Building Science 101: Understanding Vapor Control

Building Science 101: Understanding Vapor Control

July 10, 2026 · 32 min · Season 5 · Episode 227

About this episode

Matt Risinger explores vapor control in building science, emphasizing moisture management and practical principles for builders.

Matt Risinger explores one of the most misunderstood topics in building science: vapor control. Sponsored by Huber Engineered Woods, the episode explains why managing moisture is less about stopping vapor and more about preventing condensation inside building assemblies. Using a replay from the Building Science 101 series with Steve Baczek, Matt breaks down how vapor moves through walls, roofs, and floors, why climate and material selection matter, and how builders can make smarter decisions about vapor retarders and air barriers. The conversation focuses on practical building science principles that improve durability, moisture management, and long-term building performance rather than relying on outdated rules of thumb.

People in this episode

Host: Matt Risinger

Guest: Steve Baczek

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Sponsors

Huber Engineered Woods

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