Refer to Table 6-4 in UMC. Air ducts are being installed for a central air conditioner. Supply air ducts run through a ventilated attic in Heating Zone I. All of the following insulations may be used except:

Refer to Table 6-4 in UMC. Air ducts are being installed for a central air conditioner. Supply air ducts run through a ventilated attic in Heating Zone I. All of the following insulations may be used except: