RB Atkins & Associates | Roofing Services in Bessemer, AL 35020

In our humid climate, roof decking rot is often caused by trapped moisture from small leaks or poor attic ventilation. We start with a thorough inspection to find the source of the moisture. Our repair involves safely removing the damaged decking, ensuring the underlying structure is sound, and installing new, treated plywood. We then address the root cause, like improving ventilation or sealing leaks, to prevent it from happening again.

The dark streaks on roofs are usually Gloeocapsa magma algae, which thrives in our warm, humid weather. For treatment, we use a professional, low-pressure cleaning solution that kills the algae without damaging your shingles. To prevent regrowth, we can install zinc or copper strips near the roof ridge. As these metals wash down the roof with rain, they create an environment that naturally inhibits algae, keeping your roof cleaner for years.

Keep an eye out for a few key signs: dark algae streaks, moss growth, or sagging areas on the roof exterior. Inside, check your attic for water stains, soft spots in the wood, or a musty smell, which can indicate decking rot. We recommend a professional inspection at least every two years, especially after severe storms common to our area, to catch small issues before they become major, costly repairs.