... synthetic roof-sheet which made from polyethelene, aluminum foil, nonwoven, etc PE-Plus A roof underlayment ... synthetic roof-sheet which made from polyethelene, aluminum foil, nonwoven, etc. Especially its PE bond layer ... PE-Plus A roof underlayment has a reflective foil and can be used in exposed roof. ... Agriculture, packing, industry and other application Aluminum foil coated with pp nonwoven-PE plus A