Laboratory Airborne and Impact Sound Insulation of a Robust Details Appendix F Floor with PhotonStar LED Ltd. Downlights

Transcription

1 Laboratory Airborne and Impact Sound Insulation of a Robust Details Appendix F Floor with PhotonStar LED Ltd. Downlights Prepared for: PhotonStar LED Group plc Unit 8 Westlink Belbins Business Park Romsey Hampshire SO51 7JF 25 th January 2013 Test report number

2 Tested by Name Mr I West Position Acoustics Laboratory Manager Date 3 rd January 2013 Signature Prepared by Name Mr I West Position Acoustics Laboratory Manager Date 3 rd January 2013 Signature Checked by Name Mr G Timmins Position Head of Acoustics Date 25 th January 2013 Signature Signature Approved on behalf of BRE Name Dr P Blackmore Position Associate Director Date 25 th January 2013 Signature BRE Garston WD25 9XX T + 44 (0) F + 44 (0) E enquiries@bre.co.uk BRE is not UKAS accredited to make opinions and interpretation. Any opinions and interpretations included as part of this report are clearly marked as such. This report may only be distributed in its entirety and in accordance with the terms and conditions of the contract. Test results relate only to the items tested. BRE has no responsibility for the design, materials, workmanship or performance of the product or items tested. This report does not constitute an approval, certification or endorsement of the product tested and can not be reproduced without permission. This report is made on behalf of BRE. By receiving the report and action on it, the client or any third party relying on it accepts that no individual is personally liable in contract, tort or breach of statutory duty (including negligence). Page 2 of 19

3 Contents 1 Introduction 4 2 Testing details Test dates and personnel Test method and applicable standards Test element installation Instrumentation Test numbers Construction details with test numbers Sound insulation test results Plans Photographs 10 3 Appendices UKAS test result sheets 11 Page 3 of 19

4 1 Introduction BRE Acoustics was commissioned by PhotonStar LED Group plc to carry out airborne and impact sound insulation measurements in the BRE vertical transmission suite (Building 9), BRE, Garston, Watford, Hertfordshire, WD25 9XX. This report details the testing outlined in BRE proposal Testing details 2.1 Test dates and personnel The measurements detailed in this report were made on 13 th November 2012 and 3 rd January 2013 by Mr I West of BRE Acoustics. 2.2 Test method and applicable standards Measurement of airborne and impact sound insulation was made in accordance with BS EN ISO 140-3:1995 and BS EN ISO 140-6:1998. Single number quantities were calculated in accordance with BS EN ISO 717-1:1997 and BS EN ISO 717-2:1997. BRE Acoustics holds UKAS accreditation for the measurement of sound insulation in the field and the laboratory. The measurements were conducted using the procedures accredited by UKAS. 2.3 Test element installation The Robust Details Appendix F floor and the downlights were installed by BRE. Page 4 of 19

5 2.4 Instrumentation The equipment used to conduct the tests is identified in Table 1. Table 1 Equipment list Equipment description Manufacturer Type UKAS identification number Microphone Calibrator NOR / /008 Microphone B&K 4188-A-O 02/202, 02/204 Microphone Preamplifier B&K /202, 4/204 Microphone Adapter NOR /101, 06/102 Tapping Machine NOR /001 Real Time Analyser NOR /002 Loudspeaker B&K /006 Graphic Equaliser Phonic PEQ /002 The gain of the real time analyser was adjusted to give a reading 124.0dB at 250Hz using the NOR Type 1253 calibrator. All equipment is calibrated in accordance with BRE procedures, using reference equipment calibrated by a UKAS accredited laboratory. Page 5 of 19

6 2.5 Test numbers Table 2 lists each test element along with its corresponding test number. The construction details for each test element can be found from Table 3 by referring to the test number. Table 2 Test numbers Test number Test element Source room volume (m 3 ) Receive room volume (m 3 ) Common area (m 2 ) L L Floor L L Page 6 of 19

7 2.6 Construction details with test numbers The construction details are shown in Table 3. When construction details are provided by a third party, they are checked by BRE where possible. Table 3 Construction details Test element Floor Test number L L L L Construction details Robust Details Limited Appendix F floor: 18mm OSB (10.9kg/m 2 ) screwed to 235mm x 50 mm joists (3.6 kg/m 2 ) mounted in hangers at 450mm centres, 100mm Isover APR 1200 (10kg/m 3 ) between joists, 1x19mm gypsum based board (14.5kg/m 2 ), 1x12.5mm gypsum based board (10.5kg/m 2 ) screwed to underside of joists, joints and perimeter sealed Robust Details Limited Appendix F floor containing nine CeilingStar/EcoStar LED downlights Page 7 of 19

8 2.7 Sound insulation test results The single number quantities for the sound insulation tests are shown in Table 4. The UKAS test result sheets are included in the appendices. Robust Details Appendix F, F.3 (August 2008 update) states: For the purposes of evaluating the influence on performance due to downlights for Robust Detail timber separating floors, four different measurements are required (2 airborne and 2 impact measurements). The following measurements are required: Airborne Test 1 Test 2 Impact Test 3 Test 4 Determination of R w +C tr for the initial timber floor Determination of R w +C tr for the initial timber floor plus downlights Determination of L n,w for the initial timber floor Determination of L n,w for the initial timber floor plus downlights Table 4 contains values of the difference between Test 2 and Test 1 (Test 2 - Test 1) for airborne sound insulation performance and the difference between Test 3 and Test 4 (Test 3 - Test 4) for impact sound transmission performance. Table 4 Test results Test number Product Reference R w +C tr (db) L Initial Timber Floor L L n,w (db) Test 2 - Test 1 (db) Test 3 - Test 4 (db) L CeilingStar/EcoStar 31 0 L LED downlights 79 0 Page 8 of 19

9 2.8 Plans The joist installation for the floor is illustrated in Figure 1. The ends of the joists are fixed in hangers as specified in Appendix F of Robust Details Part E. Masonry ledge Figure 1 Floor joists at 450mm centres 3.6 m 0.9 m 0.9 m 0.9 m 0.9 m 3.6 m Masonry ledge 4.9 m 1.05 m 1.4 m 1.4 m 1.05 m 4.9 m Figure 2 Positions of the downlights in the ceiling of the Robust Details Appendix F floor Page 9 of 19

10 2.9 Photographs Figure 3: CeilingStar/EcoStar LED downlight Figure 4: Downlights installed and ready to test Page 10 of 19

11 3 Appendices 3.1 UKAS test result sheets Page number Test number 12 L L L L Page 11 of 19

12 Laboratory measurement of airborne sound insulation of building elements Sound reduction index according to BS EN ISO 140-3:1995 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 13/11/2012 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor: 18mm OSB (10.9kg/m 2 ) screwed to 235mm x 50 mm joists (3.6 kg/m 2 ) mounted in hangers at 450mm centres, 100mm Isover APR 1200 (10kg/m 3 ) between joists, 1x19mm gypsum based board (14.5kg/m 2 ), 1x12.5mm gypsum based board (10.5kg/m 2 ) screwed to underside of joists, joints and perimeter sealed Source room volume: 66 m³ Air temperature: 17 ºC Receive room volume: 61 m³ Air relative humidity: 55 % Frequency Reverberation Background Source Receive R time level level level (Hz) (s) (db) (db) (db) (db) , , , , , , , , Receiving room level adjusted for background Rating according to BS EN ISO 717-1:1997 R w (C;C tr ) = 38 (-2;-7) db C = -2 db C = -1 db C = -1 db C tr, = -8 db C tr, = -8 db C tr, = -7 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (R w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (R) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 12 of 19

13 Laboratory measurement of airborne sound insulation of building elements Sound reduction index according to BS EN ISO 140-3:1995 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 13/11/2012 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor: 18mm OSB (10.9kg/m 2 ) screwed to 235mm x 50 mm joists (3.6 kg/m 2 ) mounted in hangers at 450mm centres, 100mm Isover APR 1200 (10kg/m 3 ) between joists, 1x19mm gypsum based board (14.5kg/m 2 ), 1x12.5mm gypsum based board (10.5kg/m 2 ) screwed to underside of joists, joints and perimeter sealed Source room volume: 66 m³ Air temperature: 17 ºC Receive room volume: 61 m³ Air relative humidity: 55 % R Frequency One-third (Hz) octave (db) , , , , , , , , Receiving room level adjusted for background Sound reduction index, R (db) ,000 1,250 1,600 Third octave band centre frequency (Hz) 2,000 2,500 3,150 4,000 5,000 Rating according to BS EN ISO 717-1:1997 R w (C ;C tr ) = 38 (-2;-7) db C = -2 db C = -1 db C = -1 db C tr, = -8 db C tr, = -8 db C tr, = -7 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (R w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (R) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 13 of 19

14 Laboratory measurement of impact sound insulation of floors Normalized impact sound pressure level according to BS EN ISO 140-6:1998 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 13/11/2012 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor: 18mm OSB (10.9kg/m 2 ) screwed to 235mm x 50 mm joists (3.6 kg/m 2 ) mounted in hangers at 450mm centres, 100mm Isover APR 1200 (10kg/m 3 ) between joists, 1x19mm gypsum based board (14.5kg/m 2 ), 1x12.5mm gypsum based board (10.5kg/m 2 ) screwed to underside of joists, joints and perimeter sealed Source room volume: 61 m³ Air temperature: 17 ºC Receive room volume: 66 m³ Air relative humidity: 55 % Frequency Reverberation Background Impact L n time level level (Hz) (s) (db) (db) (db) , , , , , , , , Rating according to BS EN ISO 717-2:1997 L n,w (C I ) = 79 (0) db C I, = 0 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (L n,w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (L n ) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 14 of 19

15 Laboratory measurement of impact sound insulation of floors Normalized impact sound pressure level according to BS EN ISO 140-6:1998 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 13/11/2012 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor: 18mm OSB (10.9kg/m 2 ) screwed to 235mm x 50 mm joists (3.6 kg/m 2 ) mounted in hangers at 450mm centres, 100mm Isover APR 1200 (10kg/m 3 ) between joists, 1x19mm gypsum based board (14.5kg/m 2 ), 1x12.5mm gypsum based board (10.5kg/m 2 ) screwed to underside of joists, joints and perimeter sealed Source room volume: 61 m³ Air temperature: 17 ºC Receive room volume: 66 m³ Air relative humidity: 55 % 90 L n Frequency One-third (Hz) octave (db) , , , , , , , , Normalized impact sound pressure level, L n (db) ,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 Third octave band centre frequency (Hz) Rating according to BS EN ISO 717-2:1997 L n,w (C I ) = 79 (0) db C I, = 0 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (L n,w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (L n ) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 15 of 19

16 Laboratory measurement of airborne sound insulation of building elements Sound reduction index according to BS EN ISO 140-3:1995 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 03/01/2013 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor containing nine CeilingStar/EcoStar LED downlights Source room volume: 66 m³ Air temperature: 8ºC Receive room volume: 61 m³ Air relative humidity: 75 % Frequency Reverberation Background Source Receive R time level level level (Hz) (s) (db) (db) (db) (db) , , , , , , , , Rating according to BS EN ISO 717-1:1997 R w (C;C tr ) = 39 (-2;-7) db C = -3 db C = -2 db C = -1 db C tr, = -8 db C tr, = -8 db C tr, = -7 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (R w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (R) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 16 of 19

17 Laboratory measurement of airborne sound insulation of building elements Sound reduction index according to BS EN ISO 140-3:1995 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 03/01/2013 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor containing nine CeilingStar/EcoStar LED downlights Source room volume: 66 m³ Air temperature: 8ºC Receive room volume: 61 m³ Air relative humidity: 75 % R Frequency One-third (Hz) octave (db) , , , , , , , , Sound reduction index, R (db) ,000 1,250 1,600 Third octave band centre frequency (Hz) 2,000 2,500 3,150 4,000 5,000 Rating according to BS EN ISO 717-1:1997 R w (C ;C tr ) = 39 (-2;-7) db C = -3 db C = -2 db C = -1 db C tr, = -8 db C tr, = -8 db C tr, = -7 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (R w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (R) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 17 of 19

18 Laboratory measurement of impact sound insulation of floors Normalized impact sound pressure level according to BS EN ISO 140-6:1998 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 03/01/2013 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor containing nine CeilingStar/EcoStar LED downlights Source room volume: 61 m³ Air temperature: 8ºC Receive room volume: 66 m³ Air relative humidity: 75 % Frequency Reverberation Background Impact L n time level level (Hz) (s) (db) (db) (db) , , , , , , , , Rating according to BS EN ISO 717-2:1997 L n,w (C I ) = 79 (-1) db C I, = -1 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (L n,w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (L n ) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 18 of 19

19 Laboratory measurement of impact sound insulation of floors Normalized impact sound pressure level according to BS EN ISO 140-6:1998 BRE vertical transmission suite (B9) Client: PhotonStar LED Ltd. Test date: 03/01/2013 Test number: L Test element: floor Test element area: 17.6 m² Mass per unit area: 41 kg/m² Description: Robust Details Limited Appendix F floor containing nine CeilingStar/EcoStar LED downlights Source room volume: 61 m³ Air temperature: 8ºC Receive room volume: 66 m³ Air relative humidity: 75 % 90 L n Frequency One-third (Hz) octave (db) , , , , , , , , Normalized impact sound pressure level, L n (db) ,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 Third octave band centre frequency (Hz) Rating according to BS EN ISO 717-2:1997 L n,w (C I ) = 79 (-1) db C I, = -1 db Evaluation based on laboratory measurement results obtained by an engineering method Based on the data provided in BS EN :1993 it is estimated that the measurement uncertainty should not exceed ±1 db for the single quantity (L n,w ) and should not exceed the values in Table A1 of BS EN :1993 for the data in the individual third octaves (L n ) This page may only be distributed with the test report in its entirety and in accordance with the terms and conditions of the contract Page 19 of 19