Limited Seating - Sign-Up Today!

5 Locations - AIA Credits Available


Allana Buick & Bers is a multi-discipline architectural engineering firm specializing in making buildings perform better. We are experts in exterior façade, roofing, waterproofing, building forensics, structural engineering, mechanical engineering, renewable/alternative energy, and energy efficiency consulting. For over 29 years, we have assisted clients in reducing their exposure to leaks and premature building failures. Our philosophy is that buildings should last longer and be sustainable. Our experience is based on real world forensic analysis on hundreds of failed building envelope systems. We share this forensic knowledge with our clients and apply it in our design and engineering of new construction.


Karim Allana, PE, RWC, RRC

Karim P. Allana is the CEO and Senior Principal of ABBAE. Mr. Allana has a B.S. in Civil Engineering and is a licensed professional engineer in four states. He has been in the A/E and construction fields for 30+ years, specializing in forensic analysis and sustainable construction of roofing, waterproofing, exterior facade and solar systems. Mr. Allana founded ABBAE 29 years ago which employs over 100 employees in various regions of California, Washington State, and Hawaii. Mr. Allana’s experience stems from a broad background which includes working for Turner Construction Company and owning and operating a roofing and waterproofing company. Mr. Allana is also a world renowned construction defect expert and uses his forensic knowledge to reduce risk in new construction by incorporating lessons learned from failures.

Gerson Bers, LEED AP

Gerson Bers has been a Principal at ABBAE for over 10 years. He is a graduate of the University of Maryland, College Park where he received a B.S. in Physical Sciences. Mr. Bers is a LEED Accredited Professional and is a DOE certified WUFI ORNL instructor in Hydrothermal Analyses. He has more than 30 years of building technology consulting experience with special emphasis on design of new and remedial building enclosure system design as well as investigating and resolving moisture infiltration issues for occupied facilities. Mr. Bers is responsible for planning and executing forensic investigations and assists in preparing and reviewing findings reports and remedial repair construction documents and cost estimates. Mr. Bers has provided both expert and percipient testimony for construction defect litigation from both plaintiff and defendant perspectives. He is a frequent speaker and presenter at professional forums.


Petersen Lambert

Associate Principal for Allana Buick & Bers (ABBAE) with over 15 years of building envelope, roofing, waterproofing, and exterior wall systems experience. Mr. Lambert oversees project planning, production and team and client management for the region and provides quality control/quality assurance and construction administration services. His experience includes management of investigation, design, bid support, and construction phase services for new construction and renovation projects. Mr. Lambert specializes in resolving complex waterproofing issues during construction.



Alex Kaffka

Alex Kaffka is the Vice President of the Energy and Solar Division at ABBAE. He has 12 years of experience in real estate raising capital and structuring financial investments for energy projects, real estate investments and development projects, and private companies. He is an expert in identifying, structuring and underwriting whole-building energy solutions. He has an in-depth knowledge of Power Purchase Agreements and he works closely with a select group of energy finance providers to successfully identify, structure and close funding for clients.




  • High Performance Buildings
  • Life Expectancy & Longevity of Building Envelope Systems
  • Architectural Sheet Metal and Flashings
  • Emerging Energy Reduction Technologies


April 19, 2016

Irvine, CA

Hotel Irvine

17900 Jamboree Road

April 20, 2016

Los Angeles, CA

The Standard Downtown LA

550 S Flower Street

May 3, 2016

San Francisco, CA

Hyatt Regency

5 Embarcadero Ctr

May 12, 2016

Honolulu, HI

Hilton Waikiki Beach

2500 Kuhio Avenue

June 9, 2016

Seattle, WA

Grand Hyatt Seattle

721 Pine Street

Toll-Free: 1.800.378.3405 ext. 342              Email:

Copyright 2016 - Allana Buick & Bers. All Rights Reserved - Corporate Website