Duct outside measurement 0 5 quot.
Hvac duct wrap insulation r value 8.
They required an r 8 insulation for the duct work that ran throughout the.
It is used for external insulation of commercial and residential heating air conditioning and dual temperature ducts.
C403 2 9 duct and plenum insulation sealing 1 supply and return air ducts and plenums shall be insulated with a minimum of r 6 insulation where located in unconditioned spaces and where located outside the building with a minimum of r 8 insulation in climate zones 1 4 and a minimum of r 12 insulation in climate zones 5 8.
The circumference times the length of the duct equals area.
I m looking at you mississippi and alabama r 6 and r 4 2 are common r values for ducts.
Johns manville s microlite vinyl duct wrap is a thermal insulation made from flame attenuated glass fibers.
This provides an additional air chamber for the insulation.
Check out this video of a customer s state of the art facility under construction.
88 ecofoil ef2220 48 125 polyethylene radiant barrier double bubble foil insulation 125 length x 4 width x 5 16 thick 5 out of 5 stars 3.
For example a 6 quot.
When insulating ducts understanding the meaning and impact of r values and insulation thicknesses is essential to getting the most efficient affordable outcome on your heating installation project the ratings provide a guide for homeowners that determines the effectiveness of the insulation making it easier to choose the right insulation for your home.
Thick duct wrap the circumference is 20 4 quot.
7 948 btu hour 0 66 ton the numbers are even higher for the additional heating load.
Here s how that 3 500 square foot house would come out with those.
The product provides an r 8 0 when installed with a 0 75 air gap between the duct and the insulation and r 6 0 when installed direct to the duct without a spacer.
6 305 btu hour 0 53 ton r 4 2 duct insulation.
3 9 1 5 permeance rating.
Product description the reflectix r 8 0 duct insulation is a nominal 1 thick and consists of an outer reflective surface two layers of big bubbles in the center and a.
In order to achieve the r 8 value the spacer strips must be used and placed every 2 on the ducting.
For round duct the circumference of the duct wrap is 3 14 x outside diameter of the duct thickness of the insulation.
When combined with the spacer strips the finished thickness is 11 16 to 3 4 thick ecofoil r 8 hvac duct wrap insulation is meant to be used around any duct work in your home or building.
Owens corning softr duct wrap is a blanket of glass fiber insulation factory laminated to frk vapor retarder facing.
