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Need OB advice on dealing with old brick fireplace

Posted on 4/8/16 at 9:59 am
Posted by doublecutter
Hear & Their
Member since Oct 2003
6585 posts
Posted on 4/8/16 at 9:59 am
I'm helping out my cousin updating his house in Uptown NOLA. The house was built in the 1840s.

In the kitchen of the house there is a brick fireplace (decorative, not used anymore). In general, the bricks and mortar are hard and intact. But there are a few places where the bricks and mortar are disinigrating. If you would run your finger over it , it turns to dust.

Is there a clear product I can apply to these spots that will solidly or encapsulate the disinigrating area?

Our thinking is to repair these areas in some kind of way and apply a clear sealer of some kind over the whole fireplace.

The brick fireplace looks good, it contrasts well with his cabinets and countertops, so he doesn't want to change the look of the bricks by painting or repairing where there would be different color mortor or bricks.

TIA for any advice.
Posted by lsugrad35
Jambalaya capital of the world
Member since Feb 2007
3182 posts
Posted on 4/8/16 at 10:02 am to
I don't have any answer to your question unfortunately, but I love this stuff and would like to see pics if you have some. Good luck on the repairs.
Posted by JamalSanders
On a boat
Member since Jul 2015
12135 posts
Posted on 4/8/16 at 10:32 am to
Would a polyurethane work?
Posted by Perrydawg
Middle Ga Area
Member since Jan 2014
4769 posts
Posted on 4/8/16 at 11:01 am to
I think if it is turning to dust, it is too far gone that any sealer will fix it. I know where I live, there is a place where you can buy old brick discarded from renovations so you might be able to get some with the age you are looking for and it wont be that noticeable.

As with the mortar, you can try to match the mortar by mixing to previous mortar that is falling out with some new to see if you can get it to match, or you can try mixing some concrete stain until you get a color match.
Posted by Perrydawg
Middle Ga Area
Member since Jan 2014
4769 posts
Posted on 4/8/16 at 11:01 am to
damn triple post wtf
This post was edited on 4/8/16 at 11:02 am
Posted by Perrydawg
Middle Ga Area
Member since Jan 2014
4769 posts
Posted on 4/8/16 at 11:01 am to
damn triple post wtf
This post was edited on 4/8/16 at 11:03 am
Posted by cgrand
HAMMOND
Member since Oct 2009
38785 posts
Posted on 4/8/16 at 12:02 pm to
you can get it tuck pointed by any good brick mason
after that, yes you can seal it with poly
Posted by CajunAlum Tiger Fan
The Great State of Louisiana
Member since Jan 2008
7873 posts
Posted on 4/8/16 at 1:33 pm to
I had the same issue here in the firebox. I marked all the bricks for location with chalk, took a pic on my phone for reference, then pulled all the loose brick. There is firebox mortar that comes in a tube like caulk and I put it all back together like a puzzle.

Because all of the bricks were already cut (the hard part) , it was very easy. Even if not in the firebox and you need to mix up a batch of mortar, you can DIY with great results.
Posted by VetteGuy
Member since Feb 2008
28174 posts
Posted on 4/8/16 at 7:08 pm to
Cg, do you know a jam-up good brick mason around Hammond area that can redo some wing walls?
Posted by QuietTiger
New Orleans
Member since Dec 2003
26256 posts
Posted on 4/8/16 at 7:12 pm to
It's extremely hard to seal old bricks, I did away with one and have had to tweak the other. If possible, eliminate to below the floor line and call it a day.
Posted by cgrand
HAMMOND
Member since Oct 2009
38785 posts
Posted on 4/8/16 at 7:47 pm to
I do but I'm away from office for a week
see if you can find a number for D&W Hope masonry
ask for David
Posted by VetteGuy
Member since Feb 2008
28174 posts
Posted on 4/8/16 at 7:55 pm to
Thanks.
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