Roofing system and apparatus for applying rolled roofing material

Abstract

An adhesive for securing a roofing system to a substrate includes a magnesium oxide matrix having dispersed therethrough a plurality of particles or fibers. The dispersant coating is operative to suppress electrostatic attraction between the particles or fibers. An elastomeric overlayer is placed in interfacial contact with the magnesium oxide matrix containing the plurality of particles or fibers prior to set of the matrix so as to form a bond therebetween. A roofing system is detailed that includes an intermediate layer having an asphaltic layer that terminates in an asphaltic surface and an exposed non-asphaltic fibrous surface. An elastomeric outer weatherproof coating is applied in adhesive contact with the fibrous surface resulting in a weatherproof roofing system. The elastomeric outer weatherproof coating is amenable to application with a sprayer or roller with the non-asphaltic fibrous surface absorptive of such a liquid coating.

1 . An adhesive for securing a roofing system to a substrate comprising: 
 a magnesium oxide matrix;    a plurality of particles or fibers having a dispersant coating applied thereto prior to mixing within said matrix, said dispersant coating suppressing electrostatic attraction; and    an elastomeric overlayer placed in interfacial contact with said matrix prior to set of said matrix.    
   
   
       2 . The adhesive of  claim 1  further comprising a fiber mat at least partially embedded in said matrix.  
   
   
       3 . The adhesive of  claim 1  wherein said plurality of particles or fibers are open-celled foam.  
   
   
       4 . The adhesive of  claim 1  wherein said plurality of particles or fibers are formed of a synthetic polymeric material.  
   
   
       5 . The adhesive of  claim 1  further comprising an underlying layer of magnesium oxide matrix having dispersant coated particles or fibers therein wherein the density of said intermediate matrix between the substrate and said matrix is lower than that of said matrix.  
   
   
       6 . A process for applying a roofing system to a roof substrate comprising: 
 mixing proximal to said roofing substrate a quantity of dispersant coated particles or fibers with a magnesium oxide slurry to form a wet magnesium oxide matrix;    extruding said wet magnesium oxide matrix on the roof substrate; and    contacting an elastomeric membrane surface with said wet magnesium oxide matrix.    
   
   
       7 . The process of  claim 6  wherein said wet magnesium oxide matrix is applied to a thickness of from one-quarter to one inch.  
   
   
       8 . The process of  claim 6  further comprising applying a heavy roller to an upper surface opposing the membrane surface to assure interfacial contact between said membrane surface and said wet magnesium oxide matrix.  
   
   
       9 . The process of  claim 6  further comprising forming a lap joint between the opposing upper surface and a second membrane surface of a contiguous second membrane surface.  
   
   
       10 . A roofing system comprising: 
 an intermediate layer having an asphaltic surface and an exposed non-asphaltic fibrous surface;    a roof substrate in adhesive contact with the asphaltic surface; and    an elastomeric outer weatherproof coating in adhesive contact with the fibrous surface.    
   
   
       11 . The roofing system of  claim 10  wherein the fibrous surface comprises a substance selected from the group consisting of: polyester, glass, and polyalkylenes.  
   
   
       12 . The adhesive of  claim 10  wherein the fibrous surface is woven.  
   
   
       13 . The adhesive of  claim 10  wherein the fibrous surface is non-woven.  
   
   
       14 . An asphalt applicator comprising: 
 a molten asphalt reservoir having a base and an opening for receiving solid asphalt charges;    a heating element within said reservoir;    a tip angled to insert within a rolled roofing material lap in fluid communication with said reservoir;    a valve intermediate between said reservoir and said tip; and    a wheel external to and supporting said reservoir.    
   
   
       15 . The applicator of  claim 14  further comprising: 
 a thermostat coupled to said heating element.    
   
   
       16 . The applicator of  claim 14  wherein said heating element is heating by line power.  
   
   
       17 . The applicator of  claim 14  further comprising: 
 a handle mounting a valve controller.    
   
   
       18 . A process for applying a roofing system comprising: 
 extruding onto roofing substrate a quantity of a wet magnesium oxide matrix comprising dispersant coated particles or fibers within a magnesium oxide slurry from a bifurcated nozzle from a matrix reservoir via a delivery hose;    laying and compressing a rolled sheet of membrane sheeting onto said wet magnesium oxide matrix with an applicator according to  claim 14.