ACOUSTIC ASSESSMENT OF TRAFFIC NOISE IMPACTS ON THE PROPOSED AVALON CATHOLIC ELEMENTARY SCHOOL

Ottawa Ontario Canada ACOUSTIC ASSESSMENT OF TRAFFIC NOISE IMPACTS ON THE PROPOSED AVALON CATHOLIC ELEMENTARY SCHOOL CITY OF OTTAWA Prepared for Bryden Martel Architects Inc. Prepared by Hugh Williamson Associates Inc. 12 th February, 2014 Postal Address: PO Box 74056, RPO Beechwood, Ottawa, Ontario, K1M 2H9, Canada Phone/Fax: (613) 747 0983, Email: hughwilliamson@hwacoustics.ca http://www.hwacoustics.ca

ACOUSTIC ASSESSMENT OF TRAFFIC NOISE IMPACTS ON THE PROPOSED AVALON CATHOLIC ELEMENTARY SCHOOL CITY OF OTTAWA Table of Contents Section Table of Contents Page i 1.0 Introduction 1 2.0 Prediction of Outdoor Sound Levels at the Building Facade 2 3.0 Predicted Indoor Sound Levels 3 4.0 Conclusion 4 References 5 P a g e i

Appendix 1 Figures Figure A1.1: Site Plan showing proposed Esprit Drive and location of proposed building Figure A1.2: Detailed Site Plan showing distances to external facade of building Figure A1.3: Kindergarten - Room 141 Figure A1.4: Classroom Room 165 Figure A1.5: Classroom Room 161 & 162 Figure A1.6: Building Elevations Appendix 2 Background Traffic Noise Analysis Table A2.1 Table A2.2 Traffic and Road Parameters used in Sound Level Predictions Traffic Volume and Background Noise Estimates STAMSON Output Appendix 3 Predicted Interior Noise Predictions Table A3.1: Room Dimensions Sample outputs from IBANA-Calc Resume, Dr. Hugh Williamson, Michael Wells P a g e ii

ACOUSTIC ASSESSMENT OF TRAFFIC NOISE IMPACTS ON THE PROPOSED AVALON CATHOLIC ELEMENTARY SCHOOL CITY OF OTTAWA 1.0 Introduction This report describes an assessment of noise in the interior spaces of the proposed Avalon Catholic Elementary School due to future traffic noise from Esprit Drive. Esprit Drive will lie immediately north of the School as shown in Figures A1.1 and A1.2. The assessment has been carried out in accordance with City of Ottawa Environmental Noise Control Guidelines 1 by Hugh Williamson Associates. The noise assessment methodology is summarised below. Prediction of outdoor noise level at external façade of building generated by traffic on the Esprit Drive assessed as a two lane Urban Collector (2-UCU) Road. 1 Prediction of internal noise levels in school rooms based on the attenuation characteristics of the external walls and windows of the School. Comparison of predicted indoor noise levels with limits set in the City Guidelines. If needed, mitigation measures are recommended such that compliance with the sound level limits is achieved. The proposed is to be located at 2300 Esprit Drive, Orleans, Ontario on the south side of Esprit Drive, as shown in Figure A1.1. Directions in this report refer to site north as shown in Figure A1.1. Sound Level Limit In Table 1.6 of the City of Ottawa Environmental Noise Control Guidelines, indoor sound level limits due to surface transportation are set according to the intended usage of the space. The relevant criterion for schools is set out below. Sound Level Limit: 45 dba for the impacts from road traffic noise on classrooms, school offices and conference rooms. The noise level is to be based on the day time equivalent sound level, Leq 16h, which is the energy based average sound level over the 16-hour day time period of 7 a.m. to 11 p.m. P a g e 1

2.0 Prediction of Outdoor Sound Levels at the Building Facade Following the City Guidelines 1, noise generated by road traffic is predicted using STAMSON 2, 3, a traffic noise model developed by the Ontario Ministry of Environment. STAMSON takes into account such factors as distance from the road, height, nature of the intervening buildings and terrain, and noise barriers, if present. Esprit Drive is classified as a 2-Lane Urban Collector (2-UCU). As set out in Table A2.1, the City Guidelines provide traffic data corresponding to a mature state of development of such a road, and, this data is to be used as the basis for the prediction of road traffic noise for assessment purposes. As set out in detail in Appendix 2, the predicted outdoor sound level, Leq 16h, at the closest point on the facade of the School has been calculated at three locations, each location representing the outdoor noise impact on the building s façade at location of the three selected noise sensitive spaces (classrooms). The predicted outdoor sound level at the three classrooms was: 60.42 dba at Room 141, 62.96 dba at Room 165, 60.76 dba at Rooms 161 & 162. These predictions are based on the distances shown in Figure A1.2 and the traffic data shown in Table A2.1. For the purpose of calculating the indoor sound level from road traffic, it is assumed that these outdoor sound levels apply at all facade surfaces which are fully exposed to Esprit Drive, despite slightly larger distances applying to some surfaces. It has been assumed that the applicable speed limit on Esprit Drive will be 40 km per hour. P a g e 2

3.0 Predicted Indoor Sound Levels Three rooms were selected as potentially worst case for sound transmission of noise from Esprit Drive, as indicated in Figures A1.1, A1.3, A1.4 and A1.5. Kindergarten - Room 141 north west corner of building, see Figure A1.3. Classroom Room 165 north east corner of building, see Figure A1.4. Classroom Room 161 and 162 east façade of building, see Figure A1.5. Indoor sound levels have been predicted using standard acoustical techniques using the software IBANA-Calc which was developed by the National Research Council, Canada. IBANA-Calc allows the calculation of sound transmission through wall elements of a room taking into account the detailed spectral sound transmission characteristics. The external partitions of the school are described in detail in the attached drawings. They consist of one of the following. Brick Veneer: 16 mm gypsum board, 152 mm steel studs on 400 mm centres, 13 mm External Gypsum Board, 75 mm rigid insulation, 25 mm airspace, 89 mm brick. It is noted that alternative wall construction with minimum STC rating of 53 is acceptable to comply with ENCG. Aluminium Windows: 3 mm glass, 13 mm air space, 3 mm glass. Note that one portion of the windows are operable, see attached building elevations. It is noted that alternative window construction with minimum STC rating of 28 is acceptable to comply with ENCG. Detailed estimates of indoor noise levels are presented in Appendix 3. These details include wall and floor areas, sound transmission data for the walls and windows, calculation of resultant sound levels in rooms and sample outputs of IBANA-Calc. The resulting prediction and assessment are shown in Table 1. It is noted that the predicted sound level meet city guidelines in all cases. Table 1: Acoustic Assessment Summary Table Room Estimated Indoor Noise Level Leq 16h (dba) Sound Level Limit by City Guidelines 1 (dba) Compliance with Limit Kindergarten Room 141 24 45 Yes Classroom Room 165 29 45 Yes Classroom Room 161 / 162 27 45 Yes P a g e 3

4.0 Conclusion An acoustical assessment has been conducted of the potential impact of noise from Esprit Drive on the proposed using the City of Ottawa Environmental Noise Control Guidelines. The assessment takes into account the future mature state of Esprit Drive as a 2-Lane Urban Collector Road. Indoor sound levels have been estimated in three of the most exposed rooms, one Kindergarten and two classrooms. It is concluded that with the proposed construction of the, as specified in this report, the predicted indoor sound level from road traffic are in compliance with the City of Ottawa Environmental Noise Control Guidelines. Hugh Williamson, Ph.D., P.Eng. Member, Canadian Acoustical Society Member, American Society of Heating, Ventilating, Air-conditioning Engineers, ASHRAE Michael Wells, B.Arch. (Hons) B.Sc. (Arch) Member, Canadian Acoustical Society Registered Architect of NSW, ARN: 8111 P a g e 4

References 1. City of Ottawa, Environmental Noise Control Guidelines, 2006. 2. Ministry of Environment, Ontario Road Noise Analysis Method for Environment and Transportation (ORNAMENT), 1989. 3. Ministry of Environment, STAMSON Software, Version 5.04, 2000. (Software version of Reference 2.) 4. National Research Council, Canada, IBANA-Calc Software, Version 1.2. P a g e 5

Appendix 1 Figures Contents: Figure A1.1: Figure A1.2: Site Plan showing Esprit Drive and the proposed Avalon Catholic Elementary School building Detailed Site Plan showing distances to facade of building Figure A1.3: Detailed Plan - Kindergarten Room 141 Figure A1.4: Detailed Plan - Classroom Room 165 Figure A1.5: Detailed Plan - Classroom Rooms 161 & 162 Figure A1.6: Building Elevations P a g e 6

Figure A1.1: Site Plan showing building location (source: Bryden Martel) Classroom 141 Classroom 165 Site North Esprit Drive Classroom 161 & 162 Proposed Avalon Catholic Elementary School P a g e 7

Figure A1.2: Detailed Site Plan showing distances to facade of building Esprit Drive Segment 1 Esprit Drive Segment 2 Esprit Drive Segment 3 Site North Esprit Drive Segment 4 P a g e 8

Figure A1.3: Kindergarten - Room 141 Windows Site North Location at window of north wall, exposed to Esprit Drive traffic noise, used for assessment of outdoor traffic noise impacts. P a g e 9

Figure A1.4: Classroom - Room 165 Windows Site North Location at window of north wall, exposed to Esprit Drive traffic noise, used for assessment of outdoor traffic noise impacts. P a g e 10

Figure A1.5: Classroom Room 161 and 162 Site North Windows Location at window of east wall, exposed to Esprit Drive traffic noise, used for assessment of outdoor traffic noise impacts. P a g e 11

Figure A1.6: Building Elevations P a g e 12

Appendix 2 Background Traffic Noise Analysis This Appendix presents the results of an analysis of background noise from road traffic on Esprit Drive assessed as a 2-Lane Urban Collector (2-UCU) Road. The Traffic and Road Parameters to be used for sound level predictions have been taken from the City of Ottawa Environmental Noise Control Guideline 2006. This results in the calculation of the minimum background noise from Es[rit Drive at the external Facade of the proposed Avalon Catholic elementary School. The minimum background noise level is determined for one time period. Contents: Day: 07:00 to 19:00 Table A2.1 Table A2.2 Traffic and Road Parameters to Be Used For Sound Level Predictions Background Noise Estimates STAMSON Output P a g e 13

Table A2.1: Traffic and Road Parameters to Be Used For Sound Level Predictions Row Width (m) 20-30 Implied Roadway Class 2-Lane Urban Collector (2-UCU) AADT Vehicles/Day Posted Speed Km/Hr Day/Night Split % Medium Trucks % Heavy Trucks % 1 Day Volumes, 7:00-23:00 Cars Medium Heavy 8,000 40-50 92/8 7 5 6477 515 368 * Refer to City of Ottawa Environmental Noise Control Guideline 2006, Table 1.7. Table A2.2: Background Noise Estimates for Esprit Drive Project: Proposed Avalon Catholic School Future Mature Traffic Volumes from City of Ottawa Environmental Noise Control Guidelines 2006; (2-UCU, 2-lane urban collector) Posted Speed Limit: 60 km/h Location Room 141 (Plane of Window) Room 165 (Plane of Window) Room 161 & 162 (Plane of Window) Distance (m) Esprit Drive Segment 1 Angle Angle Distance (m) Esprit Drive Segment 2 Angle Angle Distance (m) Esprit Drive Segment 3 Angle Angle Distance (m) Esprit Drive Segment 4 Angle Angle Day Noise Predictions Leq16h in dba, STAMSON 43.8-90 -10 43.2-10 63.3 - - - - - - 60.42 - - - 31.93-70 -23.4 22.7-40 70.3 - - - 62.96 - - - - - - 55.6 0 55.6 27.4 55.6 132.6 60.76 * Based on Table A2.1. Esprit Drive assessed at 50 km/h. P a g e 14

Traffic Noise Predictions using STAMSON STAMSON 5.0 SUMMARY REPORT Date: 12-02-2014 15:03:13 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: por1_50.te Time Period: 16 hours Description: POR 1 - Kindergarten - Room 141 Road data, segment # 1: Esprit Drive ------------------------------------ Car traffic volume : 6477 veh/timeperiod Medium truck volume : 515 veh/timeperiod Heavy truck volume : 368 veh/timeperiod Posted speed limit : 50 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) Data for Segment # 1: Esprit Drive ---------------------------------- Angle1 Angle2 : -90.00 deg -10.00 deg Wood depth : 0 (No woods.) No of house rows : 0 Surface : 2 (Reflective ground surface) Receiver source distance : 43.80 m Receiver height : 2.00 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 80.00 Road data, segment # 2: Esprit Drive ------------------------------------ Car traffic volume : 6477 veh/timeperiod Medium truck volume : 515 veh/timeperiod Heavy truck volume : 368 veh/timeperiod Posted speed limit : 50 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) Data for Segment # 2: Esprit Drive ---------------------------------- Angle1 Angle2 : -10.00 deg 63.30 deg Wood depth : 0 (No woods.) No of house rows : 0 Surface : 2 (Reflective ground surface) Receiver source distance : 43.20 m Receiver height : 1.50 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 73.00 Result summary --------------! source! Road! Total! height! Leq! Leq! (m)! (dba)! (dba) --------------------+---------+---------+--------- 1.Esprit Drive! 1.50! 57.57! 57.57 2.Esprit Drive! 1.50! 57.25! 57.25 --------------------+---------+---------+--------- Total 60.42 dba TOTAL Leq FROM ALL SOURCES: 60.42 P a g e 15

STAMSON 5.0 SUMMARY REPORT Date: 12-02-2014 15:04:31 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: por2_50.te Time Period: 16 hours Description: POR 2 - Classroom - Room 165 Road data, segment # 1: Esprit Drive ------------------------------------ Car traffic volume : 6477 veh/timeperiod Medium truck volume : 515 veh/timeperiod Heavy truck volume : 368 veh/timeperiod Posted speed limit : 50 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) Data for Segment # 1: Esprit Drive ---------------------------------- Angle1 Angle2 : -70.00 deg -23.40 deg Wood depth : 0 (No woods.) No of house rows : 0 Surface : 2 (Reflective ground surface) Receiver source distance : 31.93 m Receiver height : 2.00 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 47.00 Road data, segment # 2: Esprit Drive ------------------------------------ Car traffic volume : 6477 veh/timeperiod Medium truck volume : 515 veh/timeperiod Heavy truck volume : 368 veh/timeperiod Posted speed limit : 50 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) Data for Segment # 2: Esprit Drive ---------------------------------- Angle1 Angle2 : -40.00 deg 70.30 deg Wood depth : 0 (No woods.) No of house rows : 0 Surface : 2 (Reflective ground surface) Receiver source distance : 22.70 m Receiver height : 1.50 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 110.00 Result summary --------------! source! Road! Total! height! Leq! Leq! (m)! (dba)! (dba) --------------------+---------+---------+--------- 1.Esprit Drive! 1.50! 56.60! 56.60 2.Esprit Drive! 1.50! 61.82! 61.82 --------------------+---------+---------+--------- Total 62.96 dba TOTAL Leq FROM ALL SOURCES: 62.96 P a g e 16

STAMSON 5.0 SUMMARY REPORT Date: 12-02-2014 15:05:29 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: por3_50.te Time Period: 16 hours Description: POR 3 - Classroom - Room 161 Road data, segment # 1: Esprit Drive ------------------------------------ Car traffic volume : 6477 veh/timeperiod Medium truck volume : 515 veh/timeperiod Heavy truck volume : 368 veh/timeperiod Posted speed limit : 50 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) Data for Segment # 1: Esprit Drive ---------------------------------- Angle1 Angle2 : 0.00 deg 56.00 deg Wood depth : 0 (No woods.) No of house rows : 0 Surface : 2 (Reflective ground surface) Receiver source distance : 55.60 m Receiver height : 2.00 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 55.60 Road data, segment # 2: Esprit Drive ------------------------------------ Car traffic volume : 6477 veh/timeperiod Medium truck volume : 515 veh/timeperiod Heavy truck volume : 368 veh/timeperiod Posted speed limit : 50 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) Data for Segment # 2: Esprit Drive ---------------------------------- Angle1 Angle2 : -34.00 deg 42.60 deg Wood depth : 0 (No woods.) No of house rows : 0 Surface : 2 (Reflective ground surface) Receiver source distance : 27.40 m Receiver height : 1.50 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 77.00 Result summary --------------! source! Road! Total! height! Leq! Leq! (m)! (dba)! (dba) --------------------+---------+---------+--------- 1.Esprit Drive! 1.50! 54.99! 54.99 2.Esprit Drive! 1.50! 59.42! 59.42 --------------------+---------+---------+--------- Total 60.76 dba TOTAL Leq FROM ALL SOURCES: 60.76 P a g e 17

Appendix 3 Detailed Indoor Noise Predictions Contents: Table A3.1: Room Dimensions Sample outputs from IBANA-Calc P a g e 18

Table A3.1: Room Dimensions Room Room 141 (Kindergarten) Room 165 (Classroom) Room 161 and 162 (Classroom) Width (m) Overall Room Dimensions Length Height (m) (m) Area (sq.m) Total Area (sq.m) Exposed Walls Window Area (sq.m) 8.3 14.99 2.67 124.41 22.2 5.7 8.2 8.3 2.67 68.1 21.9 5.2 7.6 17.7 2.67 134.5 47.3 10.4 P a g e 19

Sample outputs from IBANA-Calc Aircraft Noise Sound Insulation Scenario Calculation Results Project: Room 141 ProjectID: Date:12/02/2014 Outdoor level: NEF 29 or Leq24 61 or Ldn 62 dba Source Spectrum details: 100% ISO 717 Road Traffic Corrections: Receiving room: Floor Area: Absorbtion: Construction Description: 124.4 ft² 80% of floor area Element 1: G13_WS140(406)_GFB152_OSB11_AIR16_BRI8 9 Construction Type: 2by6 Wall Area: 16.50 m² Test ID: TLA-99-098a Test Date: 3/03/1999 1 of 13mm gypsum board, 140 mm wood studs on 406 mm centres with glass fibr e cavity insulation, 11 mm OSB, 16 mm airspace, 89 mm brick. Element 2: GL3_AIR13_GL3 Construction Type: Window Area: 5.70 m² Test ID: TLA-99-177a Test Date: 31/05/1999 Aluminum casement window (seals not taped). Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) Indoor Sound Level(dB) ------------------------------- ----- 50 34.6 63 32.7 80 29.3 100 29.5 125 26.0 160 27.8 200 25.1 250 23.7 315 18.4 400 19.6 500 14.7 630 13.8 800 14.0 1000 14.8 1250 10.9 1600 7.5 2000 3.0 2500-0.6 3150-1.2 4000-2.1 5000-6.9 A-Weighted Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) A-Wtd Sound Level(dBA) ------------------------------- ----- 50 4.4 63 6.5 80 6.8 100 10.4 125 9.9 160 14.4 200 14.2 250 15.1 315 11.8 400 14.8 500 11.5 630 11.9 800 13.2 1000 14.8 1250 11.5 1600 8.5 2000 4.2 2500 0.7 3150 0.0 4000-1.1 5000-6.4 Transmission Loss vs. Frequency - Spectrum Values: P a g e 20

Frequency(Hz) Transmission Loss(dB) ------------------------------- ----- 50 24.8 63 24.8 80 26.4 100 23.8 125 24.3 160 21.9 200 24.1 250 24.1 315 28.4 400 26.4 500 30.7 630 31.4 800 32.0 1000 31.5 1250 33.7 1600 35.7 2000 39.0 2500 40.5 3150 39.1 4000 39.1 5000 42.2 Single Number Ratings Outdoor Sound Level: 61 dba Indoor Sound Level: 24 dba A-wtd Level Reduction: 37 db A-wtd Reduction re Standard Source: 36 db OITC Rating: 29 db Source Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) Source Sound Level(dB) ------------------------------- ----- 50 66.0 63 64.0 80 62.3 100 59.9 125 56.9 160 56.2 200 55.7 250 54.4 315 53.4 400 52.6 500 52.0 630 51.7 800 52.6 1000 52.8 1250 51.2 1600 49.8 2000 48.6 2500 46.5 3150 44.6 4000 43.8 5000 42.3 P a g e 21

Aircraft Noise Sound Insulation Scenario Calculation Results Project: Room 165 ProjectID: Date:12/02/2014 Outdoor level: NEF 31 or Leq24 63 or Ldn 64 dba Source Spectrum details: 100% ISO 717 Road Traffic Corrections: Receiving room: Floor Area: Absorbtion: Construction Description: 68.1 ft² 80% of floor area Element 1: G13_WS140(406)_GFB152_OSB11_AIR16_BRI8 9 Construction Type: 2by6 Wall Area: 16.70 m² Test ID: TLA-99-098a Test Date: 3/03/1999 1 of 13mm gypsum board, 140 mm wood studs on 406 mm centres with glass fibr e cavity insulation, 11 mm OSB, 16 mm airspace, 89 mm brick. Element 2: GL3_AIR13_GL3 Construction Type: Window Area: 5.20 m² Test ID: TLA-99-177a Test Date: 31/05/1999 Aluminum casement window (seals not taped). Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) Indoor Sound Level(dB) ------------------------------- ----- 50 38.9 63 37.0 80 33.7 100 34.0 125 30.4 160 32.0 200 29.3 250 28.0 315 22.7 400 23.8 500 19.0 630 18.0 800 18.2 1000 19.0 1250 15.1 1600 11.7 2000 7.3 2500 3.6 3150 3.0 4000 2.1 5000-2.7 A-Weighted Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) A-Wtd Sound Level(dBA) ------------------------------- ----- 50 8.7 63 10.8 80 11.2 100 14.9 125 14.3 160 18.6 200 18.4 250 19.4 315 16.1 400 19.0 500 15.8 630 16.1 800 17.4 1000 19.0 1250 15.7 1600 12.7 2000 8.5 2500 4.9 3150 4.2 4000 3.1 5000-2.2 Transmission Loss vs. Frequency - Spectrum Values: P a g e 22

Frequency(Hz) Transmission Loss(dB) ------------------------------- ----- 50 25.1 63 25.0 80 26.7 100 24.0 125 24.6 160 22.2 200 24.4 250 24.5 315 28.8 400 26.8 500 31.1 630 31.7 800 32.4 1000 31.8 1250 34.1 1600 36.1 2000 39.4 2500 40.9 3150 39.5 4000 39.5 5000 42.6 Single Number Ratings Outdoor Sound Level: 63 dba Indoor Sound Level: 29 dba A-wtd Level Reduction: 34 db A-wtd Reduction re Standard Source: 33 db OITC Rating: 29 db Source Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) Source Sound Level(dB) ------------------------------- ----- 50 68.0 63 66.0 80 64.3 100 61.9 125 58.9 160 58.2 200 57.7 250 56.4 315 55.4 400 54.6 500 54.0 630 53.7 800 54.6 1000 54.8 1250 53.2 1600 51.8 2000 50.6 2500 48.5 3150 46.6 4000 45.8 5000 44.3 P a g e 23

Aircraft Noise Sound Insulation Scenario Calculation Results Project: Room 161 and 162 ProjectID: Date:12/02/2014 Outdoor level: NEF 29 or Leq24 61 or Ldn 62 dba Source Spectrum details: 100% ISO 717 Road Traffic Corrections: Receiving room: Floor Area: Absorbtion: Construction Description: 134.5 ft² 80% of floor area Element 1: G13_WS140(406)_GFB152_OSB11_AIR16_BRI8 9 Construction Type: 2by6 Wall Area: 36.90 m² Test ID: TLA-99-098a Test Date: 3/03/1999 1 of 13mm gypsum board, 140 mm wood studs on 406 mm centres with glass fibr e cavity insulation, 11 mm OSB, 16 mm airspace, 89 mm brick. Element 2: GL3_AIR13_GL3 Construction Type: Window Area: 10.40 m² Test ID: TLA-99-177a Test Date: 31/05/1999 Aluminum casement window (seals not taped). Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) Indoor Sound Level(dB) ------------------------------- ----- 50 37.0 63 35.1 80 31.9 100 32.2 125 28.5 160 30.0 200 27.4 250 26.0 315 20.7 400 21.9 500 17.0 630 16.1 800 16.3 1000 17.0 1250 13.2 1600 9.8 2000 5.3 2500 1.7 3150 1.1 4000 0.2 5000-4.6 A-Weighted Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) A-Wtd Sound Level(dBA) ------------------------------- ----- 50 6.8 63 8.9 80 9.4 100 13.1 125 12.4 160 16.6 200 16.5 250 17.4 315 14.1 400 17.1 500 13.8 630 14.2 800 15.5 1000 17.0 1250 13.8 1600 10.8 2000 6.5 2500 3.0 3150 2.3 4000 1.2 5000-4.1 P a g e 24

Transmission Loss vs. Frequency - Spectrum Values: Frequency(Hz) Transmission Loss(dB) ------------------------------- ----- 50 25.4 63 25.3 80 26.9 100 24.1 125 24.8 160 22.6 200 24.7 250 24.8 315 29.1 400 27.1 500 31.4 630 32.1 800 32.7 1000 32.2 1250 34.4 1600 36.4 2000 39.7 2500 41.2 3150 39.8 4000 39.8 5000 42.9 Single Number Ratings Outdoor Sound Level: 61 dba Indoor Sound Level: 27 dba A-wtd Level Reduction: 34 db A-wtd Reduction re Standard Source: 33 db OITC Rating: 30 db Source Sound Level vs. Frequency - Spectrum Values: Frequency(Hz) Source Sound Level(dB) ------------------------------- ----- 50 66.0 63 64.0 80 62.3 100 59.9 125 56.9 160 56.2 200 55.7 250 54.4 315 53.4 400 52.6 500 52.0 630 51.7 800 52.6 1000 52.8 1250 51.2 1600 49.8 2000 48.6 2500 46.5 3150 44.6 4000 43.8 5000 42.3 P a g e 25