Offering a different texture than traditional mineral fiber tiles, the Arena Mineral Fiber Ceiling Tiles elevates your ceiling above the standard look. Tegular edged tiles protrude below the grid system when installed. The tegular effect is appealing to some people and can break up the flat look of a ceiling. One thing to consider when choosing a tegular edge tile is that trimming the tiles to fit into smaller areas or border spaces requires an additional level of attention and a slight increase of installation difficulty. The Arena Mineral Fiber Ceiling Tile has a class A fire rated as well as a noise reduction (NRC) rating of .40. The tiles advanced materials and construction meet ASTM D5116 for the highest air quality standards. The 1/2" thickness facilitates insulation batting on top of the tile without sagging.