I have 1 1/2 year old outswing exterior doors that leak from the top. They are flush with the exterior of the house
We had a ten minute downpour, water cascades down exterior wall and over top trim 1X4 Hardie, then lips under the Hardie and over door top. There is Q-lon in the kerf in door frame, but it's on the inside edge, and butts up with interior edge of door. Obviously a cascading flow isn't what it's designed for, allowing water to penetrate and flow down the interior of the door, from top to bottom, then onto the floor. I'm wondering if the doors aren't the correct type of exterior doors to be used where they are flush to the exterior. They are made by "Masonite" and have double pane glass with blinds inside. These must be sealed, as water was coming out of the inset trim piece, but didn't penetrate the glass insert. Maybe flowed thru and around the glass. I live in a coastal area , so I think they are supposed to be outswing. Concerning that there is no flange or place for weatherstripping on outside edge of door or frame.