The U.S. Environmental Protection Agency (EPA) estimates stormwater runoff is responsible for 70 percent of all water pollution in lakes, rivers, and creeks. When developers use conventional methods such as impervious surfaces, stormwater is often left uncontrolled.
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Energy efficiency is becoming an ever-increasing goal, but it can be difficult with fenestration due to a need to balance performance requirements while remaining economically viable and minimally impacting the environment.
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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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