Roof drainage failures: consider the details

December 15, 2022

When developing roof drainage details, designers need to consider not just typical conditions and geometries, but also atypical or transitional geometries that may concentrate or direct water flow in unexpected ways.

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Keeping it dry … during construction

November 17, 2022

A primary design goal for any building enclosure should be to minimize the infiltration of bulk water into the intended dry zone of the various enclosure assemblies for the duration of their anticipated service life. Significant and/or recurring water infiltration can adversely affect moisture-sensitive materials and the overall performance...

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Repairing wood roof trusses

October 27, 2022

Since many of these historic structures were designed using empirical methods and not engineering mechanics, many times there are both deficiencies in the truss configuration and the masonry buttresses to resist the outward movement.

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Missed opportunities in specifying aluminum-framed fenestration for LEED v4.1 projects

September 16, 2022

Without clear specification at bidding time, those pursuing LEED v4.1 certification may be missing an opportunity to ensure the Division 8 fenestration systems are manufactured with recycled content and supported with required documentation.

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Fenestration systems: Know your options

August 1, 2022

For most commercially available fenestration systems, test reports outlining the performance attributes of the system—verified through laboratory testing—are available from the manufacturer.

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Stain-less is not stain-zero

July 5, 2022

Stainless steel is commonly used to provide architectural metal fabrications that are corrosion resistant without the need for paint or other coatings.

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Test, repair, test again (repeat as necessary)

June 9, 2022

During verification testing, while water leakage was eliminated at the head of the system, water leakage (originally masked by the extent of water leakage during initial testing) occurred at the sill of the system.

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Detailing rubberized asphalt flashings

April 22, 2022

In two recent case studies, staining on exterior masonry was found to be related to flashings installed in the 1990s.

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Mitigating active shooter attacks

March 30, 2022

School districts are expected to provide more than a place where children learn. Today’s schools also must prioritize wellness and safety.

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Why things fall apart: Lessons learned

March 6, 2022

The Construction Specifier provides an exercise in understanding how and why construction materials and systems fail.

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