WJE Announces Promotions of Senior Staff

January 10, 2013
Wiss, Janney, Elstner Associates, Inc. (WJE), is pleased to announce the following promotions to Senior Associate:

Nathan Gamber
Mr. Gamber joined WJE in 2005 and has since performed design peer reviews, investigations, and repair design for a variety of building types to address moisture-related deterioration of above- and below-grade building enclosure materials, components, and systems. He has been involved in the construction observation of numerous high-rise multifamily residential buildings and medical centers, including preconstruction mock-up performance testing, design refinement, and field quality assurance services. Other projects include Silver Spring Gateway in Silver Spring, Maryland, UPMC East in Monroeville, Pennsylvania, and The Cleveland Museum of Art in Cleveland, Ohio. He is also a founding member and co-chair of the Cleveland chapter of Building Enclosure Council (BEC-CLE). Mr. Gamber holds a bachelor of science and master of science in civil engineering from Ohio University.

Michael Kotheimer
Since joining WJE in 2004, Mr. Kotheimer has gained extensive experience in construction observation, condition surveys, field testing, and investigations of new and existing structures. Specifically, Mr. Kotheimer has considerable knowledge of a wide range of building envelope components and systems as well as the proper integration of these systems to ensure air/moisture barrier continuity and performance. Additionally, he is a founding member of the Cleveland Building Enclosure Council, a standing committee of AIA Cleveland. Prominent projects include Constitution Center in Washington, D.C., Blair House in Silver Spring, Maryland, and the Buffalo Federal Courthouse in Buffalo, New York. Mr. Kotheimer holds a bachelor of science and master of science in civil engineering from Ohio University.

Nathaniel Rende
Since joining WJE in 2005, Mr. Rende has been a project associate for a broad range of assignments, including condition assessments, structural testing and instrumentation, quality assurance inspections, and the development of repair plans and specifications. He specializes in applying nondestructive evaluation (NDE) techniques, specifically impact-echo, ground-penetrating radar, impulse-response, and ultrasonic pulse velocity, to evaluate concrete and masonry structures and has developed and applied NDE to many unique situations. Recently, Mr. Rende participated in the project team inspecting earthquake damage to the Washington Monument. Mr. Rende holds a bachelor of science in civil engineer and a master of science in structural engineering from the University of Illinois at Urbana-Champaign.

Darin Rickert
Since joining WJE in 2007, Darin Rickert has performed building envelope assessments, leakage investigations, building envelope commissioning services, design peer reviews, and construction observation on a variety of new and existing structures. He has developed a number of repair and rehabilitation designs and has overseen construction administration for numerous commercial, residential, and industrial building assignments, including the Wisconsin Institutes for Discovery in Madison, Wisconsin, and the Whitney Museum of American Art in New York, New York. Mr. Rickert holds a bachelor of science in architectural studies from the University of Wisconsin-Milwaukee.

Aaron Sterns
Mr. Sterns joined WJE in 2006 and has since been involved with numerous projects related to the structural evaluation of existing structures. His projects have included buildings, bridges, piers, and cranes; and a variety of construction materials, including concrete, steel, wood, and masonry. Notable projects include Hylebos Bridge in Tacoma, Washington, Tribune Tower in Chicago, Illinois, and the Tower 333 Crane collapse in Bellevue, Washington. Mr. Sterns recently passed the Texas Structural Engineering Exam. He holds a bachelor of science in civil engineering from the University of Texas at Austin and a master of science in civil (structural) engineering from the University of Washington, Seattle.

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