1 Product. 2 Scope of Use. IGNIS PERFORMANCE SOLUTION No I01R01. Ritek XL Thermal Wall System

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1 IGNIS PERFORMANCE SOLUTION Evaluation No.4214 [2016] 1 Product Ignis Solutions has been engaged by Ritek Building Solutions to evaluate compliance of their Ritek XL Thermal Wall System against the Building Code of Australia. The Ritek XL Thermal Wall System includes a concrete formwork structure with external fibrecement sheets and an internal non-continuous Polyisocyanurate foam insulation. The formwork is filled with concrete in accordance with AS Technical Assessment and performance solution of products for compliance under the National Construction Code of Australia This evaluation report serves as a certificate from professional engineer in accordance with Clause A2.2 (a)(iii) of the National Construction Code Volume One Building Code of Australia 2016 IGNIS PERFORMANCE SOLUTION No I01R01 Ritek XL Thermal Wall System ABN: Suite 16 / 14 Lonsdale Street Braddon, ACT 2612 PO Box 674 Civic Square ACT 2608 t: (02) mail@ignissolutions.com.au 17 December 2016 Date of Issue 30 April 2019 Date of Expiry Benjamin Hughes-Brown FIEAust CPEng NER Chartered Professional Engineer CPEng, NER (Fire Safety / Mech) RPEQ 11498, BPB-C , EF-39394, TDJ-CC6504 MFireSafety (UWS), BEng (UTS), GradDipBushFire (UWS), DipEngPrac (UTS), DipEng (CIT) 2 Scope of Use 2.1 The Ritek XL Thermal Wall System is permitted to be used in accordance with manufacturers instructions for buildings of Type A, B or C construction, Class 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 Occupancies and of any height or rise in storeys. 2.2 The Ritek XL Thermal Wall System is to be installed in accordance with the Ritek XL Wall and XL Thermal Wall Systems Design, Detailing and Installation Guide Version The Polyisocyanurate foam insulation panel is permitted to be used within the wall system where it is shielded from the exterior or interior compartment of the building. 3 National Construction Code 2016 Volume One Building Code of Australia 3.1 Clause A0.2 (a) complying with the Performance Requirements CP1(a), (b), (c) and (d), CP2 (a), (b)(i), (ii), (iii), (iv) and CP Clause A2.2 sub-clause (a)(iii) as evidence to support that the Ritek XL Thermal Wall System meets the nominated Performance Requirements under an Engineering Certificate. 3.3 Specification A2.3 Fire-Resistance of Building Elements The 150mm thick concrete within the Ritek XL Wall System achieves an FRL of at least 240/240/240. In accordance with AS , reducing the thickness to 120mm would maintain an FRL of at least 120/120/120 minutes. 3.4 Performance Requirement CP1 (a), (b), (c) and (d) Structural Adequacy The Ritek XL Wall System achieves an FRL for use in accordance with the Deemed-to-Satisfy Clause C1.1. i. Deemed-to-Satisfy Clause C1.1 and Specification C1.1 Type of Construction where FRL s of up to 120/120/120 (for 120mm concrete) and 240/240/240 (for 150mm concrete) as established in accordance with Specification A Performance Requirement CP2 (a), (b)(i), (ii), (iii), (iv) Spread of Fire The Polyisocyanurate foam insulation panel does not contribute to the spread of fire as evaluated within this performance analysis. 3.6 State and Territory Variations Spread of Fire The Ritek XL Thermal Wall System can be used in all States and Territories within Australia and complies with all relevant State and Territory variations of the above Performance Requirements related to the products use. 4 Conditions and Limitations 4.1 This certificate is limited to the details within this evaluation report including the above compliance elements, product description and scope. This evaluation report is to be read, considered and used as a whole document being 12 pages. 4.2 The Ritek XL Thermal Wall System is to be installed in accordance with the Ritek XL Wall and XL Thermal Wall Systems Design, Detailing and Installation Guide Version The Ritek XL Thermal Wall System can be penetrated by materials and building services without the requirement for additional protection measures. This does not apply to any fire resisting element of the wall system. These elements will require compliant penetration protection in accordance with Clause C3.15 of the BCA. Providing an alternative in performance based design 1/12

2 Fire Spread and Impact and Control Sub-system C Performance Solution Ritex XL Thermal Wall System Introduction The purpose of this assessment is to evaluate a performance solution of the Ritek XL Thermal Wall System to satisfy the performance requirements of the National Construction Code Volume 1 Building Code of Australia (BCA). The Ritek XL Thermal Wall System incorporates a polyisocyanurate foam insulation panel. The polyisocyanurate foam insulation panel is deemed combustible. This assessment evaluates the polyisocyanurate foam insulation board within the wall construction where it is shielded from the internal compartment and external elements. The remainder of the wall being the fibre cement sheets and concrete maintains compliance with the requirements of the BCA. The BCA sets conditions for combustible wall products that are used within a wall construction. The Australian Building Codes Boards as well as several State and Territory planning administrations do not consider a Deemed-to-Satisfy provision exists within the Building Code of Australia for combustible products used as the external element of a wall. Their advice to date is that a performance solution is to be undertaken for installation of combustible elements within or external to walls systems of Type A or B construction. The following points establish the basis of product compliance within walls: Materials that are non-combustible or furniture or other non-building fixtures are not subject to the requirements of group numbers or fire hazard properties. Materials exposed to the interior of the compartment are required to achieve a Group Number. o Two test methods are available for determining Group Numbers: Empirical correlation (Small scale cone calorimeter testing AS/NZS 3837 or ISO ) Full scale room test (ISO 9705) o Not all materials are suitable to the empirical correlation test, these products include: with profiled facings that contain materials that melt or shrink away from flame with joints or openings with a reflective surface These materials are required to achieve a Group Number through full scale room fire tests as per ISO Materials not exposed to the interior of the compartment and that are fully concealed are to comply with the requirements of BCA Specification C1.10, Clause 7, Table 4 other materials. In particular, sarking-type material is to be tested to AS and achieve a Flammability Index of no more than 0 when used in a fire isolated exit or fire control room or 5 in other locations and insulation material to be tested to AS and achieve a spread of flame index less than 9 and a smoke developed index less than 8 if the Spread of Flame Index is more than 5. Any combustible materials used within a wall system for Type A or B construction is required to be evaluated against the Performance Requirement CP2. Australian Standard AS 5113:2016 has recently been published which references the full scale fire test to ISO and BS The Australian Standard AS 5113:2016 is not referenced in the Providing an alternative in performance based design 2/12

3 BCA and the ABCB makes the following statement: It is likely that AS 5113 will be referenced in a new NCC Volume One Verification Method in the next edition of the NCC, and will enable industry to verify the fire performance of external cladding systems against the relevant Performance Requirements of the NCC. This will improve compliance, promote innovative solutions and ensure the required fire performance is achieved. Provision A0.1 details that a Building Solution will comply with the BCA if it satisfies the Performance Requirements. A building solution as defined by the BCA means a solution, which complies with the Performance Requirements and is a Performance Solution or a solution, which complies with the Deemed-to Satisfy provisions or a combination of both. The purpose of this report is to provide a performance based assessment of the design for compliance with the relevant fire related clauses of the BCA as well as the nominated Performance Requirements being CP2 and CP4. This evaluation demonstrates that the polyisocyanurate foam insulation panel material has been tested and demonstrated to not pose an undue risk of fire spread, impair any required FRL and when located near or directly above a required exit does not make the exit unusable in a fire. Brief of Proposed Performance Solution Provision C1.1 of the BCA details that a Class 2 building with a rise in storeys of three or more is to be Type A construction. Clause 3.1(b) of Specification C1.1 requires that external walls of buildings of Type A construction must be non-combustible and Table 3 details the FRL of building elements for Type A construction. The Ritek XL Thermal Wall System is certified under the CodeMark Certification Scheme CMA- CM40087 for compliance against the BCA for internal and external use in compliance with Performance Requirement CP2. Further details of the products compliance can be found on the Australian Building Codes Board registry, see A copy of the certificate available on the CertMark International product registry, see It is proposed to evaluate the Ritek XL Thermal Wall System for fire propagation characteristics of exterior wall assemblies containing combustible components against the primary performance requirement CP2. The insulation panel is not on the internal side of the wall or exposed to the internal compartment. It is identified that multiple façade fires have occurred around the world including Australia (Lacrosse fire, November 2014) which has caused concern for combustible element installation. The spread of fire via the façade of a building is not to occur under compliance with the BCA even under the Performance Requirements. Research undertaken by the CSIRO sponsored by the Fire Protection Research Foundation, June 2014 detailed that the external façade fires typically involved highly combustible Exterior Insulation Finish Systems (EIFS) or polyethylene core (PE) Metal Composite Panels (MCP). The Ritek XL Thermal Wall System is not an EIFS or PE core MCP and does not pose the same risk. Technical Specification As detailed by Ritek, the Ritek wall systems are pre-fabricated permanent formwork systems for concrete walls used for all types of external and internal walls. They consist of lightweight panels created by bonding high quality, hard-wearing and durable fibre cement sheets to a patented composite stud assembly. Ritek wall systems are quickly and simply installed on site and then corefilled with reinforced structural concrete to achieve loadbearing walls that are fire and sound rated. The fibre cement sheeting remains in place as sacrificial formwork, and provides an excellent substrate for applied finishes such as acrylic render, cladding, tiling and painting. The Ritek XL Wall System panels consist of 6mm fibrecement, recessed-edge facing sheets, bonded to vertical studs. The studs are made up from aluminium sections connected together with plastic spacer pieces. All aluminium components are protected with a chromate coating. The panels are stood in place, both vertical and horizontal reinforcement is placed as required and the wall completed by filling the panels with structural concrete. Once complete, the walls act as reinforced concrete and the actual design, detailing and construction of the walls must comply with AS 3600 Concrete Structures. Providing an alternative in performance based design 3/12

4 Product Identification The Ritek XL Thermal Wall System can be identified by the packaging label purchasing identification as well as the unique system characteristics. An example image is provided below. FIGURE 1: PRODUCT IMAGE BCA Deemed-to-Satisfy Basis The BCA does not exclusively provide a Deemed-to-Satisfy provision for the use of external combustible cladding systems. A number of Deemed-to-Satisfy Clauses detail the requirements to limit fire spread of combustible components of a wall. In accordance with Clause C1.10, compliance with Specification C1.10, Clause 7 Table 4 permits combustible products where the spread of flame and smoke development indices are less than that permitted by the BCA. Table 4 also requires the member or assembly to retain the protection in position so that it prevents ignition of the material and continues to screen it from access to free air for a period of not less than 10 minutes. Where the wall is to achieve a Fire Resistance Level, compliance with Specification C1.1 Clause 2.4 is required. This clause reiterates compliance with Specification C1.10, not located such to make the exit unusable in a fire and does not otherwise constitute an undue risk of fire spread via the façade of the building. The Australian Building Codes Board has detailed that Clause 2.4 of Specification C1.1 relates to awnings, sunscreen or similar shading devices, ground moisture barrier, guttering and downpipes and wallpaper applied to a dividing wall between residential units. BCA Clause C1.10 requires combustible wall materials to comply with BCA Specification C1.10 where See below: FIGURE 2: NCC VOL 1 CLAUSE C1.10 (PART) Source: ABCB NCC Volume One Building Code of Australia 2016 Providing an alternative in performance based design 4/12

5 FIGURE 3: NCC VOL 1 SPECIFICATION C1.10 INSULATION REQUIREMENTS Source: ABCB NCC Volume One Building Code of Australia 2016 Intent of BCA Deemed-to-Satisfy Clause The Guide to the BCA is intended as a reference manual to provide clarification to the BCA and should be read in conjunction with the BCA. The Guide to the BCA described the intent of Provision E1.4 as: FIGURE 4: NCC GUIDE TO VOL 1 CLAUSE C1.1 Source: ABCB NCC Volume One, Guide Building Code of Australia 2016 FIGURE 5: NCC GUIDE TO VOL 1 CLAUSE C1.10 Source: ABCB NCC Volume One, Guide Building Code of Australia 2016 BCA Performance Requirement The primary relevant BCA Performance Requirements are CP2 for internal and external use addressing spread and resistance of fire as detailed below. FIGURE 6: NCC VOL 1 PERFORMANCE REQUIREMENT CP2 Providing an alternative in performance based design 5/12

6 Source: ABCB NCC Volume One Building Code of Australia 2016 Guidance on Performance Requirement The Guide to the BCA is intended as a reference manual to provide clarification to the BCA and should be read in conjunction with the BCA. CP2 Spread of fire The Guide to the BCA details that CP2 deals with the spread of fire both within the building and between buildings. It aims to avoid a situation where fire either endangers occupants evacuating by way of exits, or impedes the capacity of emergency services personnel to access the building and fight the fire or rescue occupants. In addition, CP2 aims to minimise the risk of fire spreading from one building to another that could endanger the occupants of both buildings and impede the actions of the fire brigade. The guide does detail that the term to the degree necessary is used within CP2. This word usage is designed to provide flexibility in the way this provision is implemented. It means that the BCA recognises that different building elements require differing degrees of protection to avoid the spread of fire. The expression is intended to allow the appropriate authority to determine the degree of compliance necessary in each particular case after considering each building scenario. Reason for Deviating from Deemed-to-Satisfy Provisions As detailed above, and by the ABCB, the BCA does not provide an exclusive Deemed-to-Satisfy clause for external combustible wall elements. The reason for this performance solution is to evaluate the use of the Ritek XL Thermal Wall System where the combustible polyisocyanurate foam insulation panel is located within the formwork being shielded from an internal fire event by a 6mm fibre cement sheet as well as a wall of concrete and shielded from an external fire event by a 6mm fibre cement sheet. A gap of at least 20mm, filled with concrete separates each insulation panel. The polyisocyanurate foam insulation panel has been tested in accordance with the fire hazard property requirements of the BCA and remains within the acceptable limits. Meeting the Performance Requirements Meeting the Performance Requirements is undertaken in accordance with BCA Provision A0.2 (c) A combination of (a) and (b) where (a) complies with the DtS and (b) formulating an alternative solution. The building is understood to comply with all requirements of the BCA DtS provisions with the exception of the polyisocyanurate foam insulation panel within the wall. Assessment Method The assessment method undertaken is in accordance with BCA Provision A0.5 (b)(ii) Verification Methods as the appropriate authority accepts for determining compliance with the Performance Requirements. Methodology The following methodologies will be applied to the evaluation: þ Absolute o Quantitative þ Deterministic o Comparative þ Qualitative o Probabilistic Providing an alternative in performance based design 6/12

7 Absolute approach As outlined in the International Fire Engineering Guideline an absolute approach is typically when an evaluation is carried out on an absolute basis, the results of the analysis of the trial design are matched, using the agreed acceptance criteria against the objectives or performance requirements without comparison to deemed-to-satisfy or prescriptive or benchmark designs. Qualitative approach A qualitative approach refers to descriptions or distinctions based on a quality or characteristic rather than on a quantity or measures value. The qualitative approach includes structured arguments to demonstrate compliance. Deterministic approach A deterministic approach is a methodology based on physical relationships derived from scientific theories and empirical results that for a given set of conditions will always produce the same outcome. Acceptance Criteria The acceptance criteria for this performance solution is that the proposed combustible elements of the wall have sufficient measures to limit fire spread such that the BCA Performance Requirement CP2 is satisfied to the degree necessary. Identified Hazard The potential hazard is fire spread external to the building. Testing of the core material detailing its reaction to radiation as well as its group number has demonstrated a level of satisfaction that the polyisocyanurate foam insulation panel is not considered a fire spread risk. It is important to note that the polyisocyanurate foam insulation panel is cast and sealed within a solid wall where it is discontinuous from one panel to the next and shielded from the external elements by a deemed non-combustible fibre cement sheet. The risk of fire spread is considered to be remote based on these factors and evaluated further below. Relevant Technical Literature The National Construction Code The National Construction Code (NCC) is an initiative of the Council of Australian Governments developed to incorporate all on-site construction requirements into a single code. The Building Code of Australia (BCA) is Volume One and Volume Two of the NCC. The BCA is produced and maintained by the Australian Building Codes Board (ABCB) on behalf of the Australian Government and each State and Territory government. The BCA is a uniform set of technical provisions for the design and construction of buildings and other structures throughout Australia whilst allowing for variations in climate and geological or geographic conditions. AS Methods for fire tests on building materials, components and structures Simultaneous determination of ignitability, flame propagation, heat release and smoke release AS is a small scale test that assesses the potential fire hazard of wall linings during the early growth phase of a fire in a compartment. It gives results in relation to Ignitibility, Flame Spread, Heat Evolved and Smoke Developed, which give a measure of how readily a material ignites and supports flame spread when subjected to a small fire source. AS Fire-resistance tests on elements of construction Methods for determination of the fire resistance of loadbearing elements of construction. Each test is a full scale fire-resistance tests of elements of building construction following the standard fire curve. In most cases, a single test, carried out in accordance with either of these standards, establishes the fire-resistance for the element of construction concerned. The test subjects the material to a furnace where it is heated to the standard time/temperature rise curve. The size of the Providing an alternative in performance based design 7/12

8 tested element under the standard test is to be 3m. AS/NZS 3837:1998 Method of test for heat and smoke release rates for materials and products using an oxygen consumption calorimeter. This Standard specifies a test method for measuring the response of materials exposed to controlled levels of radiant heating with or without an external igniter. The test method is used to determine the ignitability, heat release rates, mass loss rates, effective heat of combustion, and smoke release of materials and products. Fire Testing The polyisocyanurate foam insulation panel has been tested to local fire standards. This includes: AS :1999 Simultaneous determination of Ignitability, Flame Propagation, Heat Release and Smoke Release AS :2005 Fire-resistance tests on elements of construction Methods for determination of the fire resistance of loadbearing elements of construction. AS 3837:1998 Method of test for heat and smoke release rates AS testing of core and assembly AS is a small scale test that assesses the potential fire hazard of wall linings during the early growth phase of a fire in a compartment. It gives results in relation to Ignitibility, Flame Spread, Heat Evolved and Smoke Developed, which give a measure of how readily a material ignites and supports flame spread when subjected to a small fire source. These results alone are not considered to provide sufficient information to support the use of Aluminium Composite Panels in external applications. AWTA AS/NZS Methods for fire tests on building materials, components and structures Simultaneous determination of ignitability, flame propagation, heat release and smoke release Certificate of Test of the polyisocyanurate foam insulation panel. The Australian Wool and Textile Authority (AWTA) is a Registered Testing Authority with the National Association of Testing Authorities, accreditation Testing to AS is within AWTA scope of testing. The test was undertaken on 15 October 2015 in report and produced the following results: Regulatory Indices: Spread of Flame Index 0 Range 0-10 Smoke Developed Index 4 Range 0-10 AS/NZS 3837:1998 testing of the assembly The cone calorimeter is a small-scale oxygen consumption calorimeter. Specimens, 100 mm square are supported horizontally on a load cell and exposed to a set external radiant heat flux in ambient air conditions. The radiant heat source is a conically shaped radiator that can be set to impose any heat flux in the range kw/m 2 on the specimen surface. Ignition is promoted using a spark igniter. Combustion gases are extracted in an exhaust duct where instrumentation measures exhaust gas flow, temperature, O 2, CO and CO 2 concentrations and smoke optical density. From these measurements quantities such as heat release rate, mass loss rate, effective heat of combustion and smoke production can be calculated. Time to ignition at set heat flux exposures is determined by observation. The cone calorimeter apparatus and procedure are described in ISO 5660, AS/NZS 3837 and ASTM E Verification Method CV1 details a means to comply with CP2(a)(iii) to avoid the spread of fire between buildings on adjoining allotments. CV1 is verified when it is calculated that a building will not cause heat flux in excess of those set out in column 2 of Table CV1. Table CV1 details 80kW/m 2 at the boundary as the maximum value. AS/NZS 3837:1998 tests a heat flux up to 100kW/m 2 and to withstand this heat flux without reaching flashover demonstrates that the product has the capacity to be located on the buildings external wall should it be located on the allotment boundary and not achieve flashover. Under the New Zealand Building Code, AS/NZS 3837 is used as the measure for a product to be installed within 1m of a Providing an alternative in performance based design 8/12

9 property boundary provided flashover is not achieved during the test, a similar means to that detailed above. The CSIRO tested the polyisocyanurate foam insulation panel to a rate of 50 kw/m 2. The CSIRO is a Registered Testing Authority with the National Association of Testing Authorities accreditation 165. Testing to AS/NZS 3837:1998 is within CSIRO scope of testing. The test was undertaken on 19 July 2011 in report 1570 and produced the following results: Regulatory Indices: Group Number 1 Average specific extinction area 31.1kW/m 2 AS details group numbers as follows: 1. A Group 1 material is one that does not reach flashover when exposed to 100kW for 600 seconds followed by exposure to 300kW for 600 seconds. 2. A Group 2 material is one that reaches flashover following exposure to 300kW within 600 seconds after not reaching flashover when exposed to 100kW for 600 seconds. 3. A Group 3 materials is one that reaches flashover in more than 120 seconds but with a 600 seconds when exposed 100kW. 4. A Group 4 material is one that reaches flashover within 120 seconds when exposed to 100kW. The test results demonstrate a group 1 is achieved, meaning the material does not reach flashover and therefore should be permitted to be installed on a wall up to and on the allotment boundary. AS Fire-resistance tests on elements of construction Methods for determination of the fire resistance of loadbearing elements of construction. Australian Standard AS :2005 AS is a large scale (3m x 3m) furnace test small scale test that sets out test procedures and criteria for the determination of fire-resistance of elements of building construction. It gives results in relation to Structural adequacy, integrity and Insulation. The CSIRO is a Registered Testing Authority with the National Association of Testing Authorities, accreditation 165. Testing to AS is within CSIRO scope of testing. The test was undertaken on 31 October 2008 in report FSV 1324 and produced the following results: Regulatory Indices: Structural adequacy Integrity Insulation no failure at 241 minutes no failure at 241 minutes no failure at 241 minutes Performance Evaluation Clause A0.1 of the BCA details that compliance with the National Construction Code and subsequently Volume One Building Code of Australia is achieved by satisfying the Performance Requirements. Performance Requirements CP2 and CP4 as identified by the project certifier will be evaluated below. Many elements of the performance requirements cross over between the functions. A matrix table is provided below of the elements relating to the nominated performance requirements. It is recommended that should the building be subject to performance solutions relating to CP2 or CP4 that the sub-elements of the performance requirements be reviewed inline with the building and proposed solution. Further to the details within the guidance on Performance Requirements provided above, the following is provided for the performance requirements in general with each specific element addressed. CP2 Fire Spread The principle requirements under CP2 (a), (b)(i), (ii), (iii), (iv) is that building elements must avoid the spread of fire to exits, sole-occupancy units and public corridors, between buildings and in a building. The fire hazard property testing of the product has demonstrated that it presents a low risk in contributing to the spread of fire itself. Outside of the fire event, independent of the polyisocyanurate foam insulation panel, the panels themselves have been tested for its reaction when exposed to fire Providing an alternative in performance based design 9/12

10 tests. The product achieved a Group 1 result and passes the external fire tests. Note 2 of table 4 of Specification C1.10 details that the combustible element need not comply with the specified indices if shielded by not less than 50 mm thick concrete. Given the polyisocyanurate foam insulation panel is shielded by at least 120 mm of concrete and complies with the fire hazard properties specified indices, it is considered that an internal fire event does not impact on the polyisocyanurate foam insulation panel. The sequence of events for external fire spread occurs where a fire of sufficient intensity breaks down the external fibre cement sheet to expose the polyisocyanurate foam insulation panel see sequence 1. The radiation or impact of the fire is to be of sufficient radiation to cause the polyisocyanurate foam insulation panel to react see sequence 2. The testing indicates that propagation of fire via the polyisocyanurate foam insulation panel does not occur outside of the fire event. An external fire source is needed to maintain a sufficient intensity for the polyisocyanurate foam insulation panel to react. The polyisocyanurate foam insulation panel is not continuous along the wall where a nib of at least 20mm of concrete separates each panel. The external fire source is then required to be of such continued intensity to break down the next external fibre cement sheet for the sequence to continue see sequence 3. FIGURE 7: FIRE SPREAD SEQUENCE The above sequence has a limited capacity to spread fire as the external fire source would have a limited vertical reach of fire intensity to break down the fibre cement. Once the external fibre cement sheet is exposed and the polyisocyanurate foam insulation panel disintegrates, the concrete wall mitigates any further fire spread to the otherside of the wall for a period of at least 120 minutes for the 120mm thick concrete wall and for at least 240 minutes for the 150mm thick wall. This sequence is considered to mitigate the propagation of fire up the wall and is not expected to be via the polyisocyanurate foam insulation panel. Based on the above the following summary addresses each relevant element of CP2: (a) A building must have elements which will, to the degree necessary, avoid the spread of firei. To exits ii. To sole-occupancy units and public corridors iii. Between buildings iv. In a building. When used as a fire wall bounding exits, to sole-occupancy units or public corridors, between buildings or in a building, the Ritek Wall System achieves an FRL of at least 120/120/120 or 240/240/240 minutes depending on the thickness of the concrete establishing compliance with Specification A2.3. Therefore, the Ritek Wall System has elements to avoid the spread of fire. Providing an alternative in performance based design 10/12

11 (b) Avoidance of the spread of fire referred to in (a) must be appropriate toi. The function or use of the building ii. The fire load iii. The potential fire intensity iv. The fire hazard The above established FRL of the Ritek Wall System is to be applied in accordance with Specification C1.1 for the appropriate and required Deemed-to-Satisfy situations for the respective application for the Fire Resistance Level. Evaluation Summary In the opinion of Ignis Solutions, the assessment has demonstrated that the polyisocyanurate foam insulation panel when, in addition to the completed tests on the product, installed and fixed in accordance with the manufacturers instructions satisfies BCA Performance Requirements CP2 (a), (b)(i), (ii), (iii), (iv). Providing an alternative in performance based design 11/12

12 Conditions of Evaluation Report 1. This Evaluation Report: a) relates only to the product as described herein; b) must be read, considered and used in full together with the technical literature; c) does not address any Legislation, Regulations, Codes or Standards, not specifically named herein; d) is copyright of Benjamin Hughes-Brown. 2. Ignis Solutions makes no representation or warranty as to: a) the nature of individual examples of, batches of, or individual installations of the product, including methods and workmanship; b) the presence or absence of any patent or similar rights subsisting in the product or any other product; c) any guarantee or warranty offered by Ritek. 3. Any reference in this Evaluation Report to any other publication shall be read as a reference to the version of the publication specified in this Evaluation Report. 4. Ignis Solutions provides no certification, guarantee, indemnity or warranty, to Ritek or any third party. Reference Documents 1. National Construction Code 2016 Volume One Building Code of Australia, Class 2 to 9 buildings, Australian Building Codes Board, Canberra, International Fire Engineering Guidelines, Australian Building Codes Board, Canberra, AWTA Product Testing AS , Issued 15/10/ CSIRO Product Test FSV 1324 AS dated 31 October CSIRO Product Test 1570 AS/NZS 3837 dated 19 July Providing an alternative in performance based design 12/12