How To Pressure Wash Masonite Siding

Now change the pressure washer nozzle to the 25 or 40 degree spray tip and wash away all the detergent while keeping the wand at least 1 foot away from your house siding.

How to pressure wash masonite siding. Masonite is a hardboard made from wooden fibers. Diluted in water and applied often with a stiff scrub brush it can remove stubborn grease stains and mold and mildew growth. Step 1 pre rinse the hardboard siding attach the high pressure spray nozzle to your garden or water hose and rinse the hardboard siding area that you wish to clean. Using the high pressure spray nozzle attempt to remove as much dirt dust and grime as possible before cleaning with soap and water.

Step 2 scrub the hardboard siding. In recent years however the popularity of tsp has waned. Combine one part normal household bleach with ten parts water in a spray bottle. Avoid direct sunlight and let the detergent sit for 5 10 minutes.

Liberally mist areas with the heaviest buildup and discoloration then wipe them down by hand using a soft cloth or sponge. Apply the soap from the bottom up and rinse it away from the top down. Cleaning masonite siding cleaning masonite siding is done normally by using a high pressure power washer having anywhere from 1500 3500 psi. The process that converts wooden fiber into masonite was patented by william h.

Starting low and gently working your way up is the safest bet. He was a protégé and friend of thomas edison. The wooden fibers are steam cooked and pressure molded to form the hardboard masonite. A pressure washer can quickly ruin vinyl siding by cracking it with the high pressure stream of water so it s necessary to know which pressure level and nozzle to use.

Careful not to get too close with spray nozzle as this can damage the siding.