
GAF Leadership
Executive Leadership Team

John Altmeyer
Chief Executive Officer
Chief Executive Officer

Randy Bargfrede
Chief Operations Officer
Chief Operations Officer

Martin DeBono
President, GAF Energy
President, GAF Energy

Andy Hilton
Chief Communications and Corporate Social Responsibility Officer
Chief Communications and Corporate Social Responsibility Officer

Brian Kimber
EVP, Sales
EVP, Sales

Alex Liebman
Head of Corporate Development
and Strategy
Head of Corporate Development
and Strategy

Matt Loncar
General Counsel
General Counsel

John Maitner
Chief Financial Officer
Chief Financial Officer

Chris Rector
Chief Marketing Officer
Chief Marketing Officer

Dion Rooney
Chief Information Officer
Chief Information Officer

Stephanie Shaw
Chief Human Resources Officer
Chief Human Resources Officer

Abdallah Simaika
Chief of Staff
Chief of Staff

Jim Durkin
SVP, Steep Slope Systems Sales
SVP, Steep Slope Systems Sales

Alma Garnett
SVP, Commercial Roofing Sales
SVP, Commercial Roofing Sales

Pete Vollmar
SVP, Sales Operations
SVP, Sales Operations