Robert11 wrote:
Hello:

Regarding all the round sheet metal duct work exiting our typical gas
fired, hot air heating
furnace:

What's the best way to seal these duct joints, at least where one can
actually see them ?

Duct tape doesn't really sound like the best way to go.

"Duct" tape may work on ducks, but not ducts. You want tape made for
ducts (Duct tape is not, but that is another story).

Look around in the area where ducts are sold. You will find some
slightly more expensive tape made for the job. It will be shinny metal
looking and it will have a liner over the adhesive that you will need to
remove when you use it. Get it straight the first time, it's not coming
off. That liner makes putting it on easier.


Would appreciate any suggestions as to brands, etc.

I guess I should also ask:

Is it necessary to do so for the hot air ducts ?

How about for the duct leading to roof flue exhaust (no fireplace in
house) ?

Thanks,
Bob

--
Joseph Meehan

Dia's Muire duit