All Owens Corning Preferred Contractors must meet the following criteria:

• In business for at least three years
• No adverse legal actions, liens, judgments, etc. against the company during the past five years
• A clear credit record with no account more than 90 days past due
• All required state and local licenses procured and current
• General liability insurance is required
• Good professional reputation and customer references
• No bankruptcies in the past seven years