Ask the Builder host, Tim Carter, walks you through how to use a pressure washer to clean moss, lichen, and algae off your roof without damaging the shingles of your home.
It’s Black Friday week on WonderHowTo! Don’t miss out on all of the big sales in the Gadget Hacks and Null Byte shops. And if you’ve been wanting to take some classes without going into debt, check out our best deals on online courses for a variety of skill sets. Don’t miss out on these huge discounts: