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Overview of noise in buildings
Noise in
Buildings
Session 3
Second CAETS Forum
Desired Outcome
To assess the state of the technology so that
CAETS will be in a position to recommend
actions to policymakers worldwide through
their 26 member academies on how current
and future noise control technology can
Noise in Buildings:
SOURCES
Common types of noise source:
Noise from neighbors
Noise from building services
(HVAC, plumbing, elevators, etc.)
Noise from occupant appliances
Noise from outdoor sources
(usually transportation, air-borne or ground-borne)
Quieting the source feasible for some
Path control common for others
Noise in Buildings:
TECHNI CAL STANDARDS
Limited international harmonization:
Most ASTM standards have I SO equivalents
Some unique ASTM standards
(open plan offices, speech security, etc.)
Many new I SO standards (gaps in ASTM set)
(flanking transmission, new techniques)
ASTM E33
I SO
Noise in Buildings:
REGULATI ONS
“The building code defines the worst building
that can be supplied without facing lawsuits or
criminal charges.”
Building rational international consensus within
technical community is a major challenge
The “harmonization” of European criteria in
I SO 717 enabled a proliferation of unique
national criteria, which are only marginally
different in function
What Satisfies Typical Occupants?
Classes for Enhanced Sound Insulation
45 50 55 60 65
Basic Better Best
Approximate
ASTC Netherlands, NEN1070
Denmark, DS490 Finland, SFS5907 Sweden, SS25267 Germany, VDI 4100 Korea France, CQCA Don’t notice neighbours Significant annoyance
Survey of 300 pairs of neighbors, side-by-side
Session 3 Questions
NOI SE I N BUI LDI NGS
1. What advances have been made in the technical understanding of sound transmission in buildings in recent decades? What technical challenges impede prediction of the sound reaching building
occupants from specific sources?
2. What elements are needed to implement the science of sound
transmission in the systematic design and evaluation of buildings to meet occupant requirements?
3. What is needed for an effective regulatory system for the acoustical performance of buildings? Are there gaps in available measurement standards or the subjective criteria on which to base regulations? 4. How are building codes enforced (in Europe, in North America,
elsewhere)? What barriers impede a common international
approach? (harmonized technical standards, common performance criteria, historic concerns, etc.)
Session 3 Questions
NOI SE I N BUI LDI NGS
5. What advances have been made to minimize the noise of equipment in commercial buildings and homes? How do differences between heavy and lightweight construction (concrete and masonry versus lightweight framed systems) affect such transmission? Are separate approaches needed for building services (plumbing, HVAC, etc.) and
for occupants’ appliances such as dishwashers?
6. How can the noise generated by machinery and equipment within a building be controlled by a building code or other regulations? Are enhanced technical standards needed?
(source emission versus noise at receiver, gaps in knowledge and/ or tools)
Session 3 Questions
NOI SE I N BUI LDI NGS
7. What special issues create the need for extensions beyond the
conventional approach to sound insulation based on average sound power reaching a space. (speech security, low-frequency issues, etc.)
8. As low-frequency noise and vibration from arterial traffic must be minimized in adjacent commercial buildings and homes, what special noise and vibration control treatments have been found to be most effective?
9. What are the advantages and disadvantages of a “green” building design framework in providing a satisfactory acoustical environment for the occupants?
10. What new advances for noise control in buildings are anticipated during the next decade?
Session 3:
1:40 Opening J. David Quirt, NRC, Canada Overview of building noise
2:00 Panelist 1
Brad Gover/Berndt Zeitler, NRC, Canada
Noise transmission in commercial and residential buildings
2:20 Panelist 2
Laymon Miller, Consultant, Florida, U.S.A.
System approach to the control of noise and vibration in buildings due to service equipment (Part 1)
2:40 Panelist 3
Laymon Miller, Consultant, Florida, U.S.A.
System approach to the control of noise and vibration in buildings due to service equipment (Part 2)
3:00 Panelist 4
Ralph Muehleisen, Illinois Inst. of Technology, U.S.A.
Noise problems and opportunities in "green" buildings
3:20 BREAK
3:40 Panelist 5
Birgit Rasmussen, Danish Bldg Res Inst., Denmark (presenter Bill Cavanaugh)
Noise limits and building codes in Europe
4:00 Panelist 6
Brandon Tinianov, Serious Materials, U.S.A.
Sustainable materials and new developments for building noise control
4:20 Discussion
Forum Procedures
If you wish to receive a forum source book,
please leave your business card.
If you have a question for a presenter or the
panel, please write it on an index card so we
may address it during the discussion period.
