Products don't make buildings perform — assemblies do. An Envelope System is our documentation of one complete assembly: the layers in order, the job each layer does, the components that serve it from our catalog, and the sequencing notes that make it buildable.

We maintain seven systems spanning the work we see most: two retrofit assemblies, three new-build framing assemblies, and two commercial-scale assemblies. Each is written as general, principle-based guidance — a starting point for your design professional of record, not a substitute for project engineering. Use them to understand the logic, then bring your actual section to the Spec Support Desk.