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Recommendations for washing brick exterior

Posted on 4/25/24 at 7:31 am
Posted by TigersnJeeps
FL Panhandle
Member since Jan 2021
1667 posts
Posted on 4/25/24 at 7:31 am
24 year old house with brick facade.

I have waited too long to wash the exterior brick of dirt/mold/mildew or whatever...

What methods & concoctions have you found to work?
Posted by LSUDad
Still on the move
Member since May 2004
58758 posts
Posted on 4/25/24 at 7:37 am to
Call a brick company that sells bricks. They know.
Posted by NATidefan
Two hours North of Birmingham
Member since Dec 2008
36065 posts
Posted on 4/25/24 at 7:59 am to
This stuff works great on vinyl, haven't tried it on brick. Jomax is popular by users on here too, but I have not tried that yet.



Posted by BilbeauTBaggins
probably stuck in traffic
Member since May 2021
4404 posts
Posted on 4/25/24 at 8:13 am to
I would check what this says about brick. I know that this works very well on painted wood siding that we have. Haven't tried brick.

I imagine you can just pressure wash brick no problem.
Posted by NATidefan
Two hours North of Birmingham
Member since Dec 2008
36065 posts
Posted on 4/25/24 at 8:26 am to
quote:

I imagine you can just pressure wash brick no problem.


probably if you go easy, I'd be careful with the mortar and really high pressure though.
Posted by Cowboyfan89
Member since Sep 2015
12715 posts
Posted on 4/25/24 at 9:02 am to
quote:

I imagine you can just pressure wash brick no problem.

I've actually read that this is not a good idea unless you know there are no gaps/cracks/etc.

Pretty much have to fix all of those first or you risk pushing water between and behind the brick, or damaging any cracked mortar even more.

We have a brick home as well, and I pretty much just figured on using a giant arse brush and spend a nice Saturday working on it.
This post was edited on 4/25/24 at 9:03 am
Posted by magicman534
The dirty dell
Member since May 2011
1575 posts
Posted on 4/25/24 at 10:32 am to
quote:

I imagine you can just pressure wash brick no problem.


I did this at my old house when I was younger. Be very careful. I actually blasted the finish off the bricks and was left with red bricks 2 feet up from slab.
Posted by TigersnJeeps
FL Panhandle
Member since Jan 2021
1667 posts
Posted on 4/25/24 at 4:12 pm to
I have used a pressure washer in the past on our mailbox and pieces of mortar came off even without using the full pressure...

I'll look into Jomax....

Posted by ItzMe1972
Member since Dec 2013
9801 posts
Posted on 4/25/24 at 5:45 pm to
Depends on the brick and mortar.

I have pressured my brick home and brick rental properties. Most are ok with 2600 PSI. But some brick may be soft and the mortar also. Not sure how to test other than trying it out.

"Soft Washing" is the new buzz word for using strong bleach and soap without the high pressure. That process is commonly used on roofs and the results are amazing. YouTube has videos showing the process on roofs and houses.

Posted by BilbeauTBaggins
probably stuck in traffic
Member since May 2021
4404 posts
Posted on 4/26/24 at 10:10 am to
We painted our house with a layer of Kilz primer before putting on a coat of paint over our break. Not sure if OP has just unpainted brick for their home.
Posted by TigersnJeeps
FL Panhandle
Member since Jan 2021
1667 posts
Posted on 4/26/24 at 10:35 am to
It's unpainted red brick.....
Posted by NATidefan
Two hours North of Birmingham
Member since Dec 2008
36065 posts
Posted on 4/26/24 at 10:40 am to
Id try that mold armor I recommended or maybe look at jomax.

It's pretty cheap and easy to use. Spray it on, let it sit for 15 minutes, and then come back and hose it off with a pressure washer that's not at full blast or standing a few feet away with the nozzle. See how that goes.
This post was edited on 4/26/24 at 11:13 am
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