Plate-type component with an outer membrane

Abstract

A sheet component in layered construction, having a supporting body bounded by two flat sides and at least one cover ply bonded by a mineral type of adhesive layer to the supporting body on the latter's flat side. The cover ply has an air transmission rate between 6.0 and 21 l/dm2/min in the uninstalled state, while the adhesive layer bonded to the cover ply forms a watertight composite. The composite forms a barrier to the still uncured particles of adhesive and ensures that the air is capable of escaping through the structure of the cover ply not only during the step of laying on the cover ply but also in the early curing process of the adhesive layer.

What is claimed is: 
     
         1 . A sheet component ( 100 ;  100 ′) in layered construction, comprising a cover ply having an air transmission rate which of between 6.0 l/dm 2 /min and 21.0 l/dm 2 /min, in the uninstalled state. 
     
     
         2 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 1 , wherein the air transmission rate of the cover ply in the uninstalled state has a value of between 10.0 l/dm 2 /min and 14.0 l/dm 2 /min. 
     
     
         3 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 1 , wherein the air transmission rate of the cover ply in the uninstalled state has a value of between 12.5 l/dm 2 /min and 13.5 l/dm 2 /min. 
     
     
         4 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 1 , further comprising a supporting body ( 1 ) bounded by two flat sides ( 5 ,  5 ′), wherein the cover ply is bonded by an adhesive layer ( 2 ,  2 ′) to the supporting body ( 1 ) on one of the two flat sides ( 5 ,  5 ′), and wherein the adhesive layer ( 2 ,  2 ′) bonded to the cover ply forms a watertight composite ( 6 ,  6 ′). 
     
     
         5 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 4 , wherein the composite ( 6 ,  6 ′) has been prefabricated to combine at least one embedded metallic/polymeric foil and/or textile offcut ( 8 ), the at least one embedded metallic/polymeric foil and/or textile offcut ( 8 ) having pores or meshes ( 9 ), in the adhesive layer ( 2 ,  2 ′), so that, during a curing process of an adhesive ( 7 ) in the adhesive layer ( 2 ,  2 ′), released gases ( 4 ) are capable of passing outside through the pores or meshes ( 9 ), wherein the composite ( 6 ,  6 ′) forms a barrier to still uncured particles of the adhesive. 
     
     
         6 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 4 , wherein the supporting body ( 1 ) consists of rigid foam. 
     
     
         7 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 4 , wherein the supporting body consists of extruded polystyrene foam (XPS). 
     
     
         8 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 4 , wherein the adhesive layer ( 2 ,  2 ′) comprises an adhesive ( 7 ) consisting of a synthetic hydrophobic polymer. 
     
     
         9 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 8 , wherein the synthetic hydrophobic polymer is selected from the group consisting of alkyd and acrylic resin. 
     
     
         10 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 5 , wherein the textile offcut ( 8 ) comprises a material selected from the group consisting of woven fabrics, knit fabrics, non-crimp fabrics, fibrous nonwoven web, and combinations thereof. 
     
     
         11 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 4 , wherein the adhesive layer ( 2 ,  2 ′) is fabricated from polymer-modified cement-bound mortar (PCC). 
     
     
         12 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 4 , wherein the cover ply is bonded to the adhesive layer ( 2 ,  2 ′) by application of contact pressure and/or elevated temperature. 
     
     
         13 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 1 , further comprising at least one polymeric protective layer ( 11 ) applied to the cover ply. 
     
     
         14 . The sheet component ( 100 ;  100 ) in layered construction as claimed in  claim 13 , wherein the at least one polymeric protective layer ( 11 ) is a clear lacquer. 
     
     
         15 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 1 , further comprising at least one further coating ( 15 ) comprising mineral matter or paint layer overcoating the cover ply. 
     
     
         16 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 1 , further comprising a prefabricated cover ply ( 16 ) covering the cover ply. 
     
     
         17 . A sheet component ( 100 ;  100 ′) in layered construction, comprising:
 a supporting body ( 1 ) bounded by two flat sides ( 5 ,  5 ′); 
 at least one cover ply ( 3 ,  3 ′) having an air transmission rate of between 6.0 l/dm 2 /min and 21.0 l/dm 2 /min; and 
 a mineral type of adhesive ( 7 ) comprising a polymer mortar (PCC adhesive) uniformly distributed between the supporting body ( 1 ) and a least one of the two flat sides ( 5 ,  5 ′) so as to form an adhesive layer ( 2 ,  2 ′) between the supporting body ( 1 ) and the at least one of the two flat sides ( 5 ,  5 ′), 
 wherein the supporting body ( 1 ), the cover ply ( 3 ,  3 ′) layer, and the adhesive ( 2 ,  2 ′) layer, form a watertight composite ( 6 ,  6 ′). 
 
     
     
         18 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 17 , wherein the watertight composite forms a barrier about any uncured particles of the adhesive ( 7 ) that remain in the sheet component ( 100 ;  100 ′). 
     
     
         19 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 18 , wherein the cover ply ( 3 ,  3 ′) layer is bonded to the adhesive ( 2 ,  2 ′) layer by a whole-areal bond, without bubbling underneath the cover ply ( 3 ,  3 ′), whereby the cover ply ( 3 ,  3 ′) layer in the sheet component ( 100 ;  100 ′) with the adhesive ( 2 ,  2 ′) layer is water and gas impervious. 
     
     
         20 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 18 , wherein the cover ply ( 3 ,  3 ′) has an air transmission rate of between 10.0 l/dm 2 /min and 14.0 l/dm 2 /min. 
     
     
         21 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 17 , further comprising at least one polymeric protective layer ( 11 ) applied to the cover ply. 
     
     
         22 . The sheet component ( 100 ;  100 ) in layered construction as claimed in  claim 21 , wherein the at least one polymeric protective layer ( 11 ) is a clear lacquer. 
     
     
         23 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 17 , further comprising at least one further coating ( 15 ) comprising mineral matter or paint layer overcoating the cover ply. 
     
     
         24 . The sheet component ( 100 ;  100 ′) in layered construction as claimed in  claim 17 , further comprising a prefabricated cover ply ( 16 ) covering the cover ply.