16 February 2020 / Roofing Tips

Roofs: Difference Between Pressure and Power Wash

Most of you might have heard two effective ways of cleaning your roofs, such as “power-wash” and “pressure wash,” but have you asked yourselves what the difference between the two is?  Now, this article answers that question for you.


Pressure wash uses a steady but powerful stream of hot water.  If there is a build-up of moss, mold, or mildew on your roof, you want to kill the weeds that are sitting in your roof, and this is the best equipment to use. Most roofs can handle this process but check with a roofing professional first.


roofsPower wash, on the other hand, relies more on the force of the stream of water instead of the temperature, unlike pressure wash.  This is good when cleaning surface dirt but will not wash away moss, mildew, and the like as compared to pressure wash.

As most people have a hard time differentiating the two, the main difference is the water temperature.  A power wash can use any water temperature, but pressure wash will only be using hot water.  Both can be bought at any hardware or home improvement store in your area, although it can also be rented in some areas.

As soon as you have either one, you need to read the instruction manual carefully to ensure that the equipment will be used correctly, and you won’t encounter any issues.  Should you have any questions, then feel free to contact the dealer to have these answered.  Also, if you are still not sure of which equipment to use for your roof, call your roof professional to help you with the evaluation.