Karla Butterfield

Karla Butterfield

Sustainability Director

Karla Butterfield of Steven Winter Associates.

Started with Firm: 2007

B.A. Architecture, Northeastern University

LEED AP, Homes
LEED for Homes Green Rater
NGBS Master Verifier
RESNET certified HERS Rater
PHIUS+ Rater & MF Verifier

Karla Butterfield is a Sustainability Director at SWA, working with residential buildings. She has 30 years of experience, with expertise in sustainable consulting services, program certification support, and implementation of high performance building technologies. With architects, developers, builders, and homeowners, Karla develops specific sustainability strategies for both new construction and renovations. Her consulting work includes sustainability for residential buildings; selection of environmentally preferable products; analysis of resource-efficient appliances and building equipment; writing and implementing construction and deconstruction plans; and emphasizing energy conservation, environmental protection, and occupant health and safety. She participates as an integral partner in the initial strategic planning sessions and stakeholder workshops based on criteria for various certification programs. Karla is a Home Innovation Research Labs’ NGBS Verifier, PHIUS +Rater and +Verifier, and promoter of Net Zero Energy and low embodied carbon buildings. She uses energy modeling software to analyze plans and specifications, and makes recommendations for sustainability strategies. These may include thermal, air, and vapor barriers, as well as mechanical efficiencies, building materials, and indoor air quality.

Karla is a member of the Connecticut Green Building Council and the Governor’s Council on Climate Change Working Group, and she serves as co-chair on the Board of Directors at Steven Winter Associates. She also serves on the EEBA Board of Directors and Building Science Advisory Council, the National Green Building Standard as a TA Advisor and 2024 Consensus Committee member, and the National Association of Home Builders (NAHB) Sustainability sub-committee. Karla is an experienced presenter who contributes to several conferences and workshops each year on the industry’s leading topics.

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