Guidelines for Airport Sound Insulation Programs (2013) / Chapter Skim
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Pages 74-105
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From page 74... ...
74 All airport SIPs share a common goal of providing homeowners, students, and worshippers quiet environments in which to carry out activities without disruption from aircraft noise. Geographic diversity, wide-ranging climatic conditions, local construction practices, and building codes dictate acoustical and architectural applications that are appropriate to particular communities.
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From page 75... ...
Design of Architectural Treatment Strategies 75 that are long lasting, and that perform well; designing treatments that maintain the aesthetic characteristics of the neighborhood as much as possible; and detailing treatment installations to reduce disruption to occupants during construction. Defining these aspects for each program can be informed by programs and practices at airports across the country, but the final determination of what is appropriate is a local decision.
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From page 76... ...
76 Guidelines for Airport Sound Insulation Programs sometimes municipality, may adopt variations in its requirements for construction. Additionally, each jurisdiction may have adopted different editions or appendices of the IBC, which is updated every 3 years.
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From page 77... ...
Design of Architectural Treatment Strategies 77 5.2 Residential Sound Insulation Treatments The majority of houses in the United States are built using defined standards and materials. Standard residential construction is made up of dimensional wood lumber or masonry units.
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78 Guidelines for Airport Sound Insulation Programs • Establish if any houses might need a review for historic significance. • Document visible code or safety concerns, such as bedroom windows that are too small or high off the ground to meet current building code standards for emergency egress and fire access.
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Design of Architectural Treatment Strategies 79 B Ranch The ranch (see Figure 5.2)
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80 Guidelines for Airport Sound Insulation Programs Figure 5.3. Raised or split ranch houses.
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Design of Architectural Treatment Strategies 81 uppermost unit is often under a flat roof with exposure to overflight noise. If the structure has been made into condominiums, issues may arise about exterior consistency of design for treatments, depending on each owner.
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82 Guidelines for Airport Sound Insulation Programs H Additions While not a style, additions to houses (see Figure 5.8)
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Design of Architectural Treatment Strategies 83 and ductwork works well. The second treatment method involves providing physical barriers to noise, usually in the sequence of (1)
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84 Guidelines for Airport Sound Insulation Programs ADO. A design/policy manual for a program that specifies when wall and ceiling treatments are needed may be sufficient advance notice if the design manual is approved by the ADO.
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Design of Architectural Treatment Strategies 85 Without insulation, the wall performs at 37 STC, and with insulation it can achieve up to 40 STC. If either the interior or exterior wall does not have the minimum ½-in.
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From page 86... ...
86 Guidelines for Airport Sound Insulation Programs Attic Hatch. If the existing hatch is tight fitting and consists of minimum ¾-in.
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From page 87... ...
Design of Architectural Treatment Strategies 87 required in many code jurisdictions will require careful review to confirm if they will meet code requirements for U-values, condensation resistance, and thermal performance. A detailed examination of acoustical windows is in Chapter 9.
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88 Guidelines for Airport Sound Insulation Programs STC rating to be used without a secondary door. Homeowners are more receptive to this standalone product in regions where storm doors are not commonly used.
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From page 89... ...
Design of Architectural Treatment Strategies 89 Flush Wood Doors. Flush wood doors for exterior use often require that the doors be protected from the weather with overhangs or secondary doors.
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90 Guidelines for Airport Sound Insulation Programs and architectural graphic standards. ASTM E2112, Standard Practice for Installation of Exterior Windows, Doors, and Skylights, has been developed by industry consensus to address the quality of fenestration installation and includes recommendations about proper flashing.
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From page 91... ...
Design of Architectural Treatment Strategies 91 construction and life-safety egress requirements, such as when the window will be too small to allow for fire egress or the window exceeds the minimum or maximum dimensions of product availability. For doors, the rough opening/unit or full-frame replacement has become the preferred method in most cases due to the reliability of the install compared to trying to adjust a new door to a frame that may be out of square or skewed.
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From page 92... ...
92 Guidelines for Airport Sound Insulation Programs It is important to note that design pressure requirements are separate from impact resistance requirements (another important performance requirement) and that the strength of window and door product frames and anchoring must respond to the designated wind load conditions.
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Design of Architectural Treatment Strategies 93 the acoustical door or window product, which are constructed with deeper frames than most non-acoustical residential products. Many frames are between 4.5 in.
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From page 94... ...
94 Guidelines for Airport Sound Insulation Programs this risk, EPA requires contractors performing renovation, repair, and painting projects that disturb leadbased paint in homes, child care facilities, and schools built before 1978 must be certified and must follow specific work practices to prevent lead contamination.10 It is important that contractors working on SIPs are compliant with the EPA's Lead Renovation, Repair, and Painting Program. 5.2.7 Building Codes for Residential Buildings The first step in evaluating building codes for sound insulation is to determine which versions of codes are in effect for each jurisdiction affected by the program.
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From page 95... ...
Design of Architectural Treatment Strategies 95 The 1992 and 2005 versions of the guidelines attempted to address this issue by providing guidance for the treatment of habitable rooms and living spaces. Unfortunately, code definitions of living space and habitable space are not the same.
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From page 96... ...
96 Guidelines for Airport Sound Insulation Programs subdivided will often require more careful assessment of physical conditions, which is the basis of code determinations of habitability. Table 5.2 is based on the 2009 IRC and provides a list of physical conditions relevant to SIPs that should be evaluated in each home to determine whether spaces that are acoustically eligible for treatment also meet code habitability requirements.
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From page 97... ...
Design of Architectural Treatment Strategies 97 D Code Requirements That Affect Treatment Recommendations The consultant team will need to conduct a code review as an essential part of program start-up.
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98 Guidelines for Airport Sound Insulation Programs 4. If new HVAC systems are being installed, does the electric panel meet the requirements for the work to proceed?
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Design of Architectural Treatment Strategies 99 However, use of this secondary protocol is significantly restricted: In order for grant funding to be available for the secondary package, participation must be limited by FAA policy to less than 10 percent of the residences in the neighborhood (as logically bounded by either streets or other geographic delineation) , but by FAA policy in no case more than 20 residences total in a phase of the noise insulation program.
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From page 100... ...
100 Guidelines for Airport Sound Insulation Programs Styles of homes may determine materials that are appropriate and incorporate window patterns with customized shapes. If the program is in a high wind region, the window will be subjected to damaging pressure, thereby requiring a stronger frame and hardware or thicker glass.
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From page 101... ...
Design of Architectural Treatment Strategies 101 5.2.9 ACRP Project 02-31, "Assessment of Sound Insulation Treatments" At the time of the publication of these guidelines, the Airport Cooperative Research Program began ACRP Project 02-31, "Assessment of Sound Insulation Treatments," to conduct research and provide evaluation of the performance of acoustical products and treatments in previous SIPs, including the proper maintenance required to ensure the longevity of the installed acoustical treatments. It is recommended that users of these guidelines review the results and recommendations of ACRP Project 02-31 for further information regarding sustainable and effective noise reduction products and treatment strategies.
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From page 102... ...
102 Guidelines for Airport Sound Insulation Programs General practice is that requirements for schools set the standard for treatment of other nonresidential properties. Aircraft over-flights can cause disruptions to the ability to understand speech in such structures.
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Design of Architectural Treatment Strategies 103 and the desire to avoid setting an unattainable precedent for schools in their district outside of the noise contour.
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From page 104... ...
104 Guidelines for Airport Sound Insulation Programs When treatment recommendations do not include treating every exterior opening of a building, consideration should be given to façade consistency and reasonable design judgments for architectural continuity. Some programs have allowed schools to contribute to the construction costs of coordinating treatments for non-eligible spaces.
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From page 105... ...
Design of Architectural Treatment Strategies 105 GWB construction on wood studs/joists with a standard exterior sheathing, those walls and ceilings need only be treated if the level of exterior noise exposure is too high to achieve the desired interior noise levels. The possible treatments for these structures include: • New windows, • New doors, • New accessible entry platforms, • New HVAC systems, • New GWB wall layer, • New acoustical ceiling-tile ceilings, and • Structural reinforcement to meet seismic loads.
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