Our GypSorb Stratum slotted was used on both ceilings and walls for this project at Bellevue High School. The photos show how GypSorb can be used over large wall areas and helps with sound reverberation in large common areas. NAC Architecture received the 2014 Civic Design Citation from AIA Washington Council and the 2014 Bronze Award for Excellence in Masonry Design K12 from the Masonry Institute of Washington.