GAF
Protecting What Matters Most, for over a century
GAF is North America’s largest and most advanced roofing and waterproofing manufacturer. With customer-driven innovation, the company has protected homes, businesses, families and communities for over 130 years.
Project Spotlight
Unique products and solutions
that go way beyond the surface
Residential Roofing Systems
Shingles
Underlayments
Ventilation
Accessories
Commercial Roofing Systems
TPO / PVC
Modified Bitumen
ISO Insulation
Accessories
Specialty Building Products
Exhaust Fans
Ductwork
Speciality Fabrics
GAF Leadership Team
John Altmeyer
Chief Executive Officer
(Executive Chairman, Effective January 1, 2026)
(Executive Chairman, Effective January 1, 2026)
John Barkhouse
President
(Chief Executive Officer, Effective January 1, 2026)
(Chief Executive Officer, Effective January 1, 2026)
Martin DeBono
President, GAF Energy
Joe Dennes
SVP, Chief Technology Officer - Residential
Jim Durkin
EVP, Steep Slope Systems Sales
Alma Garnett
SVP, Commercial Roofing Sales
Philippe Georges
Chief Financial Officer
Lori Groth
Chief Information Officer
Brian Kimber
Executive Vice President, Sales
Matthew Loncar
General Counsel
Michele Moore
SVP, Supply Chain
Chris Peetz
Chief Operations Officer
Christopher Rector
Chief Marketing Officer
Hari Reddy
SVP, Chief Technology Officer - Commercial
Stephanie Shaw
Chief Human Resources Officer
Abdallah Simaika
Chief of Staff
Pete Vollmar
SVP, Sales Operations