May is deck safety month. Maintaining your deck is key to maximizing its life span. Clean with composite safe mold and mildew cleaners and clean under deck systems. Always check rails, under deck areas, stringers of steps for any pre-mature degradation or loose bolts. White mold can be a sign of fungi that can cause rot, this may need to be treated or replaced. See the below check list from NADRA for other items to assess for deck safety.