March 23, 2018

Waterproofing and Integration of Exposed Air Handling Unit (AHU) Cladding with the Building Envelope

By: Daniel Gibbons, David Markman

Large rooftop mechanical equipment, such as air handling units (AHU), can be an important component of a building’s exterior envelope. However, it is critical that the skin of this equipment be designed or constructed with principles...

March 23, 2018

Narrow Roof Design Challenges

By: Jay Sekel, Jeffrey Kerr

Narrow roofs and other façade articulations are often designed and detailed with waterproofing characteristics similar to adjacent vertical wall surfaces, leaving the narrow roof assembly with insufficient waterproofing performance and risk of...

March 2, 2018

Facade Inspection and Maintenance

A well-designed, constructed, and maintained building facade protects the building interior from water leakage, air infiltration, and energy loss. However, environmental exposure and time can degrade facade components. Facade deterioration can lead to a range of issues from compromised performance to potential falling hazards.
February 9, 2018

Admixture Compatibility in Metakaolin–Portland-Limestone Cement Blends

By: Behnaz Zaribaf, Kimberly E. Kurtis

Despite potential benefits including enhanced mechanical properties, reduced permeability, and decreased environmental impact, higher rates of metakaolin substitution for cement ([10% MK by mass of cement) have been limited practically because of...

January 9, 2018

Developments in Structural Fire Protection Design – a US Perspective

The next edition of the ASCE/SEI 7 standard commences a new and groundbreaking industry-consensus standard of care for structural fire protection in the USA, and other adopting jurisdictions. The default option is termed standard fire resistance...

January 8, 2018

Architect's Guide to Structures: Special Structural Topics

To help architects manage growing complexities and partner with project teams, a recent series of practical guidebooks look to outline structural engineering principles in a practical and comprehensive way. Issued by academic publisher Routledge...

January 3, 2018

Shear Resistance of Pavement and Waterproofing Systems

By: Philip Moser, Tony Khoury, Jonathan Haydu
Phil Moser and Tony Khoury recently published an article in Civil + Structural Engineer magazine that discusses new testing and research of the interlayer shear strength of asphalt concrete pavement (ACP) and waterproofing membrane systems.
December 21, 2017

Using Thermal Modeling of Fenestration in the Design Process

Designers typically have two concerns about thermal performance when it comes to fenestration: energy performance and condensation potential. Thermal modeling standards provide ways to assess the performance of different assemblies and products...

December 5, 2017

What Warranties Do (and Don’t) Cover for Below-Grade Waterproofing Systems

By: Matthew Normandeau, Paul Sujka, Alexander Kosis

Matthew Normandeau, Paul Sujka, and Alex Kosis published an article in Building Enclosure magazine article that explores below-grade waterproofing warranties. In “Below-Grade Waterproofing Warranties: The Common Misperception,” the...

December 5, 2017

Building Facades: San Francisco Inspection Requirements

Damaged and deteriorated building facades are a serious public safety concern. The damage also affects the appearance and structure of...