Property of Cooks Plumbing Supplies

Transcription

1 ASSESSMENT REPORT Assessment of the fire resistance performance of various diameter EZIPEX and pipes protected with Fireban One mastic or Hilti Firestop Intumescent sealant CP611A in wall systems when tested in accordance with AS EWFA Report No: Report Sponsor: Boone & Willard Plumbing Pty Ltd Unit 13, 5 Meridian Place Bella Vista, NSW 2153 And Cooks Plumbing Supplies 27 Loyalty Road North Rocks, NSW 2151

2 Page 2 of 25 DOCUMENT REVISION STATUS Date Issued Issue No Description 2/11/ Initial Issue CONTACT INFORMATION Exova Warringtonfire Aus Pty Ltd - ABN NATA Registered Laboratory Unit 2, Hammond Road Dandenong Victoria 3175 Australia T: +61 (0) F: +61 (0) New South Wales Suite 2002a Level 20, 44 Market Street Sydney NSW 2000 Australia T: +61 (0) F: +61 (0) Victoria Unit 2, Hammond Road Dandenong Victoria 3175 Australia T :+61 (0) F:+61 (0) Queensland Northpoint, Unit 29, Level North Quay Brisbane QLD 4000 Australia T: +61 (0) F: +61 (0)

3 Page 3 of 25 CONTENTS 1 INTRODUCTION 4 2 TESTED PROTOTYPES 4 3 VARIATION TO TESTED PROTOTYPES 4 4 REFERENCED TEST PROCEDURES 14 5 FORMAL ASSESSMENT SUMMARY 15 6 DIRECT FIELD OF APPLICATION 16 7 REQUIREMENTS 16 8 VALIDITY 16 9 AUTHORITY Applicant Undertakings and Conditions of Use General Conditions of Use Authorisation on Behalf of Exova Warringtonfire Aus Pty Ltd Date of Issue Expiry Date 17 APPENDIX A - SUMMARY OF SUPPORTING DATA 18 A.1 Test Report EWFA APPENDIX B - ASSESSMENT OF SPECIFIC VARIATIONS 20 B.1 Penetrations on Single, Staggered Single or Double Stud Wall Systems B.2 Penetrations on Various Double Stud Wall Systems Only 20 24

4 Page 4 of 25 1 INTRODUCTION This report presents an assessment of the fire resistance performance of various diameters EZIPEX and pipes protected with Fireban One mastic or Hilti Firestop Intumescent sealant CP611A in wall systems when tested in accordance with AS The tested systems are described in Section 2 if tested in accordance with the referenced test method described in Section 3. The conclusions of the report are summarised in Section 4. The validity of this assessment is conditional on compliance with Sections 6, 7 and 8 of this report. Summaries of the test data on which this assessment is based are provided in the Appendices together with a summary of the critical issues leading to the assessment conclusions including the main points of argument. 2 TESTED PROTOTYPES This assessment makes reference to test report EWFA Test describes a full scale test of a 130mm thick fire rated plasterboard lined wall system with EZIPEX and pipes penetrated on the exposed and unexposed side in accordance with AS The test was undertaken by Exova Warringtonfire Aus Pty Ltd and was sponsored by Boone & Willard Plumbing Pty Ltd and Cooks Plumbing Supplies. Refer to Appendix A for a detailed summary of the reference test data. 3 VARIATION TO TESTED PROTOTYPES The proposed construction for products named EZIPEX and pipes in plasterboard lined walls shall be as tested in EWFA , subject to the following variations; The wall systems shall be single stud, single staggered stud or double studs with same or greater depth than tested and the wall linings are summarised in Table 2. Wall cavity includes Glasswool insulation with a minimum density of 10.5kg/m3. The minimum wall thickness shall be 130mm. Wall systems shall be exposed to exposure from either direction. Penetration installation refers to Table 1. The general arrangement of services is shown in figure 1.

5 Page 5 of 25 Services installed in and out on the fire side wall lining Figure 1 - General arrangement of services Table 1 Penetrations in Wall Systems Listed in Table 2 and 3 ID A B C D E F G H I J K L M N O P Q R S T U V Pipe Ø16mm GAS Ø16mm GAS Ø16mm GAS Ø16mm Additional Fitting Max. height from floor none 1.2m none 0.3m none 2.8m Brass 19bp 1m Services installed in and out on the nonfire side wall lining Sealant around pipe Bostik Fireban One Max. gap around pipe 15mm Max. gap around pipe GAS GAS none 2.8m GAS none 0.3m Hilti CP 611A 10mm 10mm Ø16mm none 1.2m 5mm

6 Page 6 of 25 Table 2 Single and Staggered Steel Stud Systems Construction Details Framing Arrangement and cavity insulation System Number Linings Side One Side Two 1 13mm Fire Rated Plasterboard 1 16mm Fire Rated Plasterboard 1 10mm or 13mm Non Fire grade Plasterboard 2 13mm Fire Rated Plasterboard 2 16mm Fire Rated Plasterboard 1 13mm Fire Rated Plasterboard 1 16mm Fire Rated Plasterboard 1 10mm or 13mm Non Fire grade Plasterboard 2 13mm Fire Rated Plasterboard 2 16mm Fire Rated Plasterboard Table 3 Double Steel Stud Systems Linings Side One Side Two Construction Details 1 13mm Fire Rated Plasterboard 1 16mm Fire Rated Plasterboard 1 10mm or 13mm Non Fire grade Plasterboard 2 13mm Fire Rated Plasterboard 2 16mm Fire Rated Plasterboard 1 13mm Fire Rated Plasterboard 1 16mm Fire Rated Plasterboard 1 10mm or 13mm Non Fire grade Plasterboard Glasswool insulation with a minimum density of 10.5kg/m 3 Bradford Insulation Batts Gold Wall R2.0 with a density of 10.5kg/m3. Framing Arrangement and cavity insulation Bradford Insulation Glasswool Batts Gold Wall R2.0 insulation with a minimum with a density density of of 10.5kg/m 10.5kg/m3. 3 System Number mm Fire Rated Plasterboard 2 16mm Fire Rated Plasterboard

7 Page 7 of 25 Table 4 Schedule of Components Name Description Wall Lining Wall Framing Wall Insulation Bostik Fireban One Sealant Hilti Firestop Intumescent Sealant CP 611A Pipe Pipe Material 13mm or 16mm thick fire grade plasterboard and 10mm and 13mm non-fire grade plasterboard based on design Installation Refer to Table 2 and Table 3 Material Size Spacing Material Steel framing designed in accordance with AS4600 The studs shall be installed as single stud, single staggered stud or double studs to have a minimum wall cavity of 90mm wide. Maximum 500mm centres. Glasswool insulation Density A minimum density of 10.5kg/m 3 Installation Installation Installation Fully installed in the cavity of the wall system. Sealant is applied to: Product EZIPEX PE-X 80 Material Pipe Size Fitting Around the perimeter of wall specimen The annular gap between penetration and wall lining(s) to the full depth of wall lining. Applied to the gap between penetration and wall lining(s) to the full depth of wall lining(s). PEX Ø16.3mm (OD) 2.4mm pipe wall thickness For pipe with no addition fitting: 2 19mm diecast Elbow connectors 6 18mm Copper crimped joint 2 16mm Brass end cap and For pipe fitted with additional Brass 19bp : 2 19mm diecast Elbow connectors 6 18mm Copper crimped joint 1 16mm Brass end cap 1 16mm Brass screw end cap 1 Brass 19bp Product EZIPEX PE-X 80 Material Penetrated through wall linings on either fire side or non-fire side at various height listed in Table 1. PEX Pipe Size Fitting Ø20.2mm (OD) 3.2mm pipe wall thickness For pipe with no addition fitting: 2 24mm diecast Elbow connectors 6 22mm Copper crimped joint 2 Brass end cap and

8 Page 8 of 25 Name Description GAS Pipe GAS Pipe Product Material Pipe Size Fitting Product Material Pipe Size Fitting For pipe fitted with additional Brass 19bp : 2 24mm diecast Elbow connectors 6 Copper crimped joint 2 18mm Copper crimped joint 1 to 16mm reducer 1 Brass end cap 1 Brass screw end cap 1 Brass 19bp Penetrated through wall linings on either fire side or non-fire side at various height listed in Table 1. HDPE/AL/PEX Natural gas/lpg pipe PEX-AL Ø16.1mm (OD) 2.45mm pipe wall thickness For pipe with no addition fitting: 2 19mm diecast Elbow connectors 6 18mm Copper crimped joint 2 16mm Brass end cap and For pipe with additional Brass 19bp ; 2 19mm diecast Elbow connectors 6 18mm Copper crimped joint 1 16mm Brass end cap 1 16mm Brass screw end cap 1 Brass 19bp Penetrated through wall linings on either fire side or non-fire side at various height listed in Table 1. HDPE/AL/PEX Natural gas/lpg pipe PEX-AL Ø (OD) 2.2mm pipe wall thickness For pipe with no addition fitting: 2 24mm diecast Elbow connectors 6 22mm Copper crimped joint 2 Brass end cap and For pipe fitted with additional Brass 19bp : 2 24mm diecast Elbow connectors 6 Copper crimped joint 2 18mm Copper crimped joint 1 to 16mm reducer 1 Brass end cap 1 Brass screw end cap 1 Brass 19bp

9 Page 9 of 25 Name Description 16mm EZIPEX Elbow System 16mm EZIPEX GAS Elbow System 16mm EZIPEX Stopper System Dimension Dimension Penetrated through wall linings on either fire side or non-fire side at various height listed in Table 1. 1 EZIPEX Elbow 16mm 2 EZIPEX Compression Sleeve 16mm 90 degree joint of all 16mm EZIPEX pipes EZIPEX Elbow 16mm: long wide 12mm diameter with 19mm edge diameter EZIPEX Compression Sleeve 16mm: 18mm diameter long 1mm thick 90 degree joint of all 16mm pipes Elbow part: long wide 12mm diameter with 19mm edge diameter Compression Sleeve part: 18mm diameter long 1mm thick Compression Sleeve Elbow connector Compression Sleeve Stopper 1 EZIPEX Elbow 16mm 1 EZIPEX Compression Sleeve 16mm At the end of the 16mm EZIPEX pipe

10 Page 10 of 25 Name Description Dimension EZIPEX Stopper 16mm: End: 17.9mm diameter 3.6mm thick Edge: 19.4mm diameter 2.4mm thick Overall: 6mm thick EZIPEX Compression Sleeve 16mm: 18mm diameter long 1mm thick 16mm EZIPEX GAS Stopper System EZIPEX Elbow System Dimension Dimension At the end of the 16mm pipe Stopper part: End: 17.9mm diameter 3.6mm thick Edge: 19.4mm diameter 2.4mm thick Overall: 6mm thick Compression Sleeve part: 18mm diameter long 1mm thick 90 degree joint of all EZIPEX pipes EZIPEX Elbow : long wide 12mm diameter with 23mm diameter edge. EZIPEX Compression Sleeve : 21.6mm diameter 22mm long 0.8mm thick Compression Sleeve Elbow connector

11 Page 11 of 25 Name Description EZIPEX GAS Elbow System Dimension Brass end cap EZIPEX Stopper System Dimension 90 degree joint of all pipes Elbow part: long wide 12mm diameter with 23mm diameter edge. Compression Sleeve part: 21.6mm diameter 22mm long 0.8mm thick 1 EZIPEX Stopper 1 EZIPEX Compression Sleeve At the end of the EZIPEX pipe EZIPEX Stopper: End: 22mm diameter 3.9mm thick Edge: 23.3mm diameter 2.9mm thick Overall: 6.8mm thick EZIPEX Compression Sleeve : Compression Sleeve Stopper 21.6mm diameter 22mm long 0.8mm thick Dimension At the end of the pipe Stopper part:

12 Page 12 of 25 Name Description End: 22mm diameter 3.9mm thick Edge: 23.3mm diameter 2.9mm thick Overall: 6.8mm thick Compression Sleeve: 21.6mm diameter 22mm long 0.8mm thick Brass screw end cap EZIPEX 19BP Elbow 16mm ½ BSPM 65mm long system At the end of the /EZIPEX 19BP Elbow 16mm ½ BSPM 65mm long Dimension Dimension Installation 25.2mm long 15.1mm wide 3.4mm thick 1 EZIPEX 19BP Elbow 16mm ½ BSPM 65mm long 1 EZIPEX Compression Sleeve 16mm At the end of the pipe EZIPEX 19BP Elbow 16mm ½ BSPM 65mm long: 20.9mm diameter 90mm long EZIPEX Compression Sleeve 16mm: 19BP Elbow Compression Sleeve 18mm diameter long 1mm thick The flange is fixed to the timber nogging with three screws. One end is connected to the pipe and the other end protruded through the separating element and is capped with a brass screw end cap.

13 Page 13 of 25 Name Description 19BP Elbow 16mm ½ BSPM 65mm long system EZIPEX Reducing Coupling 20-16mm system Reducing Coupling 20-16mm system Dimension Installation Dimension Installation Dimension At the end of the pipe at bottom penetration 19BP Elbow part: 20.9mm diameter 90mm long Compression Sleeve: 18mm diameter long 1mm thick The flange is fixed to the timber nogging with three screws. One end is connected to the pipe and the other end protruded through the separating element and is capped with a brass screw end cap. compression sleeve Joints between Ø and pipe before the pipe connecting EZIPEX 19BP Elbow 16mm ½ BSPM 65mm long system EZIPEX Reducing Coupling: 23.2mm diameter on the pipe side and 19mm diameter on the 16mm pipe side EZIPEX Compression Sleeve 16mm: 18mm diameter long 1mm thick EZIPEX Compression Sleeve : 21.6mm diameter 22mm long 0.8mm thick The reducer is inserted over the pipes and secured mechanically via crimping. Joints between Ø and Ø16mm pipe before the pipe connecting 19BP Elbow 16mm ½ BSPM 65mm long system EZIPEX Reducing Coupling part: 23.2mm diameter on the pipe side and 19mm diameter on the 16mm pipe side EZIPEX Compression Sleeve 16mm part: Reducing Coupling 16mm compression sleeve

14 Page 14 of 25 Name Timber Nogging Open clip with metal screw Installation Material Installation Installation Description 18mm diameter long 1mm thick EZIPEX Compression Sleeve part: 21.6mm diameter 22mm long 0.8mm thick The reducer is inserted over the pipes and secured mechanically via crimping the sleeve. Dressing pine, minimum 90mm deep 4 REFERENCED TEST PROCEDURES The timber noggings are installed in staggered configuration and fixed to the metal studs with two screws on each side. Securing the EZIPEX and pipe to the timber noggings in the wall cavity This report is prepared with reference to the requirements of AS and assessed in accordance with AS

15 Page 15 of 25 5 FORMAL ASSESSMENT SUMMARY Based on the discussion presented in this report, it is the opinion of this testing authority that if the specimen described in section 2 had been modified within the scope of section 3, it will achieve the performances as stated below when tested in accordance with the test method referenced in Section 4 and subject to the requirements of Section 7: Table 5.1 Pipe Penetrations in Single and Staggered Wall Systems (Refer Table 2 and Figure 1) Pipe Ø16mm GAS Ø16mm GAS Ø16mm GAS Ø16mm GAS GAS GAS Ø16mm Fitting through lining Max. height from floor none 1.2m Sealant around pipe Bostik Fireban One Gap between Service and Lining 5mm- 15mm Wall system 1, 2, 3 or 4 FRL - Wall system 5, 6, 7 or 8 -/60/60 -/90/90 none 0.3m -/60/60 -/90/90 none 2.8m -/60/60 -/90/60 Brass 19bp none 2.8m 1m -/60/60 -/90/60 -/60/60 -/90/60 Hilti CP none 0.3m 10-15mm -/60/60 -/90/90 611A none 1.2m -/60/60 -/90/90

16 Page 16 of 25 Table 5.2 Pipe Penetrations in Double Stud Wall Systems (Refer Table 3 and Figure 1) Pipe Ø16mm GAS Ø16mm GAS GAS Addition Fitting Max. height from floor none 2.8m Brass 19bp none 2.8m 6 DIRECT FIELD OF APPLICATION Sealant around pipe Bostik Fireban One Gap Between Service and Lining 5mm- 15mm Wall system 9, 10, 11 or 12 FRL Wall system 13, 14, 15 or 16 -/60/60 -/90/90 1m -/60/60 -/90/90 Hilti CP 611A 10-15mm -/60/60 -/90/90 The results of this assessment are applicable to penetrations in walls exposed to fire from either side. 7 REQUIREMENTS This report details the methods of construction, test conditions and assessed results that would have been expected had the specific elements of construction described herein been tested in accordance with AS Any further variations with respect to size, constructional details, loads, stresses, edge or end conditions, other than those identified in this report, may invalidate the conclusions drawn in this report. It is required that the supporting construction be otherwise tested or assessed to achieve the required FRL of the penetration seal in accordance with AS VALIDITY This assessment report does not provide an endorsement by Exova Warringtonfire Aus Pty Ltd of the actual products supplied. The conclusions of this assessment may be used to directly assess the fire resistance performance under such conditions, but it should be recognised that a single test method will not provide a full assessment of the fire hazard under all fire conditions. Because of the nature of fire resistance testing, and the consequent difficulty in quantifying the uncertainty of measurement, it is not possible to provide a stated degree of accuracy. The inherent variability in test procedures, materials and methods of construction, and installation may lead to variations in performance between elements of similar construction.

17 Page 17 of 25 The assessment can therefore only relate only to the actual prototype test specimens, testing conditions and methodology described in the supporting data, and does not imply any performance abilities of constructions of subsequent manufacture. This assessment is based on information and experience available at the time of preparation. The published procedures for the conduct of tests and the assessment of test results are the subject of constant review and improvement and it is recommended that this report be reviewed on or, before, the stated expiry date. The information contained in this report shall not be used for the assessment of variations other than those stated in the conclusions above. The assessment is valid provided no modifications are made to the systems detailed in this report. All details of construction should be consistent with the requirements stated in the relevant test reports and all referenced documents. 9 AUTHORITY 9.1 APPLICANT UNDERTAKINGS AND CONDITIONS OF USE By using this report as evidence of compliance or performance, the applicant(s) confirms that: to their knowledge the component or element of structure, which is the subject of this assessment, has not been subjected to a fire test to the Standard against which this assessment is being made, and they agree to withdraw this assessment from circulation should the component or element of structure be the subject of a fire test by a test authority in accordance with the Standard against which this assessment is being made and the results are not in agreement with this assessment, and they are not aware of any information that could adversely affect the conclusions of this assessment and if they subsequently become aware of any such information, agree to ask the assessing authority to withdraw the assessment. 9.2 GENERAL CONDITIONS OF USE This report may only be reproduced in full without modifications by the report sponsor. Copies, extracts or abridgments of this report in any form shall not be published by other organisations or individuals without the permission of Exova Warringtonfire Aus Pty Ltd. 9.3 AUTHORISATION ON BEHALF OF EXOVA WARRINGTONFIRE AUS PTY LTD Prepared by: Reviewed by: S. Hu K. Nicholls 9.4 DATE OF ISSUE 02/11/ EXPIRY DATE 30/11/2020

18 Page 18 of 25 APPENDIX A - SUMMARY OF SUPPORTING DATA A.1 TEST REPORT EWFA A.1.1 A Report Sponsor Boone & Willard Plumbing Pty Ltd, Unit 13, 5 Meridian Place, Bella Vista, NSW 2153, and A Cooks Plumbing Supplies, 27 Loyalty Road, North Rocks, NSW A.1.2 A A.1.3 Test Laboratory Exova Warringtonfire Aus Pty Ltd, Unit 2, Hammond Road, Dandenong, Victoria 3175, Australia. Test Date A The test was conducted on 25 th May A.1.4 A A.1.5 A A A.1.6 A A.1.7 A A A A A ID Test Standards prescribed AS Section 2 and 10 as appropriate for a wall system penetrated by services. General description of tested specimens The test assembly comprised a nominal 3000mm wide x 3000mm high x 130mm thick wall system with EZIPEX and pipes penetrated on the exposed and unexposed side. The wall specimen comprised 91mm thick steel stud framing clad with two different boards setting on the north and south side of the wall system. On the south side, the wall framing was clad with a single layer of 13mm Fyrchek on the exposed side and double layer on the unexposed side. On the north side, the framing was clad with a double layer of 13mm Fyrchek on the exposed side and single layer on the unexposed side. The wall system was penetrated by 24-off different EZIPEX and pipe penetrations which were protected by Bostik Fireban One mastic or Hilti Firestop Intumescent Sealant CP 611A. The EZIPEX pipes were supported with the timber noggings inside the wall cavity, Instrumentation The test instrumentation was in accordance with AS Test Results The ambient temperature was approximately 17 C at the start of the test and did not vary significantly during the test, The test duration was 90, At 78, a hole had become evident on top of the pipe penetration K located on the top section of the south side of separating element. At 78, it had become evident that the pipe K located at the bottom section of the north side of the separating element had sagged. Pipe material Performance of Services through plasterboard wall system Fitting (Bottom opening only) Wall lining layer Fire Non- Fire Wall penetrated Integrity Insulation A B C 16mm EZIPEX EZIPEX 16mm none 1 2 Fire side only none 1 2 Fire side only none 1 2 Fire side only

19 Page 19 of 25 ID D E F G H I J K L M N O P Q R S T U V W Pipe material 16mm EZIPEX EZIPEX 16mm 16mm 16mm EZIPEX EZIPEX 16mm EZIPEX 16mm EZIPEX EZIPEX 16mm 16mm Fitting (Bottom opening only) Wall lining layer Fire Non- Fire Wall penetrated none 1 2 Fire side only none 1 2 Fire side only ½ brass 1 2 Fire side only ½ brass 1 2 Fire side only ½ brass 1 2 Fire side only ½ brass 1 2 Fire side only ½ brass 1 2 Fire side only none 1 2 ½ brass 1 2 Non fire side only Non fire side only none 2 1 Fire side only none 2 1 Fire side only none 2 1 Fire side only none 2 1 Fire side only none 2 1 Fire side only ½ brass 2 1 Fire side only ½ brass 2 1 Fire side only ½ brass 2 1 Fire side only ½ brass 2 1 Fire side only ½ brass 2 1 Fire side only none 2 1 Non fire side only Integrity Insulation Failed at 88 on wall lining Failed at 85 on wall lining Failed at 71 on wall lining Failed at 86 on wall lining X ½ brass 2 1 Non fire side only

20 Page 20 of 25 APPENDIX B - ASSESSMENT OF SPECIFIC VARIATIONS B.1 PENETRATIONS ON SINGLE, STAGGERED SINGLE OR DOUBLE STUD WALL SYSTEMS B.1.1 B B.1.2 B B B B B Proposal The proposed construction for EZIPEX and pipes in plasterboard lined walls shall be as tested in EWFA , subject to the following variations; The wall systems shall be single stud, single staggered stud or double studs with same or greater depth than tested and the wall linings are summarised in Table 2. Wall cavity shall be fully insulated with Glasswool insulation with a minimum density of 10.5kg/m3. The minimum wall thickness shall be 130mm. Wall systems shall be exposed to exposure from either direction. The wall material can also be hollow core masonry wall with wall thickness of 130mm or greater. Penetration installation refers to Figure 1. Discussion Tested Specimens The test assembly tested in a full scaled test EWFA comprised a 130mm thick steel framing wall system with EZIPEX and pipes penetrated through either exposed side wall lining(s) or unexposed side wall lining(s) of tested wall specimen. The tested wall specimen clad with two different boards setting on the north and south side of the wall system. With reference to the test configuration in test EWFA , pipe services A to J were installed on the exposed side of south part of wall specimen whereas services K and L were installed on the unexposed side of south part of wall specimen. The south part wall framing was clad with single layer of 13mm Fyrchek on the exposed side and double layer of 13mm Fyrchek on the unexposed side. With reference to the test configuration in test EWFA , pipe services M to V were installed on the exposed side of north part of wall specimen whereas services W and X were installed on the unexposed side of north part of wall specimen. The north part wall framing was clad with double layer of 13mm Fyrchek on the exposed side and single layer of 13mm Fyrchek on the unexposed side. The above 24 pipe services consisted of Ø16mm and pipes and Ø16mm and GAS pipes installed at 0.3m, 1m, 1.2m and 2.8m respectively from the floor level and protected with either Bostik Fireban One sealant or Hilti Firestop Intumescent sealant CP 611 in the annular gap between pipe and aperture. Additional brass 19bp fittings were fitted to the pipes which were installed at 1m from floor level. The proposed penetrations are identical to the services that tested in EWFA and installed in a similar manner. The key variations of proposed penetrations by comparison with the tested 24 pipe penetrations in EWFA , are summarised below; Inclusion of EZIPEX pipes and with or without brass fitting entering non-fire side wall lining(s) only at different heights. Applicability of Hilti Firestop Intumescent sealant CP 611A to Ø16mm and Ø EZIPEX pipes. Inclusion various steel stud framed wall systems as summarised in Table 2.

21 Page 21 of 25 B B B B B B B B B B B B B Services at Different Heights entering Either Side of Wall System The proposed Ø16mm and pipes and Ø16mm and GAS pipes were all tested at 0.3m, 1.2m and 2.8m high and entered either single layer of 13mm Fyrchek plasterboard on fire side of south part of wall specimen or double layer of 13mm Fyrchek plasterboard on fire side of north part of wall specimen tested in EWFA When tested, the services all maintained integrity performance of 90 without cracks, fissures or gap formation during the test duration. With reference to EWFA , EZIPEX and pipes installed at 0.3m and 1.2 high on fire side of both south part and north part of wall specimen maintained insulation performance of 90. With reference to EWFA , EZIPEX and pipes installed at 2.8m high on fire side of south part maintain insulation performance of 90 whereas 16mm and PEX pipes installed at 2.8m high on fire side of north part failed insulation at 85 and 71 respectively. The 16mm and pipes on fire side of north part wall though maintained insulation performance of 90. Upon inspection of the temperature measurements on unexposed side wall lining of service M and N, it was considered the sharply raise of temperature on the unexposed wall lining was occurred after the fire side lining(s) became parts and fell off, the wall cavity insulation started to catch on fire. In addition, the pressure at the penetrations located at 2.8m from floor was more than twice higher than the ones at 0.3m and 1.2m, hence the hot gases in the furnace is likely to convey more heat by convection to the top section of wall hence fail the insulation performance earlier. Service K and L comprised pipes which were installed on the non-fire side of south wall part, 0.3m, 1.2m and 2.8m away from floor level. Service W and X comprised pipes which were installed on the non-fire side of north wall part, 0.3m, 1.2m and 2.8m away from floor level. When tested, the four services all maintain integrity performance of 90 without cracks, fissures or gap formation during the test duration, the pipes exclude the one with additional brass fitting also maintain insulation performance of 90. The above test results demonstrate the Fireban One sealant seal around the pipe penetration is cable to maintain the integrity performance for at least 90. By comparison with the temperature measurements on the unexposed side wall lining of pipe on fire side and temperature measurements on unexposed side wall lining and pipe penetration of pipe on non-fire side, it is observed, the temperature raise of unexposed side wall lining followed similar trend during the test duration, and the temperature on the pipe on the unexposed side was lower than the plasterboard lining until the time when fire side linings fell off from framing. The significance of above test results demonstrates the presence of pipes on the unexposed side of wall specimen is unlikely to introduce any weakness to the integrity and insulation performance for at least 90. The proposed Ø16mm and Ø16mm and pipe though are not tested entering the non-fire side wall lining of wall system, based on the performance of pipe tested, it is reasonable expected the proposed pipes on non-fire side of wall system would at least maintain the similar performance to the ones installed on the fire side for up to 90. B The proposed wall systems 5 and 6 are as tested in EWFA , which clad with single layer of 13mm thick fire grade plasterboard on each and double layer of 13mm thick fire grade plasterboard on the other side. In light of the above, it is considered the proposed pipe penetration will maintain integrity performance and insulation performance summarised in table 5.1 when installed on wall systems 5 and 6 when tested in accordance with AS

22 Page 22 of 25 B B B B B B B B B B B B B Services with Brass Fitting entering Either Side of Wall System The proposed Ø16m and pipes and Ø16mm and GAS pipes were all tested with additional brass fitting 19bp at 1m high entered either single layer of 13mm Fyrchek plasterboard on fire side of south part of wall specimen or double layer of 13mm Fyrchek plasterboard on fire side of north part of wall specimen tested in EWFA When tested, the services all maintained integrity performance of 90 without cracks, fissures or gap formation during the test duration. The services all maintain insulation performance of 90. Service L and X comprised pipes fitted with additional brass 19bp were installed on the non-fire side of south and north part of wall system. When tested, the service L maintained integrity performance of 90 and failed insulation performance at 88 when the maximum temperature measured on pipe penetration exceed the maximum temperature rise limit of 180K. When tested, service X maintained integrity and insulation performance of 90 with no sign of impending integrity and insulation failure during the test duration. Upon inspection of the temperature measurements on unexposed side wall lining and pipe of Service L, it was considered the sharply raise of temperature on pipe was occurred after the fire side lining(s) became parts and fell off, the wall cavity insulation started to catch on fire. The presence of 26mm deep Fireban One sealant though prevented gap formation around pipe penetration is likely to close the opening formed by the brass fitting. The significance of above test results demonstrates the presence of pipes on the unexposed side of wall specimen is unlikely to introduce any weakness to the integrity performance up to 90 though insulation performance up to 60 The proposed Ø16mm and Ø16mm and pipe though are not tested entering the non-fire side wall lining of wall system, based on the behaviour of pipe with brass fitting tested, it is reasonable expected the proposed pipes on non-fire side of wall system would at least maintain the similar integrity performance to the ones installed on the fire side for up to 90 whereas lower the insulation performance to be 60. The proposed wall systems 5 and 6 are as tested in EWFA , which clad with single layer of 13mm thick fire grade plasterboard on each and double layer of 13mm thick fire grade plasterboard on the other side. In light of the above, it is considered the proposed pipe penetration with additional brass fitting shall maintain integrity performance and insulation performance summarised in table 5.1 when installed on wall system 5 and 6 when tested in accordance with AS Services sealed with Hilti Firestop Intumescent Sealant CP 611A Service E and Q comprised pipes installed on the fire side of south and north part of wall system and the annular gap between pipe and aperture was sealed with Hilti Firestop Intumescent sealant CP 611A. When tested, the service E maintained integrity performance of 90 and insulation performance of 90. When tested, the service Q maintained integrity performance of 90 and failed insulation performance at 86 when the maximum temperature measured on the unexposed wall lining exceed the maximum temperature rise limit 180K. B By comparison with the temperature measurements on the unexposed side wall lining of pipes sealed with Fireban One sealant and Hilti Intumescent sealant CP 611A (Service D and E on south wall section, and Service P and Q on north wall section) respectively, it was observed the cavity temperature and temperature measured on the unexposed side wall lining of services with different sealant followed a very similar trend and the unexposed.

23 Page 23 of 25 B B B B B B B B B B B B The significance of above test results demonstrates the substitution of annular gap sealant Fireban One sealant with proposed Hilti Firestop Intumescent sealant CP 611A is unlikely to introduce any weakness to the integrity and insulation performance up to 90. The proposed Ø16mm and Ø16mm and pipe though are not tested protected with Hilti Firestop Intumescent sealant CP 611A, based on the behaviour of pipe with Hilti CP 611A sealant tested, it is reasonable expected the proposed pipes with Hilti CP 611A would at least maintain the similar integrity performance to the ones protected with Fireban One sealant on either side of wall system. The proposed wall systems 5 and 6 are as tested in EWFA , which clad with single layer of 13mm thick fire grade plasterboard on each and double layer of 13mm thick fire grade plasterboard on the other side. In light of the above, it is considered the proposed pipe penetration with Hilti Firestop Intumescent sealant CP 611A shall maintain integrity performance and insulation performance summarised in table 5.1 when installed on either side of wall system 5 and 6 when tested in accordance with AS Performance of Services in Various Steel Stud framed Wall Systems Wall System 1, 2, 3 and 4 The proposed wall system 1 comprises single layer of 13mm thick fire grade plasterboard on each side of steel framing with minimum wall thickness of 130mm thick. When the construction is exposed to heating, the exposure to the seal around the pipe penetration on fire side would be similar to the south part of wall specimen tested in EWFA With reference to the south part of wall specimen tested in EWFA which the wall framing clad with single layer of 13mm thick fire grade plasterboard on the fire side and double layer of 13mm fire grade plasterboard on the non-fire side. Upon inspection of the cavity temperature measurements, it was observed the fire side 13mm fire grade plasterboard started to fall off around 30 and the temperature raise recorded on the unexposed side of non-fire side wall lining did increase dramatically between 30 and 60 due to the presence of wall cavity insulation material. It is therefore expected the insulation performance of pipe penetration is governed by the falloff time of fire side plasterboard lining and the conduction of heat through the wall cavity insulation. Reducing the non-fire side wall lining to be single layer of 13mm thick fire grade plasterboard would tend to increase the unexposed side temperature of non-fire side lining. Hence it is reasonable and conservative expected the unexposed side temperature would increase twice if the non-fire side wall lining is reduced from double layer of 13mm thick to be single layer. With reference to all the penetrations on the south part of wall specimen tested in EWFA , apart from the pipe with brass fitting on the non-fire side wall lining that the failure of insulation performance was occurred on pipe and was due to the unclose pipe penetration. The maximum temperatures measured any other locations were below 100 C at 60. Based on the above, it is considered the proposed penetrations will maintain integrity performance of 60 and insulation performance of 60 if installed on either side of wall system 1. The proposed wall systems 2 and 3 comprises single layer of 13mm thick fire grade plasterboard on one side and one layer of 13mm thick fire grade plasterboard and one layer of 10mm or 13mm non-fire grade plasterboard on the other side. B It is expected the 10mm standard core would remain in place for 5 to 10 and with reference to the discussion for wall system 1, the integrity and insulation performance of proposed penetrations are not considered to be detrimentally affected by including additionally layer of 10mm or 13mm non-fire grade plasterboard on either unexposed side or unexposed side.

24 Page 24 of 25 B B B B B B B B B Based on the discussion presented for wall system 1, it is considered the performance for proposed penetrations on either side of wall system 2 and 3 would be at least the same as the performance for on System 1. The proposed wall system 4 comprises single layer of 16mm thick fire grade plasterboard on each side of wall framing. It is expected the 16mm thick fire grade plasterboard is likely to stay in place on the fire side longer than that tested 13mm thick fire grade plasterboard and hence will not introduce any foreseeable integrity and insulation weakness to the performance of pipe penetrations installed of at least 60. Based on the discussion presented for wall system 1, it is considered the performance for proposed penetrations on either side of wall system 4 would be at least the same as the performance for on System 1. In light of the above, the proposed construction is therefore expected to maintain integrity and insulation performance of 60 when tested in accordance with AS Wall System 7 and 8 The type of lining will determine how much shielding the penetration will receive. The proposed wall systems 7 and 8 comprises double layers of 13mm thick or 16mm fire grade plasterboard on each side of wall framing. With reference to the discussion presented for wall system 4 and 5, it is expected the integrity and insulation performance of proposed penetrations are not considered to be detrimentally affected by including additional layer of 13mm thick fire grade plasterboard nor increasing the wall lining thickness. In light of the above, it is considered the proposed pipe penetration will maintain integrity performance and insulation performance summarised in table 5.1 when installed on either side of wall system 7 and 8 when tested in accordance with AS B.2 PENETRATIONS ON VARIOUS DOUBLE STUD WALL SYSTEMS ONLY B.2.1 B B.2.2 B B Proposal The proposed construction for PEX and PEX-AL pipes in plasterboard lined walls shall be as tested in EWFA , subject to the following variations; The wall systems shall be double studs only and each steel stud depth shall be minimum 90mm. The wall linings are summarised in Table 2. Wall cavity shall be fully insulated with Glasswool insulation with a minimum density of 10.5kg/m3. The minimum wall thickness shall be 164mm. Wall systems shall be exposed to exposure from either direction. Penetration installation refers to Figure 1. Discussion The insulation performance of the penetration is governed by the fall-off time of fire side plasterboard lining and the conduction of heat through the cavity insulation. With reference to test EWFA , it is observed the earliest failure of insulation performance of penetration (Service N) was occurred at 71 and the unexposed side temperature measured on the non-fire side wall lining at 90 was 271 C. B B B The proposed wall system comprises double stud wall framing and hence the wall cavity insulation thickness is double as well. There will be a significantly improved insulation performance due to the increased cavity insulation thickness compares to the tested configuration in EWFA As discussed, the dramatic raise of temperature on the unexposed wall lining was occurred after the fire side lining(s) became parts and fell off, the wall cavity insulation started to catch

25 Page 25 of 25 B B on fire. Upon inspection of the unexposed temperature measurement chart of Service N, it was noted before the wall cavity insulation burned away at 60, the unexposed side temperature recorded on the non-fire wall lining was only 102 C Based on the above observation, it is considered the double the cavity insulation material is likely to delay the dramatic raise of temperature on the unexposed side for another 15 minute margin. Based on the above, it is considered the proposed pipe penetration will maintain integrity performance and insulation performance summarised in table 5.2 when installed on either side of double stud wall systems when tested in accordance with AS