Roofing system and self-bridging tape for modular building construction roof joints

Abstract

A membrane roofing system for buildings of modular construction includes a reinforced laminate tape that seals the roofjoints between adjacent modular building units. The tape includes a tacky elastomeric adhesive layer with a release strip releasably adhered to the underside thereof to expose a tacky underside surface to be adhered to adjacent edges of the membrane sheets of adjacent building modules, a reinforcing scrim embedded in the tacky elastomer layer and bridging across the gap between the adjacent building modules, and a protective layer covering the outer surface of the tacky elastomer.

We claim:  
     
         1 . A laminate roofing tape to bridge the gap between adjacent building modules provided with roofing membranes, the tape comprising: 
 a tacky elastomeric adhesive layer with an underside and an oppositely facing outer face,    a porous reinforcing layer embedded in the adhesive layer,    a protective membrane layer permanently adhered to and covering the outer face of the adhesive layer, and    a release strip releasably adhered to and covering the underside of the adhesive layer.    
     
     
         2 . A roofing system for buildings constructed from side-by-side modular units, the roofing system comprising: 
 roofing membrane sheets secured to the roof deck of the modular units, and    a laminate roofing tape adhered to adjacent edge portions of the adjacent membrane sheets and spanning across the gap between adjacent modular units,    the tape including 
 a tacky elastomeric adhesive layer with an underside and an oppositely facing outer face,  
 a porous reinforcing layer embedded in the adhesive layer,  
 a protective membrane layer permanently adhered to and covering the outer face of the adhesive layer, and  
 a release strip releasably adhered to and covering the underside of the adhesive layer.  
   
     
     
         3 . A laminate roofing tape to bridge the gap between adjacent building modules provided with roofing membranes, the tape comprising: 
 a tacky elastomeric adhesive layer with an underside and an oppositely facing outer face, the elastomeric adhesive including cross-linked polymers,    a porous reinforcing layer embedded in the adhesive layer,    a protective membrane layer permanently adhered to and covering the outer face of the adhesive layer, and    a release strip releasably adhered to and covering the underside of the adhesive layer.    
     
     
         4 . A laminate roofing tape to bridge the gap between adjacent building modules provided with roofing membranes, the tape comprising: 
 a tacky elastomeric adhesive layer with an underside and an oppositely facing outer face,    a porous reinforcing layer embedded in the adhesive layer, and    a release strip releasably adhered to and covering the underside of the adhesive layer.