Project details

Fabric name: Regatta Firesist Blue
Fabric producer: Glen Raven Custom Fabrics LLC
Fabric supplier: Trivantage LLC
Engineer: Gary Foreman
Design: Lawrence Fabric & Metal Structures, Inc.
Fabrication: Lawrence Fabric & Metal Structures, Inc.
Project manager: Mike Bowman
Installation: Lawrence Fabric & Metal Structures, Inc.
Location: St Louis, Missouri

Please describe the project specifications.
We fabricated and installed a custom triangular plenum (an enclosed space used for airflow) for a medical center building on the exterior corner of the 4th – 7th floor. The temporary air intake ductwork will facilitate drawing cleaner air from above the building due to heavy ground level construction contaminating the air on the lower levels of the work site. The structure is made in sections with 3” square aluminum tubing with necessary trussing. Aluminum tube frame with top and bottom steel inbeds in wall for support to I Beams. The outside panels are Regatta Firesist blue fabric to match their corporate colors.

What was the purpose of this project? What did the client request?
The client requested a temporary solution to draw cleaner air into the medical facility from above the roofline due to heavy construction taking place at ground level.

What is unique or complex about the project?
Creating a 45’ tall air plenum and installing this size structure up 4 stories on the exterior of the medical building was complex in itself. In addition, we had to be very careful to follow strict hospital guidelines such as controlling noise onsite; building codes required meeting mechanical code specifications which limited fabric selection because of smoke development value and sharing tower crane time with other trades.

What were the results of the project?
The client is very satisfied with the design, fabrication and installation of the plenum for his medical facility. It is of utmost importance to provide fresh, clean air to the patients, visitors and medical staff during new construction and renovations.

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