Jacob Deva Racusin is co-owner of New Frameworks Natural Design/Build, offering services in green remodeling, new construction, consultation, and education featuring low-impact high-performance building technologies. Through his work as a designer, builder, consultant, and educator, Jacob is able to merge his passions for fine craft, ecological stewardship, relationship to place, and social justice. Jacob is Program Director of the Certificate in Building Science and Net Zero Design at the Yestermorrow Design/Build School, and is a BPI-certified contractor and Certified Passive House Consultant. Jacob is the author of the books Essential Building Science, and The Natural Building Companion which he co-authored with Ace McArleton. An active member of the Embodied Carbon Network’s Renewable Materials Task Force, Jacob has been active in introducing sustainability measures into building codes, including the IRC and the Vermont Residential Building Energy Standard.