As COO and founding partner of 475 High Performance Building Supply (475), Ken takes a leading role in implementing Passive House construction strategies, product selection and technical hands-on training. 475 is a recognized as providing thought leadership and essential products that enable successful high performance and Passive House projects of all scales and uses, across the U.S. and Canada. Ken is a founding board member of New York Passive House, the North American Passive House Network, and Passive House Alliance – and he is also a delegate to the International Passive House Association – all leading organization in Passive House development.