Bitumen membrane against water vapour and moisture transmission and the ingress of radon gas.
The RADON VAP AL P4 bitumen waterproofing membrane is used as a vapour barrier in thermally insulated flat roof systems and for waterproofing of substructures, providing complete protection against the transmission of moisture and water as well as the ingress of radioactive radon gas into the building.
- reinforcement: polyester felt + Al
- flexibility at: -15° C
- flow resistance: 100° C
- breaking force longitudinal / transverse: >1000 N / >1500 N
- elongation at break: >2 %
- vapour barrier Sd value: ≥ 1500 m