Explosion relief roof: a lightweight pressure relief wall usually used in industrial and civil factory boiler rooms, dangerous goods warehouses, etc. (the weight does not exceed 60KG/㎡, usually made of single-layer panels, sandwich panels, single-layer panels, etc. There are three types of roof panels (board + insulation, taking into account negative wind pressure), and the explosion pressure value is usually 60-90PSF. When an explosion or combustion occurs in a building, the gas pressure in the room rises sharply. The device opens the wall and releases pressure to contain an explosion or minimize damage. Explosion venting accessories usually consist of explosion venting bolts and traction nooses. The role of the explosion venting bolts is to quantify the explosion pressure value and dynamically control the release pressure; the role of the noose is to contain the splashing of the opened wall and injure people and objects