UT Family Practice Medical Clinic, Waco, TX
Completed July 2004


Product: Situra Redline 40 Expansion Joint

Owner: University of Texas

Consultant: Global Roofing Consultants, Inc., Whitney, TX, Dick Tallichet, President

Roofing Contractor: Parsons Commercial Roofing, Waco, TX, Mikki Roberts


This reroofing project included 417 lineal feet of Situra Redline 40 Expansion Joint. The consultant specified Redline 40 because due to the complexity of the joint design and the need to complete this project quickly over continuously occupied space. In addition, drainage could also be improved by using the flat profile of Redline at the expansion joints in lieu of the old raised curbs which blocked water flow to the roof edge and to drains.

The Redline 40 joint system was fabricated to provide a custom-fit and watertight joint. It was installed in one monolithic piece saving the roofer time and completely eliminated the need for field splices. The installation of the joint took less than three hours from start to finish.

Redline is designed for flat profile installation on built-up roofing and modified asphalt applications where the fleece lined flaps of the joint are set in hot asphalt (Type III or IV). After the installation of the roofing base ply felt the Redline is centered over the expansion joint location. The base ply felt is cut directly over the centerline of the joint and the gap is filled with compressible insulation. The Redline joint is set in a mopping of hot asphalt and then stripped in with the flashing plies of roofing felt.

After the strip-in procedure the Redline may either be left with the center gland exposed or it may be covered with a modified cap sheet as on this project. The owner, consultant and roofer are looking forward to many years of watertight performance from the Redline 40 Expansion Joint System used on this project