About 475 High Performance Building Supply

We are a mission-driven supplier providing the essential components required to build high-performance, airtight, and vapor-open building envelopes. Our curated selection of professional-grade materials empowers architects and builders to meet rigorous Passive House standards while ensuring long-term structural durability.

Our Mission

To lead the building industry’s transformation toward sustainable, low-energy construction by providing high-performance solutions that prioritize ecological integrity and interior comfort.