Management Bios


Executive Vice President
Sprague Mullikin graduated from San Jose State University with a B.S. in Marketing. In 1970, he started his 38 year building material distribution career with Owens Corning. Over his 23 years at Owens Corning, Sprague had numerous assignments including sales, marketing, operation and branch management. In 1993, Owens Corning sold their Supply Division to Cameron Ashley Building Products where Sprague joined as Regional Vice President. In 2000, he left Cameron Ashley as Executive Vice President to form Roofing & Insulation Supply. Through his vision to create a premier distribution business, his leadership has helped grow Roofing & Insulation Supply from the 7 original locations to 20 locations.

Regional Vice President - Insulation
Bob Doyle has over 30 years of building materials experience. He began his career with Owens Corning in distribution sales. During his years in the industry, he has led sales, marketing, supply chain, operations and manufacturing organizations. From 2000 to 2005, Bob was Senior Vice President of Therma-Tru Door Co. where he led the North American Sales and Product Innovation teams after successfully leading the operation team to record performance. Prior to joining Roofing & Insulation Supply, Bob was Owens Corning's VP/GM Residential Insulation North America. He has a proven track record of successful performance in virtually every assignment he has had during his extensive career.  Bob currently is leading the strategic planning process for RIS focused on insulation growth.  Bob holds a B.A. from the University of Massachusetts.

District Manager
Paul DeHart began his career with Roofing & Insulation Supply in 2001 as Operations Manager in the Indianapolis, IN branch.  After 4 years running operations, he accepted a position as Territory Manager calling on the building material dealer market.  In 2008, Paul relocated to Gulfport, MS as Branch Manager focusing on the growth of the insulation contractor market. Two years later, he accepted a position as Branch Manager of the Atlanta, GA branch.  Paul was promoted to Regional Vice President of the Southeast Region in September 2013.  Since becoming part of Beacon Roofing Supply, he is currently responsible for insulation sales in the Carolinas, Georgia, Louisiana, Minnesota and Texas.  Paul holds a B.S. in Mathematics from Purdue University.

District Manager
Drew Everhart began his career with BlueLinx Corp. in 2004 as an Account Manager in Atlanta, GA.  In 2006, he joined Roofing & Insulation Supply as Territory Manager in Cincinnati, OH.  In 2009, Drew relocated to New England as Branch Manager to open and run the Boston branch.  Drew successfully grew the Boston branch and was promoted to Regional Vice President / General Manager of the Eastern Region in May 2013.  As part of the Beacon Roofing Supply team, he now manages insulation sales in Ilinois, Indiana, Maryland, Massachusetts, Michigan, Missouri and New Jersey.  Drew holds a B.S. in Finance and Management Information Systems from Miami University, Ohio.


Roofing & Insulation Supply
12221 Merit Drive, Suite 1015
Dallas, TX 75251
(p) 972/239-8309
(f) 972/239-8310