Under-Flame Fire Tests on Timber Decks

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CMMT-2007-049 Under-Flame Fire Tests n Timber Decks Reprt t Bushfire CRC L. Macinde A.

1 CMMT Under-Flame Fire Tests n Timber Decks Reprt t Bushfire CRC L. Macinde A. Sargeant P. A. Bwditch CSIRO - Manufacturing and Materials Technlgy Fire Science and Technlgy Labratry February 2007 This reprt has been prepared fr the Bushfire CRC. It cannt be cited in any publicatin withut the apprval f CSIRO. Please address all enquiries t: The Chief CSIRO Manufacturing & Materials Technlgy P.O. Bx 56, Highett, Victria 3190

2 CMMT : Under-Flame Fire Tests n Timber Decks ii DISTRIBUTION LIST LM (1) AS (1) PB (1) JL (1) CRC (2) File (Original) 2007 CSIRO T the extent permitted by law, all rights are reserved and n part f this publicatin cvered by cpyright may be reprduced r cpied in any frm r by any means except with the written permissin f CSIRO.

3 CMMT : Under-Flame Fire Tests n Timber Decks iii Executive Summary In ttal 13 timber decks were accessed using the: American Urban Wildland Interface Building Test Standard 12-7A-5, Fire Resistive Standards fr Decks and Other hrizntal Ancillary Structures, Part A Under-flame Test. t determine their perfrmance and t btain sme data that culd assist with future tests t be perfrmed based n the prpsed Draft AS Bushfire Test Methd. The cnclusins fund were: Typical Australian dmestic timber decking cnsisting f nminal 20mm thick bards did nt pass the American Urban Wildland Interface Building Test Standard 12-7A-5, Fire Resistive Standards fr Decks and Other hrizntal Ancillary Structures, Part A Under-flame test. The plinth detail at the wall has a majr influence n the heat lad n the wall frm the burning deck. The test prcedure used was sensitive t the strength f the pilt flame used n the main burner. Cmparative data was btained t be used in future wrk lking at similar testing based n the AS Bushfire test methd.

4 CMMT : Under-Flame Fire Tests n Timber Decks iv Mdificatins t the decks t try and imprve their perfrmance prved incnclusive due t alteratins t the test cnditins.

5 CMMT : Under-Flame Fire Tests n Timber Decks v Cntents EXECUTIVE SUMMARY iii 1. INTRODUCTION TEST PROCEDURE TEST RESULTS CONCLUSIONS REFERENCES APPENDIX A MATERIAL PROPERTIES APPENDIX B TEST RECORD SHEETS... 25

6 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 6 1. Intrductin This reprt frms part f the wrk undertaken fr the Bushfire CRC t reduce the risk f building lss and injuries t ccupants due t bushfires. It investigates the perfrmance f sme typical Australian timber decking tested t the: American Urban Wildland Interface Building Test Standard 12-7A-5, Fire Resistive Standards fr Decks and Other hrizntal Ancillary Structures, Part A Under-flame test. The aim was t: Determine if typical Australian dmestic timber decking wuld pass the requirements in the American Standard. Obtain a greater understanding f hw decks behave in fires. Obtain sme data n the perfrmance f the decks that culd assist with future tests t be perfrmed based n the prpsed Draft AS Bushfire Test Methd. A ttal f 13 decks were tested cvering a range f timber species and bard gemetries. Sme variatins t the standard were used t determine the effect n the decking perfrmance f changing the type f jist, gap between the bards and the material cnditining.

CMMT-2007-049: CMMT-2007-049: Under-Flame Fire Tests n Timber Decks 7 2. Test Prcedure 2.

The standard required the cnstructin f a simple frame n which t supprt the deck test specimen (see Figure 2-1), abve a 300 x

Bth the sandbx burner and exhaust hd were available as part f the rm fire test facilities (cnducted t ISO 9705 [3]) at the Fire

The size and psitin f the fire beneath the deck simulates the effect f abut 1 kg f paper trash burning.

7 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 7 2. Test Prcedure 2.0 General The tests were cnducted using the American standard 12-7A-5 Part A Under-flame test [1]. The standard required the cnstructin f a simple frame n which t supprt the deck test specimen (see Figure 2-1), abve a 300 x 300mm sandbx burner prducing a 80 kw fire. The frame is placed under an exhaust hd with instrumentatin fr measuring heat release. Bth the sandbx burner and exhaust hd were available as part f the rm fire test facilities (cnducted t ISO 9705 [3]) at the Fire Science and Technlgy Labratries at Highett in Melburne. The size and psitin f the fire beneath the deck simulates the effect f abut 1 kg f paper trash burning. The height f the deck is set s the tp f the flames flw up thrugh the gaps in the decking. The deck is nly expsed t the fire fr 3 minutes but bserved fr up t 40 minutes afterwards. Figure 2-1 Frame fr Supprting Deck (a piece f cement sheet is sitting n the steel channels where the deck is t be placed)

8 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks Summary f the Test Requirements The fllwing infrmatin summarises the test requirements used during the tests. Sme minr changes were made t the standard requirements t take int accunt available jist material and cnditining facilities. Test Specimen (see Figure 2-2): Timber deck 700mm (jist directin) x 600mm (decking bard length) 2 x Radiata pine 150mm x 45mm jists spaced 405mm apart (360mm gap between jists) Decking bards cnnected t each jist by a single 65mm lng screw with 5mm gap between bards. At the frnt end, the jist and the decking bards are flush while at the wall end the last decking bard verlaps the edge f the jist by 25mm. Test frame (see Figure 2-3): Framing fr hlding the deck 690mm abve a 300mm x 300mm sand bx burner measured t the underside f the decking bards. Open frnt and lined sides and back with 200mm gap at the base t allw fr air flw t the burner. The height f the sides are apprximately the same level as the tp f the deck. The height f the back is 2400mm. In plan the frame is U shaped with dimensins apprximately 700mm x 700mm. Steel channels supprt the jists alng the bttm edge leaving nly the inside face f the jist and the underside f the decking bards between the jists expsed t the flames. A nn cmbustible plinth bard the same depth as the jist and fastened t the back wall prvides a supprt n which the 25mm verlap n the last decking bard can rest.

CMMT-2007-049: CMMT-2007-049: Under-Flame Fire Tests n Timber Decks 9 Test Prcedure: Test specimens are cnditined at 45 C and 18% Relative Humidity (RH) fr at least 1 week prir t testing (~5% EMC).

9 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 9 Test Prcedure: Test specimens are cnditined at 45 C and 18% Relative Humidity (RH) fr at least 1 week prir t testing (~5% EMC). The American standard requires 6% EMC. Fr the first 3 minutes f the test the specimens are expsed t a 80 kw sandbx burner fire. The burner is then turned ff and the specimen bserved fr up t 40 minutes. T pass, 3 replicates f the specimen must all have an absence f: sustained flaming r glwing cmbustin at the end f the 40minute perid structural failure f any deck bard and peak heat release < 270 kw/m 2 (i.e. 115 kw based n a 700mm x 610mm deck area). Figure 2-2 Typical Timber Deck Test Specimen

10 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 10 Figure 2-3 Under-Flame Test Rig

11 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks Test Results 3.0 Specimens Tested Only a limited range f decks culd be tested due the time restraints n using the labratry. In ttal 13 decks f different cnfiguratins were cnstructed as shwn in Table 3-1. The samples with significant variatins frm the standard requirements (marked in bld in the table) were: 5, 8 and 10 Gap f 10mm 11, 12 and 13 Steel jists 12 and 13 Cnditined at 23º C and 50% RH The species were selected as representative f the types f timbers used fr decking in Australia. Radiata Pine instead f CCA Treated Radiata Pine was used fr health and safety reasns. Initially decks numbered 1 t 10 were cnstructed and then tested n the same day t reduce any variability due t labratry cnditins. Fllwing these tests a secnd series f 3 decks (Ns 11 t 13) were cnstructed and tested. In the later decks variatins were made t try and imprve the decks perfrmance. These include: Replacement f the timber jists with steel C sectins Change f cnditining envirnment t 23º C and 50% RH and The use f tapered instead f square edges n the decking bards

12 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 12 Table 3-1 Samples Tested fr First Series f Tests Deck N. Deck Timber 1 Radiata Pine 2 White Cypress Pine 3 Jarrah 4 Merbau 5 Merbau 6 Merbau Sptted Gum Sptted Gum Sptted Gum Sptted Gum Sptted Gum Sptted Gum Sptted Gum Jist Material Radiata Pine Radiata Pine Radiata Pine Radiata Pine Radiata Pine Radiata Pine Radiata Pine Radiata Pine Radiata Pine Radiata Pine Width (mm) Deck Bard Thickness (mm) Edge Prfile Gap (mm) square square square square square square square square square square 10 Steel square 5 Steel square 5 Steel tapered 5 Cnditining 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 45º C 18% RH 23º C 50% RH 23º C 50% RH

13 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks First Series f Tests (Ns 1 t 10) The initial tests were cnducted at the specified burner utput f 80 kw. Hwever at this level it became bvius that all f the decks wuld fail bth the heat release and structural criteria (see Figure 3-1). As a result, fur f the initial 10 decks (Ns 3,5,6 and 8, see Table 3-2) were tested at either 60 kw r 70 kw t determine at what level they might pass. Hwever all fur decks failed the heat release criteria having peak heat releases greater than 115 kw (i.e. 270 kw/m 2 and assuming a 700mm x 610mm deck area) while the tw decks tested at 70 kw failed the structural requirement as well. The peak heat release values frm the tests are given in Table 3-2. Phts f the 4 test specimens tested at the reduced burner utput are shwn in Figure 3-2 and Figure 3-3. The test recrd sheets cntaining plts f the heat release are given in Appendix B. Sme bservatins nted were: The Radiata Pine deck perfrmed the wrst having the highest peak heat release and pst burner heat release f 250 kw and 60 kw respectively. Als, althugh the deck was nly allwed t burn fr 6 minutes pst burner, it was bvius that it wuld have cmpletely burnt ut if it had been allwed t cntinue t burn. The White Cypress Pine deck which had 30mm thick bards cmpared with the 20mm used fr the majrity f decks, shwed that thicker bards perfrmed better in terms f the structural criteria. The plinth detail has a majr effect n the cmbustin f the decking bard next t the wall. In all tests the gap between the plinth and the decking bard acted as a chimney fr the flames t ignite the bard then as a heat trap t incubate the fire. This resulted in a high heat lad n the wall adjacent t the deck as shwn in Figure 3-4. The heat frm the burning pine jists increase the cmbustin n the adjacent decking (see Figure 3-5).

CMMT-2007-049: CMMT-2007-049: Under-Flame Fire Tests n Timber Decks 14 Figure 3-1 A Typical Deck after Testing Table 3-2 Peak Heat Release Values fr the First Series f Tests Deck N.

14 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 14 Figure 3-1 A Typical Deck after Testing Table 3-2 Peak Heat Release Values fr the First Series f Tests Deck N. Deck Timber Width (mm) Deck Bard Thickness (mm) Gap (mm) Burner Output (kw) Peak Heat Release (kw) 1 Radiata Pine White Cypress Pine Jarrah Merbau Merbau Merbau Sptted Gum Sptted Gum Sptted Gum Sptted Gum

15 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 15 (a) Deck N 6 (b) Deck N 8 Figure 3-2 Decks tested with 70kW burner

16 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 16 (a) Deck N. 3 (b) Deck N. 5 Figure 3-3 Decks tested with 60kW burner

CMMT-2007-049: CMMT-2007-049: Under-Flame Fire

17 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 17 Figure 3-4 Plinth detail causes severe heat lad n adjacent wall Figure 3-5 Heat frm the burning pine jists impinging n the decking

CMMT-2007-049: CMMT-2007-049: Under-Flame Fire Tests n Timber Decks 18 3.

jists, a 23º C and 50% RH cnditin envirnment and, in ne case, a 30 tapered edged bard.

18 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks Secnd Series f Tests (Ns 11 t 13) The secnd series f tests lked at imprving the perfrmance f the decks by replacing the bard next t the wall with a steel sectin, using steel jists, a 23º C and 50% RH cnditin envirnment and, in ne case, a 30 tapered edged bard. The later change riginating frm the burn pattern evident in the first series f tests where the edge f the bards burn in a tapered pattern as shwn in Figure 3-6. A cmparisn f the tapered bard used and a previusly burnt square edged bard is shwn in Figure 3-7. Figure 3-6 Tapered burn pattern n edge f decking bards Figure 3-7 Cmparisn f tapered edge and burnt square edged bard

19 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 19 The reasns fr selecting these changes were: T prevent the detail arund the plinth causing a high heat lad n the wall by replacing the last bard with a steel sectin (see Figure 3-8). During the first series f tests the pine jists were bserved t add significantly t the heat lading n the decking bards. The easing f the cnditining requirements frm 45 C and 18% RH t 23º C and 50% RH is in line with the recmmendatins in the Draft AS Bushfire Test Methd. Using a tapered edge bard may reduce the heat cncentratin in the gap between the bards. The peak heat release results f the tests are given in Table 3-3. After test phts f the decks are shwn in Figure 3-8. While the results indicate a large imprvement in the perfrmance, a clse analysis indicates that the test cnditins were different between the first and secnd series f tests. An analysis f the data including vide recrds indicates that the strength f the pilt flame was different between the tw series f tests. The secnd series f tests was cnducted with a strnger pilt flame resulting in sme f the main burner flame being blwn ut the frnt f the deck and reducing its impact. Hence the results are nt reliable. Due t limited access t the lab the tests culd nt be repeated. Hwever it is prpsed t cver these cmparative tests in future wrk based n the AS test prcedure invlving the use f a radiant panel test rig.

20 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 20 Table 3-3 Peak Heat Release Values fr Secnd Series f Tests Deck N. Deck Timber 11 Sptted Gum Steel 12 Sptted Gum Steel 13 Sptted Gum Steel Jist Cnditining Edge 45º C 18% RH 23º C 50% RH 23º C 50% RH Burner Output (kw) Peak Heat Release (kw) Square Square Tapered

CMMT-2007-049: CMMT-2007-049: Under-Flame Fire Tests n Timber Decks 21 Figure

21 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 21 Figure 3-8 Secnd Series Timber Deck Test Specimens (frm tp: Ns 11,12 & 13) After Testing

22 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks Cnclusins The fllwing cnclusins were fund: Typical Australian dmestic timber decking cnsisting f nminal 20mm thick bards did nt pass the American Urban Wildland Interface Building Test Standard 12-7A-5, Fire Resistive Standards fr Decks and Other hrizntal Ancillary Structures, Part A Under-flame test. The plinth detail at the wall has a majr influence n the heat lad n the wall frm the burning deck. The test prcedure used was sensitive t the strength f the pilt flame used n the main burner. Cmparative data was btained t be used in future wrk lking at similar testing based n the AS Bushfire test methd. Mdificatins t the decks t try and imprve their perfrmance prved incnclusive due t alteratins t the test cnditins.

23 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks References 1. American Urban Wildland Interface Building Test Standard 12-7A-5, Fire Resistive Standards fr Decks and Other hrizntal Ancillary Structures, Part A Under-flame Test. 2. Standards Australia (2006) Draft AS Methds fr fire tests n building materials, cmpnents and structures, Part 8.1: Test n elements f cnstructin fr building expsed t radiant heat and small flaming surces during bushfires. (shrt title: Bushfire test methd Medium t Severe categries), Standards Australia, Sydney. 3. Fire Tests - Full-Scale Rm Test fr Surface Prducts, ISO 9705 Internatinal Organizatin fr Standardizatin, Geneva, Switzerland, (1993).

24 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 24 APPENDIX A Material Prperties Table A.1 Typical Prperties f Timbers Cnditined t EMC at 23 C and 50% RH Species Density (kg/m³) MC (%) Radiata Pine Cypress Pine Jarrah Merbau Sptted Gum Table A.2 Typical Prperties f Timbers Cnditined t EMC at 45 C and 18% RH Species MC (%) Radiata Pine 4.5 Cypress Pine 4.5 Jarrah 5.0 Merbau 5.0 Sptted Gum 5.5

25 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 25 APPENDIX B Test Recrd Sheets

26 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 26 C S I R O Client Title Test Cde J1337 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 1 10/Mar/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Radiata Pine Cmment Fire Extinguished at 800s Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

27 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 27 C S I R O Client Title Test Cde J1328 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 2 10/Mar/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material White Cypress Pine Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

28 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 28 C S I R O Client Title Test Cde J1335 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 3 10/Mar/06 A M Fractin H20 60 kw Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Jarrah Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

29 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 29 C S I R O Client Title Test Cde J1329 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 4 10/Mar/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Merbau Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

30 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 30 C S I R O Client Title Test Cde J1331 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 5 10/Mar/06 A M Fractin H20 40 kw + 60kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Merbau Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

31 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 31 C S I R O Client Title Test Cde J1332 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 6 10/Mar/06 A M Fractin H20 70 kw Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Merbau Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

32 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 32 C S I R O Client Title Test Cde J1330 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 7 10/Mar/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Sptted Gum Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

33 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 33 C S I R O Client Title Test Cde J1333 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 8 10/Mar/06 A M Fractin H20 70 kw Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Sptted Gum Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

34 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 34 C S I R O Client Title Test Cde J1336 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 9 10/Mar/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Sptted Gum Cmment Fire Extinguished at 800s Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

35 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 35 C S I R O Client Title Test Cde J1327 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 10 10/Mar/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Sptted Gum Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

36 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 36 C S I R O Client Title Test Cde J1369 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 11 12/May/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Sptted Gum Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

37 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 37 C S I R O Client Title Test Cde J1367 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 12 12/May/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Sptted Gum Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

CMMT-2007-049: CMMT-2007-049: Under-Flame Fire Tests n Timber Decks 38 C S I R O Client Title Test Cde J1368 Exist. Calib.

3190, Australia Phne: (03) 9252 6000 Fax: (03) 9252 6244 Bushfire CRC Under Deck Flame Test - 12-7A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number

38 CMMT : CMMT : Under-Flame Fire Tests n Timber Decks 38 C S I R O Client Title Test Cde J1368 Exist. Calib. Factr 1 Manufacturing & Infrastructure Technlgy Fire Science and Technlgy Labratry Graham Rad, (PO Bx 56), Highett, Vic. 3190, Australia Phne: (03) Fax: (03) Bushfire CRC Under Deck Flame Test A-5 Burner Output (kw) Sampling Interval (s) Ignitin Time (s) TEST RECORD SHEET Test Number Date N 13 12/May/06 A M Fractin H20 80kW Av Flw Rate (m3/s) Baseline Interval (s) Peak Heat Release (kw) Material Sptted Gum Cmment Heat Release Rate - Time Heat Release Rate (kw) Time (s) Under Deck Flame Test trd

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