CHI Health Immanuel Medical Center Family Clinic rendering. Photo courtesy of Hoefer Welker Prefab Lessons Learned AUGUST / 2024 This general contractor decided to use prefabricated components for both interior and exterior walls in a new health clinic. by Larry Bernstein • Because this was a design-build project, the contractor was able to optimize it for a full-panel approach that included interior as well as exterior walls. • Exterior panels reduced shell framing time from 28 days to five days, while the interior panels meant that drywall could be hung 30% earlier. There was also a $250,000 material savings. • The contractor stresses the need to familiarize subs with the panel approach. 38