Wood-insulated panels (WIPs) combine CLT with rigid exterior wood fiber insulation (WFI) to create a consistent, uniform panel with continuous exterior insulation. These panels can be used to fabricate shell systems, delivering a structural/thermal/moisture enclosure solution for use in new construction and retrofits, and the wood cut-outs from these panels go into the WFI "hopper" in a cradle-to-cradle cycle. This session will present the results from OPAL Build's pilot project, a 1000sf schoolhouse in Belfast, Maine. Attendees will gain real-world insight into the build process and thermal/moisture performance of CLT + WFI wall and roof solutions based on the 100+ sensors we installed in the roofs and walls. We will share lessons learned, details, and hard data.