Mix one part bleach to ten parts warm water in a bucket. Pour the bleach mixture onto the stained or mossy area and leave for fifteen minutes to half an hour. If required, use a medium-bristled brush to rub the solution into more stubborn stains.
Spray the solution directly onto the driveway. Allow the solution to sit on the area for around 20 minutes. Then, wash it off thoroughly with water. Wait for a few hours for the moss to die. Then, use a scrubbing brush to lift the dead moss off the driveway.
Mix around 20 ounces of bleach with 5 gallons of water. Add the mixture to a garden sprayer and apply it to the surface. Once covered, give the surface a good scrub. Leave for 15 minutes until the moss has turned yellow. Rinse off the area with a pressure washer (or garden hose).
Clear the area of any objects. Use a metal brush to remove all the moss leaves. Brush block paving cleaner into the surface. Use a pressure washer to rinse the area.