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| Featured |
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| Creating a sound strategy: Approaches to managing unwanted noise |
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Acoustic challenges have become common place as millions are working from home during the pandemic. Planning for the quality of the sound at the design stage can result in a building that delivers occupant comfort and drives positive outcomes, including patient satisfaction, speech privacy, and employee productivity. |
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| Late-emerging defects with insulating glazing units |
| Failures |
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| To meet performance demands for energy conservation, noise resistance, heat gain, and indoor comfort, designers often specify insulating glazing units (IGUs). Typically, two or more glass panes are assembled with an air space, perimeter spacer desiccant, a primary seal to prevent vapor transmission, and a secondary seal to provide structural integrity. With so many components, IGUs are susceptible to defects, and some of them are not apparent until well after the windows are in service.
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| Project News |
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| Minnesota’s historic Rand Tower renovation utilizes EPDM roofing |
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| Aviator Rufus R. Rand would love the recently renovated Rand Tower in downtown Minneapolis, Minnesota. He originally built the 26-story structure in 1929. Now, almost a century later, the historic building serves as a luxury hotel. Ethylene propylene diene monomer (EPDM) roofing was used to tackle the complex renovations to the building. |
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| Inside CSI |
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| IMPACT INSULATION CLASS FOR STRUCTURE-BORNE SOUND |
| Does anybody know how/where impact insulation class should be specified for hospital floor/ceiling assemblies as it relates to 2018 IBC 1207.3 Structure-borne sound: Floor/ceiling assemblies between dwelling units and sleeping units or between a dwelling unit or sleeping unit and a public or service area within the structure shall have an impact insulation class rating of not less than 50, or not less than 45 if field-tested when tested in accordance with ASTM E 492? Does anyone know where one can find ICC test results for various floor/ceiling assemblies for commercial/ hospital projects? I can only locate residential-type construction (i.e. the GA-600 manual. Thank you!
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| JOIN THE DISCUSSION » |
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| SHOP DRAWINGS AND SUBMITTALS—TYPES OF SUBMITTALS |
| This is the second in a six-part series of blog posts on shop drawings and submittals. The first post addressed definitions, purpose, and necessity of submittals. Forthcoming posts in the series will address liability associated with design professionals’ review of submittals, submittal review stamps, submittals with deviations from contract requirements; and delegated design submittals.
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