Take the 2-minute tour ×
Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It's 100% free, no registration required.

We have some kind of lichen or mold on the plastic siding on one side of the house. What's the best way to clean it off?

share|improve this question

2 Answers 2

Rent a pressure washer at Home Depot for the day.

I'd be more concerned with what's allowing it to grow in the first place.

share|improve this answer
Ack! Are you sure about a pressure washer on vinyl? I would think that it would crack. –  Karl Katzke Sep 27 '11 at 0:55
I was going to suggest this as well. You just start far away and move closer to the area with the spray until it washes away. Certainly don't put the nozzle right on top of it and squeeze the trigger. –  hometoast Sep 27 '11 at 17:18

Tilex or bleach will probably do it, but test it on a small piece to make sure it doesn't affect the color of siding.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.