公开(公告)号：US09816264B2

公开(公告)日：2017-11-14

申请号：US13957138

申请日：2013-08-01

Applicant: Ewald Doerken AG

Inventor： Marcus Jablonka

IPC: B32B3/10 ,  E04B1/62 ,  C09J7/04 ,  C09J7/02 ,  B32B37/12 ,  B32B7/12 ,  B32B27/12 ,  B32B27/32 ,  B32B37/26

CPC classification number: E04B1/625 ,  B32B7/12 ,  B32B27/12 ,  B32B27/32 ,  B32B37/1292 ,  B32B2037/1215 ,  B32B2037/268 ,  B32B2307/724 ,  B32B2307/7242 ,  B32B2419/00 ,  B32B2419/06 ,  C09J7/21 ,  C09J7/22 ,  C09J7/30 ,  C09J2201/128 ,  C09J2201/28 ,  C09J2400/263 ,  Y10T428/24802 ,  Y10T428/24843

Abstract: A water vapour-permeable building sheet material, that may be adhered in overlapping relationship against a building structure, includes a water vapour permeable membrane having first and second opposing surfaces, wherein the surface energy of the second opposing surface is less than 35 mN/m; an adhesive layer that is vapour permeable, applied to the first face of the membrane; and an adhesive region applied to the second opposing surface. Two segments of the sheet material may be placed in overlapping relationship so that adhesive in the adhesive layer applied to the first face of the membrane of one of two segments adheres to the adhesive region applied to the second opposing face of the other of the two segments to form a substantially air impermeable boundary between the two segments, when overlapping, preventing lateral migration of air between the two segments. A building envelope may be so formed.