Flat Roof Repair - Leon County Courthouse, Monroe Street, Tallahassee, FL

The third courthouse to stand in this location, and home of Florida’s 2nd Judicial Circuit Court, this incarnation of the building was constructed in 1989. Its distinctive design, with tinted windows that reflect the skyline, framed by multiple story white concrete columned walkways, make it one of the most recognizable structures in the area. After thirty years, it required renovations, and we were called to repair some minor filtration issues along a section of the flat concrete and paver stone roof and surrounding parapet wall. This was a labor intensive project, requiring several phases to complete properly. The first phase involved removing materials. This started with palatalizing, and down stacking the paver stones off the roof and onto a secure location on the ground. Then we could access the substrate to remove the existing coping metal, roofing membrane, drain inserts, wood, and other damaged pre-existing materials. We ended by cleaning up the debris and measuring and creating a custom template to send in with our radial coping order to replace the damaged sections. The second phase involved cleaning the surfaces and repairing the damaged and/or removed sections. We fixed the light weight concrete using concrete patch, damaged wood along the parapet wall with new sections, flashing with new and the custom sections we had ordered, retrofit drain inserts, rolled membrane adhesive and membrane onto the roof, and made sure everything was sealed properly. The third phase was repairing the parapet wall and expansion joints. Per our contract, this included installing aluminum counter flashing below the termination bar using specified SS fasteners, covering seam straps with seam tape, filling voids in the walls with appropriate materials, rolling on the spec specified white base, and finishing it off with a sealant. We were provided a detail for the stainless steel expansion joints that we followed to install the base and cap sheets, flexible waterproofing membrane, and expansion joint cap. The last phase was loading everything up, and the final cleanup, to leave the roof in tip top shape.