Quote Originally Posted by Stephen Tashiro View Post
My post was moved from Off Topic into the Workshops section, so it's natural to assume the goal is dust collection, but I'm actually assembling duct for heating and cooling.
Well, ok now. There was no indication of that in the OP. I'll move it back.

My advise stands, however...foil tape unless there's a joint that's going to get stressed a lot for some reason.