On Thursday, September 5th 6-8 am to support the vertical expansion project ,adjustments need to be made to the exhaust system serving the north(vertical expansion area) labs on floors 7-11 and the supply air handling system for the 7th floor BTCF during the above noted time. During the outage occupants should expect to a possible rise in temperature of their spaces and should not use any exhausted hoods till the outage is completed.