Removing Mold and Algae from Wood Decking
LESLIE: Bill in Tennessee, you’ve got The Money Pit. How can we help you today?
BILL: I’m trying to clean some pressure-treated deck. This is on the second floor of my house and also on the ground is stone. What we have here in Tennessee is Crab Orchard stone; it’s a soft stone. And it’s turned black. The stone has turned black over time and it’s about 15 years old. And the pressure-treated wood has turned black, also, and I wanted to see what the best thing to clean both of them – I’ve tried cleaner on the end of a garden hose and it don’t – and I followed the instructions but it didn’t do much at all.
LESLIE: Mm-hmm. I mean it sounds like a combination of the wood aging and also mold or algae.
Now, you know, a pressure washer set to an aggressive but gentle setting, if that makes any sense, will probably do the best to kind of attack this growth on it. If you could use bleach and water on the mold, or Wet & Forget – a product like that that will do a good job of – I’m not going to say “attacking” but you know what I mean: really aggressively going at this growth. That will probably do a good job of getting to the base of it and removing it from it.
If you can get more sunlight on the area to sort of beat this shady mold growth that’s happening, that will help tremendously. There’s some things that you can do there.
BILL: OK. That’s good. Thank you very much.