Technical articles on building maintenance units, façade access, and fall-protection engineering — inspection, failure modes, acceptance testing, design, investigation, procurement, and retrofit.
01
Who is responsible for BMU inspection and certification, what OSHA 1910.66 and ASME A120.1 actually require, and what the annual certificate does not tell the building owner.
02
How building maintenance units fail: the recurring failure categories in BMU drivetrains, wire rope, structural interfaces, and safety devices, from a field engineer’s perspective.
03
What a factory acceptance test (FAT) and site acceptance test (SAT) verify on a building maintenance unit, what each does not verify, and what an owner should hold from both.
04
Which façade access and fall-protection decisions must be made in early design — geometry, structural provisions, rescue feasibility — and why they harden as the project advances.
05
What an engineering investigation of a suspended access or BMU accident examines — design geometry, acceptance records, inspection scope, configuration — and how it informs standard-of-care questions.
06
Buying a building maintenance unit from an overseas manufacturer: the distance, delivery-chain, documentation, and payment-structure questions that protect the owner between order and acceptance.
07
Beneficial use before acceptance is complete and construction use after SAT: separating interim use from acceptance, the records each custody transition needs, and what the evidence can establish about early-service conditions.
08
Retrofit or replace an aging BMU or permanent access system: why the engineering case comes before procurement, the five drivers of the decision, owner-direct procurement, and the acceptance record the retrofit should leave behind.