Patent ID: 11919281
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A fluid impervious wall skin providing an interstitial space, the wall skin formed from a composite material, the composite material comprising a plurality of layers including:
i. a first layer of flexible material having adhesive on at least one surface thereof for attachment to a structural wall;
ii. a layer comprising a spacer; and
iii. a second layer of flexible material; wherein layers of the composite material are attached a structural wall and one to the other by adhesive between adjacent layers, and wherein the spacer provides the interstitial space between the said first and second layers of flexible material within the said composite material, characterised by: the second flexible layer comprising overlapping sheets of a woven fibreglass fabric of a first weight and a woven fibreglass fabric tape of a second weight, the first weight heavier than the second weight, wherein the each overlapping sheet presents a free edge comprising ends of fibers, and the tape is positioned over the free edge and the overlapped sheet of woven fibreglass fabric of the first weight, and a solvent free epoxy coating applied to the surface of the second flexible layer that is distal from the structural wall, which coating cures to form a hard fluid impervious layer.