R. B. Hash & Associates, Inc. is a family owned and operated business specializing in roofing, sheet metal, waterproofing systems, and architectural metal, servicing the commercial, industrial, and residential markets. Founded in 1991 and based in Houston, Texas, R. B. Hash is licensed in both Texas and Louisiana. R. B. Hash is experienced in many roofing systems including TPO/PVC/EPDM, modified, BUR, coatings, tile, slate, composition shingles, standing seam, and many more.