This may be more of a painting issue, but in painting the door casings and trim I noticed that when built the gap between the trim running across the top of the door and the drywall was never caulked. I noticed that the wall paint is flaking on the walls withing a foot of the top of these doors in the one bathroom that was never repainted in 25 years. I had assigned this to the age of the paint in a moist room, but wonder if it is partially due to a failure to seal the top of the door. I am thinking that over time moisture that might condense on the wall could find its way down into onto the outer part of the casing and wick up and out to destroy the paints attachment to drywall. Or is that gap intentionally left open to allow the wall to breathe? Should I caulk those gaps?

Hello, I just paid a company to install new outside french doors to be able to go to my backyard. The doors looks good and nice, but something looks strange to me about the quality of the door insulation : When I touch the white part of the door, the part around the glass (sorry i don't know how to call it, I added a picture with the red arrow to help), it feels very cold even if it is only 57F outside. I know that metal doors conduct cold easily but I am wondering if this is normal ? And what will happen when the outside temperature will go down to -5F this winter ? Is it a sign of bad quality ? I can't know the brand as it is written nowhere. Thank you for your help, Alex