See if you can locate this product in your area.
I have used it many times on different sidings & walkways works very well.
This product is not harmful.
Follow all the guide lines of the product.
The cost may be a little higher than most other products but this will work.

 

And the product name is ????

 

I’ve had good luck with a product called Jomax and pressure washing behind it

 

A cheap little electric pressure washer will make quick work of that. No cleaner needed.

 

If you pressure you will be just moving the mold to some other area.
If you apply the D/2 Cleaner you will kill the mold root system.
If you read the instructions I do remember it stating that you apply it than wait the time period as per instructions than rewet and wash. I have also used it on moss on brick pavers & did not wash it off it killed all the moss.

 

I don't know about those electric pressure washers. They don't do very much.

 

Well they don't rip siding off the house, but they would clean that up.

 

I see that all the time in the southeast. Not really mold but mildew. Bleach is my go to cleaning product for exteriors. Real bleach should be cut in half with water although some of the generic brands are watered down and shouldn't be cut that much. I wet the siding/house, spray on the bleach solution with a pump up garden sprayer, let it set but not dry and rinse with a pressure washer. A garden hose can be substituted for the PWer.

 

 

When cleaning a house you don't want to rely on pressure to do the cleaning. It's a good aid but shouldn't be the primary means of cleaning. Chemicals [bleach, TSP. etc] do a better job. Besides possible damage to the wood, too much pressure runs the risk of forcing water behind the wood with a risk of damage from the water.


My main objection to electric PWers is the fact that water and electricity don't mix. Normally the extra pressure available with a big gas PWer isn't needed for residential work.

 

Now you can get a wand with a battery.
https://www.amazon.ca/Cordless-Hydr...t=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001484&hvtargid=pla-349597129602&psc=1

 

Water and TSP. 1700 psi is Korea than good enough. You won't damage anything that way. That bio stuff - I'm going to have to look for that...

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Water and TSP. 1700 psi is Korea than good enough. You won't damage anything that way. That bio stuff - I'm going to have to look for that...

While TSP is a great detergent, I don't know how effective it will be on mold/mildew, it's more for other types of grime. Bleach is proven to work well removing mildew!

 

'Spray and Forget' from HD might be worth a shot, mostly because it's so convenient.

Or, if you have a hose-end sprayer with the dial on it, you can set it for the strongest setting which I think is 8oz/gal and use laundry bleach and a squirt of liquid dishwashing soap. Spray it on, let it sit 15m, then rinse it off.

 

As another poster mentioned, Jomax is great stuff. You mix it with regular bleach and water and then spray it on. The formula is on the bottle for how much Jomax solution and bleach to use per gallon of water. I use a tank type garden sprayer to apply it. Then you let it sit a few minutes and wash it off. Our local Lowes carries it.

 

I've PW'd several exteriors with TSP. Works pretty well on m/m light to medium light buildup. I always use a scrub brush. That's how your supposed to clean EIFS exteriors. That, and no PW over 1900 psi. It works good, with some elbow grease--the down side!

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