All, On Friday 4/20/18 we will be receiving new roll-to-roll equipment in multiple sections that will be installed in the cleanroom. We therefore need to schedule two closures as described below: 1. At 8:00 AM on Friday 4/20, we will be closing the west end of the tour aisle, which will remain closed until the end of the day on Monday 4/23. The freight elevator will also be unavailable during that time, except to move chemicals from storage to the points of use at certain times of day. 2. At 8:00 AM on Monday 4/23, we will be closing the entire cleanroom to research while components of the new equipment are moved into place by a professional rigging company. As stated above, the west end of the tour aisle will also remain closed. It is our hope that the moving can be completed in one day, but if not the closure could extend into Tuesday. If that becomes necessary, notification will be sent out at the appropriate time. We apologize for any inconvenience, but several pieces of the new equipment exceed 6,000 lbs. in weight, therefore these closures are necessary for safety reasons. Please plan your research and any tours that might be coming up accordingly. Regards, Jeff Kuhn Facility Engineer Birck Nanotechnology Center 1205 West State St. West Lafayette, IN 47906 Ph: 765-496-8329 kuhn1@purdue.edu<mailto:kuhn1@purdue.edu>