jacksonville court house
Penetron Specialty Products' (PSP) floor preparation system was used to renovate the old federal courthouse in Jacksonville, Fla.

Penetron Specialty Products' (PSP) floor preparation system was used in the renovation of the old federal courthouse in Jacksonville, Fla.

The old federal courthouse is a landmark building that opened in 1933. It was replaced by the new Bryan Simpson U.S. Courthouse in 2008. The $31 million renovation of the former federal courthouse is the last major component of the $350 million Duval County Courthouse complex construction. The new county courthouse opened last year. 

The old federal courthouse was renovated for the state attorney’s office. After numerous delays in the bidding process and construction, the renovation project was completed by Morganti construction company in February. 

“When you renovate an old building with historic requirements that have to be met, there are always plenty of challenges, because things you did not know were there become apparent during the floor prep work,” said Pete Trainor, PSP's vice president of sales.

There were plenty of challenges for the floor installer, David Allen Co. and the Penetron team when they began preparation and treatment of the 44,000 square-foot, below-grade basement floor. According to Trainor, the existing floor substrate was in very poor condition and the floor elevations were erratic; these had to be adjusted and blended to allow for a flat finished floor surface. In addition, the old electrical conduct trenches were filled, mortar beds removed, and the existing terrazzo either removed or encapsulated. Hundreds of feet of footage with cracks were cleaned and filled, and the elevator thresholds were adjusted to meet ADA compliance (demolition of existing features was very limited due to historic guidelines).

The PSP floor treatment was done with the VB 225 moisture vapor reduction system, Primer STX 100 acrylic primer and Renew WS self-leveling overlayment wear surface. The final flooring was a clear sealer and Tremco Vulkem coating system.

For more information, visit penetronsp.com.