Special Construction (Div 13)

Facility name: East Florida Division Office

Lesson Learned/Best Practice

At HCA Davie, the hospital project was a 4 level concrete frame, and the team could not start the exterior walls, interior framing, or overhead MEP until the reshores were removed and the top concrete deck was poured. B&G decided to bring in BLOX components as soon as reshores were removed and layout was complete, creating a unique advantage in sequencing and an early release of subsequent trades inside the hospital. Typically, BLOX components are not installed until the building is mostly dry and the envelope is closed in, so the main risk in bringing in the units this early was keeping the units protected from the elements with no skin on the building. Utilizing additional boat wrap and leaving the bottom 1’ off of the headwalls helped keep the units dry while allowing the early delivery to streamline the prefabricated interior components’ delivery and installation.

Suggested Actions for Future Projects

–          This approach proved to be successful for the team, and is being utilized on Lawnwood as well.

–          It does require some focused attention and extra work to keep the units dry.

–          Two steps the team took were: 1) Re-boat wrapped some of the bathrooms to keep them dry until we set them when the exterior was complete. 2) Leaving the 1’ of drywall off the bottom of the headwalls (see other lessons learned for this)

Facility name: East Florida Division Office

Lesson Learned/Best Practice

Even though the hospital project had 3 tower cranes, dedicating a crane full time for a day for BLOX deliveries was not optimal. The team elected to start the first BLOX delivery after 3:30pm, when normal production work for the day was wrapping up. This would allow for uninterrupted use of a tower crane and ensured less overall traffic on the floor. This helped to lower congestion on the jobsite during the day and created a calm environment to move multiple 3500lb prefabricated units onto the floors of the hospital. The team saw the multiple benefits of delivering the BLOX units after hours and continued this practice for the rest of the job with great success.

Suggested Actions for Future Projects

Consider bringing in prefab components after normal working hours, to insure most efficient install and minimal congestion. This is especially true when there is heavy use of the project cranes throughout the days.

Facility name: Lake Nona Hospital

Lesson Learned/Best Practice

A scope gap was identified where labor was not bought out to collect, palletize and load BLOX headwall racks, panelized bathroom racks, rigging gear and mover jacks onto long haul shipping trailers contracted directly with BLOX. 

Ensure BLOX install foreman/subcontractor leadership responsible for loading BLOX hardware/equipment discussed project strategy at BLOX kickoff meeting on site to avoid confusion when BLOX install is complete in an area, phase, floor or project and hardware needs to be returned to BLOX facility in AL.

Ensure the specific phasing of BLOX delivery AND installation (if those two activities do not run finish-to-start) is reviewed in detail during the BLOX pre-mobilization meeting held on site.

Suggested Actions for Future Projects

Update BLOX install playbook to identify this scope responsibility and assign it to the GC to buyout with BLOX component installation.

On future projects, the BLOX install playbook should clearly identify that scope responsibility and the GC should ensure that labor responsibility is included with the installation of the BLOX components.