HVAC ot

merlynr · May 28, 2016

I took out a hot water boiler heating system and installed hvac forced air with all new ductwork. Part of the new round ducts go in the 2 car tuckunder garage where we had to remove drywall ceiling between the joists. The square trunk lines are insulated in the garage area and part of the way into basement to prevent condensation. Question is what insulation would be the easiest,best,cheapest to wrap the round pipe in the unheated garage with as it is already in place and hooked up?

Steve@Advance · May 28, 2016

There are several to choose from, Home Depot has them or can get them. It's called "duct wrap".

Whatever you think will be easiest to get around it, want to get R6 or better.

Then seal it with the aluminum foil tape, not cloth duct tape.

old-9 · May 28, 2016

How big are the round ducts? I had 6 inch in craw space and used 8 inch flex duct to insulate it. split at one end and worked flex over the galvinized. joe

WGM · May 28, 2016

Duct wrap in the hands of the inexperienced is crap. What you want is bubble wrap. And you want to use reinforced aluminum foil tape with it. Another alternative is to use pre-made insulation sleeves for round duct. Don't know if any of the big three, Home Depot, Lowes or Menards carry it. You may need to go to a HVACR wholesaler for it but I doubt they will sell to you. All of the three carries bubble wrap.

HVAC ot

merlynr

Member

Steve@Advance

Well-known Member

old-9

Well-known Member

WGM

Well-known Member

Similar threads