Separable fibrous insulation

Abstract

An insulation blanket includes a fibrous insulation layer and a facing material. The fibrous insulation layer has a first major surface and a second major surface and at least one longitudinal cut which extends from the first major surface to the second major surface and forms adjacent layer sections. Each layer section has at least one inner sidewall. At least a first inner sidewall of a first insulation layer section has applied thereto an adhesive for adhering together an adjacent second inner sidewall of a second adjacent layer section. The facing material has separation means which extends substantially along the at least one longitudinal cut. The facing material is disposed on the first major surface of the fibrous insulation layer.

1 . An insulation blanket comprising: 
 a fibrous insulation layer having a first major surface and a second major surface, and at least one longitudinal cut extending from said first major surface to said second major surface, said cut forming adjacent layer sections each having at least one inner sidewall, and wherein at least a first inner sidewall of a first insulation layer section has applied thereto an adhesive for adhering to an adjacent second inner sidewall of a second adjacent insulation layer section; and    a facing material disposed on said first major surface, said facing material having separation means which extends substantially along said at least one longitudinal cut.    
   
   
       2 . The insulation blanket of  claim 1 , wherein the separation means includes a series of perforations.  
   
   
       3 . The insulation blanket of  claim 1 , wherein the facing material comprises separate facing sheets each adhered to respective insulation layer sections, and wherein the separation means includes an overlap area of the separate facing sheets.  
   
   
       4 . The insulation blanket of  claim 3 , wherein the overlap area is approximately ¼-1 inch in width.  
   
   
       5 . The insulation blanket of  claim 3 , wherein the facing sheets include a fastening tab on one or both side edges.  
   
   
       6 . The insulation blanket of  claim 1 , wherein the separation means includes a visual marking line.  
   
   
       7 . The insulation blanket of  claim 1 , wherein the separation means includes an inner connecting strip directly adhered to the fibrous insulation layer.  
   
   
       8 . The insulation blanket of  claim 1 , wherein the separation means includes a crease.  
   
   
       9 . The insulation blanket of  claim 1 , wherein the facing material comprises separate facing sheets each adhered to respective insulation layer sections, and wherein the separation means includes a sealing fin, wherein the sealing fin is formed by folding an edge of one facing sheet and overlapping said folded edge with an edge of the facing sheet of an adjacent layer section.  
   
   
       10 . The insulation blanket of  claim 9 , wherein the sealing fin includes an adhesive to adhere together the overlapping edges.  
   
   
       11 . The insulation blanket of  claim 1 , wherein the facing material comprises separate facing sheets each adhered to respective layer sections, and wherein the separation means includes a crimp fold which is formed by folding one edge of a first facing sheet over the edge of an adjacent second facing sheet and thereafter folding over upon itself the edge of the second facing sheet.  
   
   
       12 . The insulation blanket of  claim 1 , wherein the fibrous insulation layer includes four layer sections, three layer sections having a width of 3¾ inches and one layer section having a width of 4 inches.  
   
   
       13 . The insulation blanket of  claim 1 , wherein the fibrous insulation layer includes four layer sections, three layer sections having a width of 4¼ inches and one layer section having a width of 2½ inches.  
   
   
       14 . The insulation blanket of  claim 1 , wherein the fibrous insulation layer includes four layer sections, the layer sections having respective widths of 6 inches, 2 inches, 3 inches, and 4 inches.  
   
   
       15 . The insulation blanket of  claim 1 , wherein the fibrous insulation layer includes two layer sections, one layer section having a width of 4 inches and one layer section having a width of 11 inches.  
   
   
       16 . The insulation blanket of  claim 1 , wherein the fibrous insulation layer includes two layer sections, one layer section having a width of 4 inches and one layer section having a width of 11¼ inches.  
   
   
       17 . The insulation blanket of  claim 1 , wherein the fibrous insulation layer includes two layer sections, one layer section having a width of 8¾ inches and one layer section having a width of 6½ inches.  
   
   
       18 . The insulation blanket of  claim 1 , wherein the fibrous insulation layer includes two layer sections, one layer section having a width of 9 inches and one layer section having a width of 6 inches.  
   
   
       19 . A method of making a faced separable insulation blanket comprising: 
 providing a fibrous insulation layer having first and second major surfaces thereon,    cutting a fibrous layer into separate layer sections by making at least one longitudinal cut that extends from said first major surface of the fibrous layer to said second major surface of the fibrous layer,    applying an adhesive to one or more inner sidewalls of said separate layer sections to glue the said sections together, and    applying a facing material to at least first or second major surface of the fibrous layer, wherein the facing material includes separation means that is substantially aligned with the at least one longitudinal cut.    
   
   
       20 . A method of insulating a cavity in a framework of a building comprising: 
 (a) providing an insulation blanket including: 
 a fibrous insulation layer having a first major surface and a second major surface, and at least one longitudinal cut extending from said first major surface to said second major surface, said cut forming adjacent insulation layer sections each having at least one inner sidewall, wherein at least a first inner sidewall of a first insulation layer section has applied thereto an adhesive for adhering to an adjacent second inner sidewall of a second adjacent insulation layer section; and  
   a facing material disposed on said first major surface, said facing material having a separation means which extends substantially along said at least one longitudinal cut,    (b) separating the insulation blanket along at least one longitudinal cut of the fibrous insulation layer and the respective separation means of the facing material to form separate insulation blanket sections; and    (c) inserting a first separate insulation blanket section into a non-standard sized cavity in the framework of the building.