Do sheet metal air ducts in a home need to be taped?

at the joints?Do sheet metal air ducts in a home need to be taped?
Yes, it's advisable. Taping the joints will help prevent air loss.Do sheet metal air ducts in a home need to be taped?
at the joints, and where the vents come out of the drywall and into a room .. 464 15 9868
Yes,





Most Duct tapes are not the type ASHRE recommends. Look for


UL 181 rated tapes





Metal tape works great as one of the other post suggest.





There is a duct tape that is clear and looks more like packaging tape. That is the best to use. It is designed to take the heat a perform.








Duct mastic or pookie is the best product for sealing ducts. use fiberglass wall tape like the kind used for drywall. Apply the mastic with a cheap china bristle brush. Use generous amounts
screws
This is what Duct Tape is made for. People use it to fix just about any thing. This seals the joints and connections to prevent heating and cooling to escape. It helps make the heating/cooling system more efficient. So yes you use Duct Tape to seal the joints. I even saw a guy using duct tape to hold his sandals together. Now it comes in different colors for the disigners.
Yes, you should tape the joints to prevent loss of air volume through leakages at the joints.
I agree with bill to a certain point. Duct tape will dry out pretty quick. You need the foil backed tape found in the sheet metal isle.