Utility Duct Wrap; Type Blanket; Applicable Standard ASTM E84, UL 723; Insulation Thickness 1-1/2"; Overall Dimensions 100' Length x 48" Width; Material Vinyl; Density 0.6 To 0.75 PCF; Color Gray; Maximum Temperature Rating 250 Deg F; Minimum Temperature Rating 40 Deg F; Inclusions/Features Light Weight; Installed R-Value 4; Out of Pack R-Value 5