Our Team
We are committed to the delivery of attentive, responsive problem solving services.
David E. Sacks, AIA
Founding Principal
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David is committed to the success of Architectural Consulting & Forensics and the partnerships with its clients. He understands that the foundation of all successful projects combines technical accuracy with timely and efficient communication.
David is a licensed architect with an M.Arch and MSCE from the University of Michigan. He is experienced in the evaluation of building enclosures for both new and existing buildings, with a wide array of building enclosure material expertise ranging from architectural terra cotta, stone, and brick, to modern MCM and curtain wall systems.
David supports the hands-on approach to learning and believes in the importance of getting your hands (and boots, jeans, etc.) dirty. He is an active member of ASTM D-08 Committee on Roofing and Waterproofing and a former APT Western Great Lakes Board Member. His work has been published in technical journals and he has spoken at both local and national events.
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Anthony joined ACF at the start of the 2024 summer. He is currently pursuing a Master of Architecture degree at the Illinois Institute of Technology. He holds a Bachelor of Science in Architectural Studies from the University of Illinois Urbana-Champaign, where he built a strong foundation in understanding and designing the built environment. His current focus is on designing efficient building enclosure systems, with a dedication to contributing to a more sustainable future.
Prior to joining ACF, Anthony worked as an architectural intern at a local Chicago firm where he assisted with design and permitting for new construction single family residences. He was also the Treasurer for the Society of Business Management in Architecture while at UIUC.
Passionate about integrating innovative design with environmental performance, Anthony is also committed to working towards licensure. Outside of work, he enjoys exploring the city and traveling, both of which inspire his creativity and approach to problem-solving. He prioritizes collaboration and communication, ensuring that every project he works on reflects excellence and innovation.
Building Enclosure Consultant Intern
Anthony Skokal, Assoc. AIA
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Rachelle joined ACF as a Building Enclosure Consultant intern in 2024. She holds a Bachelor of Science in Architecture from the University of Minnesota, where she spent a semester abroad in Copenhagen, Denmark. A relative newcomer to Chicago, Rachelle is in her second year of the Master of Architecture program at UIC where she also works as a Teaching Assistant for undergraduate architecture classes.
Prior to joining ACF, Rachelle worked as an architectural designer at firms in Minnesota and Wisconsin where she assisted with the design of multifamily, historic, commercial, and hospitality projects. She also spent a year with a nonprofit in Pittsburgh restoring blighted urban streams in Western Pennsylvania. These professional experiences, paired with a curiosity for all things architecture and a commitment to learning, have allowed her to support ACF with field reports, site visits, technical writing, and document review. Rachelle is particularly interested in blending technical expertise with intentional design to create equally beautiful and functional architecture.
Outside of work, Rachelle enjoys sketching, water coloring, and dining her way around Chicago.
Rachelle Hallberg
Building Enclosure Consultant Intern
Get in touch.
Have a project or question? Our team is ready to assist with all your building enclosure consulting needs — from design review and testing to forensic investigation and restoration.
Reach out to us to discuss your project, request a proposal, or schedule a consultation. We look forward to collaborating with you to ensure your building performs as intended.