← All posts
FACADE ENGINEERING
What does a facade engineer actually do?
Aaron Kostrzewa, PE

People in curtainwall have a hard time explaining what we do for work. “I engineer the outside of buildings” is close, but it leaves out most of what is going on behind the glass.

Watch a timelapse of unitized curtainwall going up on a high-rise. Panels show up on trucks as finished units - glass, framing, gaskets, and insulation already assembled - get craned up, and hook onto the structure one floor at a time. That only works because somebody engineered every step of it.

The job breaks down into a few things:

Environmental loads. Wind pressure (often from a wind tunnel study on taller buildings), seismic drift, thermal movement, and snow or maintenance loads. Every mullion, panel, and lite of glass has to carry its share.
Maintenance loads. Window-washing rigs, tie-backs, and reglazing load the facade in ways the weather never will.
Anchorage. Every panel hangs off the structure at a few discrete points. Getting those connections right, and tolerant of the building’s actual as-built geometry, is most of the job.
Movement. Buildings drift in wind, shorten under load, and grow in the heat. The facade has to go along for the ride without leaking, binding, or cracking glass.

On top of that is the paperwork that keeps construction moving: calculations, shop drawings, submittal reviews, field fixes, and sealed record documents. On a lot of projects KEG is the facade engineer of record, meaning the engineer in responsible charge of the cladding’s structural integrity.

Short version: a facade engineer makes sure the skin of the building holds up to everything the weather and the maintenance crew throw at it, and that it is properly attached to the structure behind it. More on our facade services here.