Fire Rated Door Design Difference

- May 08, 2020-

Fire rated door has different design for different building types. 

In the construction of fire rated doors design, should be in accordance with the nature of the building, type, in strict accordance with fire technical specifications, reasonable fire rated doors, and not arbitrarily reduce the fire rated door grades. 

Grade 0: no defined corrosion resistance

Grade 1 or A: mild resistance

Grade 2 or C: moderate resistance

Grade 3: high resistance

Grade 4: very high resistance