get rid of them for good.
Coloration and Discoloration
Black or green stains can indicate algae growth. While algae-related stains are relatively harmless, they make your roof look unkempt – nobody wants a shabby-looking roof! Fungus, lichens and moss are also among the usual suspects when it comes to black or green roof stains. Red or brown stains found near or around chimneys, on the other hand, are commonly linked to rust coming from the roof flashing.
Black stains can also be caused by soot. White stains that sometimes appear on slate roofs are most likely caused by salty rain water. Lastly, water stains or discolorations found on the ceiling may be indicative of a leak. In this case, roof repair services are a must.
Roofing materials interact and react differently to various factors. It’s worth noting that roof stains aren’t always caused by leaks and water damage. For one, asphalt shingles may appear lighter in color due to age and the asphalt granules being washed off over time. Trees and plants can also stain your roof in the form of seeds, berries and other debris.
Roof Stain Removal
Roof stains require specific removal processes. Rust can be treated using oxalic acid. Replacing the flashing and applying a new layer of roof coating can also help keep the stains at bay. Algae stains are cleaned using oxygen bleach or a combination of trisodium phosphate and low-pressure washing. In any case, it’s a good idea to leave the stain removal process to professionals.
Keeping your roof (and your home) aesthetically and structurally sound would also entail regular maintenance and timely roof repair services. You can count on R. Campbell Roofing for reliable roofing. Contact us at (937) 866-1371. You can also get in touch with us by filling out this online form.