External vinyl shutters require very little maintenance.
Occasional cleaning may be required to restore the exterior shutters to their original luster and color.
External shutters can usually be cleaned satisfactorily with only the use of an ordinary garden hose. For additional cleaning, we suggest scrubbing gently with a soft bristle brush and a cleaning solution of 1/3 cup detergent (Tide for example), 2/3 cup Tri-sodium (Soilax for example), and 4 quarts water. In geographical areas where mildew is a problem, substitute one quart of 5% sodium hydrochloride (Clorox for example) for one quart of water in the formula.
Start washing from the top of the shutter and work down. Apply cleaning solution and let stand for several minutes on the external shutters in order for the dirt to loosen.
Rinse thoroughly to avoid streaking.