
Replacing air vent cover, but the original was screwed directly into the ceiling?
Took out the old vent cover, only to discover that it was screwed directly into the ceiling as far as I can tell. It doesn't seem to be anchored into the metal duct. I can't seem to thread the screws back into the same holes.
How can I go about reinstalling the vent cover? Do I need to patch the holes? Do I need to drill in some sort of anchor?