Walls and Ceilings News GA Relocates November 1, 2008 The Gypsum Association has announced that it has moved out of its Washington, D.C.-based office into Maryland. The following address became effective October 6.6525 Belcrest RoadSuite 480Hyattsville, MD 20782(301) 277-8686(301) 277-8747 Fax Share This Story You must login or register in order to post a comment. Report Abusive Comment Thank you for helping us to improve our forums. Is this comment offensive? Please tell us why.