All-glass reflective exteriors have been the hallmark of the four-story medical office buildings at 11160 and 11180 E. Warner Avenue in Fountain Valley, California, since their construction in the mid-1980s. Over the years, however, the glazing had started to fail and the window mullions had seriously deteriorated. After initially considering replacing the glazing and mullions -- a costly upgrade that would also disrupt doctors and patients -- Asset Managers Teri Wilson and Mike Adams called on Kyle Korte at Foresight Services, Inc., in St. Louis, Missouri, for professional assistance in finding the best solution for improving the buildings' aesthetics. "The cost to replace the glazing was approximately seven times more than window tinting. Window film was seen as a more cost-effective solution than new glazing, even though the warranty period for glazing is years longer," Kyle explained. Metropolitan West, a leading provider and installer of solar window films, was responsible for project management. "When I reviewed the RFP referred to me by Solar Gard, I immediately thought of Sentinel Plus™ Outside Weatherable Window Film (OSW) for this project," said Kelly Taylor, Principal at Metropolitan West. "For the most part, installing Sentinel Plus on the exterior meant business as usual for those on the inside."