Our house was built in 96. It has an upflow furnace unit with a plenum in the attic. The ducts all appear to be rigid metal and wrapped in foil backed insulation. Just a quick inspection of the joints at the plenum, they all leak. The corners on the plenum are leaking as well. This leads me to believe that every joint in the system is leaking. It would also explain why there is little to no airflow at the far end of the house (in the bedrooms).
Has anyone rei sulated and sealed their ductwork? I am about to go pick up a tub of mastic and seal up everything at the plenum. I am wondering if I should plan to pull the old insulation, seal all of the joints and then re-insulate.
Has anyone rei sulated and sealed their ductwork? I am about to go pick up a tub of mastic and seal up everything at the plenum. I am wondering if I should plan to pull the old insulation, seal all of the joints and then re-insulate.
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