These have to do with the addition of three (3) different Classes of material, based on different surfaces, as follows: Class 1 exposed aluminum foil, Class 2 a polymeric film, Class 3 a polymeric coating. Currently, C1775-13 has three different Types of material, which are differentiated by strength characteristics, but not different Classes, based on surfaces.
Keywordsabove ambient; below ambient; jacket materials; jacketing materials; laminate jackets; nonmetallic jacketing; protective jackets; protective jacketing; self-supporting; thermal insulation; vapor retarder; weather resistant;
Withdrawn From Balloting
Ballot Item Approved as C1775-2014 and Pending Publication