Shingle with enhanced bonding

Abstract

A shingle which includes a substrate, granules deposited on the substrate, a first material strip applied to the top of the substrate, a second material strip applied to the bottom of the substrate, and an adhesive applied to the second material strip. The second material strip is positioned along an edge of the substrate such that when a shingle is applied to a roof overlaying an existing shingle, the adhesive adheres the second material strip of the overlaying shingle to the first material strip of the existing shingle. The second material strip is applied to the bottom of the substrate prior particles being applied to the bottom surface of the substrate.

1 . A shingle comprising:
 an asphalt coated substrate;   a first material strip applied on a top side of the substrate;   granules disposed on a top side of the substrate which comprises the first material strip;   a second material strip applied on a bottom side of the substrate and closer to a first edge than any other edge; and   an adhesive applied to an exposed face of the second material strip.   
     
     
         2 . The shingle of  claim 1 , further comprising a third material strip applied on the bottom side of the substrate and closer to a second edge than any other edge, wherein the second edge is opposite and parallel to the first edge. 
     
     
         3 . The shingle of  claim 2 , wherein the third material strip comprises of a material to which the adhesive does not adhere. 
     
     
         4 . The shingle of  claim 2 , wherein the second material strip is located substantially the same distance from the first edge as the third material strip is located from the second edge. 
     
     
         5 . The shingle of  claim 1 , wherein the second material strip is formed from a material selected from the group consisting of: polyester, polypropylene, polyethylene, polyamide, polystyrene, polyethylene terephthalate, polyacrylonitrile, aramid, and combinations thereof. 
     
     
         6 . The shingle of  claim 2 , wherein the first material strip is located equidistant from the first edge and the second edge. 
     
     
         7 . The shingle of  claim 6 , wherein the second material strip is positioned such that when the shingle is installed on a roof to partially cover a previously installed shingle, the second material strip is operable to substantially overlap a first material strip of the previously installed shingle. 
     
     
         8 . The shingle of  claim 7 , wherein the second material strip has a thickness operable to cause the adhesive to contact the first material strip. 
     
     
         9 . A shingle comprising:
 an overlay comprising:
 an asphalt coated overlay substrate; 
 a first material strip applied to a top surface of the overlay substrate; and 
 granules disposed on the top surface of the overlay substrate; and 
   an underlay comprising:
 an asphalt coated underlay substrate; 
 granules disposed on a top surface of the underlay substrate; 
 a second material strip applied on a bottom side of the underlay substrate closer to a first edge than any other edge of the underlay substrate; and 
 an adhesive adhered to the second material strip. 
   
     
     
         10 . The shingle of  claim 9 , further comprising a third material strip applied on the bottom side of the overlay substrate and closer to a second edge of the overlay substrate than any other edge of the overlay substrate, wherein the second edge of the overlay substrate is opposite and parallel to a first edge of the overlay substrate. 
     
     
         11 . The shingle of  claim 10 , wherein the third material strip comprises a material to which the adhesive does not adhere. 
     
     
         12 . The shingle of  claim 10 , wherein the third material strip is comprised of a material to which the adhesive does not adhere. 
     
     
         13 . The shingle of  claim 10 , wherein the second material strip is located substantially the same distance from the first edge as the third material strip is located from the second edge. 
     
     
         14 . The shingle of  claim 10 , wherein the second material strip is formed from a material selected from the group consisting of: polyester, polypropylene, polyethylene, polyamide, polystyrene, polyethylene terephthalate, polyacrylonitrile, aramid, and combinations thereof. 
     
     
         15 . The shingle of  claim 9 , wherein the first material strip is located at point mid-way between the first edge and a second edge. 
     
     
         16 . The shingle of  claim 9 , wherein the second material strip is located such that when the shingle is installed on roof and partially covering a previously installed shingle, the second material strip substantially overlaps a first material strip of the previously installed shingle. 
     
     
         17 . The shingle of  claim 16 , wherein the second material strip is formed from a material with a thickness that causes the adhesive to make contact with the first material strip. 
     
     
         18 . A method of stacking shingles comprising:
 placing a first shingle in contact with a second shingle, the first shingle and the second shingle each having an upper face coated with granules, a lower face having a first material and a second material, and an adhesive applied to the second material;   arranging the first and second shingles such that the first shingle and the second shingle are longitudinally aligned and the first shingle substantially covers the second shingle;   orienting the first shingle such that its lower face is in contact with the lower face of the second shingle, and   further orienting the first shingle so that its first material is in contact with the adhesive of the second material of the second shingle.   
     
     
         19 . The method of  claim 18 , further comprising arranging a third and fourth shingle in the manner of the first and second shingle; and placing the upper face of either the third or fourth shingle in contact with and longitudinally aligned with the upper face of either the first or second shingle. 
     
     
         20 . The method of  claim 19 , wherein the second material strip is formed from materials selected from the group consisting of: polyester, polypropylene, polyethylene, polyamide, polystyrene, polyethylene terephthalate, polyacrylonitrile, aramid, and combinations thereof.