Kevin O'Connor meets Zack Dettmore upstairs in the new primary bedroom where Zack is working to create a vent that will blend into the wall to keep the modern look. Meanwhile, Jenn Nawada and homeowner Peter tour the James Rose Center with director Dean Cardasis. Later, building science expert Christine Williamson gives Kevin a lesson on fighting water vapor and keeping walls dry year-round.

The show’s own verdict is on its page.