Traditional Culture Encyclopedia - Traditional culture - How to use the fire protection package of the air duct?
How to use the fire protection package of the air duct?
Air duct+rock wool+fireproof board can be used to increase the fireproof package of air duct. According to relevant data, the air duct+rock wool+fireproof board needs 8-9mm fireproof air duct board for cladding, and Utterson rock wool is filled in the middle, so that the fire resistance limit of ventilation air duct can be increased to 1-3 hours. Fire smoke exhaust pipe is wrapped with glass wool. Glass wool is a kind of glass fiber inorganic material. There are two kinds of glass wool for smoke control and exhaust pipes: glass wool board and glass wool felt.
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