Please see the four images uploaded onto the google drive link below.
I need to prep and repair the area around the window. I feel the right thing to do is pull out all the old silicon filler and re-fill.
What I find a little daunting is the size of the gap to fill.
How is the best way to do this and what should I use, expanding filler, silicon ??
https://drive.google.com/drive/folders/0B-Qaks6IaaSaaWFuc2VXdFlsLTQ?usp=sharing