Tile system for ceiling and wall

A tile comprising a main body having an exposed side and a concealed side, the exposed side defining a main surface, the concealed side defining a rear plane, and side surfaces between the exposed side and the concealed side of the main body, the side surfaces having tongue-and-groove arrangements in the rear plane, wherein the main body is made of at least one layer of acoustic felt, the at least one layer of acoustic felt defining at least one of the exposed side or the concealed side, the at least one layer of acoustic felt having on its exposed side at least one compressed portion, with at least one embossed portion projecting outwardly in the exposed side relative the at least one compressed portion, the at least one embossed portion having a greater thickness than the at least one embossed portion.