Roofing Materials with Metallic Appearance

Abstract

Provided are materials and methods related to a roofing material comprising at least two layers of polymeric materials, a top layer exposed to the environment and a bottom layer contacting the roof structure, the top layer including an amount of metallic appearing special effect pigment material to impart a metallic appearance. The polymeric material may be a thermoplastic olefin resin, a polyvinyl chloride resin, or other material. Additionally, the polymeric materials contain UV stabilizers and/or flame retardants, smoke suppressants or other fillers.

1 . A roofing material for application to a roof structure comprising at least two layers of polymeric materials, an exposed top layer and a bottom layer contacting the roof structure, the top layer including an amount of metallic appearing effect pigment material sufficient to impart a metallic appearance. 
     
     
         2 . The roofing material of  claim 1 , wherein the top layer comprises a thermoplastic olefin resin. 
     
     
         3 . The roofing material of  claim 1 , wherein the top layer comprises a polyvinyl chloride resin. 
     
     
         4 . The roofing material of  claim 1 , wherein the polymeric materials each independently contain UV stabilizers. 
     
     
         5 . The roofing material of  claim 1  comprising three layers, wherein a scrim is located between the top layer and the bottom layer. 
     
     
         6 . The roofing material of  claim 1 , wherein the polymeric materials contain a flame retardant and smoke suppressant. 
     
     
         7 . The roofing material of  claim 1 , wherein the metallic appearing effect pigment material is a mica based pigment. 
     
     
         8 . A roofing material for application to a roof structure comprising a shingle having at least two layers of polymeric materials, an exposed capstock layer and a bottom layer contacting the roof structure, the capstock layer including an amount of metallic appearing effect pigment material sufficient to impart a metallic appearance. 
     
     
         9 . The roofing material of  claim 8 , wherein the capstock layer comprises a thermoplastic olefin resin. 
     
     
         10 . The roofing material of  claim 8 , wherein the capstock layer comprises a polyvinyl chloride resin. 
     
     
         11 . The roofing material of  claim 8 , wherein the polymeric materials each independently contain UV stabilizers. 
     
     
         12 . The roofing material of  claim 8  comprising three layers, wherein a scrim is located between the capstock layer and the bottom layer. 
     
     
         13 . The roofing material of  claim 8 , wherein the polymeric materials contain a flame retardant and smoke suppressant. 
     
     
         14 . A reflective polymeric membrane for application to a roof structure comprising at least one layer of polymeric material including an amount of metallic appearing effect pigment material sufficient to impart a metallic appearance. 
     
     
         15 . The reflective polymeric membrane of  claim 14 , wherein the effect pigment material is present in an amount of about 0.5% by weight to about 3.0% by weight based on total weight of the reflective polymeric membrane. 
     
     
         16 . The reflective polymeric membrane of  claim 14 , wherein total solar reflectance is from about 20% to about 80%. 
     
     
         17 . The reflective polymeric membrane of  claim 14 , wherein total solar reflectance is from about 50% to about 80%. 
     
     
         18 . The reflective polymeric membrane of  claim 14 , wherein the effect pigment material is a mica based pigment. 
     
     
         19 . A process for preparing a reflective polymeric membrane, comprising the steps of:
 melting a plastic resin;   adding a flame retardant to the melted resin;   adding a metallic appearing effect pigment material; and   forming the reflective polymeric membrane by low shear extrusion or calendaring.   
     
     
         20 . The process of  claim 19 , further comprising adding at least one UV stabilizer and at least one IR reflective or IR transparent pigment. 
     
     
         21 . The process of  claim 19 , wherein the effect pigment material is added in an amount of about 0.5% by weight to about 3.0% by weight based on total weight of the reflective polymeric membrane.