| GA 3.5.2 | NON-LOAD BEARING EXTERIOR WALLS | |
|---|---|---|
| GUIDELINES ANNEX - GA_3.5.2 – Revisions_2015 | ||
| Item No. | Provisions | Notes |
| 1.0 | General. Requirements of the Exterior Walls shall be as follows: | |
| 1.1 | Any exterior wall of a building or a separated part of a building shall be: | |
| 1.1.1 | Constructed wholly of non-combustible materials apart from any external finishes which complies with Chapter 37 of the latest edition of NFPA 5000 or any internal lining/finishes which complies with chapter 10 of NFPA 5000, and | |
| 1.1.2 | So constructed as to attain the fire resistance based on Table 7.2.1.1 and Table 7.3.2.1 of the latest edition of NFPA 5000 whichever is greater. | |
| 1.2 | Any beam or column forming part of an exterior wall and any structure carrying an exterior wall which is required to be constructed of non-combustible material, shall comply with the provisions of the above-mentioned sub-clause (1.1). | |
| 2.0 | Exceptions. | |
| 2.1 | The above-mentioned requirements for non-combustibility of exterior walls shall not apply to the external walls of a building or separated part of a building containing one-and-two family dwelling if that wall is: | |
| 2.1.1 | Situated 3m or more from the relevant boundary, and | |
| 2.1.2 | Not exceeding 8m in height, and | |
| 2.1.3 | Non-load bearing wall. | |
| 2.2 | The proposed exterior wall shall be tested I accordance with the latest edition of NFPA 285. | |
| 2.3 | The flame spread and smoke development of these exterior walls shall also have Class A rating in accordance with the latest edition of NFPA 255 based on the maximum intended use. | |
| 2.4 | Fire retardant-treated wood shall be permitted in exterior non-load bearing wall when such walls are not required to have fire resistance rating. | |
| 2.5 | Use of plastics, inclusive of foam plastic insulation, shall be in accordance with Chapter 48 of the latest edition of NFPA 5000. | |