Composite insulated building panel

Abstract

A building panel comprising a fiberboard panel providing the structural integrity of the building panel. An insulation layer is laminated to the fiberboard panel, the insulation layer providing a required thermal value to the building panel. A functional layer forms an air barrier, a water barrier and/or a vapor barrier of the building panel. The functional layer is secured to the fiberboard panel on the opposite side of the insulation layer.

1 . A building panel comprising:
 a fiberboard panel providing the structural integrity of the building panel; and   an insulation layer laminated to the fiberboard panel, the insulation layer providing a required thermal value to the building panel.   
     
     
         2 . The building panel according to  claim 1 , wherein the fiberboard panel is made of wood fibers and a bonding agent. 
     
     
         3 . The building panel according to  claim 2 , wherein the fiberboard panel is pressed into a compression-resistant panel. 
     
     
         4 . The building panel according to  claim 1 , wherein all faces of the fiberboard panel are coated with an asphalt coating. 
     
     
         5 . The building panel according to  claim 1 , wherein at least one of the fiberboard panel and the insulation layer is provided with at least one of flame-retardant additive, a fire-retardant additive and a smoke-retardant additive. 
     
     
         6 . The building panel according to  claim 1 , wherein the insulation layer is made of a polymeric material. 
     
     
         7 . The building panel according to  claim 6 , wherein the polymeric material is any one of expanded polystyrene, extruded polystyrene, and polyisocyanurate. 
     
     
         8 . The building panel according to  claim 1 , wherein the insulation layer is made of at least one of glass fiber and mineral fiber. 
     
     
         9 . The building panel according to  claim 1 , wherein the insulation layer is laminated to the fiberboard panel using at least one of a polyvinyl adhesive, a water-based adhesive, an asphalt-based adhesive, a pressure-sensitive adhesive and a hot-melt adhesive. 
     
     
         10 . The building panel according to  claim 1 , further comprising a functional layer forming at least one of an air barrier, a water barrier and a vapor barrier of the building panel, the functional layer being secured to the fiberboard panel on the opposite side of the insulation layer. 
     
     
         11 . The building panel according to  claim 10 , wherein the functional layer forms the air barrier and is made of any one of a woven alkene bound by a polymer, a spun polyolefin, a spun polyolefin bound by a polymer, and sheeted polyethylene. 
     
     
         12 . The building panel according to  claim 11 , wherein the building panel is used in an outdoor application, with the functional layer being oriented toward the exterior. 
     
     
         13 . The building panel according to  claim 10 , wherein the functional layer forms the vapor barrier and is made of at lease one of a woven polyethylene, a woven polypropylene, kraft paper with polyethylene, a paint, a polymeric coating, an adhesive, a sealant, and concrete. 
     
     
         14 . The building panel according to  claim 13 , wherein the building panel is used in an indoor application, with the functional layer being oriented toward the interior. 
     
     
         15 . The building panel according to  claim 10 , wherein the functional layer forms the water barrier and is made of an elastomeric material, the building panel being used in an outdoor application with the functional layer being oriented toward the exterior. 
     
     
         16 . The building panel according to  claim 1 , wherein the fiberboard panel has a thickness ranging between 0.25″ and 2.0″, and the insulation layer has a thickness ranging between 0.25″ and 4.0″. 
     
     
         17 . The building panel according to  claim 15 , wherein the insulation layer has a tapering thickness along a direction of the fiberboard panel, whereby the building panel is used as a roofing panel being sloped by the tapering thickness for drainage. 
     
     
         18 . The building panel according to  claim 10 , wherein the functional layer has an overlapping portion that overlaps an edge of the fiberboard panel, whereby a joint is formed by the overlapping portion over adjacent ones of the building panel. 
     
     
         19 . The building panel according to  claim 18 , further comprising an adhesive on the surface of the overlapping portion facing toward the fiberboard layer. 
     
     
         20 . The building panel according to  claim 1 , wherein the insulation layer is offset with respect to the fiberboard panel for interconnection between adjacent ones of the building panel in flange-and-shoulder connection.