B2050−Exterior Doors and Grilles

Category Archives: B2050−Exterior Doors and Grilles

The Ins and Outs of Revolving Doors

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The built environment is an energy-guzzler. The U.S. Green Building Council (USGBC) states in this country alone, buildings account for 41 percent of energy use, 73 percent of electricity consumption and 38 percent of all CO2 emissions, and 13.6 percent potable water consumption. Globally, buildings use 40 percent of raw materials, or about 3 billion tons annually.1 Fortunately, the type of doors we select can have a big impact on a building’s energy profile.

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Creative building design requires high-performance membrane solution

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Project profile: Denver Botanic Gardens Science Pyramid DELTA®-VENT SA & DELTA®-FASSADE S—Design with open joints. The Science Pyramid at Denver Botanic Gardens invites visitors to explore the relationship between people and plants, and to examine how biomimicry—the way the features of nature inspire ideas and actions in people—plays a role in our lives.

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Success in the Balance: Form and function with balanced doors

Photo © Heather Collins Roe Photography

When choosing a marquee entry door system, specifiers need to consider several criteria including traffic, the building’s wind and stack action pressure, accessibility, and obstructing pedestrian traffic. Balanced doors can address these criteria with fluid opening and closing, even when strong external wind pressures and internal stack pressures. Design, frame, and tempered glass options are also discussed.

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Understanding New Accessibility Requirements for Doors

All images courtesy Allegion

The 2010 Americans with Disabilities Act (ADA) Standards for Accessible Design has several requirements that continue to surprise architects and specifiers. This article examines changes to door hardware operable force, use of low-energy automatic operators, protrusions into egress, and the need for proper maneuvering clearance.

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Impactable Dock Doors: Florida Building Code (FBC) 1715.5.3, “Exterior Door Assemblies”

Exterior door assemblies not covered by Florida Building Code (FBC) 1715.5.2, “Exterior Windows, Siding, and Patio Glass,” or FBC 1715.5.3.1, “Exterior Door Assemblies,” shall be tested for structural integrity in accordance with Procedure A of ASTM E330, Standard Test Method for Structural Performance of Exterior Windows, Doors, Skylight,s and Curtain Walls by Uniform Static Air Pressure Difference, at a load of 1.5 times the required design pressure load. The load shall be sustained for 10 seconds with no permanent deformation of any main frame or panel member in excess of 0.4 percent of its span after the load is removed. The design pressures, as determined from American Society of Civil Engineers (ASCE) 7, Minimum Design Loads for Buildings and Other Structures, are permitted to be multiplied by 0.6. High-velocity hurricane zones (HVHZ) must comply with Testing Application Standard (TAS) 202. After each specified loading, there must be no glass breakage, permanent damage to fasteners, hardware parts, or any other damage that causes the door to be inoperable.

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