Training Facility Renovation
IMEG provided design for the renovation of Building 2945(B2945), constructed in 1966-1967 and part of a three-
building compound arranged around a central parking lot. All three buildings were originally dormitories but have been converted to other uses. B2945 is a three-story training facility with administrative support areas for staff. The building was previously renovated, but improvements were needed to interior and exterior systems for efficiency, cost savings, and to meet code and UFC requirements. During the concept phase, NAVFAC directed the design team to develop three distinct construction packages with cost estimates for bidding. The three packages were completed concurrently, with slightly staggered completion dates.
Package A: Elevator Lobby Addition
The addition of an elevator was needed to meet Architectural Barrier Act Accessibility Standards (ABAAS). The design included an in-ground direct plunger hydraulic passenger elevator accommodating a stretcher in compliance with Interim Technical Guidance 2013-01 NAVFAC Elevator Design Guide dated August 1, 2013. A supporting equipment room and entrance lobby were added. The exterior walls, windows, and roof of the 2,250-sf addition were designed to match the existing structure.
Package B: HVAC, Interior Renovations, and Fire Alarm/Mass Notification System
The HVAC system replacement scope included removal and replacement of all existing interior and exterior HVAC equipment. The new system includes water-source heat pumps, dedicated outside air units providing pre-conditioned building ventilation, a condensing boiler, and a closed-circuit fluid cooler. DDC controls and air distribution ductwork were provided. All equipment complies with ASHRAE 90.1 minimum efficiency requirements. Third-party commissioning and testing and balancing were required. A life cycle cost analysis was completed for three alternative systems.
The existing fire alarm system was replaced with a new integrated Fire Alarm and Mass Notification System in compliance with UFC 3-600-01 Fire Protection Engineering for Facilities. The fire sprinkler system was modified in the renovation areas to accommodate the architectural changes.
Package C: Window, Door, and Roof Replacement
The building envelope needed significant improvements to increase life expectancy, reduce maintenance, and blend with the surrounding buildings. The existing roof and waterproofing membrane were removed, and roof insulation was upgraded to meet UFC and ASHRAE minimum requirements of R-38. Penetrations were sealed, and new gutters and downspouts were provided. A new retrofit system of cold-formed light gauge metal framing designed was specified. Over 150 doors and windows were replaced. New glazing is impact-resistant with a solar heat gain coefficient to meet current ASHRAE 90.1 and 189.1 requirements. The roof, window, and door replacements comply with wind and seismic loads in compliance with ASCE 7-10, Minimum Design Loads for Buildings and Other Structures. The exterior of B2945 was painted to improve the overall appearance.
The project included the following elements as appropriate for each design package: Hazardous materials survey; Underground utility investigation; AT/FP analysis and compliance with UFC 4-010-01 DoD Minimum Antiterrorism Standard for Buildings; Conformance with UFC 1-200-02 High Performance and Sustainable Building Requirements.