Oct. 25th someone broke into my fifth wheel in Clinton ok. They shattered the glass and caused extensive damage. A local rv shop removed the old window and patched it up so I could make it home. The delivery time for a new window was 4 to 6 weeks When I got home I ordered a new replacement from heartland. I just received the new window and there is no instruction on how to install it; also there are 18 holes on the inside trim (and no screws provided) Can you tell me if I need silicon when installing. Do the screws penetrate the window itself and the trim. Thanks for your help.