Rim Joist Insulation + Air Sealing: Warmer Floors, Lower Bills

🆓 Free Guide — Is Your Crawl Space Making Your Family Sick? The 4-Stage Warning Sign Checklist: 👉 https://buymeacoffee.com/csninja/e/52... Cold floors and high heating bills? Fix the rim joist the right way—air seal first, then insulate—for a warmer home and real savings. We're breaking down everything about rim joist insulation in this video, a crucial component for any crawlspace. Discover the differences between open cell and closed cell spray foam insulation and how to choose the right materials for maximum energy efficiency. This home improvement guide also covers drying methods, protection tips, and common mistakes to help with your diy projects. Tools & Materials: • Spray foam insulation starter kit - https://supply.crawlspaceninja.com/pr... • Mastic for duct seams - https://amzn.to/4oxF5mY • Exterior-grade caulk -https://amzn.to/3LBdxyA • Backer rod for weather stripping - https://amzn.to/4oFZqXr • Concrete crack repair kit (for foundation wall cracks) - https://supply.crawlspaceninja.com/pr... What you’ll learn: • How to find rim joist air leaks and seal them • The correct order: air seal → insulate (and why it matters) • Open vs closed cell for crawl spaces • “Dry it first”: moisture checks that prevent failures • Protecting from outside water for long-term results What do the scientists have to say: https://buildingscience.com/documents... Get Michael's Gold Award Winning Book (Print or Audio): "Crawl Space Repair Myths Busted" offers expert guidance: (https://amzn.to/3llnB1m) Support Michael, schedule a consultation, download Michael's Book in Spanish, get a Crawl Space Inspection Sheet and more: https://buymeacoffee.com/csninja/extras 20% OFF DIY Products Code: "youtube" Use at https://supply.crawlspaceninja.com 10% OFF DIY Mold Testing: https://fas.st/t/8cfyT8P3 Join our Ninja membership to get early access to all our content. Learn more at:    / @crawlspaceninja   *Contact Us:* Website: (https://CrawlSpaceNinja.com/) Schedule Free Inspection: (865) 659-0390 DIY Store: (https://supply.crawlspaceninja.com) DIY Store Phone: (865) 321-9314 *Disclaimer:* This information is for educational purposes only. Consult professionals for specific advice. Some links may be affiliate links, which means we may earn a small commission at no extra cost to you. #CrawlSpaceNinja #BasementNinja #RimJoist #CrawlSpace #AirSealing #Insulation #homeimprovement ⏱️ TIMESTAMPS: 00:00 - 00:11 Introduction and Title Card 00:11 - 01:40 The Importance of Rim Joist Air Sealing and Insulation 01:41 - 02:44 Recommended Products for Rim Joist Insulation 02:45 - 04:43 Open Cell vs. Closed Cell Spray Foam 04:44 - 06:18 Dry It First - Addressing Moisture Before Insulation 06:19 - 08:34 Protect from the Outside - Addressing Exterior Water Intrusion 08:36 - 09:51 Install Methods for Rim Joist Insulation 09:51 - 10:10 Conclusion, Call to Action, and Thanks