The answer to 'roof decking algae growth' is that algae growth on roof decking is a common problem caused by moisture, shade, and lack of airflow. Symptoms include green, slimy growth that can deteriorate the wood over time. Solutions include improving ventilation, removing the algae, and treating the decking with a fungicide or mildew-resistant sealant. In many cases, homeowners can address minor algae growth themselves, but more extensive damage or difficult-to-access areas may require calling in a professional roofing contractor.
Algae growth on roof decking is often a sign of a larger moisture or ventilation issue that needs to be addressed to prevent further damage. Proper roof maintenance and repairs are important to keep your home's structure in good condition.