Home Improvement Questions? Ask a Handyman for Answers ASAP
What do you need assistance with?
Is this a brick home?
I assume it hasn't been tuck pointed in some time if at all correct?
Tuck pointing... https://www.merriam-webster.com/dictionary/tuck-point
I doubt you have a water vapor barrier and behind that was is soaked insulation covered in mold... You need this inspected for sure as this mold can cause nasty health effects.
If you have any problems or need additional assistance once we finish I would be happy to come back in and the system will notify me if you post again. Otherwise please rate my service 5 stars so I get credit for my time as we are verified expert consultants and not employees. If you don't give 5 stars I don't get credit for my time.
A plastic sheet barrier and insuring that the brick joints are tuck pointed "sealed from moisture entering them".
This is behind the wall so the wall stays dry.
Behind the wall in the wall cavity between the inside wall and outer brick wall.
No you just open that panel inside and see what the condition inside is. Sometimes there are huge amounts of mold inside the wall and you only see a small amount outside it.
You don't knock down the wall.
With a saw. You cut the molded section and look inside the wall for mold. Then you replace that section after you add a tacked on plastic sheeting. It isn't complicated or major construction.
That varies wildly and there is no average except for small areas of population so you would need to call around and get estimates.
Much cheaper whatever it is than to get sick from the mold...
You are quite welcome!
After decades I have seen all sorts of things and regardless if it is all inside ventilation which I doubt you still have to look in the wall to be sure. Even if you paint over it if you have mold in the wall it will get worse and you normally start having sinus issues and sometimes hospitalization so it simply is not worth ignoring it without looking.
"A pig with lipstick is still a pig..."
If mold is present it will not go away on it's own in almost all cases inside the wall.