Hi all, the house I just purchased has a pilot house to access the roof deck. The prehung door installed by the previous owner looks proper and sealed on the top and sides, but the bottom is a mess. There is a staggered gap ranging from 1/4" through about an inch underneath it, between the threshold and the house. There is also what looks to be foam escaping down here. This gap appears too large to caulk/seal normally so I am wondering if anyone had ideas how I could seal this to be watertight. Thanks, Tim

Starting the plans to replace the front door. I will demo and prep the opening but have a company do the install. I'm doing the prep because there are certain things I want to make sure is aesthetically correct. For example the wood threshold below the door (slab foundation) currently sits crooked because when they poured the concrete pocket the forms were crooked. Ran into this when I did my sliders. Anyway, looking to deconstruct the door so I can start. On the hinge side it's easy to figure out how this was installed. On the sidelight side I'm not sure. The nails look like they are behind the sidelight going into the wall framing, which would require the sidelight to go in after the frame was installed. Looking at the pictures does it look like this door was assembled on site? i.e. casement, then sidelight, strike jamb and finally door? The first 2 pics are an example of where they put a shim from both inside and outside. There is no nail head on the outside (determined by magnet).