IT1175586B - Composite vapour barrier sheet
- Google Patents
Composite vapour barrier sheet
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Publication number
IT1175586B
IT1175586BIT22307/84AIT2230784AIT1175586BIT 1175586 BIT1175586 BIT 1175586BIT 22307/84 AIT22307/84 AIT 22307/84AIT 2230784 AIT2230784 AIT 2230784AIT 1175586 BIT1175586 BIT 1175586B
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Application filed by Vik ConsultfiledCriticalVik Consult
Priority to IT22307/84ApriorityCriticalpatent/IT1175586B/en
Publication of IT8422307A0publicationCriticalpatent/IT8422307A0/en
Application grantedgrantedCritical
Publication of IT1175586BpublicationCriticalpatent/IT1175586B/en
The vapour barrier comprises a layer of vapour-tight impervious material connected with a layer of water-absorbing material. Openings permitting the passage of vapour and water are provided in the vapour- tight layer. Two vapour-tight layers (1,2) may be provided with an absorbing layer (3) trapped between. Openings (5) in one vapour-tight layer may be arranged in displaced positions relative to the openings (6) in the other layer.