In this episode, Mike and Devon assemble a team of engineers, project managers, and draftsmen, to discuss an issue that started back in the 1960s.

You may know it as window track, serrated beams, or zipper-track, but in this episode we refer to it as an arch beam. We discuss what arch beams are, when and why they were made, why they’re an issue of concern now, and a whole lot more. Thanks for listening!

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