​GBI's Credentials 


GBI provides IIBEC-certified RROs and RRCs for new and retrofit construction roof inspections.  Our inspectors are professionals with experience on various roofing systems and applications.​​


​Protect your investment 


Protecting your investments is important as an owner.  Manufacturer warranties are costly and, in many circumstances, likely to be voided by certain natural occurrences such as large hail.  Roof failures, not caused by natural catastrophes, are often the result of application deficiencies.  Having an RRO on site to relay daily activities to the owner and/ or designer can keep the client informed about the project progress and assure that the work being performed is up to the agreed-upon standards of the contract documents.  ​​

​Wind uplift is often overlooked as a problem because it isn’t always an obvious defect, but the repercussions can be just as costly as hail or mechanical damage to a roof system.



Quality Assurance


​QA inspections offered


  • Full Time
  • Periodical
  • ​All Roof Types
  • IIBEC-certified RROs and RRCs