Job Overview. Ray's Roofing Supply - INSIDE SALES REPRESENTATIVE – Chicago, IL. Ray’s Roofing Supply. a division of GW Murphy Inc., is a rapidly expanding family-owned distributor and retailer of roofing materials and building supplies. We have proudly served the industry for over 40 years and have current locations in Illinois, Indiana, Louisiana and Mississippi. Throughout the years we have gained the reputation as experts in the roofing indust...