【Standard Communication Version--One Question per Day】20170720
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The Code for Fire Protection Design of Buildings stipulates that for the walkable flat roofs of factories (warehouses) with fire resistance ratings of Class I and Class II, the fire resistance limit of their roof panels shall be no less than ___ hours and ___ hours respectively. Answer: For the walkable flat roofs of factories (warehouses) with fire resistance ratings of Class I and Class II, the fire resistance limit of their roof panels should be no less than 1.50 hours and 1.00 hour respectively.
1.50h 1.00h
The Code for Fire Protection Design of Buildings stipulates that for the walkable flat roofs of factories (warehouses) with fire resistance ratings of Class I and Class II, the fire resistance limit of their roof panels shall be no less than _1.50__ hours and _1.00__ hours respectively.