"Brush weatherstrip, have used Sealeze brand on such doors, as noted, may need astragal. Brush w/s good for irregular / un-aligned openings; choice of plastic or aluminum extrusion, color & brush length."
Welcome to the 1000 Home Challenge group, Kevin. As the project moves out from the pilot phase, much of interest will emerge! At any time, send me nominations for the Resources section of the group's page.