i have an sun room that was added on to the kitchen many years ago. Now that i have notioed that when it rains the water comes in right at the seam. And the snow when it sits leaks through..need help ...

Hi there, we have a sunroom off the back of our townhouse that is leaking huge amounts from one of the tops panes. It appears that the glass piece was too small and slid down so there is now a 2″ gap ...