Fire resistant and intumescent laminate, useful as a vapor barrier in wood and steel constructions

Abstract

An intumescent laminate vapor barrier is fabricated with a fire-resistant putty. This has the advantage that it slows down the transmission of heat, expands when being exposed to temperature and thereby seals the cracks which could have been formed during the installation. It also protects the structures (framings) from fire and the sheathing made up of gypsum-boards, plywood, Oriented Strand Boards (OSB) or any other type.

1 . A thin laminate configured as a humidity barrier in wall assemblies and ceilings of constructions of wood, steel or other types, wherein said laminate comprises fire retardant putty, optionally covered by one or two sides with paper or another laminar material of any type, or applied directly without adhesive onto the surface of a gypsum board or another constructive element, without limitations of its type of surface. 
   
   
       2 . The thin laminate as in  claim 1 , wherein it is covered on one side with paper or other laminar material of any type. 
   
   
       3 . The thin laminate as in  claim 1 , wherein it is covered on both sides with paper or other laminar material of any type. 
   
   
       4 . The thin laminate as in  claim 1 , wherein it is not covered on either side. 
   
   
       5 . The thin laminate as in  claim 1 , wherein it is used on both sides of the insulation material of the wall assemblies. 
   
   
       6 . The thin laminate as in  claim 1 , wherein it is produced by impregnating the fire-resistant putty into a fiberglass fabric or a cloth made with natural or synthetic fibers or others, woven or pressed, with or without covering on its external faces by paper or any other laminar material of any type. 
   
   
       7 . The thin laminate as in  claim 1 , wherein the fire-resistant putty laminate attaches or bonds itself onto the surface to be protected, either with or without the use of adhesives, by means of cold presses or hot presses with temperatures less than one hundred degrees Celsius.