Lift the door by the doorknob.
How to make french doors airtight.
Clean the door frame with all purpose cleaner and a rag.
To make a pair of 1 3 4 by 36 by 84 french doors plan to buy about 110 bd.
Tighten the hinges on your door.
Close the pocket door and ensure that the door is level and properly aligned in its track on the floor.
Repeat for the door soffit at the top jam of the door frame.
Install adhesive weatherstripping foam around the door frame where the french doors touch the frame.
Cut weatherstripping foam to the length of the sides and top of the door frame then peel off the adhesive backing.
Use a screwdriver to tighten the screws holding the hinges in place.
Remove old torn gaping weatherstripping foam.
If you chose insulated metal doors super airtight.
If you can move it upward then the hinges are likely loose.
Pocket door jambs do not have these stops but you can add them to help prevent air leaks.
Lift the door gently using the door knob to check for loose hinges.
Place the door stop strip onto the jambs and nail them in with a few finishing nails.
Double swinging french doors can be designed to seal very well.
Stave core construction stave core stiles and rails are made by gluing thick face veneers onto both sides of a glued up core.