Roof Top Units (RTUs)

9 May 2025-Fri.
Installation Artist: Randolph Bradley

This kinetic installation lifts Roof Top Units (RTUs) for heating and air conditioning to new heights in downtown St. Louis.

0-In the beginning Webb Engineering Services (WES) of St. Louis created Sheet M-1 HVAC Floor & Roof Plan

A-American Boiler & Mechanical Delivers the Supply and Return Ducting

B-Mike Ross of Kenrick Design Construction installs supply and return ducts before the Roof Top Units (RTUs) are lowered into place atop the curbs

C-Cleaning the curbs before applying insulation

D-The mobile crane arrives early in the morning

E-Randolph Bradley repositions the Trane RTUs for the mobile crane

F-The TRANE six ton Roof Top Unit (RTU) emerges from the manufactory

G-Investigating Unexpected Dents in an RTU demonstrates that there is always something

H-Hoisting the Trane RTU Rooftop

I-A roof with a view – of the mobile crane hoisting a Trane RTU; note the Saint Louis arch in the upper lefthand corner

J-Lowering the TRANE 5 ton RTU in place onto the curb

K-Removing the rigging from the RTU

L-Looking north at installed RTUs with the former St Louis Gateway Sports headquarters in the background

M-Lowering the curb covers to complete the job at the end of the day

N-Randolph Bradley lowers the boom on the project (9MAY25)

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