All Episodes

April 24, 2025 48 mins

Today we're talking about something toxic hiding right under your nose… inside the walls in your home, in fact.

The nasty pink fiberglass insulation contains formaldehyde and binding agents that release harmful VOCs into your home for years. Those tiny glass fibers can become airborne, causing respiratory issues, skin rashes, and eye irritation. Studies link long-term exposure to fiberglass to serious health conditions.

But what if there's a better alternative that's been around for thousands of years? Something that won't harm you, your family, or the planet. A material that naturally regulates moisture, reduces noise, resists fire, and actually helps clean your indoor air.

We explore why wool insulation is superior for homes and commercial buildings. Joining us is Andrew W. Legge, founder of Havelock Wool, who's passionate about New Zealand wool and creating positive change in the building industry.

 

KEY TAKEAWAYS

  1. What homeowners must consider when choosing healthy insulation
  2. The main different insulation products
  3. Common toxic materials found in conventional insulation
  4. How insulation materials affect indoor air quality and occupant health
  5. The sustainable and non-toxic insulation options available
  6. Differences in the installation process with wool
  7. Why wool has been growing in popularity as an insulation material
  8. How poor air quality can contribute to mental fatigue or other cognitive issues
  9. The short-term and long-term benefits of healthier building materials
  10. Misconceptions homeowners have about "green" or sustainable materials when it comes to insulation
  11. What homeowners or renovators should look for when choosing healthy materials

àFriends, to learn more about the incredible benefits of wool insulation, head over to https://havelockwool.com.css-j9qmi7{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;font-weight:700;margin-bottom:1rem;margin-top:2.8rem;width:100%;-webkit-box-pack:start;-ms-flex-pack:start;-webkit-justify-content:start;justify-content:start;padding-left:5rem;}@media only screen and (max-width: 599px){.css-j9qmi7{padding-left:0;-webkit-box-pack:center;-ms-flex-pack:center;-webkit-justify-content:center;justify-content:center;}}.css-j9qmi7 svg{fill:#27292D;}.css-j9qmi7 .eagfbvw0{-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#27292D;}

Mark as Played

Advertise With Us

Popular Podcasts

Las Culturistas with Matt Rogers and Bowen Yang

Las Culturistas with Matt Rogers and Bowen Yang

Ding dong! Join your culture consultants, Matt Rogers and Bowen Yang, on an unforgettable journey into the beating heart of CULTURE. Alongside sizzling special guests, they GET INTO the hottest pop-culture moments of the day and the formative cultural experiences that turned them into Culturistas. Produced by the Big Money Players Network and iHeartRadio.

Stuff You Should Know

Stuff You Should Know

If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks, then look no further. Josh and Chuck have you covered.

Dateline NBC

Dateline NBC

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2026 iHeartMedia, Inc.