Roofing adhesive

Abstract

An adhesive for a roofing material includes an asphalt material and reinforcing fibers dispersed in the asphalt material. The reinforcing fibers have an average length within a range of from 1.6 mm to 10 mm. The adhesive is capable of adhesively bonding a first asphalt-based roofing material to a second asphalt-based roofing material or to a roof. The adhesive is processable by conventional adhesive manufacturing equipment. In one embodiment, the adhesive further comprises a polymer mixed with the asphalt material to produce a polymer modified asphalt.

1 . An adhesive for a roofing material comprising an asphalt material and reinforcing fibers dispersed in the asphalt material, the reinforcing fibers having an average length within a range of from 1.6 mm to about 10 mm, the adhesive being capable of adhesively bonding a first asphalt-based roofing material to a second asphalt-based roofing material or to a roof, and the adhesive being processable with conventional adhesive manufacturing equipment.  
     
     
         2 . The adhesive defined in  claim 1  wherein the adhesive has a viscosity within a range of from about 500 cps to about 2000 cps at 350° F. (217° C.).  
     
     
         3 . The adhesive defined in  claim 1  wherein the reinforcing fibers are included in an amount within a range of from about 10 wt % to about 50 wt %.  
     
     
         4 . The adhesive defined in  claim 1  wherein the reinforcing fibers have an average diameter within a range of from about 10 microns to about 20 microns.  
     
     
         5 . The adhesive defined in  claim 1  wherein the asphalt material comprises an oxidized asphalt having a softening point of at least about 150° F. (66° C.).  
     
     
         6 . The adhesive defined in  claim 1  wherein the adhesive contains not more than about 5 wt % solvent.  
     
     
         7 . The adhesive defined in  claim 1  wherein the asphalt material comprises an oxidized asphalt having a softening point of at least about 150° F. (66° C.), the reinforcing fibers are included in an amount within a range of from about 10 wt % to about 30 wt %, and the reinforcing fibers have an average length within a range of from 1.6 mm to about 5 mm.  
     
     
         8 . The adhesive defined in  claim 1  which further comprises a polymer mixed with the asphalt material to produce a polymer modified asphalt.  
     
     
         9 . The adhesive defined in  claim 8  wherein the polymer modified asphalt has a softening point within a range of from about 170° F. (77° C.) to about 220° F. (104° C.).  
     
     
         10 . The adhesive defined in  claim 8  wherein the polymer comprises a styrenic elastomer.  
     
     
         11 . The adhesive defined in  claim 8  wherein the reinforcing fibers are included in an amount within a range of from 10 wt % to about 50 wt %.  
     
     
         12 . The adhesive defined in  claim 8  wherein the polymer comprises a styrenic elastomer, the polymer modified asphalt has a softening point within a range of from about 170° F. (77° C.) to about 220° F. (104° C.), the reinforcing fibers are included in an amount within a range of from about 10 wt % to about 30 wt %, and the reinforcing fibers have an average length within a range of from 1.6 mm to about 5 mm.  
     
     
         13 . The adhesive defined in  claim 12  wherein the reinforcing fibers comprise glass fibers.  
     
     
         14 . The adhesive defined in  claim 1 , wherein the roofing material comprises a reinforcement member, the reinforcement member defining a nail zone of the roofing material.  
     
     
         15 . The adhesive defined in  claim 1  which is used for bonding a reinforcement member to a roofing shingle, where the reinforcement member defines a nail zone of the shingle.  
     
     
         16 . The adhesive as defined in  claim 1 , wherein the adhesive comprises a laminate adhesive.  
     
     
         17 . The adhesive as defined in  claim 1 , wherein the adhesive comprises a sealant.  
     
     
         18 . An adhesive for a roofing material comprising an asphalt material, reinforcing fibers dispersed in the asphalt material, and roofing filler dispersed in the asphalt material, the adhesive being capable of adhesively bonding a first asphalt-based roofing material to a second asphalt-based roofing material or to a roof, and the adhesive being processable with conventional adhesive manufacturing equipment.  
     
     
         19 . The adhesive defined in  claim 18  wherein the roofing filler is included in an amount within a range of from 20 wt % to about 70 wt %.  
     
     
         20 . The adhesive defined in  claim 18  wherein the reinforcing fibers have an average length within a range of from 1.6 mm to about 10 mm.  
     
     
         21 . The adhesive defined in  claim 18  wherein the adhesive has a viscosity within a range of from about 500 cps to about 2000 cps at 350° F. (217° C.).  
     
     
         22 . The adhesive defined in  claim 18  wherein the reinforcing fibers are included in an amount within a range of from 10 wt % to about 50 wt %.  
     
     
         23 . The adhesive defined in  claim 18  which further comprises a polymer mixed with the asphalt material to produce a polymer modified asphalt.  
     
     
         24 . The adhesive defined in  claim 18  which is used for bonding a reinforcement member to a roofing shingle, where the reinforcement member defines a nail zone of the shingle.  
     
     
         25 . A roofing assembly comprising a first asphalt-based roofing material and an adhesive which is capable of adhesively bonding the first roofing material to a second asphalt-based roofing material or to a roof, the adhesive comprising an asphalt material and reinforcing fibers dispersed in the asphalt material, the reinforcing fibers having an average length within a range of from 1.6 mm to about 10 mm, the adhesive being processable with conventional adhesive manufacturing equipment.  
     
     
         26 . The roof assembly defined in  claim 25  wherein the adhesive further comprises a polymer mixed with the asphalt material to produce a polymer modified asphalt.  
     
     
         27 . A method of manufacturing an adhesive for a roofing material comprising mixing a reinforced asphalt material with a filled asphalt material to produce the adhesive, the reinforced asphalt material comprising a first asphalt material and reinforcing fibers dispersed in the first asphalt material, the filled asphalt material comprising a second asphalt material and roofing filler dispersed in the second asphalt material, the adhesive being capable of adhesively bonding a first asphalt-based roofing material to a second asphalt-based roofing material or to a roof, and the adhesive being processable with conventional adhesive manufacturing equipment.  
     
     
         28 . The method defined in  claim 27  wherein the reinforced asphalt material further comprises a polymer.