聲音 Sound

For All Spaces: The following requirements are met: a. An annotated document is submitted and made available to occupants showing labeled zones throughout the project floor plan or similar schematic document as follows: 1. Loud zones: includes areas intended for loud equipment or activities (e.g., mechanical rooms, kitchens, fitness rooms, social spaces, recreational rooms, music rooms) 2. Quiet zones: includes areas intended for concentration, wellness, rest, study and/or privacy (e.g., restorative spaces, lactation rooms, nap rooms). 3. Mixed zones: includes areas intended for learning, collaboration and/or presentation (e.g., auditoriums, classrooms, breakout spaces). 4. Circulation zones: includes occupiable areas not intended for regular occupancy (e.g., hallways, egress, atria, stairs, lobbies). b. If Loud zones directly border Quiet zones, projects provide a plan for reprogramming or mitigating sound transmission between Loud zones and Quiet zones. WELL Core Guidance: Meet these requirements in the whole building, based on any knowledge of anticipated uses.

For All Spaces: The project provides one of the following: a. A plan developed by the project team and/or project owner that outlines acoustical solutions and a timeline for implementation with a focus on managing acoustical comfort, background noise, speech privacy, reverberation time and/or impact noise within the project boundary. b. A detailed report from a professional in acoustics that describes existing conditions, recommended solutions and measurement results with a focus on managing background noise, speech privacy, reverberation time and/or impact noise within the project boundary. These measurements are not required to adhere to the Performance Verification Guidebook requirements for on-site testing. WELL Core Guidance: Meet these requirements in the whole building, based on any knowledge of anticipated uses. References 1. Banbury SP, Berry DC. Office noise and employee concentration: Identifying causes of disruption and potential improvements. Ergonomics. 2005;48(1):25-37. Reference 2. Sailer U, Hassenzahl M. Assessing noise annoyance: An improvement-oriented approach. Ergonomics. 2000;43(11):1920-1938. Reference 3. Hänninen O, Knol A. European Perspective on Environmental Burden of Disease–Estimates for Nine Stressors in Six European Countries. Natl Inst Heal Welfare Rep. 2011:95. Reference. 4. Lamb S, Kwok KCS. A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers. Appl Ergon. 2016;52:104-111. Reference 5. Fyhri A, Aasvang GM. Noise, sleep and poor health: Modeling the relationship between road traffic noise and cardiovascular problems. Sci Total Environ. 2010;408(21):4935-4942. Reference 6. Bluhm GL, Berglind N, Nordling E, Rosenlund M. Road traffic noise and hypertension. Occup Environ Med. 2007;64(2):122-126. Reference 7. Jarup L, Babisch W, Houthuijs D, et al. Hypertension and exposure to noise near airports: the HYENA study. Env Heal Perspect. 2008;116(3):329-333. Reference 8. Chang TY, Lai YA, Hsieh HH, Lai JS, Liu CS. Effects of environmental noise exposure on ambulatory blood pressure in young adults. Environ Res. 2009;109(7):900-905. Reference 9. Belojević G, Öhrström E, Rylander R. Effects of noise on mental performance with regard to subjective noise sensitivity. Int Arch Occup Environ Health. 1992;64(4):293-301. Reference 10. Babisch W. Updated exposure-response relationship between road traffic noise and coronary heart diseases: A meta-analysis. Noise Heal. 2014;16(68):1. Reference 11. Babisch W, Beule B, Schust M, Kersten N, Ising H. Traffic noise and risk of myocardial infarction. Epidemiology. 2005;16(1):33-40. Reference 12. Sundstrom E, Town JP, Rice RW, Osborn DP, Brill M. Office Noise, Satisfaction, and Performance. Environ Behav. 1994;26(2):195-222. Reference 13. Hedge A. The open-plan office: A Systematic Investigation of Employee Reactions to Their Work Environment. Environ Behav. 1982;14(5):519-542. Reference 14. Gensler. What we’ve learned about focus in the workplace. 2012. Reference 15. Keus va

WELL Certification: 3 Pt | WELL Core: 1.5 Pt For All Spaces except Dwelling Units, Commercial Kitchen Spaces & Industrial: Note: Category 1 - Areas for conferencing, learning or speakingCategory 2 - Enclosed areas for concentrationCategory 3 - Open areas for concentration, spaces with PA systems, and areas for dining. The following requirements are met: a. Background noise levels are measured over a period of five minutes and average sound pressure levels do not exceed the following thresholds, as applicable: Sound Pressure Level Category 3 Category 2 Category 1 Points (SPL) dBA 45 40 35 Average SPL (Leq) dBC 65 60 55 3(1.5 ) dBA 55 50 45 Max SPL (LMax) dBC 75 70 65 dBA 50 45 40 Average SPL (Leq) dBC 70 65 60 1(0.5) dBA 60 55 50 Max SPL (LMax) dBC 80 75 70 For Dwelling Units: The following requirements are met: a. Average background noise levels in bedrooms, when measured over a 12-hour minimum time period (which must include the hours of 10 pm to 7 am), do not exceed 35 dBA (Leq).27 WELL Core Guidance: Meet these requirements in non-leased spaces. Consider lobbies, hallways and corridors within non- leased spaces as Category 3. To earn an additional point, also meet Category 3 levels in leased spaces. References 1. Banbury SP, Berry DC. Office noise and employee concentration: Identifying causes of disruption and potential improvements. Ergonomics. 2005;48(1):25-37. Reference 2. Sailer U, Hassenzahl M. Assessing noise annoyance: An improvement-oriented approach. Ergonomics. 2000;43(11):1920-1938. Reference 3. Hänninen O, Knol A. European Perspective on Environmental Burden of Disease–Estimates for Nine Stressors in Six European Countries. Natl Inst Heal Welfare Rep. 2011:95. Reference. 4. Lamb S, Kwok KCS. A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers. Appl Ergon. 2016;52:104-111. Reference 5. Fyhri A, Aasvang GM. Noise, sleep and poor health: Modeling the relationship between road traffic noise and cardiovascular problems. Sci Total Environ. 2010;408(21):4935-4942. Reference 6. Bluhm GL, Berglind N, Nordling E, Rosenlund M. Road traffic noise and hypertension. Occup Environ Med. 2007;64(2):122-126. Reference 7. Jarup L, Babisch W, Houthuijs D, et al. Hypertension and exposure to noise near airports: the

WELL Certification: 1 Pt | WELL Core: 1 Pt For All Spaces: The following requirements are met: a. Interior walls meet the following sound transmission class (STC) or weighted sound reduction (Rw) values. If an interior wall meets multiple categories listed, use the highest (i.e., more stringent) STC/Rw value listed. Interior Wall Type Minimum STC or Rw Between Loud zones and other occupiable spaces. 60 Between areas for conferencing, learning or sleeping and other regularly occupied 55 spaces. Between adjacent Quiet zones. 50 Between rooms for concentration and other regularly occupied spaces. 45 Between Circulation zones and regularly occupied spaces. 40 b. Doors that connect two occupiable rooms and doors to mechanical equipment rooms have a non-hollow core, minimum STC/Rw of 30 and seals at the head, jamb and base. WELL Core Guidance: Meet these requirements for the extent of developer buildout. Demising walls that separate tenant spaces from common areas or other tenant spaces should use the "Loud zones and other occupiable spaces" category.

WELL Certification: 2 Pt | WELL Core: 2 Pt For All Spaces: Option 1: Noise isolation class For walls that separate regularly occupied spaces the following requirements are met: a. The project meets the following minimum Noise Isolation Class (NIC) or Weighted Difference Level (Dw) for each wall type, as applicable. If an interior wall meets multiple categories listed, use the highest NIC/Dw value listed. Interior Wall Type Minimum NIC or Dw Between Loud zones and other occupiable spaces. 55 Between areas for conferencing, learning or sleep and other regularly occupied 50 spaces. Between adjacent Quiet zones. 45 Between rooms for concentration and other regularly occupied spaces. 40 Between Circulation zones and regularly occupied spaces. 35 OR Option 2: Speech privacy For walls that separate regularly occupied spaces the following requirements are met: a. The sum of the measured Noise Isolation Class (NIC) or Weighted Difference Level (Dw) combined with the Noise Criteria Rating (NC) or A-weighted Sound Pressure Level (LAeq) within a room achieves the following minimum values, as applicable. If an interior wall meets multiple categories listed, use the highest value listed. Minimum NIC + NC or Source Room Receiver Room Dw + LAeq Any Open areas for concentration or 80 Enclosed Loud zones Circulation zones All other occupiable areas 85 Any Open areas for concentration or 75 Circulation zones Enclosed areas for conferencing, Enclosed Quiet zones 80 learning or sleep Enclosed areas for conferencing, learning or 85 sleep Any Open

WELL Certification: 2 Pt | WELL Core: 1 Pt For All Spaces: Option 1: Reverberation time, design For projects in which the space types listed in the table cumulatively make up at least 10% of occupiable project area, the following requirements are met: a. Reverberation Time, t Space Type Space Volume, v (cubic meters) (seconds) v < 10,000 ft3(280 m 3) t ≤ 0.610 10,000 ft3(280 m 3) ≤ v ≤ 20,000 Areas for learning and conferencing 0.5 ≤ t ≤ 0.89 ft3(570 m3) v > 20,000 ft3(570 m3) 0.6 ≤ t ≤ 1.0 9 Areas for speech N/A 0.8 ≤ t ≤ 1.0 9 Areas for dining Regularly occupied areas with public address N/A t ≤ 1.05 systems v < 10,000 ft3(280m3) 0.7 ≤ t ≤ 0.89 10,000 ft3(280 m 3) ≤ v ≤ 20,000 Areas for fitness 0.8 ≤ t ≤ 1.19 ft3(570 m3) v > 20,000 ft3(570 m3) 1.0 ≤ t ≤ 1.89 v < 10,000 ft3(280 m 3) t ≤ 1.19 Areas for music rehearsal 10,000 ft3(280 m 3) ≤ v ≤ 20,000 1.0 ≤ t ≤ 1.49 ft3(570 m3) OR Option 2: Reverberation time, performance For projects in which the space types listed in the table cumulatively make up at least 10% of occupiable project area, the following requirements are met: a. Reverberation Time, t Space Type Space Volume, v (cubic meters) (seconds) v < 10,000 ft3(280 m 3) t ≤ 0.610 10

WELL Certification: 2 Pt | WELL Core: 1 Pt For All Spaces: For projects in which the space types listed in the table cumulatively make up at least 10% of occupiable project area, the following requirements are met: a. Space Type Metric 1 Point(0.5 2 Points(1 Point) Points) 0.75 for at least Minimum 75% of available 0.90 for all available ceiling area1,18 NRC/aw ceiling area Open workspaces Minimum Partial height barriers with a minimum height of 4 ft(1.2 furniture N/A m) above finished floor and a minimum NRC/aw value of 0.70 height and between all opposing workstations1 NRC/aw Minimum 0.75 for at least NRC/aw at 50% of available 0.90 for all available ceiling area Areas for ceilings ceiling area conferencing and learning Minimum 0.75 on at least NRC/aw at 0.80 on at least 25% of two perpendicular walls 25% of two walls walls Minimum 0.75 on at least Areas for NRC/aw at 50% of available 0.90 for all available ceiling area dining ceilings ceiling area WELL Core Guidance: Meet these requirements in non-leased spaces. To earn an additional point, also meet these requirements in leased spaces. References 1. Banbury SP, Berry DC. Office noise and employee concentration: Identifying causes of disruption and potential improvements. Ergonomics. 2005;48(1):25-37. Reference 2. Sailer U, Hassenzahl M. Assessing noise annoyance: An improvement-oriented approach. Ergonomics. 2000;43(11):1920-1938. Reference 3. Hänninen O, Knol A. European Perspective on Environmental Burden of Disease–Estimates for Nine Stressors in Six European Countries. Natl Inst Heal Welfare Rep. 2011:95. Reference. 4. Lamb S, Kwok KCS. A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers. Appl Ergon. 2016;52:104-111. Reference 5. Fyhri A, Aasvang GM. Noise, sleep and poor health: Modeling the relationship between road traffic noise and cardiovascular problems. Sci Total Environ. 2010;408(21):4935-4942. Reference 6. Bluhm GL, Berglind N, Nordling E, Rosenlund M. Road traffic noise and hypertension. Occup Environ Med. 2007;64(2):122-126. Reference 7. Jarup L, Babisch W, Houthuijs D, et al. H

WELL Certification: 1 Pt | WELL Core: 2 Pt For Office Spaces: The following requirements are met: a. A sound masking system is installed in open areas with Quiet zones, Circulation zones and enclosed rooms labeled as Quiet zones and produces a 1/3 octave band adjustable output signal and frequency spectrum of 100 Hz to 5 kHz. b. The sound masking system is commissioned such that the following sound pressure levels are not exceeded: 1. Open areas with Quiet zones and/or Circulation zones: 48 dBA. 2. Enclosed rooms labeled as Quiet zones: 42 dBA. c. The sound masking system is verified by a professional sound masking system installer in accordance with ASTM 1573-18 or equivalent standard. WELL Core Guidance: To earn this optimization, the requirements should be met in the whole building.

WELL Certification: 1 Pt | WELL Core: 2 Pt For All Spaces: The project achieves the following features and parts: a. Achieve two points in either Feature S03 Part 2 - Achieve Sound Isolation at Walls or Feature S05 Part 1 – Implement Sound Reducing Surfaces. b. Feature S06 Part 1 – Provide Minimum Background Sound. Note: Documents submitted for S05 Part 1 during Precertification may be used to meet requirements for S06 Part 2. WELL Core Guidance: Meet these requirements in non-leased spaces. To earn and additional point, also meet these requirements in leased spaces. References 1. Banbury SP, Berry DC. Office noise and employee concentration: Identifying causes of disruption and potential improvements. Ergonomics. 2005;48(1):25-37. Reference 2. Sailer U, Hassenzahl M. Assessing noise annoyance: An improvement-oriented approach. Ergonomics. 2000;43(11):1920-1938. Reference 3. Hänninen O, Knol A. European Perspective on Environmental Burden of Disease–Estimates for Nine Stressors in Six European Countries. Natl Inst Heal Welfare Rep. 2011:95. Reference. 4. Lamb S, Kwok KCS. A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers. Appl Ergon. 2016;52:104-111. Reference 5. Fyhri A, Aasvang GM. Noise, sleep and poor health: Modeling the relationship between road traffic noise and cardiovascular problems. Sci Total Environ. 2010;408(21):4935-4942. Reference 6. Bluhm GL, Berglind N, Nordling E, Rosenlund M. Road traffic noise and hypertension. Occup Environ Med. 2007;64(2):122-126. Reference 7. Jarup L, Babisch W, Houthuijs D, et al. Hypertension and exposure to noise near airports: the HYENA study. Env Heal Perspect. 2008;116(3):329-333. Reference 8. Chang TY, Lai YA, Hsieh HH, Lai JS, Liu CS. Effects of environmental noise exposure on ambulatory blood pressure in young adults. Environ Res. 2009;109(7):900-905. Reference 9. Belojević G, Öhrström E, Rylander R. Effects of noise on mental performance with regard to subjective noise sensitivity. Int Arch Occup Environ Health. 1992;64(4):293-301. Reference 10. Babisch W. Updated exposure-response relationship between road traffic noise and coronary heart diseases: A meta-analysis. Noise Heal. 2014;16(68):1. Reference 11. Babisch W, Beule B, Schust M, Kersten N, Ising H. Traffic noise and risk of myocardial infarction. Epidemiology. 2005;16(1):33-40. Reference 12. Sundstrom E, Town JP, Rice RW, Osborn DP, Brill M. Office Noise, Satisfaction, and Performance. Environ Behav. 1994;26(2):195-222. Reference 13. Hedge A. The open-plan office: A Systematic Investigation of Employee Reactions to Their Work Environment. Environ Behav. 1982;14(5):519-542. Reference 14. Gensler. What we’ve learned about focus in the workplace. 2012. Reference 15. Keus van de Poll M, Carlsson J, Marsh JE, et al. Unmasking the effects of masking on performance: The potential of multiple-voice masking in the office environment. J Acoust Soc Am. 2015;138(2):807-816. Reference 16. Engineers TAS of HR and A-C, American Society of Heating Refri

WELL Certification: 1 Pt | WELL Core: 2 Pt For All Spaces: The following requirements are met: a. For the following space types, the floor-ceiling construction meets the following minimum Impact Insulation Class (IIC) ratings with materials tested in accordance with ASTM E492-09, ISO 717.2 or equivalent (LnTw may be used as an equivalent metric and equivalent values may be determined by subtracting the IIC values listed below from 105): Space Type Location of Applicable Floor- Minimum Impact Insulation Ceiling Assembly Class (IIC)103 Quiet zones (except areas for concentration) Above 55 Areas for Fitness (if space is within the project Below 50 boundary) Enclosed Areas for Concentration and Above 50 Conferencing Open Areas for Concentration Above 45 Areas for Retail and Dining (if space is within Below 45 the project boundary) Note: All projects are required to submit the WELL beta feature implementation feedback form for every WELL beta feature pursued during documentation review. More information on WELL v2 beta features can be found at https://resources.wellcertified.com/articles/introducing-well-beta-features/. WELL Core Guidance: Meet these requirements for the extent of developer buildout.

WELL Certification: 2 Pt | WELL Core: 3 Pt For All Spaces: The following requirements are met: a. For the following space types, the floor-ceiling construction achieves the following Normalized Impact Sound Ratings (NISR), as measured on-site, in accordance with ASTM E1007-19, ISO 16283 or equivalent, by a professional in acoustics (LnTw may be used as an equivalent metric and equivalent values may be determined by subtracting the NISR values listed below from 105): Space Type Location of Applicable Floor- Minimum Minimum Ceiling Assembly NISR1 NISR1 1 point(2 2 points(3 points ) points ) Quiet zones (except areas for concentration) Above 52 57 Areas for Fitness (If space is within the project Below 47 52 boundary) Enclosed Areas for Concentration and Above 47 52 Conferencing Open Areas for Concentration Above 42 47 Areas for Retail and Dining (If space is within Below 42 47 the project boundary) Note: All projects are required to submit the WELL beta feature implementation feedback form for every WELL beta feature pursued during documentation review. More information on WELL v2 beta features can be found at https://resources.wellcertified.com/articles/introducing-well-beta-features/. WELL Core Guidance: Meet these requirements for the extent of developer buildout. References 1. Banbury SP, Berry DC. Office noise and employee concentration: Identifying causes of disruption and potential improvements. Ergonomics. 2005;48(1):25-37. Reference 2. Sailer U, Hassenzahl M. Assessing noise annoyance: An improvement-oriented approach. Ergonomics. 2000;43(11):1920-1938. Reference 3. Hänninen O, Knol A. European Perspective on Environmental Burden of Disease–Estimates for Nine Stressors in Six European Countries. Natl Inst Heal Welfare Rep. 2011:95. Reference. 4. Lamb S, Kwok KCS. A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers. Appl Ergon. 2016;52:104-111. Reference 5. Fyhri A, Aasvang GM. Noise, sleep and poor health: Modeling the relationship between road traffic noise and cardiovascular problems. Sci Total Environ. 2010;408(21):4935-4942. Reference 6. Bluhm GL, Berglind N, Nordling E, Rosenlund M. Road traffic noise and hypertension. Occup Environ Med. 2007;64(2):122-126. Reference 7. Jarup L, Babisch W, Houthuijs D, et al. Hypertension and exposure to noise near airports: the HYE

WELL Certification: 1 Pt | WELL Core: 0.5 Pt For All Spaces: Option 1: Install & Commission Audio Systems The following requirements are met, as applicable: a. Telecommunication and AV systems, which utilize speech enhancement technology (e.g., active digital signal processing, noise cancellation) are provided in all rooms used for conferencing, distance learning or similar remote communications and commissioned by a professional in audio engineering. b. Public address systems meet the following: 1. All public address systems are commissioned by a professional in audio engineering in accordance with NFPA 72 (Annex D) or equivalent.27 2. A commissioning report, acoustical model or similar indicates that a minimum STI 0.50 is achieved in at least 50% of regularly occupied acoustically distinguishable spaces (ADS) when measured in accordance with IEC 60268-16 or equivalent.28 c. Speech reinforcement systems are installed in at least 80% of classrooms and all spaces for large presentation spaces (e.g., lecture hall, conference center). All speech reinforcement systems are commissioned by a professional in acoustics or audio engineering and a commissioning report indicates that systems are designed to meet audio distribution requirements in accordance with ANSI/ASA S12.60 Part 1 and commissioned in accordance with ANSI/INFOCOMM A102.01:2017 or equivalent.29,30 Note: All projects are required to submit the WELL beta feature implementation feedback form for every WELL beta feature pursued during documentation review. More information on WELL v2 beta features can be found at https://resources.wellcertified.com/articles/introducing-well-beta-features/. WELL Core Guidance: Meet these requirements in non-leased spaces.

WELL Certification: 1 Pt | WELL Core: 0.5 Pt For All Spaces: The project supports individual acoustical needs through at least three of the following: a. All audio devices are managed internally by a qualified professional (e.g., IT department, mobile device management) and expectations for use are covered in the employee handbook and/or during on-boarding of new staff.31,32 b. Eligible employees can request alternative workplace arrangements to meet their individual acoustic comfort needs (e.g., the option to work remotely, different workstation location).33,34 c. A minimum of one daily quiet hour is scheduled and signage is used to indicate both the location and intended activities of Quiet and Mixed Zones identified in Feature S01 – Sound Mapping.35 d. All eligible employees and distance learners (as applicable) are provided telecommunication accessories upon request which utilize sound enhancement technology (e.g., active digital signal processing, noise-cancellation) at no cost or subsidized by at least 50%.36 Note: All projects are required to submit the WELL beta feature implementation feedback form for every WELL beta feature pursued during documentation review. More information on WELL v2 beta features can be found at https://resources.wellcertified.com/articles/introducing-well-beta-features/ . WELL Core Guidance: Meet these requirements in non-leased spaces. References 1. Banbury SP, Berry DC. Office noise and employee concentration: Identifying causes of disruption and potential improvements. Ergonomics. 2005;48(1):25-37. Reference 2. Sailer U, Hassenzahl M. Assessing noise annoyance: An improvement-oriented approach. Ergonomics. 2000;43(11):1920-1938. Reference 3. Hänninen O, Knol A. European Perspective on Environmental Burden of Disease–Estimates for Nine Stressors in Six European Countries. Natl Inst Heal Welfare Rep. 2011:95. Reference. 4. Lamb S, Kwok KCS. A longitudinal investigation of work environment stressors on the performance and wellbeing of office workers. Appl Ergon. 2016;52:104-111. Reference 5. Fyhri A, Aasvang GM. Noise, sleep and poor health: Modeling the relationship between road traffic noise and cardiovascular problems. Sci Total Environ. 2010;408(21):4935-4942. Reference 6. Bluhm GL, Berglind N, Nordling E, Rosenlund M. Road traffic noise and hypertension. Occup Environ Med. 2007;64(2):122-126. Reference 7. Jarup L, Babisch W, Houthuijs D, et al. Hypertension and exposure to noise near airports: the HYENA study. Env Heal Perspect. 2008;116(3):329-333. Reference 8. Chang TY, Lai YA, Hsieh HH, Lai JS, Liu CS. Effects of environmental noise exposure on ambulatory blood pressure in young adults. Environ Res. 2009;109(7):900-905. Reference 9. Belojević G, Öhrström E, Rylander R. Effects of noise on mental performance with regard to subjective noise sensitivity. Int Arch Occup Environ Health. 1992;64(4):293-301. Reference 10. Babisch W. Updated exposure-response relationship between road traffic noise and coronary heart diseases: A meta-analysis. Noise Heal. 2014;16(68