Our Team

Bill Voegele founded EXTECH/Exterior Technologies, Inc. in 1975 and has overseen the development of more than 20 unique architectural daylighting and other wall systems since its inception. He has also managed the EXTECH team through hundreds of design projects, and maintains a commitment to produce beautiful, functional, and well-engineered designs. Bill encourages creativity and adoption of new technologies in every arm of the company, and numerous United States patents have been issued in his name.

Before founding EXTECH, Bill managed Voegele Co. Inc.,  a contracting company founded by his father that specializes in roofing and industrial building exteriors. Bill earned his Bachelor of Engineering degree and graduated Summa Cum Laude from the University of California at Berkeley.

Kevin Smith leads the EXTECH team in the design and customization of daylighting and other façade technologies, and oversees projects from concept through implementation. He previously worked for the Port Authority of Allegheny County (one of the largest mass transit providers in Pennsylvania) and William Pleva Architects.

Kevin has over 35 years of experience managing projects through the design, award, and construction phases. He is a Registered Architect in the Commonwealth of Pennsylvania and received his Bachelor of Science in Architecture from Carnegie Mellon University.

Alan Lohr leads EXTECH’s engineering team and has been with the company for 35 years. He has been an integral part in the development of multiple EXTECH systems and custom designs. Prior to joining EXTECH, he was employed at TRACO and Johnson-Burgee Architects.

Alan has a degree in Architectural Engineering Technology from Penn State, and is a member of the International Code Council.

Bob Vas’ experience includes over 25 years in architectural design, structural engineering, facilities management, and manufacturing.

Bob has worked with EXTECH since 2009 and has expertise in project management, developing custom systems with architects, and working in a cross-functional role. Bob has worked for various manufacturers and building materials companies over the years, including BDI and others. He received his BS in Business Administration/Economics from the University of Pittsburgh.

John Anthony is an integral part of the architecture and engineering departments at EXTECH, where he designs new systems, manages daylighting and cladding system projects, and prepares fabrication documents. He has contributed to the development of several unique and patented EXTECH systems.

Prior to EXTECH, John practiced architecture locally for over 25 years, on a range of project types from performing arts to residential. John earned his Bachelor’s of Architecture from Carnegie Mellon University and is a Registered Architect in PA and a Certified Project Management Professional.

Sean organizes, schedules, and manages all EXTECH projects. He is an integral part of the EXTECH team and the main connection with clients, keeping projects moving along and the line of communication open.

Sean has spent the past 15 years managing projects in the IT, Healthcare, and Construction industries.  In his most recent role, he spent 8 years managing residential/commercial construction projects from start to finish.

Sean is highly talented in analyzing information and providing strategic planning for business operations.  His expertise in project management is essential for EXTECH’s planning and decision making.

Prior to joining EXTECH, Sean received a Bachelor of Science in Management Information Systems from the Indiana University of Pennsylvania where he graduated Magna Cum Laude with a minor in Computer Science.

Jen is one of EXTECH’s longest tenured employees and has had a hand in the company’s growth over the years. Jen started with EXTECH in February of 2001 as administrative assistant.

A true problem solver and doer, Jen quickly took on more responsibilities such as payroll, AP/AR, and then later light accounting. Jen is a Pennsylvania Notary Public, and her multifaceted skill set has helped EXTECH grow over her past 20+ years with the company.

Arthur Campbell is EXTECH’s Senior Estimator and has been a part of the team for 36 years. His responsibilities include analyzing contract documents and engineering data, project estimation, and bid proposal preparation related to custom systems for commercial and industrial applications.

Prior to EXTECH he worked in the HVAC consulting and general contracting industries. Mr. Campbell holds an Associate’s Degree in Architectural Drafting and Design.

Brad Bartley joined EXTECH in 2025, bringing over 25 years of experience in the architectural glazing industry. His background spans management, sales, and product development, with expertise in glazing and fenestration.  Brad began his career in 2001 at TRACO Commercial Windows and went on to hold various sales and leadership roles at Serious Materials, AGC Glass North America, and most recently, Consolidated Glass Corporation. Prior to his corporate career, he worked in his family’s commercial construction business, eventually serving as President & CEO.  A graduate of Geneva College with a degree in Business Administration and Industrial Engineering, Brad has also been active in industry organizations, including the Construction Specifications Institute, NGA, the Building Envelope Contractors Conference, and the Protective Glazing Council.

Dan Shuman is the Engineering Manager at Exterior Technologies, Inc. (EXTECH), bringing nearly three decades of experience in fenestration product design. A native of Dover, PA, Dan earned his Bachelor of Science in Industrial Technology from Millersville University in 1996. Over the past 28 years, he has specialized in the design and development of windows, curtain walls, entrance doors, and storefront systems. His career includes key engineering and design roles at respected industry firms such as Architectural Testing, Product Design and Development, Architectural Window, TRACO, CENTRIA, and Bunting Architectural Metals. Dan’s deep technical expertise and industry-spanning experience contribute to EXTECH’s commitment to innovative, high-performance building envelope solutions.

Colin Butt is an Estimator at EXTECH, where he leverages his diverse background in architectural metalwork and custom fabrication to develop accurate project estimates and quotes. A 2007 graduate of the Art Institute of Pittsburgh with a bachelor’s degree in Industrial Design, Colin began his career as a designer focused on drafting and preparing shop and fabrication drawings. Over time, his role expanded to include responsibilities in sales, estimating, material procurement, and project management, giving him a well-rounded understanding of the entire project lifecycle. At EXTECH, Colin applies this expertise by reviewing project specifications along with architectural and structural drawings to support successful project planning and execution.

Victoria began her career at EXTECH in May of 2021, leading the company’s communications and marketing. She is a storyteller, eager to educate and inspire curiosity about innovations and advancements within the building space.

Victoria brings the desire to take on challenges and creatively solve them through ingenuity. She strives to stay on the forefront of technology and digital marketing.

Victoria’s background includes 10+ years in the manufacturing industry, holding various creative and marketing positions. She graduated from PennWest University with a bachelor’s degree in journalism and business.

Joanna Halligan serves as Controller at EXTECH, bringing over 25 years of experience in financial management across diverse industries, including banking, real estate development, and the funeral services sector. She specializes in financial reporting and analysis, budgeting, and leading all facets of accounting operations. Her strategic oversight includes implementing process improvements and identifying operational efficiencies that support long-term financial health. Joanna earned her BSBA in Accounting from Robert Morris University, complemented by studies in IT Administration at Milwaukee Technical College and Environmental Systems at Opole University in Poland.

Abigail Grychowski brings a unique blend of creative vision and technical insight to her role in Architectural Support at EXTECH. With a background that bridges architecture, mechanical engineering, and the arts, she collaborates closely with architects and design teams to develop innovative façade and daylighting solutions that meet both aesthetic and performance goals.

Abigail plays a key role in coordinating design intent with EXTECH’s engineering and fabrication teams, ensuring that systems meet project requirements while maintaining architectural integrity. Her experience spans architectural product sales, design communication, and specification support, and she is deeply passionate about sustainable building practices and high-performance building envelope systems.

Before joining EXTECH, Abigail worked in architectural design across commercial, industrial, and residential sectors—gaining hands-on experience in navigating building codes, zoning research, and client collaboration. She holds a B.A. in Architecture and Studio Arts from the University of Pittsburgh and has a 2-year background in Mechanical Engineering from Gannon University.

Cristina Tuyls is the Procurement and Inventory Manager at EXTECH, bringing over 20 years of experience in purchasing, planning, and project management within the manufacturing sector. She plays a key role in overseeing supply chain operations, managing inventory levels, and ensuring the timely procurement of materials to support project demands. Known for her strategic approach and attention to detail, Cristina contributes to the efficiency and reliability of EXTECH’s production processes. Her extensive background in manufacturing environments adds valuable expertise to the company’s operational team.