Architectural Acoustics
|
|
- John Wheeler
- 5 years ago
- Views:
Transcription
1 Architectural Acoustics SUSPENDED CEILING SYSTEMS A Sustainable Integrated Ceiling Platform Presented by: United States Gypsum Company AIA Provider #: K011
2 Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-aia members are available upon request. CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. This course is registered with AIA
3 Course Description A discussion of the physics and nature of sound - this course will use details and examples to cover design criteria such as STC, CAC, NRC, factors of sound control such as use of building materials, flanking paths, and ASTM testing methods related to interior partitions in the architectural environment.
4 Learning Objectives 1. Understanding Principles of Sound Control Construction such as the physics of sound, sound absorption and reverberation. 2. Be able to define STC, CAC and NRC and clearly recognize the differences and benefits of each. 3. Explain the difference between sound isolation & sound transmission. 4. Comprehend the importance of sound design solutions though Construction Details
5 CRITICAL ISSUES in DESIGN Fire Resistance Sound Control Full spectrum of performance attributes Moisture Control Abuse Resistance Aesthetics Sustainability
6 Architectural Acoustics Involves two main aspects of Sound Sound Transmission Speech Privacy Sound Absorption Speech Intelligibility
7 Architectural Acoustics Involves two main aspects of Sound Sound Transmission: That is sound that is transmitted from one space or room to another. The sound can not only travel directly through the wall as indicated, but can also travel from above the ceiling or from below the floor. The aspect of sound deals with Speech Privacy. Sound Absorption: This has to do with sounds within a space or room. Direct sound from a speaker must be controlled so that unwanted sounds, or reflected sounds within the room do not interfere with Speech Intelligibility. 7
8 Impact of Unwanted Sound Employee satisfaction Interruptions Productivity Loss Confidentiality Health and safety It is well established that proper noise control can significantly increase the output and efficiency of workers. Even moderately loud noises can produce auditory fatigue -- an acoustic term for "frazzled nerves."
9 Definitions Wave Length Atmospheric Pressure Complete Cycle The wave length of a sound is one complete cycle of the particles of a medium, usually air moving from their state of rest to a positive pressure back through their starting point and then to equal point of negative pressure and back to their state of rest. Vibrating objects create fluctuations in air pressure as the particles of air move back and forth, these air particles move through the air in a wave motion and are interpreted by the ear as sound.
10 Definitions Frequency The number of cycles per second. Measured in Hertz (Hz) 1 Second
11 Frequency Ranges Acoustical Lab Tests Human Speech Music 20 Hz Human Hearing Range 20 khz Frequency Hz This graph shows the normal range of human hearing. 20 Hz to 20,000 Hz. Acoustical Lab tests are conducted in the range from 63 Hz to 8000 Hz. This is greater than the range of speech but certainly does not cover the full range of human hearing.
12 Definition Velocity of Sound - 1,130 ft/sec Greater the Frequency the shorter it s wave length. Frequency (Hz) Wave length (ft) ½ Since we know that the speed of sound is 1,130 feet per second and that it s Frequency is the number of cycles per second. We can do the math and see that a sound of 63 cycles per second has a wave length of approximately ft in order for that sound to travel 1,130 feet in one second.
13 Definition Decibels (db) Ø The unit of measure for Sound Pressure Ø Sensed by the ear as Loudness.
14 Amplitude of Common Sounds db Example Level 140 Jet engine at 75 ft. Deafening 120 Rock Concert Painful 80 Loud stereo music Harmful 60 Highway traffic Annoying 50 Office environment Moderate 20 Whisper Barely Audible 10 Human breathing Very Faint Various levels of AMPLITUDE of some Common Sounds are shown by the Decibel level in the left column. 140 db level is considered the threshold of pain. At this level of sound, the human ear will be permanently damaged. At 80 db, the human ear over a sustained period of time can be permanently damaged.
15 Amplitude of Common Sounds db Example Level 140 Jet engine at 75 ft. Deafening 120 Rock Concert Painful 80 Loud stereo music Harmful 60 Highway traffic Annoying 50 Office environment Moderate 20 Whisper Barely Audible 10 Human breathing Very Faint A normal Office Environment is considered to be in the range of 40 to 60 Decibels. It is important to note, that at a Whisper, the sound level is still 20 db. Therefore, if a noise being generated at say, 80 db is to be reduced to a Whisper, the difference in sound level is 60dB. We find that a partition with an STC rating of around 60 STC will be effective in reducing 80 db to the acceptable level of a Whisper.
16 Acoustics & Building Design Sound Absorption Sound Transmission
17 Noise Reduction Coefficient (NRC) First let s take a look at Sound Control within a space or Noise Reduction. One of the industry standards established to help you make relative comparisons of acoustical products is called NRC or Noise Reduction Coefficient. A ceiling panel s ability to reduce reverberation in a space is expressed as a Noise Reduction Coefficient (NRC). NRC can be defined as the average amount of sound energy a material absorbs at the frequencies of 250 Hz, 500Hz, 1000Hz and 2000Hz. ASTM C423 defines the procedure to determine ceiling panel NRC.
18 Noise Reduction Coefficient (NRC) Average amount of sound energy a material absorbs at the frequencies of 250 Hz, 500 Hz, 1000 Hz and 2000 Hz. The higher the NRC, the less sound is reflected (echo).
19 Measurement of Sound Absorption The standard ASTM Test Method for determining the Sound Absorption (NRC) of Acoustical Materials is ASTM C423 (NRC) A specimen of material approximately 8 feet square is placed in the center of the room on an elevated platform 16 high. Prior to placing the acoustical material in the room, the reverberation time is determined. Then, the reverberation time is measured after the placing of the acoustical material, and the difference in the two measure times is used to calculate the effectiveness of the acoustical material to absorb sound at each frequency and thus establish the Absorption Coefficients. Rotating Diffuser Sound Source Test Sample on Std Plenum Diffuser Panel
20 Noise Reduction Coefficient Frequency (Hz) , , , The absorption of a product is measured at 6 frequencies. Ceiling manufactures take 4 frequencies and average them. The next slide walks thru the calculations.
21 Noise Reduction Coefficient NRC (Noise Reduction Coefficient): Mathematical average of the absorption coefficients at: 250Hz Hz + 1,000 Hz + 2,000 Hz 4 21
22 Noise Reduction Coefficient NRC (Noise Reduction Coefficient): Mathematical average of the absorption coefficients at: 250Hz Hz + 1,000 Hz + 2,000 Hz 4 Example: NRC=
23 Common Building Materials NRC (Absorption) STC (Transmission) Wood Plaster Gypsum Board Non-Perforated Metal First we have a group of hard, dense materials that are good at stopping sound transmission but are poor at absorption.
24 Common Building Materials NRC (Absorption) STC (Transmission) Perforated Metal Polystyrene Fiberglass Next we have a group of products that are good at Noise Reduction because they are very porous, however, sound passes through the material making them poor at stopping sound transmission. Mineral Fiber Finally we have a mineral fiber panel. This product has a unique balance of Sound Absorption and Sound Transmission reducing properties. For this reason most Acoustical Ceiling Panels are a mineral-fiber composition.
25 Noise Reduction Coefficient NRC of.50 is required for a panel to be considered acoustical. (Industry Standard) Open plan environments require higher NRC levels.70 in generally considered a minimum NRC for open office applications.
26 Definition Reverberation The continuation of sound reflections within a space after the source has ceased. A basic acoustical property of a space. Think of it as an echo. It can enrich speech and music in all areas -- or it can slur speech and generate higher noise levels throughout a room, depending upon the room volume, timing, and absorption. In rooms used for speech or music, reverberation time should be long enough to enhance the blending of sounds, but short enough so there is no excessive overlapping and confusion. In general, the larger the room, the longer the reverberation time because sound waves must travel farther between absorptive surfaces.
27 Direct & Indirect Sound Indirect sound Direct sound Reverberation can have a Positive & Negative Effects Too much is distracting Negative effect if the distance the indirect sound has to travel to reach the audience is too far. Enhanced or amplified by indirect sounds which are reflected off walls and the ceiling Controlled with increased absorption
28 Recommended Reverberation times in Seconds Speech Small offices 0.50 to 0.75 sec Class Rooms to 1.00 sec. Work Rooms to 2.00 sec. Music Rehearsal Rooms to 1.00 sec. Chamber Music to 1.50 sec. Orchestra/Choral /Church to 2.00 sec. Organ Music 2.00 to 2.25 sec.
29 Sound Masking Acoustical ceilings can be very effective at reducing the sound which is reflected back into a space or transmitted into adjacent areas. In some environments, however, acoustical ceilings alone cannot provide the level of control required. In these situations, sound masking is a sensible option for additional acoustical control. This means installing a masking- noise system. Masking noise mimics a ventilation system noise and is created with loud speakers above the ceiling tile. The masking system raises the background sound level to mask distracting noises
30 Sound Masking Engineered Sound Electronically produced sound Ambient background sound is beneficial in exceptionally quiet environments A supplement to acoustical ceilings
31 Sound Masking Covers noise and conversation not absorbed or blocked Works by electronically producing a unique sound spectrum similar to that of softly blowing air Masking system raises the background sound level to mask distracting noises. Increases speech privacy
32 Sound Transmission Room to Room Ceilings & Partitions
33 Sound Transmission CAC Room to Room - Ceilings CAC CAC is an industry standards used to compare the relative effectiveness of different assemblies in reducing sound transmission. CAC is used for ceilings and represents a double pass through the assembly.
34 CAC Between Rooms with a Common Ceiling Plenum (ASTM E1414, CAC) Source Room Sound Source Revolving Microphone Receiving Room 60 STC Wall Revolving Microphone ASTM E 1414 is used to measure sound transmission through a ceiling system. This ceiling test is commonly referred to as a two pass test since the sound travels through the ceiling on both sides of the wall. In E 1414 a common ceiling is installed with a high STC partition dividing the space into two rooms. A source sound is generated in one room and the sound levels are recorded. The source sound goes up through the ceiling in the source room and down through the ceiling above the receiving room. Sound levels are recorded by a microphone in the receiving room to determine the amount of sound transmission loss through the ceiling material. The CAC rating approximates the sound transmission loss between the two rooms in decibels.
35 CAC Between Rooms with a Common Ceiling Plenum (ASTM E1414, CAC) Source Room Sound Source Revolving Microphone Receiving Room 60 STC Wall Revolving Microphone For example, if a source room has a noise level of 60 db and a ceiling panel with a CAC of 40 is installed the sound level in the receiving room will be approximately 20 db (60-40). Rating which ranks the performance of a product in a controlled test environment with regards to the transmission of sound. Sound transmission loss attributed to the acoustical ceiling. CAC performance is most critical in closed office applications where privacy is a major consideration
36 Sound Transmission Class (STC) Room to Room - Ceilings STC STC is single pass through assembly and STC is a single number system to determine sound redux in partition.
37 Sound Transmission Class (STC) ASTM E 90 - Two Room Method Source Room Sound Source Revolving Microphone STC Receiving Room Revolving Microphone The standard ASTM Test Method for measuring Sound Transmission through Wall Systems is similar to testing Ceiling Systems in that two chambers are used during the test. A common high CAC barrier ceiling system is installed (such as concrete) to prevent sound transmission through the ceiling. A dividing wall system is construct for testing. Again a Source Sound is generated in the Source Room, and sound level measurements are recorded by a Revolving Microphone located in the Receiving Room to determine the amount of sound transmission loss through the Wall Assembly.
38 STC Values - Common Wall Designs
39 Sound Control How to achieve Sound Attenuation Increase STC by: Usually the Dimension of the Framing 3 5/8 1. Isolation 2. De-coupling 3. Absorption 65 db 15 db 4. Mass STC = 50 TL = 50 db resilient channel Drywall 50 STC Insulation either SAFB or fiberglass to absorb sound energy
40 Sound Control The Five FACTORS OF SOUND CONRTORL TRANSMISSION : Usually the Dimension of the Framing 3 5/8 1. ISOLATION or the separation of materials from one side a wall from the other side sometimes referred to as de-coupling. 2. MASS - use of a high density material in these examples we will use Gypsum Panels. 3. ABSORPTION - commonly cavity insulation material. 4. DE-COUPLING or inelasticity by the use a material such as Lead resilient channel Drywall 65 db 15 db 50 STC Insulation either SAFB or fiberglass to absorb sound energy
41 25 ga. Steel stud Single Layer 5/8 Type X STC 40 Let s now review the concept of enhanced combination effect with a few wall assembly sections showing typical constructions with increasing STC performance. We begin with a typical gypsum wall partition assembly 25 gauge 3 and 5/8 metal studs with framing spaced 24 inches on center and a single layer of 5/8 Type X gypsum wallboard placed on each side. The resulting laboratory performance is a STC of 40. Sound Transmission Class or STC is a logarithmic calculation. This essentially means that there is a 40 db (decibel) loss through the constructed assembly if built as tested.
42 Absorption Add Insulation STC 49 In the second assembly we have added 3 of insulation (tested with SAFB Sound Attenuation Fire Blankets) or high melt mineral wool insulation. The resulting STC increases to 49. Every 10 points of increased STC performance means that the construction is twice as quiet or effective in reducing the sound vibration energy through the constructed assembly at the tested sound frequencies. Adding 3 of mineral wool insulation almost doubles the performance of the wall assembly in terms of STC performance.
43 Decoupling Add Resilient Channel STC 54 In the third wall section, we have added a component known as a resilient channel made of 25 gauge steel. This component is designed to de-couple or assist in separating and isolating sound vibration from one side of the wall partition to the other. Resilient channel is installed horizontally perpendicular to the metal framing and will be used for the attachment of the gypsum wallboard on one side of the assembly. It is important to remember that fastener should be engaged through the 5/8 Type X gypsum wall panel and into the resilient channel, but not into the 3 and 5/8 stud. Doing so will short circuit the STC performance and re-connect the sound bridge through the wall assembly. Proper installation results in an additional 5 points of STC a noticeable improvement.
44 Mass Add Second Layer of 5/8 Type X STC 61 Lastly we will add a second layer of mass in this case 5/8 Type X gypsum panels to each side of the wall partition assembly. The additional mass in combination with the other techniques used absorption and de-coupling results in an additional 7 points of STC performance an excellent improvement again
45 25 ga. Steel stud Single Layer 5/8 Type X STC 40 Absorption Add Insulation STC 49 STC 54 Decoupling Add Resilient Channel Mass Add Second Layer of 5/8 Type X As you can see the enhanced combination effect or the combination of factors of sound control work effectively together to increase performance dramatically 4 times more quiet from the first assembly diagramed to the last while maintaining a small footprint and keeping construction costs affordable. STC 61
46 Improving Sound Transmission Loss Rules of Thumb Doubling Partition Width = 5 db Transmission Loss Improvement Doubling MASS = 5 db Transmission Loss Improvement By only using the factors or either MASS or ISOLATION, it is difficult to achieve high STC ratings. This can however be achieved by combining two or more positive principles of sound transmission.
47 STC 53 2 Layers 5/8 Gypsum Board Insulation Sound Path STC 29 Unsealed This animation first constructs a wall system that can achieve an STC of 53 Then shows that without proper AIR SEAL or Acoustical Sealant, the STC rating can be reduce to just 29STC, unsealed.
48 STC 53 Acoustical Sealant 2 Layers 5/8 Gypsum Board Insulation Correctly Sealed This image constructs a wall system that can achieve an STC of 53. Then it shows that with the proper AIR SEAL or Acoustical Sealant, the STC rating is maintained.
49 Sound Transmission Structure Ceiling High STC For wall assemblies with an STC of greater than 50, we recommend extending the wall directly to the underside of the structure. This will assure the sound control between adjacent rooms. Floor STC = > 50
50 Sound Transmission Structure For wall assemblies with and STC less than 50, it is recommended to first install the ceiling, and then install the partition to the underside of the ceiling. This way, there is sound control compatibility between the wall and the ceiling. Most ceiling manufacturer s make a ceiling system that has a CAC rating of An 6 inch blanket insulation installed above the partition will generally increase the CAC of the ceiling system by 5 points. Ceiling STC = < 50 Floor
51 Sound Control Negative Impacts FLANKING PATHS & AIR LEAKS. This can be correct by the proper installation of Acoustical Sealant. Flanking paths are normally associated with openings in the wall system, such as doors, windows, electrical boxes, and HVAC ducting. Acoustical sealant should be used at all partition perimeters, cutouts for lights, cabinets, pipes, ducts, and electrical boxes. A STC rating of a desired assembly from an accredited laboratory is a first step in achieving your sound performance goals.
52 Sound Control Negative Impacts Flanking Paths Electrical Boxes: Especially back-to-back HVAC Perimeter Seals Doors Other penetrations Example: Back-to-back electrical boxes
53 Flanking Paths Better Best FLANKING PATHS are weaknesses in the wall system regarding Sound Transmission such as when electrical boxes are installed back-to-back for economical reasons. Even electrical boxes that are circuited together within a common wall can allow a path for sound to travel through. Example 2 is an improvement when boxes must be in the same cavity. As always boxes should be caulked and in this case the cavity is filled with insulation. Example 3 is the proper installation.
54 Flanking Paths CUTOUTS Cutouts for Electrical panels or medicine cabinets are another problem area. Material mass that has been removed from the wall should be replaced behind the cutout and sealed. An equal mass of drywall used to seal the area is a economical solution. Cabinet
55 HVAC Far to often seen, this mechanical supply design negates the construction of good STC / CAC assemblies.
56 Flanking Paths HVAC Improving Sound Performance Placing a couple of 90 degree transitions in the layout will significantly improve the condition.
57 Since a door is usually the weak link in a partition, care should be taken to not place doors adjacent to each other on a corridor. This condition in an office building or school creates real sound problems
58 Room Layout The more often sound turns and reflect off of surfaces the more sound energy will be reduced. Quiz Password: 00AA01DE
59 Thank You! Architectural Acoustics Quiz Link
Corporate Environments
Acoustics and the Impact on Corporate Environments falconproducts.com Achieving High-Quality Acoustics in Corporate Settings Knowledge is power. Here s what you need to know about sound, noise and creating
More informationNoise Control Of Building
International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT) - 2016 Noise Control Of Building Sandesh G. Jharbade Civil Department P.R.M.I.T & R, Badnera Badnera, India Mayur
More informationBY: United Plastics Corporation 511 Hay Street Mount Airy, NC (800)
HSW/STC SOUND ENVIRONMENT LEARNING AND HEALING BY: United Plastics Corporation 511 Hay Street Mount Airy, NC 27030 (800) 577-3931 www.dbsoundcontrol.com Learning Objectives Upon completion of this course,
More informationNOISE CONTROL OF BUILDINGS
A Seminar report On NOISE CONTROL OF BUILDINGS Submitted in partial fulfillment of the requirement for the award of degree Of Civil SUBMITTED TO: SUBMITTED BY: www.studymafia.org www.studymafia.org Acknowledgement
More informationSound Attenuation. Slide 1 of 48. PAC International Inc START
Sound Attenuation START www.pac-intl.com Slide 1 of 48 Sound Attenuation PAC International 7310 Smoke Ranch Rd Suite "E" Las Vegas, NV. 89128 Course Number: XXXXXX Learning Units: 1.00 PAC International
More informationInnovations in Acoustical Ceilings for Today's Flexible Interiors
Innovations in Acoustical Ceilings for Today's Flexible Interiors Comprehensive Acoustical Quality for Offices, Healthcare Facilities, and Classrooms Course Number K1504W A Credit Designation: HSW Learning
More informationFreedomd From Distraction
A C O U S T I C S Freedomd From Distraction n I UNDERSTANDING THE ACOUSTICS OF OPERABLE WALLS SOUND IS... 1. Generated In specifying operable partitions or planning multi-use space for your facility, no
More informationAcoustical Engineering Solutions.
Acoustical Engineering Solutions. Meeting IBC Acoustical Requirements for Multifamily Construction By Scott Harvey, PE, INCE Bd. Cert. Phoenix Noise & Vibration Frederick, Maryland Copyright Materials
More informationOptimizing Ceiling Systems and Lightweight Plenum Barriers
Optimizing Ceiling Systems and Lightweight Plenum Barriers Gary S. Madaras, ROCKFON, Chicago, Illinois Andrew E. Heuer, NGC Testing Services, Buffalo, New York Acoustics is one of the lowest scoring indoor
More informationASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT. Rendered to: ACOUSTIBLOK, INC. WALL ASSEMBLY: #1
ASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT Rendered to: ACOUSTIBLOK, INC. WALL ASSEMBLY: #1 TYPE: Standard 8" Hollow Block Wall With Single Stud Wall Construction SOUND ISOLATION MATERIAL: Acoustiblok
More informationIAC Acoustics Noise-Foil Sound Absorption Panels for Industrial Applications. Dan O Brien
IAC Acoustics Noise-Foil Sound Absorption Panels for Industrial Applications Presented by Dan O Brien Industrial Business Unit Manager IAC Acoustics, A Division of Sound Seal 401 Airport Road North Aurora,
More informationOffice Soundproofing. Office Soundproofing & Soundproofing Solutions
Office Soundproofing Office Soundproofing & Soundproofing Solutions Office Soundproofing Proper office design will factor in the sound levels within the office space and determine where office noise control
More informationStandard Practice for Installing Sound-Isolating Lightweight Partitions 1
Designation: E 497 99 Standard Practice for Installing Sound-Isolating Lightweight Partitions 1 This standard is issued under the fixed designation E 497; the number immediately following the designation
More informationA few amazing facts about Acoustiblok
A few amazing facts about Acoustiblok A standard metal stud 5/8" gypsum board wall with only 1 layer of 16 oz. Acoustiblok has better sound reduction, (STC 53*, Riverbank Laboratories), than a solid 12"
More information21 ST CENTURY LEARNING ACOUSTICS. Steve Meszaros, M.Sc., P.Eng Acoustical Technical Director / Associate
21 ST CENTURY LEARNING ACOUSTICS Steve Meszaros, M.Sc., P.Eng Acoustical Technical Director / Associate Introduction Steve Meszaros B.Sc. (Mechanical Engineering) University of Manitoba M.Sc. (Biosystems
More informationWhat is Noise? In daily life, noise means unwanted sound.
NAME PIYUSH ZINZALA DHAVAL KARKAR JEEGAR VARIYA YASH BANKER CHINTAN BAROT ROLL NO. 14SA162 14SA122 14SA134 14SA180 14SA120 What is Noise? In daily life, noise means unwanted sound. As you have no doubt
More informationSound Insulation for Glass and Panel
SEMINAR ON TESTING AND CERTIFICATION OF GREEN CONSTRUCTION MATERIALS Sound Insulation for Glass and Panel Ir Dr CHONG Fan HIGHLIGHTS 1. Sound insulation of building construction 2. Sound insulation tests
More informationNoise and Vibration Control in Wood-Framed, Multi-Family Buildings
Noise and Vibration Control in Wood-Framed, Multi-Family Buildings Presented by Scott Harvey, PE, INCE Bd. Cert. Disclaimer: This presentation was developed by a third party and is not funded by WoodWorks
More informationTHE ROLE OF ACOUSTICS IN THE CONTEXT OF GREEN BUILDINGS
THE ROLE OF ACOUSTICS IN THE CONTEXT OF GREEN BUILDINGS Coralie van Reenen INTRODUCTION The Green Building Council of South Africa (GBCSA) recognises good acoustics as a point of merit under the Indoor
More informationTechnical Features Sound Construction Design Aid For Office Acoustics
Technical Features Sound Construction Design Aid For Office Acoustics HOW TO DETERMINE COMPOSITE SOUND ISOLATION RATINGS FOR OFFICES BY COMBINING PERFORMANCE OF WALLS, CEILINGS AND FLOORS by Vincent M.
More information600 Series 56 STC. Results Apply to 600 Series; Individual and Pairs. Quentin J. Schrader. Lab Code: /17/2014
UNCLASSIFIED HUFCOR TEST NO.: A1406663 Hufcor Testing Facilities P.O. Box 591 2101 Kennedy Rd. Janesville, WI 53547 USA 600 Series 56 STC Results Apply to 600 Series; Individual and Pairs Quentin J. Schrader
More informationAcoustics and Classrooms BARD MANUFACTURING COMPANY REGISTERED AIA PRESENTER VAUGHAN SMITH
Acoustics and Classrooms BARD MANUFACTURING COMPANY REGISTERED AIA PRESENTER VAUGHAN SMITH Acoustics and Classrooms SOURCES OF NOISE ACOUSTICAL TERMS AND DEFINITIONS ANSI STANDARD OCCUPIED AND UNOCCUPIED
More informationTechnical Features Sound Construction How To Avoid Flanking Sound In Your Acoustical Design
Technical Features Sound Construction How To Avoid Flanking Sound In Your Acoustical Design THE PRESENCE OF FLANKING SOUND IS THE SINGLE MOST SIGNIFICANT DIFFERENCE BETWEEN LABORATORY AND FIELD PERFORMANCE
More informationLook ~ do you see the noise leaking through that ceiling?
Look ~ do you see the noise leaking through that ceiling? Gary S. Madaras a) Rockfon 4849 S. Austin Ave. Chicago, IL 60638 ABSTRACT Oftentimes, acousticians must convey complex, three-dimensional, acoustical,
More informationACOUSTICAL INFORMATION
ACOUSTICAL INFORMATION Alpro has been successfully used for over 50 years to provide sound absorption for a variety of environments from gymnasiums and auditoriums to water treatment plants and outdoor
More informationPROMATECT 100 Solid Partitions
PROMATECT 100 Solid Partitions 08 9445 8300 info@progressivematerials.com.au progressivematerials.com.au Partitions General Information Introduction Partitions and external walls are used to separate buildings,
More informationKnock on Wood: Acoustical Design in Mass Timber Structures
Knock on Wood: Acoustical Design in Mass Timber Structures Denis Blount Associate Arup Acoustics, AV, Theatre (Seattle) Disclaimer: This presentation was developed by a third party and is not funded by
More informationEnhancing Acoustic Performance through the use of Window Shade Fabric White Paper
Enhancing Acoustic Performance through the use of Window Shade Fabric White Paper As architecture and design evolve, more demand can be seen for obtaining creative solutions for occupancy comfort. In designing
More informationIdentifying impacts of amplified sound in commercial spaces below residences in mixed-use buildings
Identifying impacts of amplified sound in commercial spaces below residences in mixed-use buildings Tyler Adams a) Mei Wu b) Mei Wu Acoustics 3 Twin Dolphin Drive, Suite 190, Redwood City, CA 94065-1516
More informationSound Control Manual Sound Construction Room Acoustics
Sound Control Manual Sound Construction Room Acoustics Acoustics is usually very broadly defined as "the science of sound." The term "Room Acoustics" can be more narrowly defined as the shaping and equipping
More informationAcoustical Characteristics of Carpet
CRI TECHNICAL BULLETIN Acoustical Characteristics of Carpet Carpet is an outstanding sound absorptive material. When properly selected, carpet absorbs airborne noise as efficiently as many specialized
More informationUNDERSTANDING SOUND/NOISE
UNDERSTANDING SOUND/NOISE Noise has been an environmental issue throughout the ages. Ancient Romans complained about chariots rattling on cobble stone roadways. Renaissance metal smiths often lost their
More informationPROMAtect H 4 hour walls. progressivematerials.com.au
PROMAtect H 4 hour walls 08 9445 8300 info@progressivematerials.com.au progressivematerials.com.au Partitions General Information Introduction Partitions and external walls are used to separate buildings,
More informationSECTION GYPSUM BOARD SYSTEM
PART 1 GENERAL 1.1 RELATED DOCUMENTS SECTION 09 29 00 GYPSUM BOARD SYSTEM A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 specification sections,
More informationInnovations In Sound Control
Innovations In Sound Control by Bonnie Schnitta New materials and techniques make it easier to manage noise in home theaters and other loud spaces When I formed my acoustical consulting company in 1981,
More informationHospitals Soundproofing. Hospital Soundproofing & Soundproofing Solutions
Hospitals Soundproofing Hospital Soundproofing & Soundproofing Solutions Hospital Soundproofing Clean room environments impose sanitation constraints diametrically opposed to the basic construction of
More informationREGUPOL AMERICA ACOUSTICAL PERFORMANCE TEST REPORT
REGUPOL AMERICA ACOUSTICAL PERFORMANCE TEST REPORT SCOPE OF WORK ASTM E90 SOUND TRANSMISSION LOSS TESTING ON A STEEL STUD WALL ASSEMBLY WITH SONUSCLIP REPORT NUMBER H7677.03-113-11-R0 TEST DATE 11/20/17
More informationacoustics 101 The following is a brief tutorial that describes the use of a flooring underlayment as an acoustic barrier.
acoustics 101 The following is a brief tutorial that describes the use of a flooring underlayment as an acoustic barrier. 1 why use a floor underlayment? IT S WHAT S UNDERNEATH THAT COUNTS - BENEFITS OF
More informationAPPLICATIONS HVAC Acoustics and Vibration
APPLICATIONS HVAC Acoustics and Vibration Technical Development Program Technical Development Programs (TDP) are modules of technical training on HVAC theory, system design, equipment selection and application
More informationE R0 ACOUSTICAL PERFORMANCE TEST REPORT ASTM E90. Rendered to: PAC INTERNATIONAL, LLC
ACOUSTICAL PERFORMANCE TEST REPORT ASTM E90 Rendered to: PAC INTERNATIONAL, LLC TYPE: Wall, Steel (0.018" / 25 ga), RSIC-V, STC 67 DATA FILE NO: E4748.01A STC 67 OITC 56 Test Specimen Identification: (Source
More informationSECTION GYPSUM BOARD SYSTEM
PART 1 GENERAL 1.1 RELATED DOCUMENTS SECTION 09 29 00 GYPSUM BOARD SYSTEM A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 specification sections,
More informationAssociation of Australian Acoustical Consultants Guideline for Commercial Building Acoustics. May 2011
Association of Australian Acoustical Consultants Guideline for Commercial Building Acoustics TABLE OF CONTENTS 1.0 INTRODUCTION... 3 2.0 OBJECTIVES... 3 3.0 CRITERIA... 5 2 1.0 INTRODUCTION Members of
More informationUniversity of Idaho Lionel Hampton School of Music
Facility Acoustic Study For the University of Idaho Lionel Hampton School of Music Ridenbaugh Hall & Music Building Moscow, Idaho Update: June 25, 2018 CKA Project Number: 18044 C A S T E L L A W K O M
More informationIntroduction to Acoustics:
Introduction to Acoustics: How I Learned to Stop Worrying and Love the Sound Level Meter Samantha Rawlings, LEED AP BD+C For IFMA New Mexico 07.14.2015 Veneklasen Associates INTRODUCTION Consultants in
More informationREPORT 3933 US ROUTE 11, CORTLAND, NEW YORK, 13045
REPORT 3933 US ROUTE 11, CORTLAND, NEW YORK, 13045 FOR THE SCOPE OF LAB CODE 100402-0. Order No. 100667931 Date: May 23, 2012 REPORT NO. 100667931CRT-001a SOUND TRANSMISSION LOSS TEST AND CLASSIFICATION
More information4-Acoustics: Background
4-Acoustics: Background In the past acoustics for buildings especially concert halls was done by luck. A design would be done that worked well and then it would be mimicked. Other times awful designs emerged
More informationCopyright 2018 American Wood Council 1
for Wood Frame Assemblies BCD800 Jason Smart, P.E. Manager, Engineering Technology American Wood Council The American Wood Council is a Registered Provider with The American Institute of Architects Continuing
More informationARCHITECTURAL AND STRUCTURAL NOISE CONTROL SOLUTIONS
13080/KIN BuyLine 1062 Providing solutions to common noise and vibration problems since 1958. ARCHITECTURAL AND STRUCTURAL NOISE CONTROL SOLUTIONS IIC 51 STC 72 FLOOR/CEILING STC 84 IIC 70 FLOOR/CEILING
More informationRESILIENT SOUND ISOLATION CLIPS
RESILIENT SOUND ISOLATION CLIPS For Wall & Floor Ceiling Assemblies RSIC-1 Resilient Sound Isolation Clip Isolation Clip RSIC-1 Isolation Clip Soundproofing Products SonexTM Ceiling & Wall Panels Sound
More informationHow to modify a tested fire-rated wall to improve its STC sound rating, while maintaining its official fire-rated qualification
How to modify a tested fire-rated wall to improve its STC sound rating, while maintaining its official fire-rated qualification Harold FORESTER, Eng. 1 Forester Controls Canada ABSTRACT Local regulatory
More informationAcoustic Performance
Acoustic Performance From LEED: BD& C for Schools IEQ P3 Requirements: Design classrooms and other core learning spaces to include sufficient sound-absorptive finishes for compliance with the reverberation
More informationReverberation Time Design for IM Building Addition
INTRAMURAL BUILDING Reverberation Time Design for IM Building Addition Project 1 Andrew Brouwers Kelly Cerri Melissa Consiglio Michael Devaney Kenna Markel March 20, 2014 Table of Contents Introduction......................................................
More informationNINTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, ICSV9 CASE STUDY OF A HOSPITAL ATRIUM WITH OVERLOOKING PATIENT ROOMS
Page number: 1 NINTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, ICSV9 CASE STUDY OF A HOSPITAL ATRIUM WITH OVERLOOKING PATIENT ROOMS Sarah B. Knight, Jack B. Evans, P.E., Chad N. Himmel JEA COUSTICS
More informationAnalysis 4 Acoustical Analysis of Interior Partitions- Breadth
Analysis 4 - Breadth Background Good classroom acoustics are vital when the teaching and learning process relies strongly on verbal communication. Transmission of noise from one learning environment to
More informationImportant Notice. QuietRock by PABCO Gypsum Cherry Street Newark, CA
Important Notice In August 1, 2013, PABCO Gypsum, a division of PABCO building products, LLC acquired the QuietRock business and operations from Serious Energy, Inc. Serious Energy, Inc. corporate structure
More information5045 Orbitor Dr., Building 8, Suite 200, Mississauga, ON L4W 4Y4 Phone: (905)
TYPICAL INSTALLATION PROCEDURES FOR ACOUSTIC ENCLOSURES VG-QT-1669 Rev. 0 Page 1 of 16 GENERAL INFORMATION VG Engineering Noise Control Enclosures are custom configured to suit customer requirements. Enclosures
More informationASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT. Rendered to: THERMA-TRU DOORS. SERIES/MODEL: Classic-Craft, Fiber Classic, and Smooth Star
ASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT Rendered to: THERMA-TRU DOORS SERIES/MODEL: Classic-Craft, Fiber Classic, and Smooth Star TYPE: 3/8 Impact Rated Side Hinged Door ATI Data File No. 74385.01A*
More informationDesign of a standalone, modular test facility for measuring sound transmitted through a common ceiling plenum
Design of a standalone, modular test facility for measuring sound transmitted through a common ceiling plenum Edward A. BARCLAY 1 ; Robin R. WAREING 2 ; John R. PEARSE 3 1, 2, 3 University of Canterbury,
More informationSoundproofing of Wood-frame buildings
Soundproofing of Wood-frame buildings Learning objectives Basic Acoustic Principles and Definitions Impact and Airborne sounds in light wood-frame buildings Means of soundproofing light wood-frame buildings
More informationQuiet in the classroom Enhancing the learning environment through better acoustics
CEILING&WALL SY ST EM S B e t w e e n u s, i d e a s b e c o m e r e a l i t y Quiet in the classroom PA G E O N E On any given school day, thousands of students across the country are unable to understand
More informationFrom: Tyler Adams, Mei Wu Acoustics
Experts in acoustics, noise and vibration To: Jim Inglis, Stanford University John D. Donahoe, Stanford University Doug Sams, ZGF jinglis@stanford.edu jdonahoe@stanford.edu doug.sams@zgf.com From: Tyler
More informationAcoustical Engineering Solutions
Acoustical Engineering Solutions Noise & Vibration Control in Wood Framed, Residential Structures By Scott Harvey, PE, INCE Bd. Cert. Phoenix Noise & Vibration Frederick, Maryland Copyright Materials This
More informationPemko Acoustic Products CONTENTS:
Pemko Acoustic Products CONTENTS: The Impact of Sound...222 Basic Acoustics...222 Sound and STC Ratings...223 Acoustic Seal Sets...22 Acoustic Thresholds...225 Saddle Thresholds...226 Automatic Door Bottoms:
More informationCity of High Point Airport Overlay District Noise Level Reduction Design Standards
City of High Point Airport Overlay District Noise Level Reduction Design Standards Part A. Residential Design Standards for Zone 3 I. NOISE LEVEL REDUCTION (NLR) REQUIREMENT FOR ZONE 3. The City of High
More informationSoundBreak XP Gypsum Board
Gold Bond brand SoundBreak XP 09 29 00/NGC Market Trends Driving The Need For Higher Rated STC Wall Partitions Increasing land costs have resulted in larger amounts of high density multi-family housing
More informationEXCEL Medical Waste - Equipment Installation Section SECTION GYPSUM BOARD
SECTION 09 29 00 GYPSUM BOARD PART 1 - GENERAL 1.1 DESCRIPTION This section specifies installation and finishing of gypsum board. 1.2 RELATED WORK A. Installation of steel framing members for walls, partitions,
More informationSECTION GYPSUM BOARD
SECTION 092900 GYPSUM BOARD PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and General Provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,
More informationSoundBreak Gypsum Board
Gold Bond BRAND SoundBreak 09 29 00/NGC Market Trends Driving The Need For Higher Rated STC Wall Partitions Increasing land costs have resulted in larger amounts of high density multi-family housing in
More informationPROMATECT hour walls
PROMATECT 100 2 hour walls 08 9445 8300 info@progressivematerials.com.au progressivematerials.com.au Partitions General Information Introduction Partitions and external walls are used to separate buildings,
More informationPresented By: Jim O Neill. Acoustics
Presented By: Jim O Neill Acoustics Topics STC and IIC 101 Sound in floors Sound in walls Noise In Multifamily Measurements of Noise Two ASTM Standards STC Sound Transmission Classification Measurement
More informationAirbourne Sound Transmission Test
Airbourne Sound Transmission Test 1.0 INTRODUCTION AND TEST RESULTS SUMMARY This National Acoustic Laboratories were commissioned by Modular Wall Systems to measure the acoustical transmission loss of
More informationIntertek Testing Services
Acoustical 3933 U.S. Rt. Cortland, NY 13045 Phone: 607-753-6711 Fax: 607-756-9891 Order No. J99031102-003 December 10, 1999 REPORT NO. J99031102-003 SOUND TRANSMISSION LOSS TEST AND CLASSIFICATION OF A
More informationSignatures are required on this document for an official laboratory test report. Copies of this document without signatures are for reference only.
ASTM E 90: Laboratory Measurement of Airborne Sound Transmission of Building Partitions and Elements ASTM E 492: Laboratory Measurement of Impact Sound Transmission through Floor- Ceiling Assemblies Using
More informationLEED for Homes Approved ID Request:
LEED for Homes Approved ID Request: Introduction The following is an Innovative Design Request (IDR) that has been approved for broader use in for the LEED for Homes program. This credit should not be
More informationASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT. Rendered to: THERMA-TRU DOORS. SERIES/MODEL: Slimline. TYPE: 8/0 Sliding Patio Door
ASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT Rendered to: THERMA-TRU DOORS SERIES/MODEL: Slimline TYPE: 8/0 Sliding Patio Door Summary of Test Results ATI Data File No. Glazing (Nominal Dimensions) STC
More informationSOUND INVESTMENT How the Acoustical Properties of Building Products Are Measured and Why This Is Important
SOUND INVESTMENT How the Acoustical Properties of Building Products Are Measured and Why This Is Important Introduction Acoustics and noise control have become important issues since the late 1950s with
More informationA. Environmental Limitations: Comply with ASTM C 840 requirements or gypsum board manufacturer's written instructions, whichever are more stringent.
SECTION 092900 - GYPSUM BOARD PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,
More informationImportant Notice. QuietRock by PABCO Gypsum Cherry Street Newark, CA
Important Notice In August 1, 2013, PABCO Gypsum, a division of PABCO building products, LLC acquired the QuietRock business and operations from Serious Energy, Inc. Serious Energy, Inc. corporate structure
More informationKINETICS NOISE CONTROL TEST REPORT #AT001052
KINETICS NOISE CONTROL TEST REPORT #AT001052 KINETICS NOISE CONTROL PRODUCTS: o ISOMAX CLIPS ACOUSTICAL RATINGS: o STC 66 o IIC 44 TESTING AGENCY & REPORT NUMBER: o NATIONAL RESEARCH COUNCIL OF CANADA
More informationAcoustics/Noise Abatement
TRADE OF Industrial Insulation PHASE 2 Module 4 Insulation Materials, Science and Application UNIT: 14 Produced by In cooperation with subject matter expert: Michael Kelly SOLAS 2014 Table of Contents
More informationStandard Practice for Architectural Application and Installation of Operable Partitions 1
Designation: 93 Standard Practice for Architectural Application and Installation of Operable Partitions 1 This standard is issued under the fixed designation ; the number immediately following the designation
More informationCanadian Wood Council G063. Acoustic Considerations for Wood Frame Construction
Canadian Wood Council G063 Acoustic Considerations for Wood Frame Construction Russ Lewis, M.Eng., P.Eng. Senior Consultant / Principal Rowan Williams Davies & Irwin Inc. February 4, 2016 Credit(s) earned
More informationRSIC-1 THE REVOLUTION IN NOISE CONTROL
RSIC-1 THE REVOLUTION IN NOISE CONTROL CHECK OUR WEBSITE FOR THE NEWEST INFORMATION AND ADDITIONS TO OUR PRODUCT LINE VER 0604 OVER 150 DESIGNS WE DON T BUILD BUILDINGS - WE MAKE THEM QUIET RSIC-1 wall
More informationKINETICS NOISE CONTROL TEST REPORT #AT001073
KINETICS NOISE CONTROL TEST REPORT #AT001073 KINETICS NOISE CONTROL PRODUCTS: o ISOMAX CLIPS ACOUSTICAL RATINGS: o STC 63 TESTING AGENCY & REPORT NUMBER: o RIVERBANK ACOUSTICAL LABORATORIES o RAL TL06-048
More informationProject No: Pakenham Branch Library, Pakenham, Ontario Section DECEMBER, 2016 Page 1 of 6
DECEMBER, 2016 Page 1 of 6 1 GENERAL 1.01 RELATED SECTIONS.1 Section 01 33 00 - Submittal Procedures..2 Section 07 21 16 - Batt and Blanket Insulation..3 Section 07 92 10 - Sealants..4 Section 09 91 00
More informationAcoustics and Office Design. We are surrounded by sound at all times. Some sounds are pleasant and soothing; others annoying and distracting.
Acoustics and Office Design We are surrounded by sound at all times. Some sounds are pleasant and soothing; others annoying and distracting. Sound affects the way we feel and behave. In the working environment,
More informationAcoustical Fire Batts
Acoustical Fire Batts Interior Wall Sound Control and Fire Protection Fire resistant Higher density than conventional insulations Excellent sound absorption Sag resistant fit Acoustical Fire Batts FIRE
More informationASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT. Rendered to: THERMA-TRU DOORS. SERIES/MODEL: Slimline. TYPE: 8/0 Sliding Patio Door with Impact Glass
ASTM E 90 SOUND TRANSMISSION LOSS TEST REPORT Rendered to: THERMA-TRU DOORS SERIES/MODEL: Slimline TYPE: 8/0 Sliding Patio Door with Impact Glass ATI Data File No. 74391.01 74391.01A* Summary of Test Results
More informationSECTION GYPSUM BOARD
SECTION 092900 GYPSUM BOARD PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Interior gypsum wallboard. 2. Tile backing panels. B. Related Sections: 1. Section 012300 Alternates. 1.2 SUBMITTALS A.
More informationASTM E 90-09: Laboratory Measurement of Airborne Sound Transmission of Building Partitions and Elements
ASTM E 90-09: Laboratory Measurement of Airborne Sound Transmission of Building Partitions and Elements 1 of 7 TEST : Acoustical Surfaces, Inc. Report Date: May 25, 2011 Test Date: September 28, 2010 Test
More informationH R0 ACOUSTICAL PERFORMANCE TEST REPORT ASTM E90. Rendered to: CUSTOM VINYL PRODUCTS, LLC SERIES/MODEL: SHA4. TYPE: Single Hung Window
ACOUSTICAL PERFORMANCE TEST REPORT ASTM E90 Rendered to: CUSTOM VINYL PRODUCTS, LLC SERIES/MODEL: SHA4 TYPE: Single Hung Window Summary of Test Results Data File No. Glazing (Nominal Dimensions) STC OITC
More informationModuline. Acoustic Enclosure System. Rugged Noise Control Structures Using Acoustically Rated & Field Proven Demountable Components
Moduline Acoustic Enclosure System Rugged Noise Control Structures Using Acoustically Rated & Field Proven Demountable Components Lab certified acoustic ratings Broad range of performance levels 63 Hz
More informationINNOVATIONS FOR LIVING
INNOVATIONS FOR LIVING Contents Introduction 1 What is Sound 2 Basic Principles of Noise Control 4 Sound Absorption 9 Sound Transmission Loss 12 Ceiling Sound Transmission Loss 14 Impact Sound Transmission
More informationImportant Notice. QuietRock by PABCO Gypsum Cherry Street Newark, CA
Important Notice In August 1, 2013, PABCO Gypsum, a division of PABCO building products, LLC acquired the QuietRock business and operations from Serious Energy, Inc. Serious Energy, Inc. corporate structure
More informationH R0 ACOUSTICAL PERFORMANCE TEST REPORT ASTM E 90 AND ASTM E 492. Rendered to URBAN SURFACES. Series/Model: Urban Surfaces Soundtec
ACOUSTICAL PERFORMANCE TEST REPORT ASTM E 90 AND ASTM E 492 Rendered to URBAN SURFACES Series/Model: Urban Surfaces Soundtec Specimen Type: 152 mm Concrete Slab with Drop Ceiling Overall Size: 3048 mm
More informationASTM E 90-09: Laboratory Measurement of Airborne Sound Transmission of Building Partitions and Elements
ASTM E 90-09: Laboratory Measurement of Airborne Sound Transmission of Building Partitions and Elements 1 of 7 TEST : Acoustical Surfaces, Inc. Report Date: May 25, 2011 Test Date: September 28, 2010 Test
More informationKINETICS NOISE CONTROL TEST REPORT # AT001084
KINETICS NOISE CONTROL TEST REPORT # AT001084 KINETICS NOISE CONTROL PRODUCTS: o MODEL ISOGRID ACOUSTICAL RATINGS: o STC 63 o IIC 50 TESTING AGENCY & REPORT NUMBER: o NRC-CNRC o B-3463.6 KINETICS DRAWING
More informationAcoustic Management of Library Fishbowls
Acoustic Management of Library Fishbowls A Senior Project presented to the faculty of the Materials Engineering Department California Polytechnic State University, San Luis Obispo In Partial Fulfillment
More informationImportant Notice. QuietRock by PABCO Gypsum Cherry Street Newark, CA
Important Notice In August 1, 2013, PABCO Gypsum, a division of PABCO building products, LLC acquired the QuietRock business and operations from Serious Energy, Inc. Serious Energy, Inc. corporate structure
More informationLABORATORY MEASUREMENT OF AIRBORNE SOUND INSULATION OF PIR ROOF PANELS (According to ISO )
Ref no: LABORATORY MEASUREMENT OF AIRBORNE SOUND INSULATION OF PIR ROOF PANELS (According to ISO 10140 2) AUCKLAND UNISERVICES LIMITED a wholly owned company of THE UNIVERSITY OF AUCKLAND Report prepared
More information