I am looking to buy a pressure washer to keep various outdoor surfaces clean. What is the maximum safe pressure the vinyl siding can withstand to prevent damaging surface etching? Also, will vinyl brittleness in below-freezing temperatures be a risk requiring a lower pressure or to avoid this method of cleaning?
Maximum PSI for cleaning outside vinyl siding
vinyl-siding
Best Answer
Do NOT use a pressure washer on vinyl in below freezing temps. This is just asking to shatter the plastic, especially if it has had some exposure to the sun. That will make it more brittle. You don't need to clean the siding so often that you need to do this in the winter anyway. A hose has always been sufficient to clean siding for us, once a year in the summer.