Roofing insulation fastening system

Abstract

A system for securing a plurality of slabs of insulation to an underlying roof decking substructure by a plurality of batten strips is disclosed, wherein the plurality of slabs of insulation are disposed within a grid-type arrangement comprising a plurality of transversely oriented rows of the slabs of insulation and a plurality of longitudinally oriented columns of the slabs of insulation. Alternative columns of the slabs of insulation are preferably longitudinally offset with respect to the columns of the slabs of insulation which are interposed between the alternative columns of the slabs of insulation so as to effectively stagger adjacent or abutting slabs of insulation with respect to each other for enhancing wind uplift resistance properties. In addition, the plurality of batten strips are oriented transversely across the adjacent, abutting columns of the slabs of insulation so as to permit each one of the plurality of transversely oriented batten strips to fixedly secure the plurality of slabs of insulation to the underlying roof decking substructure.

1 . A fastening system for fastening slabs of roofing insulation onto an underlying roof decking substructure of a roofing structure, comprising: 
 a plurality of slabs of roofing insulation; and    batten means disposed directly atop said plurality of slabs of roofing insulation for fixedly engaging underlying roof decking substructure so as to fixedly secure said plurality of slabs of roofing insulation to the roof decking understructure.    
     
     
         2 . The fastening system as set forth in  claim 1 , wherein: 
 said plurality of slabs of roofing insulation are disposed within a grid arrangement comprising laterally extending rows and longitudinally extending columns.    
     
     
         3 . The fastening system as set forth in  claim 2 , wherein: 
 each one of said plurality of slabs of roofing insulation comprises a pair of oppositely disposed side edge portions and a pair of oppositely disposed end edge portions; and    said plurality of slabs of roofing insulation are disposed within said grid arrangement comprising said laterally extending rows and said longitudinally extending columns such that pairs of said oppositely disposed side edge portions of adjacent ones of said plurality of slabs of roofing insulation, disposed within said laterally extending rows, are disposed in abutting contact with each other, and pairs of said oppositely disposed end edge portions of adjacent ones of said plurality of slabs of roofing insulation, disposed within said longitudinally extending columns, are disposed in abutting contact with each other.    
     
     
         4 . The fastening system as set forth in  claim 3 , wherein: 
 said batten means extend across said grid arrangement of said plurality of slabs of insulation so as to span a multiplicity of said plurality of slabs of insulation disposed within said laterally extending rows and said longitudinally extending columns.    
     
     
         5 . The fastening system as set forth in  claim 4 , wherein: 
 said batten means comprises a plurality of batten members which extend across said grid arrangement of said plurality of slabs of insulation at locations intermediate said oppositely disposed end edge portions of said plurality of slabs of insulation so as to extend across oppositely disposed side edge portions of said plurality of slabs of insulation.    
     
     
         6 . The fastening system as set forth in  claim 2 , wherein: 
 first alternative ones of said longitudinally extending columns of said plurality of slabs of insulation disposed within said grid arrangement of said laterally extending rows and said longitudinally extending columns are longitudinally offset with respect to second alternative ones of said longitudinally extending columns of said plurality of slabs of insulation whereby adjacent ones of said plurality of slabs of insulation will be longitudinally offset with respect to each other so as to effectively reduce any tendency of said plurality of slabs of insulation to become separated from the underlying roof decking substructure in a continuously propagated manner when the roofing structure is subjected to wind uplift forces.    
     
     
         7 . The fastening system as set forth in  claim 5 , wherein: 
 said batten members are selected from the group comprising batten strips, batten straps, and batten bars.    
     
     
         8 . The fastening system as set forth in  claim 1 , wherein: 
 said batten means is fabricated from a thermoplastic material which is selected from the group comprising polyethylene terephthalate (PET), polypropylene, NYLON®, polyester, and polyvinylchloride (PVC).    
     
     
         9 . The fastening system as set forth in  claim 1 , wherein: 
 said batten means comprises a two-ply member formed from a flattened extruded tube.    
     
     
         10 . The fastening system as set forth in  claim 1 , wherein: 
 said batten means comprises a single-ply member.    
     
     
         11 . A roofing system, comprising: 
 a plurality of slabs of roofing insulation; and    batten means disposed directly atop said plurality of slabs of roofing insulation for fixedly engaging underlying roof decking substructure so as to fixedly secure said plurality of slabs of roofing insulation to the roof decking understructure.    
     
     
         12 . The roofing system as set forth in  claim 11 , wherein: 
 said plurality of slabs of roofing insulation are disposed within a grid arrangement comprising laterally extending rows and longitudinally extending columns.    
     
     
         13 . The roofing system as set forth in  claim 12 , wherein: 
 each one of said plurality of slabs of roofing insulation comprises a pair of oppositely disposed side edge portions and a pair of oppositely disposed end edge portions; and    said plurality of slabs of roofing insulation are disposed within said grid arrangement comprising said laterally extending rows and said longitudinally extending columns such that pairs of said oppositely disposed side edge portions of adjacent ones of said plurality of slabs of roofing insulation, disposed within said laterally extending rows, are disposed in abutting contact with each other, and pairs of said oppositely disposed end edge portions of adjacent ones of said plurality of slabs of roofing insulation, disposed within said longitudinally extending columns, are disposed in abutting contact with each other.    
     
     
         14 . The roofing system as set forth in  claim 13 , wherein: 
 said batten means extend across said grid arrangement of said plurality of slabs of insulation so as to span a multiplicity of said plurality of slabs of insulation disposed within said laterally extending rows and said longitudinally extending columns.    
     
     
         15 . The roofing system as set forth in  claim 14 , wherein: 
 said batten means comprises a plurality of batten members which extend across said grid arrangement of said plurality of slabs of insulation at locations intermediate said oppositely disposed end edge portions of said plurality of slabs of insulation so as to extend across oppositely disposed side edge portions of said plurality of slabs of insulation.    
     
     
         16 . The roofing system as set forth in  claim 12 , wherein: 
 first alternative ones of said longitudinally extending columns of said plurality of slabs of insulation disposed within said grid arrangement of said laterally extending rows and said longitudinally extending columns are longitudinally offset with respect to second alternative ones of said longitudinally extending columns of said plurality of slabs of insulation whereby adjacent ones of said plurality of slabs of insulation will be longitudinally offset with respect to each other so as to effectively reduce any tendency of said plurality of slabs of insulation to become separated from the underlying roof decking substructure in a continuously propagated manner when the roofing structure is subjected to wind uplift forces.    
     
     
         17 . The roofing system as set forth in  claim 15 , wherein: 
 said batten members are selected from the group comprising batten strips, batten straps, and batten bars.    
     
     
         18 . The roofing system as set forth in  claim 11 , wherein: 
 said batten means is fabricated from a thermoplastic material which is selected from the group comprising polyethylene terephthalate (PET), polypropylene, NYLON®, polyester, and polyvinylchloride (PVC).    
     
     
         19 . The roofing system as set forth in  claim 11 , wherein: 
 said batten means comprises a two-ply member formed from a flattened extruded-tube.    
     
     
         20 . The roofing system as set forth in  claim 11 , wherein: 
 said batten means comprises a single-ply member.