A rapid venting: venting panels are lightweight brittle material, very short period of time when the case of an explosion in the vent loose, effectively reducing additive effect explosive, to provide protection for the personal and property safety. 2 easy to form secondary damage when venting: venting plate when relief was massive and powder form, no sharp edges and corners, very light weight, low density, thermal insulation for lightweight materials, while not easy to form a secondary relief injury. 3 strength Good: In the project design, it will take full account of the requirements of the external walls of pressure and wall height and other factors purlin, keel and venting board arrangement, to ensure the stability of the wall while achieving relief function. 4 Durability: venting board weather is good, under normal conditions of use, can achieve the requirements for 50 years. 5 is superior fire: fire rating according to the building, venting wall patience limit of up to four hours.