The Distinction Between Active And Passive Fireplace Protection Techniques
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Has an efficient top of not more than 25 m and the ceiling immediately beneath the roof has a resistance to the incipient unfold of fire to the roof house of not less than 60 minutes. A roof needn't adjust to Desk three if its masking is non-combustible and the building— The superimposed roof and any construction between it and the concrete slab roof are non-combustible all through