Guidelines for Airport Sound Insulation Programs (2013) / Chapter Skim
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Pages 161-186
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From page 161... ...
161 Product Development When sound insulation programs began in the 1980s, there were few stand-alone window or door products available to the residential renovation market that were designed to reduce noise infiltration. Working with manufacturers and acoustical consultants, individual products were combined to meet sound attenuation goals.
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From page 162... ...
162 Guidelines for Airport Sound Insulation Programs of acoustical window and door products have varying degrees of stiffness. The stiffness of a material or assembly of materials creates a sometimes pronounced dip in particular frequency ranges in the transmission loss graph.
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From page 163... ...
Product Development 163 rating a combination of extruded aluminum profiles and extruded vinyl profiles assembled into a finished system, and wood and clad wood fenestration products designed with a secondary window or storm window applied. Acoustical entrance door systems are manufactured with steel, fiberglass, solid core wood, and wood-veneered skins over a variety of core materials to produce a wide range of STC performance values.
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From page 164... ...
164 Guidelines for Airport Sound Insulation Programs climates of SIPs. Many manufacturers of acoustical products offer exterior and interior trim profiles, accessory components that provide a similar profile appearance to original windows, and solutions to installation issues encountered in the field.
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Product Development 165 STC results of STC 40 and above. Before approving any acoustical window or door product for an SIP, it is important to conduct a thorough product review for performance and compliance with program requirements, including analysis of fabrication information, assembly materials, glazing configuration, and independent test reports from a certified lab.
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From page 166... ...
166 Guidelines for Airport Sound Insulation Programs climates, the laminated glass should be placed to the interior or warm side of the fenestration product for optimal performance. Test criteria from ASTM E90, Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements,1 give 68°F to 75.2°F as the allowable temperature range to conduct sound transmission class testing.
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From page 167... ...
Product Development 167 • 40 lbs/ft2 (1,920 Pa) for the AW class (commonly used in high-rise and mid-rise buildings to meet increased loading requirements and limits on deflection, and in buildings where frequent and extreme use of the fenestration products is expected)
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From page 168... ...
168 Guidelines for Airport Sound Insulation Programs instances where a product performs better at lower frequencies, reflecting a better OITC value, but has a lower STC performance rating. When reviewing sound performance data, it is important to review the TL values to establish at what frequencies the product is providing its best sound attenuating performance.
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From page 169... ...
Product Development 169 9.3 Product Durability Product durability refers to the quality and life expectancy of fenestration products used in SIPs. Specifying long-lasting and consistently functioning products is an important part of the product procurement process.
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From page 170... ...
170 Guidelines for Airport Sound Insulation Programs unit. Also the units must be square to ensure that the designed seals and gaskets perform.
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Product Development 171 with a flexible vinyl glazing boot. The glazing boot cushions the glass, which helps to dampen sound transmission around the glazing pocket.
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From page 172... ...
172 Guidelines for Airport Sound Insulation Programs glass as required. Both primary and secondary sashes are removable to the interior, with some manufacturers offering double-hung windows with counterbalanced tilt-in sash features for ease of cleaning.
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From page 173... ...
Product Development 173 weatherability. Caution should be used when mounting secondary units to the face of the wood window exterior trim, ensuring the secondary window is properly flashed to eliminate the possibility of a leak between the two units.
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174 Guidelines for Airport Sound Insulation Programs E Acoustical Casement and Projected Units Acoustically rated casement and projected window products are available in aluminum, vinyl, and composite window systems (see Figure 9.8)
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Product Development 175 ignations include R, LC, C, HC, and AW ratings for products. Overall frame depths vary from 25⁄8 in.
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From page 176... ...
176 Guidelines for Airport Sound Insulation Programs 9.4.3 Replacement Swinging Doors As referenced in previous guidelines, "doors compete with windows for the role of the weakest link in the dwelling's sound insulation performance. Almost all typical residential doors require modification or replacement to provide the necessary protection from aircraft noise."6 Acoustically treating door openings can be achieved by treating the existing door, by installing an acoustically rated stand-alone door system, or by combining a high-quality residential entrance door system and an acoustically rated secondary door in tandem.
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From page 177... ...
Product Development 177 associated with the acoustical door panels. Installation of these doors must include the inspection of the rough opening to ensure that the framing members are in solid condition.
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From page 178... ...
178 Guidelines for Airport Sound Insulation Programs Several door manufacturers offer optional core materials in lieu of the polyurethane core to enhance performance. Solid wood block or engineered particleboard cores increase the weight of the door to approximately 7.0 lbs/ft2 to 7.5 lbs/ft2 and provide STC results of STC 27 to STC 29.
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From page 179... ...
Product Development 179 assembles these component parts into a finished or pre-hung door system. STC tests provided by an independent certified lab should include the entire door assembly, pre-hung in the frame and completely operational.
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From page 180... ...
180 Guidelines for Airport Sound Insulation Programs the fabrication and assembly techniques of the window or door products produced match the product information certified and registered with the state of Florida. The installation of approved products in Florida SIPs requires a building official's inspection of the product, installation technique, and fasteners prior to the application of any type of finish trim materials.
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From page 181... ...
Product Development 181 C HVHZ Door Products Impact- and acoustically rated sliding glass patio door systems are also available for use in HVHZs.
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182 Guidelines for Airport Sound Insulation Programs Courtesy of SCS/Larson. Figure 9.12.
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From page 183... ...
Product Development 183 the secondary door application. The sliding secondary door operates in the same manner as the prime sliding door and creates a multiple-panel, dual-door system.
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184 Guidelines for Airport Sound Insulation Programs Courtesy of SCS/Larson. Figure 9.14.
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From page 185... ...
Product Development 185 of what are and qualify as American-made goods, along with the proper reporting of their procurement and use. The statute also outlines requirements and guidelines when requesting waivers for using materials not made in America.
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From page 186... ...
186 Guidelines for Airport Sound Insulation Programs 5. Review the thermal performance requirements on a routine basis to ensure compliance with intermittent code changes.
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