When the ducts are going to be concealed, all seams must be taped or caulked. Listed here’s Bob’s trick for taping a seam on the pipe that’s mounted close to the subfloor: Reduce a piece of foil tape to size. For even more information on ventilation ductwork down load the https://ductwork-installers45666.bloguerosa.com/27395284/ductwork-installers-an-overview