According to the Section 22 - Civil Engineering and Building Works: Cladding andRoofing Systems according to noise protection requirements and the followingperformance inspection, and maintenance conditions:A Performance life of 40 years minimumA minimum period of first maintenance of25 yearsA 5 yearly cycle of inspections with maintenance generally limited to repair ofaccidental damages.2. According to the PVC/ PVC-MS proposal, three option (see attached) to be given for roofand wall system of Turbine and Main Control building steel structure as follows:Option - I: As engineering design ofVung Ang 1 projectOption - 2: As proposed by Dong Anh companyOption - 3 Combined of: The technical requirements in section 22 of EPC Contract,Engineering design of SDC, Engineering design of Vung Ang 1 Project.3. As the design contractor, TB2PP requires PVC/SDC to have comment on abovementioned options.Hereby, TB2PP informs to PEB to acknowledge and implement.
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