Tunnel fireproof board, also known as calcium silicate board, is a high-performance building material for walls. It is a lightweight board formed by the high-pressure compaction of raw materials like silica, calcium, pulp, and fibers. The wall made of tunnel fireproof board is sturdy and not easily damaged or cracked. It has a low thermal conductivity and excellent thermal insulation properties, outperforming common brick walls. Tunnel fireproof board has a wide range of applications, primarily used in interior partition walls in construction. It can also serve as raw material for thermal insulation sandwich panels and lightweight partition boards.

Common specifications for tunnel fireboards are 2440*1220mm, with thicknesses of 6mm, 8mm, 10mm, 12mm, 15mm, 20mm, and 24mm. The price of tunnel fireboards is typically calculated per square meter, varying with thickness, resulting in price ranges from 9 yuan/square meter to 41 yuan/square meter.