Structure Talk

From Carpenter to HVAC Designer: Lessons on Building High-Performance Homes (with Sophie Ashley)

To watch a video version of this podcast, click here: https://youtu.be/U0ALmS9vUC0In this episode, Reuben Saltzman and Tessa Murry talk with Sophie Ashley of Energy Vanguard about her journey from hands‑on carpentry and post‑Katrina rebuilding work to becoming an HVAC designer for high‑performance homes. Sophie shares how her field experience shaped her understanding of building science and why proper load calculations, ventilation strategies, and dehumidification planning are essential for modern airtight homes.The conversation also explores the challenges of open‑cell spray foam, moisture buildup in encapsulated attics, and what builders and inspectors often overlook in new construction. Sophie breaks down heat‑pump retrofits, electrification trends, and the importance of balancing comfort, durability, and system design—offering practical, science‑based insights for anyone working with or living in high‑performance homes.Here's the link to Inspector Empire Builder: https://www.iebcoaching.com/eventsYou can check out Energy Vanguard website here: https://www.energyvanguard.com/TakeawaysTight, high‑performance homes often require dedicated dehumidification, even in northern climates.Open‑cell spray foam allows moisture movement, which can raise attic humidity and impact roof decks.Proper HVAC design requires accurate load calculations, not rule‑of‑thumb sizing.Balanced ventilation (HRVs/ERVs) is essential in tight homes; Minnesota enforces some of the strictest standards.Retrofitting heat pumps into existing homes requires duct evaluation—it’s not a simple swap.Many builder issues stem from overlooked details: attic access leaks, duct issues, missing covers, and ceiling‑plane air leaks.Electrification is growing, but homeowners must understand system impacts and design considerations.Chapters00:00 — Introduction02:00 — Sophie’s Background & Career Path05:00 — High‑Performance Building & HVAC Design11:00 — Ventilation, ERVs & Climate Differences15:00 — Dehumidification in Airtight Homes17:00 — Moisture Problems with Open‑Cell Foam22:00 — Solutions: Conditioning Attics & Diffusion Ports26:00 — Heat Pumps, Dual‑Fuel & Proper Sizing31:00 — Electrification Trends38:00 — Common New‑Construction Issues47:00 — Field Lessons & Moisture Failures52:00 — How to Reach Sophie53:00 — Closing Remarks

Most furnaces have insufficient airflow (w/ Steve Rogers)

To watch a video version of this podcast, click here: https://youtu.be/eK-WIS7inMUIn this episode, Reuben Saltzman and Tessa Murry talk with Steve Rogers, President of The Energy Conservatory (TEC), about the science behind home performance and why so many HVAC systems fall short of expectations. Steve shares TEC’s journey from early prototypes to industry‑standard testing tools and explains how comfort, moisture, and efficiency issues often stem from the building envelope. The conversation dives into blower doors, airflow testing, duct leakage, furnace short‑cycling, restrictive filters, oversized systems, and the key measurements inspectors and homeowners commonly miss, offering practical insights for homeowners, inspectors, HVAC technicians, and building‑science enthusiasts alike.You can check out The Energy Conservatory website here: www.energyconservatory.comTakeawaysTEC manufactures tools that measure building airtightness, duct leakage, and airflow—core metrics for diagnosing home performance issues.Blower door testing became essential because leaky houses waste energy, cause comfort issues, and contribute to attic moisture problems.Early blower door prototypes were expensive and slow; TEC revolutionized the field with affordable, efficient models.Airflow is one of the hardest HVAC metrics to measure accurately; TEC’s TruFlow Grid helps techs commission systems properly.Most furnaces and ACs are never tested for correct airflow after installation, which leads to early equipment failure and poor efficiency.High temperature rise = low airflow. This often causes the furnace to hit its high‑limit switch and shut off prematurely.Oversizing is rampant—many homes have furnaces 1.5–2× larger than needed, increasing noise, inefficiency, and comfort issues.Filter restrictions depend on pressure drop, not just MERV rating. Pleat depth and surface area matter more than the number printed on the label.3M Filtrete filters maintain reasonable pressure drops because they add pleats as MERV levels increase.The most important starting point in energy upgrades is a blower door test, not HVAC replacement.Older homes—especially balloon‑framed houses—are extremely leaky and need targeted air‑sealing.Complicated house shapes (L‑shaped, multi‑level splits, many dormers) are typically leakier than simple rectangular designs.Many contractors still do not measure airflow or static pressure, causing repeat callbacks and inefficiency.TEC’s tools and apps help HVAC techs commission systems properly—reducing callbacks and improving system performance.Homeowners can access subsidized energy audits through utilities, often including blower door and infrared inspections.Chapters00:00 — Introduction and Guest Welcome02:00 — Steve’s Background & The Origin of The Energy Conservatory05:00 — How Blower Doors Were Invented & Early Challenges08:00 — Engineers, Inventors & TEC’s Company Culture11:00 — Advances in Airflow Testing: TruFlow Grid Explained15:00 — Why Airflow Is Critical for Furnace & AC Efficiency17:00 — Temperature Rise, High‑Limit Switches & Furnace Cycling20:00 — Common Installation Issues & What Inspectors Should Look For22:00 — The Truth About Furnace Filters & Pressure Drop26:00 — Oversizing Problems & Proper Equipment Matching31:00 — Why Most Homes Have Comfort Problems (and How to Fix Them)35:00 — Blower Door Testing as the First Step in Home Performance38:00 — Moisture, Attic Frost & Air Leakage Pathways41:00 — Styles of Homes That Tend to Be Leakier44:00 — Balloon Framing vs. Platform Framing47:00 — Why the Industry Changes Slowly & The Role of Training52:00 — How Homeowners Can Learn More & Access Energy Audits53:00 — Closing Tho

Private Equity buying up service companies: good or bad? (with Noah Gavic)

To watch a video version of this podcast, click here: https://youtu.be/4LmP_3WOezgIn this episode, Reuben Saltzman and Tessa Murry welcome Noah Gavik from Brothers Underground to discuss the impact of private equity on the home service industry. They explore the benefits, challenges, and ethical considerations of private equity ownership, as well as how it influences business operations, customer relationships, and overall market dynamics.Here's the link to Inspector Empire Builder: https://www.iebcoaching.com/eventsTakeawaysPrivate equity (PE) buys service companies to generate higher, faster returns than traditional investments.PE ownership typically brings major operational changes—software, compensation, insurance, branding, and company culture.Large PE-backed companies can outspend small businesses on marketing (especially Google ads), pushing independents down in search visibility.Consolidation can create near‑monopolies in some markets, reducing consumer choice and increasing prices.Strong profit pressure often leads to aggressive or ethically questionable upselling, shifting focus away from true customer needs.Big roll‑ups can erode the personal relationships customers value, causing long‑time employees and clients to leave.PE-owned firms heavily emphasize metrics—conversion rates, revenue per call, average ticket—sometimes at the expense of service quality.Smaller companies win through trust, direct communication, craftsmanship, and community‑based referrals rather than high‑pressure sales.Huge review counts can hide negative experiences; fewer but consistent 5‑star reviews from smaller companies often reflect better service.Consumers should rely on referrals (inspectors, tradespeople, neighbors, realtors) instead of only choosing the top sponsored Google results.Selling to PE isn’t inherently bad, but owners must understand PE’s goals and be prepared for major cultural and operational changes.When interest rates rise and profits tighten, PE buying slows—but consolidation continues long-term.Chapters00:00 Introduction and Guest Welcome02:15 Understanding Private Equity05:01 The Mechanics of Private Equity07:33 The Impact of Private Equity on the Market11:03 The Good, the Bad, and the Ugly of Private Equity17:58 Navigating Changes Post-Acquisition22:09 Personal Perspectives on Selling to Private Equity26:11 The Power of Referrals in Service Industries28:32 Private Equity's Impact on Business Operations31:13 Sales Techniques and Customer Education33:02 Ethics vs. Profit in Business36:01 The Future of Small Businesses in a PE-Dominated Market37:43 Balancing Profitability with Customer Relationships41:16 Ethics in Sales and Customer Service44:01 Navigating the PE Landscape for Business Owners48:26 Building a Reliable Network for Service Providers

How important is flashing? (with Eric Houseman)

To watch a video version of this podcast, click here: https://youtu.be/0US0bHGynQoIn this episode, Reuben Saltzman and Tessa Murry once again welcome Structure Tech’s Service Manager, Eric Houseman, for a deep dive into one of the most debated topics in home inspections: flashing and exterior water management. Prompted by an email from fellow home inspector Chris, the discussion explores real-world challenges with flashing details, siding clearances, and the gap between best practices and industry standards. The episode highlights why these details are often overlooked, how that impacts homes, and what inspectors and homeowners should know to avoid costly hidden damage. Here's the link to Inspector Empire Builder: https://www.iebcoaching.com/eventsTakeaways“No damage yet” is not a valid reason to ignore improper flashing—problems can take years to surface.You often cannot confirm the absence of damage without intrusive inspection, so assumptions are risky.Even small, undersized, or poorly angled kick‑out flashings can increase water intrusion potential.Head flashing/drip caps above windows and doors are universally required by manufacturers—even if local builders claim otherwise.Context matters: overhangs, siding type, wall assembly, and home age affect how serious missing flashing is.Water‑resistant barriers and tape alone cannot replace properly installed rigid flashing.When in doubt, report the defect clearly and let the builder or homeowner decide the next steps.Home inspectors must balance clarity, liability, and real‑world practicality when writing reports.Builder and agent pushback is common—but manufacturer instructions are the ultimate authority.Good bedside manner and client communication can prevent inspectors from being labeled “deal killers.”Chapters00:00  Intro and episode setup00:27  Welcoming back Eric Houseman00:56  Show sponsor: IEB01:40  Listener Chris’s email and the topic of exterior water‑management defects02:47  Question 1: Kick‑out flashing05:23  Undersized or improperly angled kick‑outs06:15  “There’s no damage—why mention it?”08:06  When and why Structure Tech calls out inadequate kick‑outs09:43  Real‑world builder behavior and simple fixes11:11  How wording in reports focuses on increased potential for problems12:10  Balancing best practice and liability13:53  Question 2: Drip caps and head flashing17:12  Why windows and openings universally require rigid flashing18:37  Builder pushback: “It’s not required.”21:07  What siding manufacturers expect (and why it matters)24:03  Considering home age, siding type, and overhangs25:46  A continuum of concern: stucco vs. vinyl28:08  How Structure Tech phrases drip‑cap comments29:12  Question 3: Z‑flashing, drainage gaps, and siding clearance31:57  Manufacturer requirements vs. real‑world installations32:46  Structure Tech’s canned report language36:57  Should you mention missing kick‑outs on older homes? (Yes.)38:48  Reuben’s personal stucco repair story41:25  Why missing flashing matters even on pre‑1990s homes41:43  How to respond when builders say “No other inspector reports this”45:13  Handling pushback and the “deal killer” label47:26  How agents affect deal perception51:11  Improving client experience and reducing anxiety52:59  Understanding client “pain tolerance.”54:24  Closing thoughts and invitation for listener feedback

Thrown under the bus and dragged (with Eric Houseman)

To watch a video version of this podcast, click here: https://youtu.be/c9hch5yyc-UIn this episode, Reuben Saltzman and Tessa Murry are joined by Structure Tech’s Services Manager, Eric Houseman, for a wild home‑inspection story that starts with a simple missing bath‑fan termination and snowballs into a major discovery. What begins as routine training turns into a dramatic game of telephone between inspectors, agents, sellers, and contractors—and ends with one of the most shocking ventilation mistakes the team has ever seen: a bathroom exhaust fan tied directly into a power‑vent water heater exhaust.Along the way, the trio talked about communication pitfalls, the importance of clear reporting, the routine inspection steps that prevent safety issues, and the unexpected discoveries that even seasoned inspectors don’t see coming. It's an episode filled with lessons, surprises, and plenty of inspector banter.Here's the link to Inspector Empire Builder: https://www.iebcoaching.com/eventsCheck out this link to our new favorite Combustible Gas Detector, the TPI 720b:https://amzn.to/3NgZtv7TakeawaysClear communication during inspections is essential—verbal explanations can easily be distorted.Always wait for the published report, which is the most accurate representation of the findings.Words matter: “exhaust gas leak” is not the same as “gas leak.”Inspectors should avoid paraphrasing defects; copy the exact language from the report when relaying information.Even “routine” findings require careful verification—small details prevent major hazards.A bath fan must exhaust to the exterior, and improper venting can create serious safety risks.Creativity in home projects isn't always a good thing—especially when it involves exhaust systems and combustion appliances.When something seems off, dig deeper; sometimes the truth is hidden behind drywall.A well‑written report, complete with photos and precise language, is a home inspector’s best protection.Even experienced inspectors learn new things—sometimes in the most unexpected ways.Chapters00:00  Introduction and Minnesota’s heavy current events01:07  Shifting to lighter topics and home‑inspection talk02:35  Combustible gas detectors: retiring the TIFF 890005:00  The new winner: TPI 270B07:21  Show sponsor shout‑out: IEB08:35  Reuben’s reverse osmosis saga (and user error)11:35  Tessa’s stinky well‑water updates13:31  Introduction to Eric’s “thrown under the bus” story14:25  The inspection setup and counting exhaust points16:45  The missing basement bath‑fan termination18:14  The telephone game between clients, agents, and sellers19:37  HVAC contractor conflicts with the findings20:55  Re‑inspection and detective work22:17  The shocking discovery: bath fan tied into water‑heater exhaust23:59  Why this is dangerous: carbon monoxide risk25:11  No apology, but valuable lessons27:33  How communication gaps amplify issues28:44  Importance of clear reporting and avoiding paraphrasing30:33  Wrapping the episode; preview of next topic31:48  Closing remarks