What to use for covering the access hole?
Thanks
There you will find some sheet metal of various thickness. Get a good match, go home and either pop rivet it to the cut out, and seal with the metal ducting tape, or before you rivet it down run a bead of sealant around the opening, then rivet it for a leak free seal. After too many times of me drilling out the rivets, I now just seal it back up with the aluminum ducting tape and call it a day.
J

