Nominal fire resistance limit of external wall structures in fire safety in Vietnam
Based on Table F.3, Section F.1, Appendix F of the National Technical Regulation on Fire Safety for Buildings and Constructions issued together with Circular 02/2021/TT-BXD, the regulation on the nominal fire resistance limit of external wall structures is as follows:
Table F.3 - External Walls (non-load-bearing)
| Structure and Materials | Fire Resistance Limit |
| (1) | (2) |
| 1. Walls with a steel skeleton frame, the outer layer made of non-combustible material sheets, and the inner layer is: | |
| a) 12.5 mm thick cement sand or gypsum plaster on steel lath | EI 240 |
| b) Two 9.5 mm thick panels | EI 30 |
| c) 9.5 mm thick panel with 12.5 mm thick gypsum plaster | EI 30 |
| d) 12.5 mm thick panel with 5 mm thick gypsum plaster | EI 30 |
| e) 50 mm thick rice husk board | EI 30 |
| f) 50 mm thick rice husk board with 5 mm thick gypsum plaster | EI 120 |
| 2. Walls with a wooden skeleton frame, the outer layer is 10 mm thick cement sand or cement-lime ^1)^ and the inner layer is: | |
| a) 16 mm thick gypsum plaster on steel lath | EI 60 |
Table F.3 (conclusion)
| (1) | (2) |
| b) 9.5 mm thick panel with 12.5 mm thick gypsum plaster | EI 60 |
| c) 12.5 mm thick panel with 5 mm thick gypsum plaster | EI 60 |
| d) 50 mm thick rice husk board | EI 60 |
| e) Autoclaved aerated concrete block with a thickness of: | EI 180 |
| 50 mm | |
| 62 mm | EI 240 |
| 75 mm | EI 240 |
| 100 mm | EI 240 |
| 3. Walls with a wooden skeleton frame, the outer layer is 100 mm thick brick or blocks made from fired clay, concrete, the inner layer with 16 mm thick gypsum plaster on steel lath | EI 240 |
| 4. Walls with a wooden skeleton frame, the outer layer is edge-overlapping panels or 9.5 mm thick plywood ^1^^)^ and the inner layer is: | |
| a) 16 mm thick gypsum plaster on steel lath | EI 30 |
| b) 9.5 mm thick panel with 12.5 mm thick gypsum plaster | EI 30 |
| c) 12.5 mm thick panel with 5 mm thick gypsum plaster | EI 30 |
| d) 50 mm thick rice husk board | EI 30 |
| e) Autoclaved aerated concrete block with a thickness of: | |
| 50 mm | EI 180 |
| 62 mm | EI 240 |
| 75 mm | EI 240 |
| 100 mm | EI 240 |
| ^1)^ The presence of membranes that can form combustible vapors within the thickness of these structures should not contribute to their fire resistance. | |
| NOTE: Principles for determining the fire resistance limits of structural elements see 2.3.2. |
Sincerely!
Guidelines on criteria for identifying temporary and dilapidated houses in Vietnam in 2025
What is the template of Application for a construction permit for detached house in Vietnam in 2025?
What is the template of the Application for reissue of construction permit for detached house in 2025 in Vietnam?
What is the template of the Report for appraising the feasibility study for construction investment in accordance with Decree 175 in Vietnam?
Promulgation of Circular 11/2024/TT-BXD on codes, title standards; standards and conditions for promotion consideration of public employees in the Construction sector in Vietnam
Will the Urban and Rural Planning Law 2024 in Vietnam be effective from July 1, 2025?
From January 1, 2025, will the district-level town Phong Dien beestablished under Hue city?
From January 1, 2025, is it correct that Hue will become a central-affiliated city of Vietnam?
Where is Ly Son Island? What are detailed regulations on striving for Ly Son island district to become a center by 2030?
Promulgation of Circular 94/2024/TT-BQP providing detailed provisions on certain articles of the Law on Housing in the People's Army of Vietnam
