This month’s B2B focuses on the conversion of an existing 1 million-square-foot commercial office building’s record computer-aided drawings (CAD) to building information modeling (BIM) drawings. 

I have always enjoyed building systems retro-commissioning because it’s like a super-sized lab experiment. 

When I started out at an HVAC consulting engineering firm back in the 1960s, our services were primarily focused on hospital design engineering. Back then, steam system engineering was standard for those building applications.