I want to know if anyone is familiar with Anderson skylights. Dating back to 1994. (on the glass) Every Anderson skylight I ever installed had a few side screw holding trim that covered the rubber gasket then jamb brackets that anchor the unit to the roof. On installs I would drop the unit in the opening with the head and base flashing already on.
I had to repair the flashing kit on one the other day. After pulling the surrounding shingles I found no brackets holding the unit to the roof deck. Nor were there any trim screws to expose the rubber flashing.

I think I remember installing a unit that snapped in somehow but dont remember. In any case I could not lift up this unit and pull the head flashing. I did not want to pry out what appears to be a home made extension jamb that is holding this thing in. I made the repair with-out changing the top and I think I got it fixed. Does anyone know of this type of skylight or any way to release a snap in type of unit if I need to swap out the top flashing?