EWPAA Structural Plywood and LVL Design Manual - Engineered ...

ISO 9705 AND AS/NZS 3837These tests apply specifically to wall and ceiling linings and are summarised in FIGURE 16.2. The mainoutcome of the tests is to assign a Material Group Number. Once tested the material will fall into 1 of 4groups as listed in TABLE 16.2. The tests also assign smoke production numbers which are ofconsequence when no sprinkler system has been installed.Material GroupNumberGroup 1Group 2Group 3Group 4DescriptionMaterials that do not reach flashover following exposure to 300kW for 600 seconds, afternot reaching flashover when exposed to 100kW for 600 seconds.Materials that do reach flashover after exposure to 300kW for 600 seconds, after notreaching flashover when exposed to 100kW for 600 seconds.Materials that reach flashover in more than 120 seconds but less than 600 seconds afterexposure to 100kW.Materials that reach flashover in less than 120 seconds after exposure to 100kW.TABLE 16.2: Material Group NumbersGroup 1 materials are suitable for the most stringent fire hazard requirements whilst Group 4 do notmeet the requirements for lining materials for walls and ceilings.TABLE 16.3 of BCA Specification C1.10(a) gives Deemed-to-Satisfy Provision for wall and ceiling liningmaterials, in terms of Material Group Numbers, for sprinklered and unsprinklered buildings.Deemed-to-SatisfyFire-isolated Public corridors Specific areas Other areasClass ofexitsWall Ceiling Wall Ceilingbuilding Wall/ceilingWall/ceilingClass 2 or 3, Excluding accommodation for the aged, people with disabilities, and childrenUnsprinkleredSprinklered111,21,2,31,21,2,31,2,31,2,31,2,31,2,3Class 3 or 9a, Accommodation for the aged, people with disabilities, children and health-care buildings1,2,31,2,3Unsprinklered1Sprinklered1Class 5,6,7,8 or 9b schools11,211,21,21,2,31,21,2,31,2,31,2,3Unsprinklered1Sprinklered1Class 9b other than schools1,21,2,31,21,2,31,2,31,2,31,21,2,31,2,31,2,3UnsprinkleredSprinkleredClass 9c1111,211,21,21,2,31,21,2,31,2,31,2,3Sprinklered 1 1,2 1,2 1,2,3 1,2,3 1,2,3For the purpose of this Table:1. “Sprinklered” means a building fitted with a sprinkler system complying with Specification E1.5.2. “Specific areas” means within:(a) for Class 2 and 3 buildings, a sole-occupancy unit.(b) for Class 5 buildings, open plan offices with a minimum floor dimension/floor to ceiling height ratio >5.(c) for Class 6 buildings, shops or other building with a minimum floor dimension/floor to ceiling height ratio >5.(d) for Class 9a health-care buildings, patient care areas.(e) for Class 9b theatres and halls, etc. an auditorium.(f) for Class 9b schools, a classroom(g) for Class 9c aged care buildings, resident use areas.TABLE 16.3: Wall and Ceiling Lining Materials (Material Groups Permitted)241