Never Use 6 Mil Vapor Barrier in Crawl Space (Here's Why It Fails)

Why Your Upstairs Is Hot Even With Good AC

Send us Fan Mail [https://www.buzzsprout.com/2371248/fan_mail/new] Is your upstairs always hot even when your AC is running? You're not imagining it — and your AC probably isn't broken. In this video, Crawl Space Ninja founder Michael Church explains the five real reasons your second floor stays hot all summer long, and exactly what to do about each one. We cover attic heat and radiant heat transfer, air sealing and the stack effect, leaky ductwork running through hot attics, poor attic ventilation, and HVAC airflow imbalance in two-story homes. If you've been blaming your AC, this video will change how you think about your whole house. 🆓 FREE Attic Air Seal & Insulate Guide: 👉 https://buymeacoffee.com/csninja/e/478323 🛒 DIY Store — Professional-Grade Materials: 👉 crawlspaceninja.com/supply 📞 Book a Personal Consultation with Michael: 👉 buymeacoffee.com/csninja Support the show [https://buymeacoffee.com/csninja] Check out Michael's book, "Crawl Space Repair Myths-Busted [https://amzn.to/3llnB1m]" now available on Amazon! Schedule a consultation: https://buymeacoffee.com/csninja/extras [https://buymeacoffee.com/csninja/extras] Need help: https://crawlspaceninja.com [https://crawlspaceninja.com/] or https://supply.crawlspaceninja.com [https://supply.crawlspaceninja.com]

The Biggest Crawl Space Lie Homeowners Still Believe

Send us Fan Mail [https://www.buzzsprout.com/2371248/fan_mail/new] Crawl space vents don't dry out your crawl space — they make it worse. In this video, Crawl Space Ninja founder Michael Church explains why open crawl space vents cause mold, wood rot, and poor indoor air quality in your home. Learn the building science behind crawl space moisture, the stack effect, and the simple 3-step fix to seal your crawl space the right way. 🆓 Free Guide — Is Your Crawl Space Making Your Family Sick? The 4-Stage Warning Sign Checklist: 👉 buymeacoffee.com/csninja/e/521376 📚 Get complete guidance in my Gold Award Winning Book "Crawl Space Repair Myths Busted" (https://amzn.to/3llnB1m) Schedule a consultation, get a Crawl Space Inspection Sheet and more: https://buymeacoffee.com/csninja/extras Join our Ninja membership to get early access to all our content: https://www.youtube.com/channel/UCIdzZrKCdyNf1Oh1cGjSYnA/join 20% OFF DIY Products Code: "youtube" Use at https://supply.crawlspaceninja.com 10% OFF DIY Mold Testing: https://fas.st/t/8cfyT8P3 **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  #CrawlSpaceNinja #IndoorAirQuality #HomeImprovement #BuildingScience #MoldPrevention #CrawlSpaceMoisture #DIY #HomeRepair #HealthyHome Support the show [https://buymeacoffee.com/csninja] Check out Michael's book, "Crawl Space Repair Myths-Busted [https://amzn.to/3llnB1m]" now available on Amazon! Schedule a consultation: https://buymeacoffee.com/csninja/extras [https://buymeacoffee.com/csninja/extras] Need help: https://crawlspaceninja.com [https://crawlspaceninja.com/] or https://supply.crawlspaceninja.com [https://supply.crawlspaceninja.com]

Never Use 6 Mil Vapor Barrier in Crawl Space (Here's Why It Fails)

Send us Fan Mail [https://www.buzzsprout.com/2371248/fan_mail/new] If a contractor tells you 6 mil plastic is good enough for your crawl space vapor barrier, they're either lying or don't know what they're talking about. In this video, I'll show you exactly why 6 mil vapor barriers fail, what it's costing you, and what you should use instead. 📚 Get complete guidance in my Gold Award Winning Book "Crawl Space Repair Myths Busted" (https://amzn.to/3llnB1m) 📥 Download our Crawl Space Inspection Checklist: https://buymeacoffee.com/csninja/extras Join our Ninja membership to get early access to all our content: https://www.youtube.com/channel/UCIdzZrKCdyNf1Oh1cGjSYnA/join Get a Free Estimate: https://crawlspaceninja.com/estimate 20% OFF DIY Products Code: "youtube"  Use at 🛠️ DIY CRAWL SPACE SUPPLIES: 👉 https://supply.crawlspaceninja.com 10% OFF DIY Mold Testing: https://fas.st/t/8cfyT8P3 ⚠️ THE 4 MAJOR PROBLEMS WITH 6 MIL VAPOR BARRIERS: 1️⃣ TOO THIN - Tears easily with foot traffic, HVAC contractors, plumbers, and electricians going through your crawl space. 70-80% are damaged within 2 years. 2️⃣ PEST DAMAGE - Rodents, mice, rats, and possums tear through 6 mil plastic like tissue paper. They live underneath it, creating moisture, odors, and serious health hazards. 3️⃣ POOR SEALING - Most contractors just overlap the seams without taping. Moisture vapor still gets through unsealed seams, making it almost completely ineffective. 4️⃣ MOISTURE FAILURE - 6 mil is designed for vapor, not standing water. After heavy rains, it floats around, exposing dirt and allowing moisture to evaporate into your floor joists, causing mold and wood rot. 💰 HIDDEN COSTS OF 6 MIL PLASTIC (10-Year Total): • Replacement every 2-3 years: $1,500-$3,000 • Increased energy bills: $3,600-$9,000 • Mold remediation: $3,000-$15,000 • Pest control & cleanup: $500-$3,000 • Structural repairs: $5,000-$25,000 • Insulation replacement: $2,000-$5,000 TOTAL: $15,000-$50,000+ Compare that to a proper 12 mil encapsulation system: $4,000-$8,000 upfront, lasts 20-25 years with minimal maintenance. That's only $300/year vs $667/year+ for 6 mil. ✅ WHAT YOU SHOULD USE INSTEAD: • 12 mil solid vapor barrier OR 12 mil woven vapor barrier • Proper vapor barrier seam tape (not duct tape) • Mechanical fasteners (Christmas tree fasteners or Hilti nails) • Double-sided butyl tape for wall attachment • Crawl space dehumidifier (essential - plastic alone isn't enough) **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 #CrawlSpace #VaporBarrier #CrawlSpaceEncapsulation #HomeImprovement #DIY #BasementWaterproofing #MoldPrevention #IndoorAirQuality #HomeRepair #CrawlSpaceNinja #6MilVaporBarrier #12MilVaporBarrier #MoistureControl #Dehumidifier #HomeInspection #RealEstate #HealthyHome #BuildingScience Support the show [https://buymeacoffee.com/csninja] Check out Michael's book, "Crawl Space Repair Myths-Busted [https://amzn.to/3llnB1m]" now available on Amazon! Schedule a consultation: https://buymeacoffee.com/csninja/extras [https://buymeacoffee.com/csninja/extras] Need help: https://crawlspaceninja.com [https://crawlspaceninja.com/] or https://supply.crawlspaceninja.com [https://supply.crawlspaceninja.com]

Soft Floors and High Humidity? Your Crawl Space Has a Serious Problem

Send us Fan Mail [https://www.buzzsprout.com/2371248/fan_mail/new] Most people never look in their crawl space, but that hidden space can quietly change the air your family breathes every day. We walk through three practical warning signs you can check from inside the house right now: a musty odor that shows up when the HVAC turns on, hardwood floors that feel ridged from cupping, and a simple humidity test using your HVAC registers. We dig into why these clues matter and how they connect to real crawl space moisture problems like high humidity, mold growth, damp soil, and even early wood rot. You’ll hear why “old house smell” is often a myth, how nose blindness makes the problem easy to ignore, and why calling a flooring contractor can be the wrong first move if the subfloor is wet. We also explain how to use a basic humidity reader on a register, what readings can signal trouble, and why it’s smart to rule out HVAC maintenance issues while also checking for condensation on ductwork. Then we zoom out to the bigger picture: indoor air quality and health. We talk about humidity as a driver of dust mites and asthma triggers, plus the “chimney effect” that pulls air from the crawl space up into your living space. Finally, we outline clear next steps, including improving drainage with gutters and downspouts, measuring crawl space humidity, installing a vapor barrier over dirt floors, and using a crawl space dehumidifier when needed. Support the show [https://buymeacoffee.com/csninja] Check out Michael's book, "Crawl Space Repair Myths-Busted [https://amzn.to/3llnB1m]" now available on Amazon! Schedule a consultation: https://buymeacoffee.com/csninja/extras [https://buymeacoffee.com/csninja/extras] Need help: https://crawlspaceninja.com [https://crawlspaceninja.com/] or https://supply.crawlspaceninja.com [https://supply.crawlspaceninja.com]

I've Seen $15K in Mold Damage From "Code-Compliant" Basement Insulation (Do This Instead)

Send us Fan Mail [https://www.buzzsprout.com/2371248/fan_mail/new] Basement insulation mistakes are costing homeowners thousands - even when they pass building code inspections. In this video, I reveal the biggest basement insulation problems I see after 20+ years in the field, and show you exactly how to insulate your basement the RIGHT way for maximum energy efficiency and zero moisture problems. 🚨 CRITICAL TOPICS COVERED: ✅ Why building code minimum requirements will fail you ✅ Best practices for basement wall insulation (R-values that actually work) ✅ Worst practices that create mold and moisture problems ✅ Fiberglass batts vs rigid foam insulation (the truth) ✅ Proper air sealing techniques for rim joists ✅ Real cost comparison: cheap vs quality insulation ✅ How to prevent moisture problems before insulating ✅ When to DIY vs when to hire a professional 📚 Get complete guidance in my Gold Award Winning Book "Crawl Space Repair Myths Busted" (https://amzn.to/3llnB1m) Schedule a consultation, get a Crawl Space Inspection Sheet and more: https://buymeacoffee.com/csninja/extras 🛠️ TOOLS & MATERIALS (Amazon Affiliate Links): 20% OFF DIY Products Code: "youtube" Use at https://supply.crawlspaceninja.com Rigid Foam Insulation Tools: https://supply.crawlspaceninja.com/collections/equipment-rentals Moisture Meter: https://supply.crawlspaceninja.com/collections/moisture-detectors-alarms Spray Foam Sealant: https://supply.crawlspaceninja.com/collections/insulation Safety Equipment: https://amzn.to/3ZM7A5B Mold Products: https://supply.crawlspaceninja.com/collections/mold-products Ramset Powder Actuated Fastening Tool: https://amzn.to/3O5vINX Foam Insulation Cutting Tool/Hot Knife: https://amzn.to/3MiYtGx Thermal Imaging Camera (FLIR ONE Pro): https://amzn.to/4qQ6phs Loctite PL300 Foam Board Adhesive: https://amzn.to/4rwMVhT 10% OFF DIY Mold Testing: https://fas.st/t/8cfyT8P3 **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 #BasementInsulation #BasementWaterproofing #HomeImprovement #DIY #BuildingScience #EnergyEfficiency #MoldPrevention Support the show [https://buymeacoffee.com/csninja] Check out Michael's book, "Crawl Space Repair Myths-Busted [https://amzn.to/3llnB1m]" now available on Amazon! Schedule a consultation: https://buymeacoffee.com/csninja/extras [https://buymeacoffee.com/csninja/extras] Need help: https://crawlspaceninja.com [https://crawlspaceninja.com/] or https://supply.crawlspaceninja.com [https://supply.crawlspaceninja.com]