Insulated pitched roofing system and method of installing same

Abstract

An insulated pitched roofing system for a sloped deck in which an insulating sheet is adhered to the sloped deck or to a roofing substrate and the roof components are adhered to the insulating sheet with a polymer adhesive. The polymer adhesive is preferably a froth liquid polyurethane foam.

1 . A method of installing an insulated pitched roofing system having a plurality of roof components and a pitched roof deck, the method comprising the steps of: 
 adhering, with a polymer adhesive, an insulating sheet to the pitched roof deck or to a roof substrate attached to the pitched roof deck; and    adhering the roof components to the insulating sheet.    
   
   
       2 . The method of  claim 1 , wherein said roof component adhering step comprises: 
 applying a polymer adhesive on the insulating sheet;    placing a portion of a lower surface of a roof component in substantial contact with the polymer adhesive; and    allowing the polymer adhesive to bond the roof component to the insulating sheet.    
   
   
       3 . The method of  claim 2 , wherein the polymer adhesive is a polyurethane foam.  
   
   
       4 . The method of  claim 2 , wherein the polymer adhesive is a two component froth liquid polyurethane foam having a density of about one to about four pounds per cubic foot and a reactivity period of about one half to about ten minutes.  
   
   
       5 . An insulated pitched roofing system for insulating a pitched roof deck and attaching overlapping roof components thereto, the system comprising: 
 a plurality of insulation boards of unitary construction, each said insulation board adhered and bonded to the pitched roof deck, each said insulation board having a planer upper surface and each said insulation board placed in abutting contact with an adjacent said insulation board to form a continuous, uniform insulative layer;    a polymer adhesive adhering said plurality of insulation boards to the pitched roof deck and    said polymer adhesive adhering the overlapping roof components to said plurality of insulation boards.    
   
   
       6 . The insulated pitched roofing system of  claim 5 , wherein said polymer adhesive is a polyurethane.  
   
   
       7 . The insulated pitched roofing system of  claim 5 , wherein said polymer adhesive is a foamable polymer adhesive.  
   
   
       8 . The insulated pitched roofing system of  claim 7 , wherein said polymer adhesive is a plural component, liquid polyurethane foam.  
   
   
       9 . The insulated pitched roofing system of  claim 5 , wherein each said board of said plurality of insulation boards includes a substantially flat lower surface adhered to the pitched roof deck.  
   
   
       10 . The insulated pitched roofing system of  claim 5 , wherein each said board of said plurality of insulation boards includes a continuous flat upper surface to which the roof components are adhered.  
   
   
       11 . In a pitched roofing system having a deck, a waterproof membrane attached to the deck, and overlapping profiled roof components, the improvement comprising: 
 an insulative layer between the waterproof membrane and the profiled roof components, said insulative layer comprising a plurality of insulation boards arranged in contacting relationship with each other on the waterproof membrane, each said insulation board having a generally flat upper surface and a lower surface;    a polymer adhesive adhering said lower surface of said plurality of insulation boards to the waterproof membrane; and    said polymer adhesive adhering the profiled roof components to said upper surface of said plurality of insulation boards.    
   
   
       12 . The pitched roofing system of  claim 11 , wherein said plurality of insulation boards are made of expanded rigid polystyrene plastic.  
   
   
       13 . The pitched roofing system of  claim 11 , wherein said insulative layer has a continuous planer upper surface.  
   
   
       14 . The pitched roofing system of  claim 13 , wherein said polymer adhesive is an expanding polyurethane foam.  
   
   
       15 . An energy efficient, waterproof, pitched roofing system for installation on a roof deck attached to a plurality of pitched truss rafters, the system comprising: 
 a waterproof substrate attached to the roof deck;    a plurality of insulation boards arranged in contacting relationship with one another and adhesively bonded to said waterproof substrate with a polymer adhesive, said polymer adhesive being an expanding foam adhesive; and    a plurality of profiled roof components adhesively bonded to said plurality of insulation boards with said polymer adhesive.    
   
   
       16 . The pitched roofing system of  claim 15 , wherein said arranged plurality of insulation boards comprise a substantially continuous planer lower surface bonded to said waterproof substrate and a substantially continuous planer upper surface.