Johns Manville International, Inc.
Tamko Roofing Products, Inc.
Honeywell Commercial Roofing Systems
Koppers, Inc.
Siplast
Bitec, Inc.
US Intec
The Garland Company, Inc.
Most other systems

New, repair, replace. No matter what the size of the job or the type of roof, Oklahoma Roofing does the job better.