Stabling roof is composed of steel columns and roof structure. Because it does not have walls or chamber compartment, stabling roof is not classfied as building or parts of building that is separated by fire walls as indicated in the section 2.6.1 of QCVN 06 :2010/BXD. Thus, fire resistance grade of building, structural fire hazard grade and usage fire hazard group defined in the QCVN06 :2010/BXD do not apply. Thus, no fire proofing finish is required for the Stabling roof.If to take further step to check requirement of Stabling roof, it is to be noted that code does not define requirement for such structurenor railway facilities. Due to unavailability of reference in the Vietnamese code and such as Decree 79/2014/ND-CP, 31st July 2014, article 11 , only interpretation is possible based on structures which are similar. The closest reference would defining stabling roof as structure in the yard to accomodate vehicles in the QCVN 000 0003:2012/BXD. In this case, the structure is defined as transporstation infrastructure (as Appendix A.4.9.1, QCVN 03 :2012/BXD) rather than building which also does not require fire proof finishing. Another reference would be Japanese code.In the Japanese code, there is also no clear requirement for structures similar to Stabling roof and many examples exist which do not have fire proof finishing. Thus, the conclusion is the same.
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