This post was updated on April 5, 2026 Hi, I am Scott Paul, a leading exterior restoration contractor and business owner with over 30 years of experience in exterior wood. My RAD Guard Mildew Protection Review is based on my history as a wood restoration contractor and actual hands-on testing, all designed to present you with the top deck stain choices. See here for more info about me. 9.5 Overall Rating RAD Guard Mildew and Algae Cleaner and Preventer We would love to hear from you if you have used the RAD Guard to clean or prevent mildew on your wood or deck. Please post a rating in the Consumer Star Ratings below. If you have any questions about using … Continue reading RAD Guard Mildew Cleaner & Preventer Review 4.8/5 (5)