NBS #100: The Building Science Secrets Every Homeowner Needs to Know

Send us Fan MailIn this episode, Michael Rubino sits down with Brantley May, a Building Scientist and Council-Certified Indoor Environmental Consultant with a specialty in Mycology. Certified by the McCrone Research Institute and the Oshner Medical Center, Brantley is trained in the examination and identification of fungal spores and pollen via microscopy.Brantley holds certifications from the Building Performance Institute as a Building Analyst, Building Envelope Professional, and Infiltration and Duct Leakage Expert. He also has extensive credentials in mycotoxin identification, water damage, odor control, structural drying, infectious disease control, and energy efficiency issues, and is currently a student of Mechanical Engineering.As a state-licensed mold assessor, Brantley carries the credentials to teach and proctor exams for other professionals seeking state accreditations in mold and environmental services. His expertise bridges the gap between building performance and occupant health — uncovering root causes of moisture, ventilation, and contamination issues that often go undetected.In this episode, we cover:The role of building science in indoor environmental healthCommon construction flaws that lead to hidden mold growthThe dangers of moisture intrusion and poor ventilationWhy testing and building forensics matter for long-term healthBrantley’s top recommendations for homeowners and contractorsWhether you’re building, renovating, or troubleshooting, this conversation will change how you think about your home’s health.📌 Resources & Links:Guest: Brantley May — @brantley.iaqEnviroHealth: https://www.envirohealth.coNotable Timestamp Highlights00:00 — Intro to Brantley May & building forensics01:20 — Common moisture issues in different climates03:44 — Hidden mold in “clean” homes07:14 — Spray foam attic pros & cons explained12:44 — Why most spray foam attics fail in humid climates15:44 — Chemical off-gassing & ROI concerns17:50 — Tight homes & ventilation needs22:34 — Ideal ACH & fresh air intake strategies28:31 — Why ERVs don’t work well in humid climates31:33 — Vented attic pros36:07 — Vented attic cons & condensation risks40:19 — Retrofits vs. new builds: where to start43:24 — The soffit-blocking insulation mistake47:17 — Common HVAC system failures49:39 — Why proper sizing is critical for humidity control53:04 — Duct balancing & pressure issues55:14 — Why most HVAC techs don’t address air quality57:45 — How to work with Brantley🔵 My Favorite Cleaning Products: https://www.homecleanse.com/shop/🔵 Remediation FREE Consultation: https://www.homecleanse.com/contact/🔵 The Dust Test: https://www.thedusttest.comLearn More:https://www.themichaelrubino.com/ https://www.homecleanse.com/shopLet’s Connect...Website: https://www.themichaelrubino.com/contact/IG: https://www.instagram.com/themichaelrubino/TikTok: https://www.tiktok.com/@themichaelrubinoFB: https://www.facebook.com/themichaelrubino/LinkedIn: https://www.linkedin.com/in/themichaelrubino/