When choosing a deck sealer for humid climates, it's essential to consider factors like moisture resistance, UV protection, and longevity. Humidity can lead to mold and mildew growth, so look for sealers specifically designed to combat these issues. Additionally, the type of wood and its condition can influence your choice. Some sealers offer a natural finish, while others provide a more glossy look. Understanding the application process and maintenance requirements is also crucial for long-lasting protection. Ask Improvi.ai for personalized guidance on selecting the best deck sealer for your needs!