To stay safe suit up in long sleeves pants and safety goggles.
Clean asphalt floor tile.
Fill your low pressure agricultural sprayer with a specialized asphalt cleaning agent.
A water based treatment is the safest since oil may damage the asphalt tile.
Work the cleaner into the asphalt.
Wax only with water based wax.
Spray it across the shingles you wish to clean wait about 20 minutes then rinse them with water.
When soil is not removed by damp mopping wash with detergent and water or mild ammonia and water solution and rinse well.
Pour some of the cleaner onto a section of the asphalt and then use the hand brush to work the product into the asphalt.
Never use oil or solvents such as naphtha gasoline turpentine or carbon tetrachloride for cleaning asphalt tile.
Mopping can dull the finish requiring rebuffing or new finish application.
Damp mop as recommended for vinyl.
Asphalt tile is not damaged by alkali so can you use alkaline cleaners on it.