Construction Specialties Introduces First AMCA 550-rated Horizontal Louver


In the commercial building construction industry, new product development often means anticipating a need before the architect even recognizes there is one. Such is the case with Construction Specialties’ recently introduced Dade County (DC) model, DC-9614 horizontal louver—a cutting-edge AMCA 550-rated horizontal louver for use in hurricane-prone areas.

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To Test or Not to Test…? A guide to field quality control

Photo © BigStockPhoto/Vichaya Kiatying-Angsulee

When properly applied, tests can yield valuable insight into the installed performance of systems, aid investigators in determining the cause of a failure, or help to determine if a product is performing to its intended level. However, when improperly applied, many tests and standards can produce misleading results, improper conclusions, and lead to unnecessary repairs or remediation efforts. Within this context, the article takes an in-depth look at roofing assemblies, along with glazing, masonry, and air barrier assemblies.

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A Paradigm Shift in Specifying Temporary Structures

All images courtesy Mahaffey Fabric Structures

This article for construction specifiers assesses why and when to consider temporary buildings as an alternative to permanent construction, renovation, or leased existing space. Decision-making criteria, including category options, financial and site considerations, as well as technical information on energy-efficiency, usable space, roof loads, and wind ratings are examined.

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Commissioning a LEED Platinum Science Building

Photo courtesy Bohlin, Cywinski, Jackson

Discussing specification writing and documentation details can be challenging, but the right set of specifications is a key component in the process to deliver a successful project. It is crucial the specification writer understands the intent of how systems will operate and how systems relate to each other. This is getting even more important as new buildings are getting more complex and have loftier energy efficiency goals. This article describes the most important aspects of construction specifications to ensure a good outcome for energy efficient buildings.

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Testing Glazing in the Field: Performance Classes

Up until the 2008 edition of American Architectural Manufacturers Association/Window and Door Manufacturers Association/Canadian Standards Association (AAMA/WDMA/CSA) 101/I.S.2/A440, North American Fenestration Standard/Specification for Windows, Doors, and Skylights (NAFS), there were five performances classes of windows with differing requirements for test pressures, allowed leakage rates, and other variables. This sidebar discusses the current four types, and their minimum performance grades.

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