Patent ID: 8113265

Claim:
A door for a doorway in a wall, the door comprising: a side frame that is elongate and mountable to the wall; a track to be disposed on the side frame, wherein the track is elongate and is to be generally parallel to the side frame; a curtain to be moved along the track to selectively open and close the door; a plurality of standoffs to be interposed between the side frame and the wall such that when the side frame is mounted to the wall, the standoffs provide an appreciable air gap to convey a current of air between the side frame and the wall; and a seal to be removably coupled to the side frame and spaced-apart from the standoffs, the seal is elongate and generally parallel to the side frame and extends to the wall to obstruct a current of air when the seal is coupled to the side frame while the side frame is attached to the wall.