For example a 6 quot.
Hvac duct wrap insulation r value 8.
3 9 1 5 permeance rating.
Microlite vinyl delivers a high tensile strength core for improved handling and easy installation.
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.
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.
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.
R 8 hvac duct wrap insulation reflective 2 sided foam core 4 x 25 100 sq ft 4 7 out of 5 stars 42 74 88 74.
7 948 btu hour 0 66 ton the numbers are even higher for the additional heating load.
Duct outside measurement 0 5 quot.
Johns manville s microlite vinyl duct wrap is a thermal insulation made from flame attenuated glass fibers.
It is made with a phenolic binder and laminated onto a white vinyl facing.
Thick duct wrap the circumference is 20 4 quot.
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.
6 305 btu hour 0 53 ton r 4 2 duct insulation.
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.
Here s how that 3 500 square foot house would come out with those.
I m looking at you mississippi and alabama r 6 and r 4 2 are common r values for ducts.
They required an r 8 insulation for the duct work that ran throughout the.
In order to achieve the r 8 value the spacer strips must be used and placed every 2 on the ducting.
This provides an additional air chamber for the insulation.
The circumference times the length of the duct equals area.
Check out this video of a customer s state of the art facility under construction.
