The answer to 'patio turning brown' is that a patio turning brown is often caused by a buildup of dirt, debris, and organic matter on the surface. This can lead to discoloration, moss growth, and an overall unattractive appearance. The symptoms include a dull, discolored surface that may appear splotchy or patchy.
The solution typically involves thorough cleaning and maintenance. For a DIY approach, you can use a patio cleaner or pressure washer to scrub the surface and remove the buildup. However, for more stubborn stains or extensive damage, it's best to call a professional landscaping service to assess the issue and provide the appropriate treatment.