The panel technology is the same. The specification, documentation, code path, and consulting scope are substantially different.
Code and engineering
Residential SIP construction under the IRC includes prescriptive provisions that allow straightforward projects to be permitted without stamped engineering. Commercial SIP construction under the IBC has no prescriptive provisions — stamped structural engineering is always required. The engineering scope for commercial projects is broader, the connection design is more demanding, and the fire rating requirements are more extensive.
Energy code
Residential energy compliance is governed by the IECC; commercial compliance by ASHRAE 90.1. The minimum R-value requirements differ between the two standards, and in some climate zones ASHRAE 90.1 imposes higher minimums than IECC for equivalent assembly types.
Procurement
Residential SIP procurement is relatively simple. Commercial procurement — particularly for government, healthcare, and institutional clients — involves procurement documentation, manufacturer qualification records, testing certifications, and compliance verification that do not exist in residential work.
Application requirements
Commercial applications introduce requirements that don’t exist in residential construction: ballistic ratings, nuclear quality assurance, cold chain performance documentation, clean room compatibility, and government compliance documentation. These requirements shape the panel specification and the consulting scope for commercial projects.
What stays the same
The fundamental consulting relationship — one consultant, one project, independent technical guidance on panel selection and specification — is the same. The goal is also the same: the right panel, the right spec, the right installation, the right outcome. The scope is larger; the principle is identical.
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