What is Pressure Washing?
In Indiana, we get a lot of humidity throughout the year. We get a lot of pollen and other things in the air. Things like algae, lichens & mosses, and we get a specia bacteria in the Eastern US called Gloeocapsa Magma. This is the culprit behind the ugly black streaks on your roof or your siding.
Traditionally, people have removed these bacteria and other invaders through pressure washing. They used a high-pressure valve pushing out 4000psi. This can cause damage to skin on people, let alone siding, wood decking and other materials that might be getting soft or brittle with age.
In time, people started bleaching the surfaces to kill the bacteria, but that only works for a short time and it can discolor the surface you are trying to clean! When you combine bleach and pressure, you get a potential bad day.
That’s where Soft Washing comes in.
What is soft washing?
Maintenance Medics Exterior & Roof Cleaning has been cleaning exteriors of houses and businesses in northwest Indiana for years. We started way back in 1999. Over the years, we’ve changed from pressure washing surfaces to soft washing surfaces for a few reasons.
A soft wash uses low-pressure nozzles on the end of a pressure washing gun or wand. Then we combine this with a biodegradable chemical that removes the biological invaders: mold, algae, bacteria, pollen, dirt, moss. It can also be used to remove other stains like rust or oil without damaging a surface or killing your plants.
Not only does the soft washing method clean wood and porous surfaces, such as your deck, patio, siding or fence, safely and thoroughly, we also use it to clean roofs. Plus it maintains paint and masonry longer than pressure washing alone does.
The only time full pressure (4000 psi) should be used is to scour concrete with a surface cleaner that defuses the pressure through two nozzles. Like this:
Pressure washing still has a place
Both pressure washing and soft washing are done with a commercial pressure washing machine, which should be used on all jobs.
The machine will properly distribute and dilute chemicals during pre-rinse, and we use them to apply the proper volume of water-to-pressure ratio for the appropriate surfaces. Y