Vapor barriers
Climate class
E1
- Buildings with little to no moisture production
- PE film 0.2mm
- Overlaps of at least 100 millimeters
Climate class
E2
- Buildings with limited moisture production
- PE film 0.2mm
- Aluminum laminates
- Bitumen glass fleece V 50/16
- Bitumen polyester fleece P150/16
- Overlaps must always be glued or welded to each other and to other building elements
Climate class
E3
- Buildings with significant moisture production and good ventilation
- Reinforced bitumen V3, V4, P3 and P4
- Polymeric bitumen APP or SBS min. 3mm thick
- Polymeric bitumen APP or SBS min. vapor diffusion thickness 25m
Climate class
E4
- Buildings with high moisture production
- Reinforced bitumen vapor barriers with metal foil
- Multi-layer vapor barriers made of polymeric bitumen with a thickness of 8mm or more