Our premium insulated duct has a double ply, metallized polyester vapor barrier with tri-directional reinforcements.
#030 – Double ply polyester core, R-Value = 4.2
#036 – Double ply polyester core, R-Value = 6.0 #13602418
#031 – Double ply polyester core, R-Value = 8.0
#037 – CPE Polymeric core, R-Value = 4.2
#039 – CPE Polymeric core, R-Value = 6.0
R6-Silver