My Air Conditioner in the window had some problems over the summer and it leaked water out the front instead of the back. I really diddant notice this problem untill it was a bit too late. Now I have water marks going down the wall and its cause a chip of the wall to come off. Im not sure what type of wall this is to where it just chips off like this but what can I do to repair it?
http://hostmysig.net/files/DSC00855.JPG
http://hostmysig.net/files/DSC00856.JPG
http://hostmysig.net/files/DSC00855.JPG
http://hostmysig.net/files/DSC00856.JPG