I attached a picture that I hope you can have a look at and answer for me.
Notice the cement blocks that are under the window frame, there are 2 pieces the run the length of the window. Today I notice that one of them had moved out about 1/2 inch??? I was able to push it back in but is this a really big problem that need to be fixed? I assume yes or are they supposed to float in there
. Would this be due the harsh winters and extremely hot summers causing expansion and contraction?
any help would be great