GAF Leadership

Executive Leadership Team

John Altmeyer
Chief Executive Officer
Randy Bargfrede
Chief Operations Officer
Martin DeBono
President, GAF Energy
Andy Hilton
Chief Communications and Corporate Social Responsibility Officer
Brian Kimber
EVP, Sales
Alex Liebman
Head of Corporate Development
and Strategy
Matt Loncar
General Counsel
John Maitner
Chief Financial Officer
Chris Rector
Chief Marketing Officer
Dion Rooney
Chief Information Officer
Stephanie Shaw
Chief Human Resources Officer
Abdallah Simaika
Chief of Staff





Jim Durkin
SVP, Steep Slope Systems Sales
Alma Garnett
SVP, Commercial Roofing Sales
Pete Vollmar
SVP, Sales Operations