[Guest]

I am bidding on a facelift for commercial building. Facade is over a hundred years old in Texas Limestone. Of course mold is present.

One of the task is they want the exterior clean, they have had pressure washers try in the past (really?) with no success.

I want the least intrusive with the best results for cleaning the limestone.
What I would like to know will sodablasting remove the mold and a treatment with some type of mold inhibitor that could be applied?

I don't know a lot about sodablasting...I know its hell on wheels for paint removal.

Thanks in advance.

 

[Guest]

With limestone being so pourous and permeable, I think I'd tread lightly.

You need to get ahold of Fremont, he's pretty knowledgeable in regards to soda blasting (although I am uncertain if he's ever done any limestone blasting before).

 

[BPWY]

You may get better answers out side of the P&P forum.

Good luck.

 

[thanohano44]

I am bidding on a facelift for commercial building. Facade is over a hundred years old in Texas Limestone. Of course mold is present.

One of the task is they want the exterior clean, they have had pressure washers try in the past (really?) with no success.

I want the least intrusive with the best results for cleaning the limestone.
What I would like to know will sodablasting remove the mold and a treatment with some type of mold inhibitor that could be applied?

I don't know a lot about sodablasting...I know its hell on wheels for paint removal.

Thanks in advance.

Call Barack Obama. Our omnipotent one knows all and does all.

 

[BPWY]

Call Barack Obama. Our omnipotent one knows all and does all.

According to him none of us do sheet ourselves any way.

 

[thanohano44]

According to him none of us do sheet ourselves any way.

That's a racist statement. Stop being racist. Lol

 

[BPWY]

I'm not racist. I hate every body.

 

[thanohano44]

I'm not racist. I hate every body.

Except the wookie

 

[Guest]

Call Barack Obama. Our omnipotent one knows all and does all.

:wallbash: <-- This is the only thing I could learn from B.O. on what to do with a rock wall.

 

[Guest]

J Sims,

I wouldn't personally soda blast anything limestone. Perhaps dryice blast? I have stopped all blasting on mold--only on fire damaged structures for the charring.

There are some excellent products that you can remove the discoloration without tearing up the structure and then use some antimicrobials.

The only thing you really need to be careful on is the State of Texas licensing...you have to be licensed for any mold remediation..even if it is incidental damages otherwise your Commercial Pollution Liability policy won't cover your exposure...or your General Liability won't cover you if you damage the structure.... Just a cautionary word.....

PM me and I can share some good products to remove the discoloration but I would call the companies and ask them for advice since it is highly toxic and may also hurt the limestone.