OWNERSHIP: Private
FORM: Incorporated in the State of Illinois, 1981
PARENT COMPANY: None
SUBSIDIARIES: None
AFFILIATIONS WITH MANUFACTURERS, SUPPLIERS, OR CONTRACTORS: None
PROJECT INVOLVEMENT: Greater than 25,000,000 square feet annually
GEOGRAPHICAL AREA SERVICED: North America

SERVICES:

1. Visual roof evaluations

2. Verified non-destructive moisture testing:
   a. Infrared scanning
   b. Radioisotopic surveying

3. Roof construction specifications and project administration

4. Quality compliance inspection during roof construction

5. Failure investigations

6. Expert testimony

7. Field and laboratory testing

8. Preventive maintenance program design

9. Roof education workshops

KEY PERSONNEL:

    Thomas J. Gruebnau RRC; President/Project Manager
    James C. Gruebnau RRC; Vice President/Project Manager
    James R. Ragland CDT; Construction Coordinator
    John Ogorzaly; Project Coordinator
    Robert Heideman; Project Assistant