Broward County Judicial Complex Midrise / Fort Lauderdale, FL
LEED NC / Gold / 10/30/2018
Spinnaker Services: Consulting, Commissioning, Energy Modeling
Russell and Dawson / Broward County / Lucini / Pirtle Construction
Spinnaker Group provided LEED Consulting, Building Commissioning and Energy Modeling for this 64,000 sf judicial complex. The major renovation for Broward County achieved LEED Gold certification in 2018. The project was an integral part of the complex’s re-development, acting as a critical support facility to the adjacent courthouse and its associated services. The work encompassed the full renovation and interior construction fit-out on four floors of the existing midrise building.
This renovated complex now facilitates offices for the state attorney, public defender, clerk of courts, and the county's sheriff; a wedding chapel; and offices for public records and child-support enforcement.
This project started as a LEED for Commercial Interiors renovation project for just one of the floors in the existing building. Due to the early advocacy efforts of the LEED team, the project team was able to convince the building operators that an expanded scope was needed to improve the performance of the entire building. Therefore, part way through design development the team switched to LEED for New Construction as a Major Renovation project and looked toward enhancements of the existing MEP systems and interior fit-out for all floors in the building.
One of the challenges of the project was considering how to accommodate preferring parking for low-emitting fuel-efficient vehicles in a shared access parking structure, where users of this building only parked in a portion of the larger structure. The design team coordinated with the local parking authority and other end-users of the garage to designate certain spaces through controlled access to certain floors for both general parking and preferred spaces for green vehicles. The designated spots were selected across multiple floors for their proximity to the building entrances on the first-floor and third-floor catwalk.
This LEED Gold project obtained the maximum available points under the Building Reuse credit for maintaining the vast majority of existing walls, floor and roof materials. The LEED Gold rating included a full score (5/5) for the innovation in the design category. The sustainable approach to this project included using the existing base infrastructure services systems and building structure.
Sustainable design features of the renovated building design included:
- Site Selection -- The subject property avoided ecologically sensitive sites as a previously developed site in a highly dense urban area connected to a variety of diverse uses.
- Alternative Transportation -- A shared-use parking garage that includes preferred parking for 89 energy-efficient vehicles. Carpooling is encouraged throughout the site and is given preferential parking locations.
- Heat Island Effect -- The installation of a high albedo TPO roof contributed to a solar reflective index (SRI) of over 90. In addition, the entire parking area is under cover.
Water Efficiency Water
- Efficient Landscaping -- Irrigation for landscape material is connected to the existing non-potable reclaimed water system.
- Water Use Reduction -- The project reduced potable water use by more than 40% with the implementation of metered faucets and high-efficient, low-flow fixtures.
Energy and Atmosphere
- The county had a goal of saving at least 14% on energy bills when compared to ASHRAE 90.1-2007, using the Building Performance Rating Method, also known as Appendix G and Energy Cost Budget Method as described in ASHRAE 90.1-2007, Chapter 11. Energy savings were achieved by optimizing key factors such as building envelope, HVAC systems and lighting. The building systems were also designed and installed to allow part load operation without sacrificing operating efficiency. Optimum start/stop programming was incorporated to enable and disable HVAC, domestic hot water and lighting systems in order to adequately cool down and warm up building.
- Green Power --The county purchased renewable energy certificates to reduce environmental and economic impacts associated with fossil fuel and energy use.
Materials & Resources
- Construction Waste Management -- The project diverted 97% of waste debris from the landfill during the construction process. The materials recovered from the construction and demolition debris were recycled or reused into project products. Those materials included concrete, wood, cardboard and metal. In order to keep proper tracking of the diverted materials, the contractor provided monthly statements to the owner and LEED consultant.
- Recycled Content -- The project used more than 20% of recycled content materials. Some of the recycled content materials used included metal doors, door frames, door hardware, sheetrock, Styrofoam insulation, fiberglass insulation, steel framing, masonry blocks, aluminum railings and concrete mix.
- Regional Materials -- The project used more than 10% of regional materials. This was a major accomplishment for the contractor due to the South Florida location. The regional materials included concrete mix, structural rebar, masonry block and glass.
Indoor Environmental Quality
- Construction Indoor Air Quality During Construction -- The contractor established clear guidelines from the beginning of the project in order to minimize pollutants during construction. Some of the measures taken included the following:
~ HVAC equipment was protected to avoid pollutants sticking into porous materials.
~ The return side of HVAC was shut down during heavy construction activities.
~ MERV 8 filters were provided in areas where major dust loading was expected to impact HVAC.
~ Smoking was prohibited during construction in enclosed areas, and exterior smoking areas were identified.
~ Dust curtains or plastic sheets were utilized to prevent contamination of clean areas.
~ Continuous cleaning activities.
~ Drywall, wood products, insulation and other materials were protected from water when stored on-site.
Low Emitting Materials -- Adhesives and Sealants; Paints and Coatings; Flooring Systems; Composite Wood
- Low-emitting products were used on the project to reduce indoor pollutants. Adhesives and sealants; paints and coatings with Low-VOC content were installed and documented throughout the project.
- All composite wood and agrifiber products, particularly the lockers in the locker room, had no added urea formaldehyde (NAUF).
- Chain of Custody (COC) certificates were documented accordingly.
Innovation In Design
- Green Cleaning -- The use of environmentally friendly cleaning products was integrated into the facility maintenance of the project.
- Integrated Pest Management -- The use of environmentally friendly pest control products was integrated into the maintenance of the project.