Magnesium Oxide Board Corporation CodeMark Certificate of Conformity (CMA-CM40009 (Rev2)) Building Code of Australia Classification Summary

Transcription

1 Magnesium Oxide Board Corporation CodeMark Certificate of Conformity (CMA-CM40009 (Rev2)) Building Code of Australia Classification Summary BCA Volume : Section C Fire Resistance (inclusive of all parts C1.1 to C1.7) 1.8 Light Weight Construction including walls, ceilings and floors, C1.10 Fire Hazard, including NSW State Variation, and C1.12 Non- Combustible materials. Load bearing timber frame 60/60/60 utilising 10mm ResCom TM sheathing. Load bearing metal frame 90/90/90 utilising 10mm ResCom TM sheathing, 120/120/120 utilising 12mm ResCom TM sheathing and 120/120/120 (18mm) ResCom TM flooring. Non-loadbearing walls and ceiling linings to FRL: -/20/20 (5mm) ResCom TM sheathing -/60/60 (10mm) ResCom TM sheathing -/90/90 (10mm) ResCom TM sheathing -/120/120 (12mm) ResCom TM sheathing -/180/180 (14mm) ResCom TM sheathing -/240/240 (15mm) ResCom TM sheathing. A building is to be constructed to maintain structural stability during a fire to allow occupants time to safely evacuate, allow fire brigade intervention and to avoid damage to other property. A building is also to be provided with safe guards to prevent fire spread so that occupants can safely evacuate without injury or illness and to avoid the spread of fire to surrounding buildings. A building must have elements which will, to the degree necessary, avoid the spread of fire to the exits, the occupancy units and public corridors, between buildings and within a building. Type of construction required Rise in storeys Class of building 2, 3, 9 5, 6, 7, 8 4 or more A A 3 A B 2 B C 1 C C Paint or fire-retardant coatings must not be used to make a substrate comply with the required fire hazard properties.

2 BCA Volume : Section C Part C3 Protection of Opening (inclusive of all parts C3.0 to 3.17) Protection of Openings The deemed to satisfy provisions of part C3 do not apply to: Control joints, weep holes and the like in external walls of masonry construction and joints between panels in external walls of pre-cast concrete panel construction in, in all cases they are not larger than necessary for the purpose. Non-combustible ventilators for sub-floor or cavity ventilation. Openings in the vertical plane formed between building elements at the construction edge or perimeter of a balcony or veranda, colonnade, terrace or the like. In a car park. Openings in building elements required to be fire-resisting include doorways, windows (including any associated fanlight), infill panels and fixed or openable glazed areas that do not have the required FRL. Protection of openings in external walls Openings in an external walls that is required to have a FRL must be protected in accordance to 'acceptable methods of protection' and if wall-wetting sprinklers are used, they are located externally, and if required not occupy more than 1/3 of the area of the external wall of the storey unless they are in a Class 9b building. Separation of external walls and associated openings in different fire compartments The distance between parts of external walls and any openings in different fire compartments separated by a fire wall must not be less than the table below unless: Those parts of each wall have a FRL minimum of 60/60/60 Distance between external walls and associated openings in different fire compartments Angle between walls Minimum distance 0 o (Walls opposite) 6m More than 0 o to 45 o 5m More than 45 o to 90 o 4m More than 90 o to 135 o 3m More than 135 o to less than 180 o 2m 180 o or more Nil Acceptable methods of protection Where protection is required the following must be protected by: a) Doorways: i. internal or external wall wetting sprinklers as appropriate used with doors that are self or automatic closing. ii. -/60/30 fire doors that are self or automatic closing. b) Windows: i. internal or external wall wetting sprinklers as appropriate used with windows that are automatic closing or permanently fixed closed. ii. -/60/- fire windows that are automatic closing or permanently fixed closed. iii. -/60/- automatic closing fire shutters. c) Other openings: i. excluding voids - internal or external wall wetting sprinklers, as appropriate. ii. construction having a FRL not less than -/60/- Doorways in fire walls

3 Each doorway must be protected by: 2 fire doors or fire shutters, one on each side of the doorway, each of which had an FRL of not less than 1/2 that required for the fire wall except that each door or shutter must have an insulation level of at least 30. a fire door on one side and fire shutter on the other side. a single fire door or fire shutter which has a FRL not less than required for the firewall except that each door or shutter must have an insulation level of at least 30. Protection of doorways in horizontal exits A doorway that is part of a horizontal exit must be protected by either a single fire door that has the minimum FRL required and an insulation level of at least 30 or in class 7 or 8 buildings, 2 fire doors, one on each side of the doorway, each with a FRL not less than half required for the fire wall and each door must have an insulation level of at least 30. Openings in fire isolated lift shafts Doorways - If a lift shaft is required to be fire isolated, an entrance doorway to that shaft must be protected by -/60/- fire doors that: comply with AS are set to remain closed except when discharging or receiving passengers, goods or vehicles. Lift indicator panels - A lift call panel, indicator panel or other panel in the wall of a fire isolated lift shaft must be backed by construction having a FRL minimum of -/60/60 if it exceeds 35000mm 2 in area. Bounding construction: Class 2 and 3 buildings and Class 4 parts Protection for a doorway must be at least: Type A construction - self closing -/60/30 Type B or C construction - self closing, tight fitting, solid core door, not less than 35mm thick. Other openings in internal walls which are required to have a FRL with respect to integrity and insulation must not reduce the fire resisting performance of the wall. Openings in floors and ceilings for services Where a service passes through: a floor that is required to have a FRL with respect to integrity and insulation. a ceiling required to have a resistance to incipient spread of fire. A service must be protected: in a building of Type A construction by a shaft in a building of Type B or C construction by a shaft that will not reduce the fire performance of the building elements it penetrates Where a service passes through a floor which is required to be protected by a fire protective covering, the penetration must not reduce the fire performance of the covering. Openings in shafts In a Type A construction, an opening in a wall providing access to a ventilating, pipe, garbage or other service shaft must be protected with: if it's in a sanitary compartment - a door or panel which, together with its frame, is non-combustible or has a FRL not less than -/30/30 a self closing -/60/30 fire door or hopper

4 an access panel having a FRL minimum of -/60/30 if the shaft is a garbage shaft - a door or hopper of non-combustible construction Columns protected with lightweight construction to archive a FRL A column protected by lightweight construction to achieve a FRL which passes through a building element that is required to have a FRL or a resistance to the incipient spread of fire, must be installed using a method and materials identical with a prototype assembly of the construction which has achieved the required FRL or resistance to the incipient spread of fire. BCA Volume : Part F5 Sound Insulation to Rw 60+ctr The objective is to safeguard occupants from illness or loss of amenity as a result of undue sound being transmitted between adjoining sole-occupancy units, from common spaces and from parts of different classifications. A part of a building that separates sole-occupancy units, a sole-occupancy unit from a part of another classification in the building, or a sole-occupancy unit from a common space is to be constructed to prevent undue sound transmission. This only applies to class 2, 3 or 9c buildings. In class 2 or 3 buildings walls and floors separating sole-occupancy units or a sole-occupancy unit from a plant room, lift shaft, stairway, public corridor, public lobby, or the like, or part of a different classification must provide insulation against the transmission of airborne and impact generated sound sufficient to prevent illness or loss of amenity to the occupants. The required sound insulation of a floor or wall must not be compromised by the incorporation or penetration of a pipe or other service element or a door assembly. This applies to class 2, 3 and 9 buildings. Class 9c building walls separating between a kitchen, bathroom, laundry, plant room, etc and floors separating sole-occupancy units must provide insulation against transmission of sound to prevent illness or loss of amenity to occupants. Determination of airborne sound insulation rating A form of construction required to have an airborne sound insulation rating must have the required value for weighted sound reduction index (R w ) or weighted sound reduction index with spectrum adaptation term (R w +C tr ) determined in accordance with AS/NZS or ISO Determination of impact sound insulation ratings A floor in a building required to have an impact sound insulation rating must have the required value for weighted normalised impact sound pressure level with spectrum adaptation term (L n,w + C l ) determined in accordance with AS/ISO A wall in a building required to have an impact sound insulation rating must: for a class 2 or 3 building, be of discontinuous construction for a class 9c ages care building must - o for other than masonry, be two or more separate leaves without rigid mechanical connection except periphery. o be identical with a prototype that is no less resistant to the transmission of impact sound when tested. Sound insulation rating on floors

5 A floor in a class 2 or 3 building must have a R w + C tr (airborne) not less than 50 and an L n,w + C l (impact) not more than 62 if separates sole-occupancy units or a sole-occupancy unit from a plant room, lift shaft, stairway, public corridor, etc or parts of a different classification. A floor in Class 9c buildings separating sole-occupancy units must have minimum R w of 45. Sound insulation rating of walls A wall in a class 2 or 3 building must: have an R w + C tr (airborne) not less than 50 if it separates sole-occupancy units. have an R w (airborne) not less than 50 if it separates sole-occupancy units from a plant room, lift shaft, stairway, public corridor, etc or parts of a different classification. A door incorporated in a wall in class 2 or 3 building that separates sole-occupancy from a public area must provide an R w minimum of 30. A wall in class 9c buildings must have an R w not less than 45 if it separates sole-occupancy units or a unit from a kitchen, bathroom, laundry, etc. Where a wall required to have sound insulation has a floor above, the wall must continue to the underside of the above floor or a ceiling that provides the sound insulation required for the wall. Where a wall required to have sound insulation has a roof above, the wall must continue to the underside of the roof above or a ceiling that provides the sound insulation required for the wall. BCA Volume : Part , fibre cement planks and weatherboard cladding Wall cladding boards must: for 7.5mm (minimum) thick fibre-cement - comply with AS/NZS or ISO 8336 BCA Volume : Part , fibre cement sheet wall cladding ResCom TM wall cladding must: comply with AS/NZS or ISO 8336 be fixed in accordance with installation guidelines where also acting as structural bracing, be installed using the lesser of the stud and fixing spacings for both applications BCA Volume 22014: Part , eaves and soffit linings External ResCom TM sheets and linings used as eaves and soffit linings must: comply with AS/NZS or ISO 8336 be fixed in accordance with installation guidelines BCA Volume : Part 3.7.1, fire separation for FRL to 60/60/60 External walls of class 1 buildings An external wall of a class 1 building, and any openings in that wall, must comply with construction of external walls if the wall is less than: 900mm from an allotment boundary other than the boundary adjoining a road alignment or other public space 1.8m from another building on the same allotment other than an appurtenant class 10 building or a detached part of the same class 1 building.

6 Construction of external walls External walls (including gables) require to be fire resisting must extend to the underside of a non-combustible roof covering or non-combustible eaves lining and must: have a FRL of not less than 60/60/60 when tested from the outside be of masonry-veneer construction in which the external masonry veneer is not less than 90mm thick be of masonry construction not less than 90mm thick Openings in external walls required to be fire resisting must be protected by non-openable fire windows or other construction with a FRL or not less than -/60/- or self-closing solid core doors not less than 35mm thick. Class 10a buildings Class 10a building must not significantly increase the risk of spread of fire between class 2 to 9 buildings. Separating walls A separating wall between class 1 buildings, or a wall that separates a class 1 building from a class 10a building which is not appurtenant to that class 1 building must have a FRL of not less than 60/60/60 and: commence at the footings or ground slab extend if the building has a non-combustible roof covering, to the underside of the roof covering or if the building has a combustible roof covering, to not less than 450mm above the rood covering. Eaves, verandas and similar spaces that are open to the roof space and are common to more than once class 1 dwelling must be separated y a non-combustible vertical lining. Any service opening in separating wall must have construction with a FRL minimum of -/60/60. If any electrical wire or cable penetrates a separating wall the service and building element at the penetration must be identical with a prototype assembly which has been tested in accordance with AS and AS and achieve a FRL of no less than -/60/60. The same applies for an electrical switch, outlet, stocked, etc that is accommodated in a separating wall. BCA Volume : Part 3.7.4, bush fire zones BAL-FZ including all state variations to Part and , as tested under AS1530 Part and AS1530 Part including NSW state variation, SA state variation, TAS state variation Performance requirement is satisfied for a class 1 building or a class 10a building or deck associated with a class 1 building which is located in a designated bushfire prone area if it is constructed in accordance with AS State and territory variations New South Wales Performance requirement is satisfied in a designated bushfire prone area for: a Class 1 building; or a Class 10a building or deck associated with a Class 1 building, If it is constructed in accordance with the following: AS 3959, except for Section 9 Construction for Bushfire Attack Level FZ (BAL FZ). Buildings subject to BAL FZ must comply with specific conditions of development consent for construction at this level; or the requirements of above as modified by the development consent following consultation with the NSW Rural Fire Service under section 79BA of the Environmental Planning and Assessment Act 1979; or

7 the requirements of the first point as modified by development consent with a bushfire safety authority issued under section 100B of the Rural Fires Act 1997 for the purposes of integrated development. Queensland Performance requirement is satisfied in a designated bushfire prone area for a Class 1 building or a Class 10a building or deck associated with a Class 1 building which is located in a designated bushfire prone area if it is constructed in accordance with AS The requirements of above do not apply when the classified vegetation is group F rainforest (excluding wet sclerophyll forest types), mangrove communities and grasslands under 300mm high. Tasmania Performance requirement is satisfied in a designated bushfire prone area for a Class 1 building or a Class 10a building or deck associated with a Class 1 building which is located in a designated bushfire prone area if it is constructed in accordance with AS construction of buildings in bushfire prone areas, vehicle access is provided to the building in accordance with Tas and a water supply is provided to the building in accordance with Tas Vehicular access - A Class 1 building in a designated bushfire prone are and the fire fighting water supply access point must be accessible by a private access road which is designed, constructed and maintained to a standard not less than a Modified 4C Access Road. South Australia Compliance with this acceptable construction practice satisfies the performance requirement for a class 1 building or a class 10a building or deck located within 6m of a class 1 building that is required to comply with construction in a designated bushfire prone area. Where a site is located in a designated bushfire area, the bushfire attack level that applies to the site is: for areas identified as General Bushfire Risk areas in South Australian Development Plans, the BAL - Low bushfire attack level; and for areas identified as Medium Bushfire Risk areas in South Australian Development Plans, the BAL bushfire attack level; and for areas identified as High Bushfire Risk areas in South Australian Development Plans, the bushfire attack level assessed for the site in accordance with the requirements of AS 3959; and for Excluded Areas within 500 m of a High Bushfire Risk area, as identified in South Australian Development Plans, the BAL - Low bushfire attack level; and for Excluded Areas within 100 m of a High Bushfire Risk area, as identified in South Australian Development Plans, the bushfire attack level assessed for the site in accordance with AS Construction requirements A Class 10a building or deck is not required to comply if it is separated from a Class 1 building by: for a Class 10a building or deck attached to or sharing a common roof space with a Class 1 building, a wall that extends from the footings or concrete slab to the underside of a non-combustible roof covering and complies with one of the following: o The wall has an FRL of not less than 60/60/60 for loadbearing walls, and -/60/60 for nonloadbearing walls when tested from the Class 10 side. o The wall is of masonry, earth wall or masonry-veneer construction where the masonry leaf is not less than 90 mm in thickness. for a Class 10a building or deck located below a Class 1 building, separating floor and/or wall construction complying with one of the following: o The floor and/or wall has an FRL of not less than 60/60/60 for loadbearing construction, and -/60/60 for non-loadbearing construction when tested from the Class 10 side. o Where part or all of the separating construction is a wall, the wall need not comply with the above if it complies with 'the wall is of masonry, earth wall or masonry-veneer construction where the masonry leaf is not less than 90 mm in thickness'. Openings in separating construction must comply with the following: o Doorways must be protected by -/60/30 self-closing fire doors.

8 o Windows must be protected by -/60/- fire windows permanently fixed in the closed position. o Other openings (excluding control and construction joints, sub-floor vents, weepholes and penetrations for pipes and conduits) must be protected by construction with an FRL of not less than -/60/-. Where any material, element of construction or system satisfies the test criteria of either AS , for BAL 12.5, BAL 29 and BAL 40 and AS for BAL FZ, it satisfies the requirements of that BAL. If any material, element of construction or system satisfies the test criteria without screening for ember protection, the requirements for screening of openable parts of windows must still apply. Polycarbonate may be used as roof sheeting for Class 10a buildings located within 6 m of a Class 1 building for BAL Low, BAL 12.5, BAL 19 and BAL 29 sites. BCA Volume 22014: Part 3.8.6, Sound Insulation to Rw 60+ctr Provide insulation from airborne and impact sound, a separating wall between two or more class 1 buildings must: achieve the weighted sound reduction index with spectrum adaptation term (R w + C tr ) and discontinuous construction requirements, as required by table be installed in accordance with the appropriate requirements. For the purpose of this part, the R w + C tr must be determined in accordance with AS/NZS or ISO Required R w airborne and impact sound levels for separating walls Separating Wall - location and penetrations Discontinuous Construction R w + C tr Required Between a bathroom, sanitary compartment, laundry or kitchen and a habitable room (other than a kitchen) in an adjoining class 1 building YES 50 (dwelling) In all other cases to those listed above NO 50 Duct, soil, waste and water supply pipes and storm water pipes A duct, soil, waste or water supply pipe or storm water pipe that passes through a separating wall between class 1 buildings if the NO 40 adjacent room is a habitable room (other than a kitchen) Duct, soil, waste and water supply pipes and storm water pipes A duct, soil, waste or water supply pipe or storm water pipe that passes through a separating wall between class 1 buildings if the NO 25 room is a kitchen or any other room Notes: Discontinuous construction means a wall system having a minimum 20mm cavity between two separate leaves, with: for masonry, where a wall ties are required to connect leaves, the ties are of the resilient type for other than masonry, there is no mechanical linkage between leaves except at the periphery A staggered stud wall is not deemed to be discontinuous construction. General installation requirements for walls To achieve the appropriate level of sound insulation walls must: be constructed in accordance with the appropriate requirements at the junction of sound insulated walls with any perimeter walls and roof cladding must be sealed as required ResCom TM wall board must be installed as follows: if one layer is required on both sides of a wall the joints must be staggered on opposite sides if two layers are required, the first layer must be fastened in accordance with the first point and the second layer joints must not coincide with those of the first layer the following joints must be taped and filled solid: o outer layer joints between sheets

9 o joints between sheets and any adjoining construction Steel framing and perimeter members must be installed as follows: the section of steel must be not less than 0.6mm thick studs must not be less than 63mm in depth unless another depth to permit secure fixing of the ResCom TM wall board all steel members at the perimeter of the wall must be securely fixed to the adjoining structure and bedded in resilient compound or the joints must be caulked so that there are no voids between the steel members and the wall Timber studs and perimeter members must be installed as follows: Studs must be fixed to top and bottom plates of sufficient depth to permit secure fixing of the ResCom TM wall board. Noggings and like members must not bridge between studs supporting different wall leaves. All timber members at the perimeter of the all must be securely fixed to the adjoining structure and bedded in resilient compound or the joints must be caulked so there are no voids between the timber members and the wall. Subject to the following conditions and limitations: 1. Must be installed in accordance with the approved MgO Corp Board TM General Installation Manual (GIM- Edition ) or MgO Corp Board TM Fire and Acoustic Walls, Ceilings and Floors Installation Manual (FIM-Edition ). 2. Must be installed by a qualified and licensed tradesperson or builder. 3. Must only be used in situations applicable for the products use as detailed in the relevant sections of the MgO Corp Board TM Installation Manual (GIM-Edition ) or MgO Corp Board TM Fire and Acoustic Walls, Ceilings and Floors Installation Manual (FIM-Edition ). 4. When used in fire separation wall must be installed in accordance with the ResCom TM Fire and Acoustic Walls, Ceilings and Floors Installation Manual (FIM-Edition ) under BCA Volume Part 2A: Sections 2.1, 2.2, 2.3, 2.4 and 2.5 inclusive. Additional FRL's solutions may be under this conformity certification certificate be extrapolated or interpolated using the verification calculation method that complies with the relevant ABCB protocol by suitability qualified engineer. Every part of a building must be constructed in an appropriate manner to achieve the requirements of the BCA, using materials that are fit for the purpose for which they are intended. Evidence to support that the use of material, form of construction or design meets a performance requirement or a deemed-to-satisfy provision may be in the form of one or a combination of the following: A report issued by a registered testing authority, showing that the material or form of construction has been submitted to the tests listed in the report, and setting out the results of those tests and any other relevant information that demonstrates its suitability for use in the building. A current certificate of conformity or a current certificate of accreditation. A certificate from a professional engineer or other appropriately qualified person which - o certifies that a material, design, or form of construction complies with the requirements of the BCA; and o sets out the basis on which it is given and the extent to which relevant specifications, rules, codes of practice or other publications have been relied upon. A current certificate issued by a product certification body that has been accredited by the Joint Accreditation System of Australia and New Zealand (JAS-ANZ). Any other form of documentary evidence that correctly describes the properties and performance of the material or form of construction and adequately demonstrates its suitability for use in the building. Evidence to support that a calculation method complies with an ABCB protocol may be in the form of one or a combination of the following: A certificate from a professional engineer or other appropriately qualified person which - o certifies that the calculation method complies with a relevant ABCB protocol; and

10 o sets out the basis on which it is given and the extent to which relevant specifications, rules, codes of practice and other publications have been relied upon. Any other form of documentary evidence that correctly describes how the calculation method complies with a relevant ABCB protocol. Any copy of documentary evidence submitted, must be a complete copy of the original report or document. A ceiling is deemed to have the resistance to the incipient spread of fire to the space above itself if: it is identical with a prototype that has been submitted to the standard fire test and the resistance to the incipient spread of fire achieved by the prototype is confirmed in a report from a registered testing authority which: o describes the method and conditions of the test and form of construction of the tested prototype in full; and o certifies that the application of restraint to the prototype complies with the standard fire test; or it differs in only a minor degree from a prototype tested under point one and the resistance to the incipient spread of fire attributed to the ceiling is confirmed in a report from a registered testing authority which: o certifies that the ceiling is capable of achieving the resistance to the incipient spread of fire despite the minor departures from the tested prototype; and o describes the materials, construction and conditions of restraint which are necessary to achieve the resistance to the incipient spread of fire. 5. Full technical information is available at or upon request. 6. Formerly issued as CM-11-A0007. Magnesium Oxide Board Corporation Shop 8/175 Ocean Drive, Twin Waters Queensland, 4564 (07) admin@mgoboard.com.au