International Barrier Achieves Growing Sales in the Mid-Atlantic as Centex Homes Expands its Use of Blazeguard Fire Resistant Wood Panels WATKINS, Minn. and VANCOUVER, June 14, 2004 (PRIMEZONE) -- International Barrier Technology Inc. ("Barrier") (OTCBB:IBTGF) TSX Venture Exchange:IBH), a manufacturer of proprietary fire resistant...