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The Difference Between Soft Washing, Power Washing & Pressure Washing

portland-softwashing-power-washing-pressure-washingWondering what the differences are between soft washing, power washing, and pressure washing and which to use for roof cleaning and other exterior cleaning? Get the information you need below from our pros at Saccarappa Exterior Cleaning, your expert Portland pressure washing company.

Power Washing & Pressure Washing

Power washing and pressure washing are the same thing, so you will often hear these terms used interchangeably.

However, there is a big difference between the pressure washing machines you can get as a homeowner and those used professionally. For instance, ours can literally strip paint off marine vessels and metal or cut through concrete.

Still, you can very seriously damage your home's asphalt shingles, wooden deck, roof, and siding with a home-grade pressure washer. It pays, then, to hire an experienced pressure washing company who knows what setting to use for roof cleaning and on the different surfaces of your house.

How Soft Washing Is Different

Soft washing is a method of roof cleaning and house washing that won't damage the surface. Professionals use a low setting on their powerful pressure washing machines. Low water pressure is used with a special cleaning solution. The normal water pressure used in soft washing is normally from 60 to 300 psi depending on the delicacy of the surface material to be cleaned. 60 psi is 20 psi above the water pressure of your garden hose.

Soft Washing professionals usually mix two or more cleaning products together to create a detergent-based cleaning solution. A biocide is added to kill algae, mold, mildew, moss, and lichen. This type of soft wash solution also prevents its regrowth, leaving the surface treated against algae for several months.

Only Use Soft Washing For Asphalt Roof Cleaning

Asphalt shingles are one of those delicate building materials that can get damaged by pressure washing. If high water pressure is used for roof cleaning, the asphalt shingles will split and get knocked loose. Soft washing won't do this damage, so roofing manufacturers have actually inserted this as the recommended maintenance method on their warranties. Don't risk voiding your shingle warranty with pressure washing.

What Our Clients Are Saying:

I had my house cleaned last year and what a difference… My siding looks brand new…He was very cautious of my plants and shrubs … Very professional and cleaned up everything … I would highly recommend this company ![...]
Rosie Jarry Hebert
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If you are looking for a professional pressure washing company in the Portland area, please call (207) 206-5613 or complete our


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