Mary Arntzen, P.E., is a Consulting Engineering with Simpson Gumpertz & Heger in Waltham, MA. She is experienced in the design, investigation, and rehabilitation of building enclosure systems. Mary serves as a project manager for various large and complex projects and regularly reviews glass-and-metal curtain walls, windows, roofing, plaza waterproofing, cladding, and below-grade waterproofing systems. She can be reached at MCArntzen@sgh.com.
Understanding the energy code requirements and how to properly calculate the fenestration U-factors is an important skill to develop to inform the building-enclosure design
