[minneapolispainting]

I have a client that wants me to power wash the north side of his house. He has vinyl siding and because it gets no sunlight, a bunch of mold has built up. Would you just pressure wash this with water or is there good solution that you would recommend that I can add to kill the mold?

 

[Joe67]

?? You need a cleaner. There are a large number of exterior cleaning products billed for mold and mildew and general grime. One of the more popular is Jomax. I like 30 Seconds Cleaner because all you do is cut it 50/50 with water, spray it on and let it sit a few minutes. (With Jomax you need to add the bleach).

 

[MikeCalifornia]

Here, you're welcome. Real cleaning products
https://pressuretek.com/chemicals-handling/cleaning-chemicals/

 

[Joe67]

Here, you're welcome. Real cleaning products
https://pressuretek.com/chemicals-handling/cleaning-chemicals/

So what's funny about those products coming from MikeCalifornia is that they all say "not legal for purchase or use in the state of California."


Yes, an Ohio company that just gave up on Proposition 65 compliance. That's fine. And obviously we're talking about a Minnesota question so that's not relevant.


But no need to make it complicated. Every hardware and paint store (more local or corporate behemoth) has house cleaners. And many of those are also probably not approved in California and maybe not "real". But grab one, follow the directions and go.

 

[MikeCalifornia]

So what's funny about those products coming from MikeCalifornia is that they all say "not legal for purchase or use in the state of California."


Yes, an Ohio company that just gave up on Proposition 65 compliance. That's fine. And obviously we're talking about a Minnesota question so that's not relevant.


But no need to make it complicated. Every hardware and paint store (more local or corporate behemoth) has house cleaners. And many of those are also probably not approved in California and maybe not "real". But grab one, follow the directions and go.

These are what the pros use, they used to frequent this group well before your time.
Unfortunately, I cannot get these anymore in CA. They were pretty awesome when I could.

 

[54pontiac]

I use Clorox Outdoor Bleach cut 1:4 with water in a hand pump sprayer (I only do one story houses). The other cleaners are a lot less effective for more money, but you have to be careful about killing plants or burning yourself. Serious stuff! Unfortunately, it's being hoarded right now in Athens, GA so I have to use the crappy stuff.

 

[dreed01]

I think normal washing or using soap is not enough, dear. Mold formation proves that it has been soiled for a long time and we need some solution. There is a strong detergent catalyst. I can give you some pointers if you need them

 

[finishesbykevyn]

I think normal washing or using soap is not enough, dear. Mold formation proves that it has been soiled for a long time and we need some solution. There is a strong detergent catalyst. I can give you some pointers if you need them

Fire away...Dear.

 

[PaintShopTillamook]

30 seconds is your best bet, its practically diluted bleach with soap. Other than that Zep sells a good housewash that should deal with the mold.

 

[richkyhvac]

You definitely need a cleaner. I like the outdoor bleach too.

 

[cleaningguy]

Agree with these people

 

[paintwrapping]

I use baking soda and works great. Another option is white vinegar though I have only used that once, it does the job. Both should be mixed with water.

 

[connert3]

I use baking soda and works great. Another option is white vinegar though I have only used that once, it does the job. Both should be mixed with water.

Good tip - cheap solution if it works

 

[Holland]

Any new suggestions for mold removal on vinyl slidings?

Bleach + water (10-50% solution - depending on severity of mold/mildew).

1. wet siding
2. pump spray bleach solution on siding. (can add a splash of Jomax as a surfactant - a clinging agent and "bleach activator"- if needed). soft scrub brush for stubborn spots.
let sit 15min.
3. rinse with clean water.

Works every time.
Bleach is effective because it is highly alkaline. It raises the ph to create a hostile environment for mold/mildew (kills it), which is a living organism.

 

[Aloxcrny]

Mold removal is the most important for good health. If mold is developing in your homes, surely there is a water problem that you require setting up. Molds flourish in moisturizing and soggy environment. You may have ignored a leaking spigot, a crack in the cellar wall or perhaps, a rupture pipe was not correctly revamp.