The black coloring or darkening of the cedar siding is caused by mold growth.
Cleaning cedar siding with pressure washer.
Stock pressure washing nozzles put out a very sharp stream of pressure if you get the wand to close to the cedar you will leave a scar to much pressure is also bad often dislodging or cracking the shingles or shakes.
It wasn t so long ago that trisodium phosphate tsp was a go to choice for tough cleaning jobs especially on exteriors.
Oil stains that are.
The tip you choose is important to avoid damage to the siding.
Under certain conditions pressure washers can cut into concrete and brick so imagine the potential effect on cedar vinyl or even fiber cement siding this inadvertent etching is easy to avoid though if you simply stand well back when aiming your sprayer at the siding.
Diluted in water and applied often with a stiff scrub brush it can.
Much faster with a wood product.
Allow it to sit for 15 minutes then rinse it off thoroughly.
Clean cedar with a scrub brush and hose off or use pressure washer to rinse surface clean.
Homeowners should use care when using high pressure washers on cedar shingles which can cause damage on shingles surfaces as well as moisture intrusion between shingles.
Spraying with a power washer is akin to taking a chisel and chipping gouging into the cedar.
Depending on your washer s psi rating this might mean anywhere from 18 inches to 6 feet away minimum.
By marc connecticut.
Pressure washing is a key factor in maintaining cedar siding for many years to come.
How to pressure wash cedar shake siding.
Do not power wash cedar siding or any made out of wood.
Never mix with other cleaning agents or bleach.
Stained cedar siding has a tendency to discolor over time.
Not pressure washing your cedar siding will lead to mold and mildew problems and can cause deterioration.
Insert the yellow tip in the pressure washer wand.
The experts at pressure washers direct explain the best way to pressure wash cedar siding.
Connect the pressure washer to a water source such as a garden hose.
Yes water under pressure and shot out of a nozzle at high velocity will cut thru just about anything given a long enough time span.
The key to pressure washing cedar is the pressure and the nozzle on the end of the pressure washer.
Cedar wash cleaning application apply with garden style pump sprayer or other pump spray system.