I bought a 1950 semi-attached two family brick house about 5 yrs ago. Winter months I the upstairs apartment outer walls (walls facing the street and yard) were sweating/ weeping and it got infested with mold. The walls were cold to touch , its gets really cold regardless of how high heat is turned up and drafty during the winter periods. I was told that I needed to do the point work; that it was weak and water was sipping through the joints between the bricks. I did the point work and the problems still persist and the walls sweat when the apt is being lived in.
Another problem is that one could hear the noise and vibration coming from the neighbors and from the bottom floor apt.
I have a feeling the insulation on the walls have deteriorated or none existent (though I was able to feel and pull out a pink foam insulation from a small hole on the wall. One could feel the air coming in around the windows. My questions are:
1. Am I right it’s the insulation?
2. What can I do to fix the noise, vibration and cold?
3. Will insulating alone the walls fix the problems mentioned?
4. If so, what kind of insulation can be used for brick homes?
5. Should it be blown or sprayed on?
6. Should I replace the windows, have them refitted or just insulated around them?
Desperate for solution.
I saw a tripod like equipment used in fixing creaking floors, what is it called? And what kind of nails are those long nails that can be snapped off after they are driven into the floor?