Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Report Number BTC 77F A FIRE RESISTANCE TEST ON A LOADBEARING TIMBER JOIST FLOOR INCORPORATING 4mm x 7mm x 47mm SOLID JOISTS PROTECTED BY A DOUBLE LAYEROF.mmGYPROC FIRELINE INCORPORATINGNINEDOWNLIGHTERS, CONDUCTEDINACCORDANCEWITH BS 47: PART : 87: CLAUSE 7. Test Date: 8 March th www.btconline.co.uk Customer: KSR Lighting Ltd Unit 4 The Nelson Centre Portfield Road Portsmouth Hampshire PO SF BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com A FIRE RESISTANCE TEST ON A LOADBEARING TIMBER JOIST FLOOR INCORPORATING 4mm x 7mm x 47mm SOLID JOISTS PROTECTED BY A DOUBLE LAYER OF.mm GYPROC FIRELINE INCORPORATING NINE DOWNLIGHTERS, CONDUCTED IN ACCORDANCE WITH BS 47: PART : 87: CLAUSE 7. TABLE OF CONTENTS... 4. FOREWORD 4 REPORT AUTHORISATION 4 TEST REPORT AMENDMENTS TEST CONSTRUCTION 4. 4. 4.. 4.. Description of Construction Test Construction Drawings 7 Horizontal Cross Section 7 Exposed Face Elevation 8. TEST MATERIALS....4.. Gyproc FireLine Joists Chipboard Tongue and Groove Flooring Fasteners Miscellaneous Components Downlighters. 7. 8.. TEST PROCEDURE TEST RESULTS LIMITATIONS TEST DATA....4 Observations Furnace Temperature Graph Furnace Pressure Graph 7 Unexposed Face Temperature Graph 8 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com...7.8... Unexposed Face Layout Unexposed Face Downlighter Layout Unexposed Face Standard Five Temperature Data Additional Unexposed Face Temperature Data Internal Temperature Data 7 Specimen Vertical Deflection PHOTOGRAPHS Downlighter KSRFRD prior to installation...4 Exposed face prior to test 7 Unexposed face prior to test 8 Unexposed face at hour, minutes BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. FOREWORD This test report details a fire resistance test conducted on a full scale horizontal loaded timber joist floor. The test specimen was installed by Alltone Limited. The construction of the specimen took place on the and 7 March. The Building Test Centre played no role in the design or selection of materials comprising the test specimen. The test was conducted on the 8 March. th Because of the nature of fire resistance testing and the consequent difficulty in quantifying the uncertainty of measurement of fire resistance, it is not possible to provide a stated degree of accuracy of the result.. REPORT AUTHORISATION Report Author Authorised by P.P. Liam Woodford Technologist Paul Miller BSc. (Hons.) Fire Test Manager The Building Test Centre will not discuss the content of this report without written permission from the test sponsor. The Building Test Centre retains ownership of the test report content but authorises the test sponsor to reproduce the report as necessary in its entirety only. BTC 77F: Page 4 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. TEST REPORT AMENDMENTS Page Amendments Date BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com 4. TEST CONSTRUCTION 4. Description of Construction The specimen was constructed in a refractory concrete lined steel restraint frame having an opening of 4mm long x mm wide. 7mm x 47mm C grade softwood joists were placed, nominally, at mm centres, spanning 4mm length of the test frame. Fulldepth noggings were fixed at each end of the joists (within the test aperture) with inch nails. 8mm x 8mm noggings were fixed between the joists to coincide with the outer layer board joints using inch nails. The tops of the joists were covered with a walking surface of mm tongue and groove chipboard flooring (nominally mm long x mm wide) which was fixed using mm drywall timber screws at mm centres. The underside of the floor was lined with a double layer of.mm Gyproc FireLine, (nominally mm long x mm wide). The inner layer was fixed using mm Drywall timber screws at mm centres. The outer layer was fixed using mm Drywall timber screws at mm centres. All board joints were staggered between layers. All joints were finished using Gyproc Joint Tape and Joint Filler. All screw heads were spotted using Gyproc Joint Filler. Nine downlighters were incorporated into the ceiling. A mm diameter hole was cut into the plasterboards to accommodate all of the downlighters. Downlighters KSRFRD were positioned at F, G, H, I and J. Four additional downlighters were positioned at A, B, C and D. See figure 7 for the positions of each downlighter. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com 4. Test Construction Drawings 4.. Horizontal Cross Section mm Drywall Timber Screws (mm centres) mm T&G Chipboard Flooring (nominally mm x mm) Timber Joist 7mm x 47mm C grade softwood joist mm Drywall Timber Screws (mm centres) Gyproc.mm TE FireLine mm Drywall Timber Screws (mm centres) Figure Horizontal cross section BTC 77F: Page 7 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com 4.. Exposed Face Elevation Figure Exposed Face Elevation The descriptions of individual components making up the test specimen were provided by the customer and were checked for accuracy wherever possible. BTC 77F: Page 8 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. TEST MATERIALS. Gyproc FireLine i) Nominally, mm (long) x mm (wide) x.mm (thick), Gyproc FireLine manufactured and supplied by. Measured surface density: Measured thickness: Board identification numbers: Measured moisture content:.kg/m.mm 7: 7: 7:7.4% The surface density and board thickness were calculated using a selection of boards used in the test specimen. The moisture content of plasterboard was determined using samples dried to constant weight in an oven at C. Material dimensions were measured by The Building Test Centre.. Joists ii) Nominally, 4mm (long) x 7mm (deep) x 47mm (wide), C grade softwood joists, supplied by The Building Test Centre. (8mm x 8mm noggings were also made from the same grade softwood) Measured dimensions: Mass per joist: Measured moisture content: 48mm x 7mm x 47mm.kg.4% The surface density and thickness were calculated using a selection of timber used in the test specimen. The moisture content of the timber joists and flooring was determined using samples dried to constant weight in an oven at C. All joists supplied by Alltone. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Chipboard Tongue and Groove Flooring iii) Nominally mm (long) x mm (wide) x mm (thick), supplied by Alltone. Measured surface density: Measured thickness: Measure moisture content:. kg/m mm 7.4% The surface density and thickness were calculated using a selection of timber used in the test specimen. The moisture content of the timber joists and flooring was determined using samples dried to constant weight in an oven at C. All chipboard tongue and groove flooring supplied by Alltone..4 Fasteners iv) v) vi) mm Gyproc Drywall Timber Screws mm Gyproc Drywall Timber Screws inch nails All fasteners supplied by The Building Test Centre.. Miscellaneous Components vii) viii) ix) Gyproc Joint Filler Gyproc Paper Tape Gyproc Bonding Coat All miscellaneous components supplied by The Building Test Centre.. Downlighters x) xi) KSR FRD (five included) Four additional downlighters were positioned into the specimen BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. TEST PROCEDURE The test was conducted fully in accordance with BS 47: Part : 87: Clause 7. The asymmetrical specimen was subjected to fire from the underside (plasterboard side) this being the required direction of fire resistance as specified in BS 47: Part : 87: Clause 7. Where areas of the test specification are ambiguous, or open to interpretation, the Fire Test Study Group Resolutions 4, 47,,,, 7, 7, 7, 77, 7 and 8 have been followed (where appropriate). These Resolutions provide the basis of common agreements between the fire test laboratories, which are members of this group. The test procedure used was 47//7, issue. The ambient temperature at the commencement of the test was 7 C. o The furnace pressure was set to control at 8 ± Pa positive with respect to atmosphere, at the top of the specimen. Furnace pressure data is shown in figure 4. A total load of 8kN (.kn/m ) was applied to equally distributed loading points. Loading requirements were supplied by the sponsor. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com 7. TEST RESULTS The requirements of the standard were satisfied for the following periods: Loadbearing Capacity: minutes Integrity: minutes By virtue of loadbearing capacity failure Insulation: minutes By virtue of loadbearing capacity failure The test was terminated at minutes at the request of the laboratory. 8. LIMITATIONS The results only relate to the behaviour of the specimen of the element of construction under the particular conditions of test; they are not intended to be the sole criteria for assessing the potential fire performance of the element in use nor do they reflect the actual behaviour in fires. The specification and interpretation of fire test methods are the subject of ongoing development and refinement. Changes in associated legislation may also occur. For these reasons it is recommended that the relevance of test reports over years old should be considered by the user. The laboratory that issued the report will be able to offer, on behalf of the legal owner, a review of the procedures adopted for a particular test to ensure that they are consistent with current practices, and if required may endorse the test report. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. TEST DATA. Observations Observers: Unexposed face Exposed face L Cooper, S Potter L Woodford Time Hrs mins Observations All observations refer to the exposed face unless otherwise stated. Test started. Jointing material was flaking away. Board face papers charred. All downlighters had darkened. Glass had fallen into furnace from downlighters C, F, G and J. Glass had fallen into furnace from all downlighters. Bezel on downlighters F, I and J had fallen into furnace. Flaming from downlighter G. Crack running parallel to meter edge on lefthand side board nearest to viewing platform. All board joints had opened to approximately mm. 4 Bezel on downlighters B, C and D had fallen into furnace. All board joints had opened to approximately 8mm. 4 Bezel on downlighter A had fallen into furnace. Bezel on all downlighters had fallen into furnace. Boards bowing into furnace between screw heads adjacent to all board joints. Flaming from downlighter F. Boards bowing into furnace between all screw heads. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time Hrs mins Observations All observations refer to the exposed face unless otherwise stated. Board joint parallel to meter edge nearest to viewing platform had opened to approximately mm. Outer layer board fall, second full board in from the viewing platform, piece approximately mm (wide) x mm (long). 7% of outer layer boards had fallen into the furnace. Inner layer board joints had opened to approximately mm. Cracking noises heard from inside the furnace. Downlighters A, C and G still in position, all other downlighters had fallen into the furnace. Unexposed face Cracking noises heard from the specimen. Inner layer board joints had opened to approximately mm. Flaming inside furnace, visibility poor. Unexposed face Specimen visibly bowed into the furnace in centre. 7 Second layer board fall around downlighter G. Unexposed face Smoke emissions increased from joints in walking surface. Unexposed face Black smoke issued from specimen (closer door end). Unexposed face LOAD BEARING CAPACITY FAILURE Rate of deflection was greater then 7.mm per minute after mm deflection. BTC 77F: Page 4 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time Hrs mins Observations All observations refer to the exposed face unless otherwise stated. Unexposed face Deflection in centre greatly increased. Deflection limit exceeded mm. Unexposed face Gap visible approximately mm wide. Flaming on walking surface in excess of seconds. TEST TERMINATED at the request of the laboratory. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Furnace Temperature Graph 8 Temperat ure ( C) 4 4 8 Mean Furnace Figure Furnace temperature graph Time (minutes) Standard Furnace BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Furnace Pressure Graph Pressure (Pa) 4 8 Time (minutes) Figure 4 Furnace pressure graph The furnace pressure was set to control at 8 ± Pa positive with respect to atmosphere, at the top of the specimen. BTC 77F: Page 7 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com.4 Unexposed Face Temperature Graph 4 Temperat ure Rise ( C) 8 4 4 8 Time (minutes) Mean Standard Five Maximum Unexposed Figure Unexposed face temperature graph BTC 77F: Page 8 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Unexposed Face Layout A B C Standard Five TC's Additional Unexposed TC's Placed in line with D, E, F, & G Internal TC's (see below) Positions A, B, C, D, E, F, G, H, I and J D/ E/ F/7 G/ With pad Downlighter H I J mm T&G Chipboard Flooring (nominally x ) Figure Unexposed face thermocouple layout BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Unexposed Face Downlighter Layout A B C D F G H J K Figure 7 Unexposed face downlighter layout BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com.7 Unexposed Face Standard Five Temperature Data Time (mins) Temperature Rise (ºC) No. No. No. No. No. Mean Standard 4 7 8 4 7 8 7 4 4 7 8 8 4 7 8 4 7 4 7 8 4 7 4 4 7 7 8 4 7 8 4 4 4 4 7 8 4 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) Temperature Rise (ºC) No. No. No. No. No. Mean Standard 4 7 8 4 4 4 4 44 4 4 47 48 4 4 7 8 7 8 7 4 7 8 4 4 4 44 4 47 8 7 4 4 7 4 4 4 4 4 48 4 8 8 7 7 4 4 4 48 7 8 4 7 8 8 4 44 48 4 7 8 8 7 7 4 8 4 4 4 48 7 8 7 7 7 4 44 4 48 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) Temperature Rise (ºC) No. No. No. No. No. Mean Standard 7 7 7 7 74 7 7 77 78 7 8 8 8 8 84 8 8 87 88 8 48 4 4 4 7 7 8 8 4 4 7 7 7 8 8 7 7 7 7 7 7 7 8 7 8 8 4 7 8 7 See Figure for thermocouple layout. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com.8 Additional Unexposed Face Temperature Data Time (mins) Temperature Rise (ºC) No. No. No. 7 No. 4 7 8 4 7 8 7 4 7 8 8 4 4 4 7 8 8 4 7 8 4 7 4 7 8 4 7 8 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) Temperature Rise (ºC) No. No. No. 7 No. 4 7 8 4 4 4 4 44 4 4 47 48 4 4 7 8 7 7 8 7 8 4 4 44 47 4 8 4 7 8 7 4 8 4 4 44 8 8 7 7 4 7 4 4 4 48 4 7 8 7 7 8 4 4 4 47 4 4 7 8 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) Temperature Rise (ºC) No. No. No. 7 No. 7 7 7 7 74 7 7 77 78 7 8 8 8 8 84 8 8 87 88 8 74 7 7 7 7 7 7 8 87 4 4 48 4 4 7 8 74 7 8 7 7 7 7 7 7 See Figure for thermocouple layout. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Internal Temperature Data Time (mins) 4 7 8 4 7 8 7 Actual Temperature (ºC) Position AAB 7 7 8 47 444 8 4 7 74 788 74 84 8 8 84 887 7 74 774 47 788 88 8 84 8 487 88 88 4 B 7 4 4 7 7 7 74 7 7 7 78 7 8 8 84 8 87 8 C 4 4 8 8 8 4 7 8 C 4 47 4 7 7 77 78 7 7 7 8 8 8 84 8 87 88 8 D 7 4 7 7 74 78 8 84 88 4 8 8 48 D 4 44 4 7 7 7 7 7 7 77 7 8 8 8 8 87 88 8 F 7 8 4 8 8 8 8 7 8 F 44 4 4 8 7 7 7 7 77 78 7 8 8 84 8 87 8 BTC 77F: Page 7 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) 4 7 8 4 4 4 4 44 4 4 47 48 4 4 7 8 Actual Temperature (ºC) Position AAB 8 8 4 4 44 44 4 44 44 4 4 4 4 4 8 7 774 888 8 4 748 7 7 8 748 B 4 4 8 8 8 44 7 8 C 7 7 4 4 7 8 8 7 C 4 4 8 8 4 7 D 7 7 48 4 7 4 4 44 7 84 4 74 7 7 D 4 4 4 8 4 8 4 8 7 8 87 4 F 7 8 8 44 8 7 8 7 7 74 7 F 4 4 8 8 7 44 77 84 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) 7 7 7 7 74 7 7 77 78 7 8 8 8 8 84 8 8 87 88 8 Actual Temperature (ºC) Position AAB 8 77 74 8 8 8 47 8 7 8 44 447 4 47 478 4484 448447 4478 4844877 444 B 8 7 8 4 7 74 7 4 4 88 C 7 77 7 4 7 4 8 4 44 47 7 C 77 8 4 8 7 7 78 8 8 D 4 4 47 4 4 47 4 47 477 4 4 4 7 4 D 8 7 8 44 4 4 44 44 4 4 478 48 4 F 4 4 44 48 47 44 4 8 4 48 7 778 774 784 4 F 8 7 7 87 4 4 44 48 4 47 48 4 7 78 See Figure for thermocouple layout. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) 4 7 8 4 7 8 7 4 Actual Temperature (ºC) Position GGH 4748 487 777 84788 8 74 77 7 8 8 84 8 784 48 4784 88 4874 8 8 4 7 7 4 477 4488 H 7 4 8 4 47 7 74 7 77 78 78 7 8 8 84 8 8 88 8 I 4 8 8 7 7 4 4 44 48 4 47 4 I 7 4 8 44 7 74 7 77 78 7 7 7 8 8 8 8 87 88 4 4 J 8 4 77 8 4 7 8 4 8 4 48 48 4 J E 4 44 4 7 7 7 7 7 74 7 78 8 8 84 8 8 8 E 7 4 47 7 7 7 7 77 7 8 8 84 8 88 8 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) 7 8 4 4 4 4 44 4 4 47 48 4 4 7 8 7 7 Actual Temperature (ºC) Position GGH 8 477 478 78 87 47 44 84 88 88 7 87 8877 48 4 7 7 8 8 4 478 787 4 7 8 8 78 H 4 4 4 8 8 7 4 4 48 7 78 8 7 I 4 8 8 4 48 7 8 88 7 4 8 7 78 I 8 8 8 7 7 4 4 8 7 77 84 J 7 4 47 77 8 7 4 7 77 4 8 J E 4 4 7 8 4 7 8 8 7 7 E 4 4 8 4 4 7 78 8 BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) 7 7 74 7 7 77 78 7 8 8 8 8 84 8 8 87 88 8 Actual Temperature (ºC) Position GGH 44 7 47 74 7847 8744 4 447 444 474 48447 444 4 44 4448 74 777 778 84 8 H 8 7 4 7 88 4 4 4 448 4 47 488 I 7 4 4 44 4 4 47 4 7 8 87 8 I 4 4 8 4 8 4 4 44 4 48 744 8 8 4 J 4 8 4 8 4 4 447 4 477 4 8 7 84 8 874 8 J E 7 7 4 88 44 47 44 4 4 474 48 4 7 8 84 E 4 7 4 7 48 84 4 48 4 44 4 484 47 8 8 Indicates a broken thermocouple. See Figure for thermocouple layout. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Specimen Vertical Deflection Time (mins) 4 7 8 4 7 8 7 Centre Deflection (mm) Centre Deflection (mm) Maximum Rate of deflection (mm/minute).................................. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) 4 7 8 4 4 4 4 44 4 4 47 48 4 4 7 8 Centre Deflection (mm) 7 7 Centre Deflection (mm) 4 7 Maximum Rate of deflection (mm/minute)................................7...7. BTC 77F: Page 4 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com Time (mins) 7 7 7 7 74 7 7 77 78 7 8 8 8 8 84 8 8 87 88 8 Centre Deflection (mm) 4 8 7 4 4 8 7 8 47 Centre Deflection (mm) 8 4 7 8 4 44 7 Maximum Rate of deflection (mm/minute)...........7..7.. 4....8.4. 7.4 4..4 The two centre deflections were recorded at the approximate centre of the specimen. Positive readings indicate deflection into the furnace. BTC 77F: Page of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Exposed face prior to test BTC 77F: Page 7 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com. Unexposed face prior to test BTC 77F: Page 8 of
Leics. LE NP Tel () 4 Fax () 4 Email btc.testing@saintgobain.com.4 Unexposed face at hour, minutes BTC 77F: Page of