The first article in this two-part series lays the groundwork for this discussion on R-values and their use as a metric for thermal insulation performance. Now, in this second part, the author examines the real-world use of it as a gauge for ensuring insulation products function as intended.
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What exactly is R-value? This question is not asked often enough in today’s environmentally conscious design/construction industry. However, an even better question may be, whether R-value is still a valid unit of measurement for the performance of insulation products.
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Multi-family balconies are often framed with cantilevered wood, with a concrete covering and gypsum or vinyl ceiling. Structural drawings for a project typically contain a note describing the quality of lumber materials assumed and used by the structural engineer in the structural design process.
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Most deck-related accidents are caused by failure of the deck-ledger connection or the guardrail—this can lead to serious injuries or death. Decks are often designed as a collection of individual parts, rather than as a ‘system’ of interrelated components that must function correctly.
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Fire doors are an important part of a building’s passive fire protection system, and doors in a means of egress provide life safety by allowing people to exit quickly when necessary. Still, the requirements remain a mystery for many architects and specifiers.
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Education about high-speed, high-performance security doors, and how they can be offered to owners as a cost-effective alternative to traditional rolling steel doors, will allow the design/construction professional to provide owners with other smart options that are up to speed with the latest door technology.
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Design professionals are increasingly choosing geosynthetics like expanded polystyrene (EPS) geofoam as a lightweight fill material in infrastructure and building applications. The material is about 100 times lighter than traditional fills, yet is strong enough to support pavements carrying jumbo jets.
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Used for pipes and process equipment, the potential of mechanical insulation to play a significant role in reducing energy intensity is immense, but it is often specified incorrectly or, more frequently, not adequately maintained.
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