Via a series of individual Job Orders under a multi-million dollar Job Order Contract, TMG performed exterior and interior renovations to historic structures in the Loudoun County courthouse complex. Exterior repairs included repointing and cleaning the masonry, taking precautions to preserve the historic integrity of the building while blending the repaired sections with the original. Matching the old and new brick and mortar to the engineer’s specifications was a time-consuming and tedious process. The color and texture of the old and new brick, mortar and pointing had to match seamlessly. TMG relied on a brick supplier it had used for a similar historic masonry renovation nearby and was able to find material that exceeded specifications.
The biggest obstacle was the inclement weather. The sub-freezing temperatures and wet conditions inhibited mortar curing. To resolve this, the Superintendent devised a modular enclosed heating area that covered the side of the building, so the masons could comfortably repoint the brick and the lime-based mortar could cure under consistent conditions. The enclosed area allowed for a proper curing time of seven days in temperatures above 40 degrees.
Structural repairs in the attic and basement included repairing and replacing concrete piers and damaged trusses and joists. Roofing renovation included repairing and/or replacing the slate roof, flat roof and all of the copper flashing as well as installing new copper gutters and down spouts. The team painted all exterior window trim as well as interior court rooms and offices. Other work included installing a new lightning protection system and new bird netting around the entire facade along the ledging.
TMG also was contracted to clean and restore several monuments at the courthouse complex, including memorials for World War I, World War II, the Korean War and the Vietnam War.
Under a separate contract, TMG removed the existing brick paver sidewalk and replaced it with an ADA-compliant curved brick ramp. In addition, a new brick staircase was constructed between the old and new courthouses.