You can see the difference in surface temperatures the bubble wrap foil duct has a much warmer surface temperature than the fiberglass wrapped ducts.
Foil bubble insulation duct wrap.
Reflectix r 4 2 duct wrap insulation 12 x 25 click to add item reflectix r 4 2 duct wrap insulation 12 x 25 to the compare list compare click to add item reflectix r 4 2 duct wrap insulation 12 x 25 to the compare list.
Prodex total is composed of 13 64 inch approx.
So it looks to me like two layers of bubble foil wrap is performing worse than an r 6 fiberglass duct wrap.
R 6 value meets or exceeds most energy codes and helps reduce energy.
By using ecofoil 3 premium high tack hvac tape around duct seams you will prevent leaks that add to the inefficiency of metal duct work.
I have heard some say that the insulation could be installed loosely to maintain the gap.
3 16 or 5mm closed cell polyethylene foam covered on both sides with 0012 inch 0 03mm aluminum facing.
Insulating your home or buildings duct work with reflective bubble insulation increases the efficiency of your hvac system.
With ducts foil faced bubble wrap will work as a radiant barrier in the winter when the ducts are moving warm air and the surrounding space is cold.
Foil faced bubble wrap is composed of either one single bubble or two double bubble layers of mylar air bubbles sandwiched between two metalized surfaces.
Worth mentioning to get the equivalent r value to what the manufactures claim on the packaging the installer has to use spacers under the insulation to keep the prescribed air gap between the ducts and the foil.
Bubble foil insulation draft insulation ultra nt for scifs r8 hvac duct wrap insulation tape adhesives.
R8 hvac duct wrap insulation tape adhesives.
Ecofoil r8 hvac duct wrap insulation reflects radiant heat and convective heat.
Use this master flow 60 sq.
Covers up to 60 sq.
Most metallic bubble wraps are about an r 1.
Fiberglass duct wrap insulation to reduce condensation in absorb noise from and improve the air temperature efficiency of your duct system.
Double bubble reflective foil insulation 24 inch x 10 ft roll industrial strength commercial grade no tear radiant barrier wrap for weatherproofing attics windows garages rv s ducts more.
Double bubble reflective foil insulation 36 inch x 25 ft roll industrial strength commercial grade no tear radiant barrier wrap for weatherproofing attics windows garages rv s ducts more.