If you have a brick building in Chicago area its walls may be suffering. Have it evaluated before is too late and the damage extent will create a huge hole in your pocket.
http://www.youtube.com/watch?v=syU9KHF897Q
If you have a brick building in Chicago area its walls may be suffering. Have it evaluated before is too late and the damage extent will create a huge hole in your pocket.
http://www.youtube.com/watch?v=syU9KHF897Q