Hi all, new to the forum but hope someone can offer assistance. Background:
The ducts have been (more or less) sealed with mastic, but they are uninsulated and there is a little mold/mildew on the joists. I'm wondering whether I can/should insulate these ducts and if so how? I can wrap duct insulation around some of the tubular supplies, but the square ducts completely fill the space between joists.
Thanks in advance for any assistance.
- 1940s house in Northern VA
- Vented crawlspace approx 30' x 20'
The ducts have been (more or less) sealed with mastic, but they are uninsulated and there is a little mold/mildew on the joists. I'm wondering whether I can/should insulate these ducts and if so how? I can wrap duct insulation around some of the tubular supplies, but the square ducts completely fill the space between joists.
Thanks in advance for any assistance.