so I figured now was time to add central AC
While the system works good, in very hot weather when the ac runs all day I notice the sheetmetal ducts close to the furance sweat and drip cold water onto the ground in two spots.And there are all wet beads of water on the bottom of the duct work Mostly at the widest portion of the duct work, before it splits up and goes up the ceiling.I can take a towel and wipe it dry but it returns fairly quickly.
For all I know it could be sweating inside the walls also. This concerns me, I am worried about damaging the walls.
Why does this happen and can I insulate with anything?? IS something under or oversized onmy system?? If so, what kind of insulation can I use for the metal ductworks?? Also, was this old duct work made to take cold air from the ac unit?? Iwas told it would be ok but I could have just been fed that line so he got the job.
Any help is greatly appreciated,
Thanks in advance,