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On this episode of The Build Show Podcast, Matt discusses the importance of ventilation with expert Corbett Lunsford, who you may know from his PBS Series Home Diagnosis. They explore the critical role ventilation plays in maintaining healthy indoor air quality and Corbett shares insights into designing effective HVAC systems.The conversation emphasizes the importance of air circulation, pollution capture, and filtration in residential buildings. They highlight the advantages of using Energy Recovery Ventilators (ERVs) over traditional ventilation methods, particularly in tightly built homes. Corbett explains how ERVs can improve air quality and balance humidity, making homes more comfortable and energy efficient.Matt shares his personal experience with different ventilation strategies. They discuss practical tips for installing and commissioning ERVs, emphasizing the need for proper ductwork and air balancing. Corbett advises builders to prioritize mechanical ventilation systems that go beyond basic bath fans to ensure whole-house air quality.The episode also touches on the importance of kitchen exhaust systems and makeup air solutions. Corbett recommends consulting tools like RedCalc for accurate ventilation design and encourages builders to stay informed through educational resources.Resources:RedCalc(Ventilation calculators): https://redcalc.comASHRAE Weather Data App: https://ashrae-medio.infoHome Diagnosis(PBS series): https://homediagnosis.tvFind Corbett on the Web:YouTube: https://www.youtube.com/user/HomePerformanceLinkedIn:https://www.linkedin.com/in/corbettlunsford/Website - https://buildingperformanceworkshop.comFind Matt and The Build Show on the web:Build Show Videos: https://buildshownetwork.com/go/mattrisingerInstagram: @risingerbuild and @thebuildshowTikTok: @thebuildshowYouTube channel: https://www.youtube.com/@buildshowWebsite: https://risingerbuild.com/ and https://buildshownetwork.com/Join us at Build Show LIVE this November 7-9 in Austin, TX. Click here to stay in the know. Don't miss a single episode of Build Show content. Sign up for our newsletter.
Today we talk with HVAC design legend Russ King (https://kwikmodel.com) about how to trim the fat out of heat load calculations in Manual J (and how you sometimes can't), along with fine points on duct design, grille selections, and a brand new movement in software to help homeowners perform their own load calculations (https://DIYloadcalcs.com). Hosted as always by Corbett Lunsford (https://BuildingPerformanceWorkshop.com). See the first-ever TV series about the Science of Homes at: https://HomeDiagnosis.tv
Building HVAC Science - Building Performance, Science, Health & Comfort
This episode started in 2018. I have had the notion for quite a while (since 2018) of the need for a responsible contractor network or RCN. This came up when my widowed sister that lives many states away was having trouble with her HVAC system in her home. She asked who I might recommend. I had no immediate answer. I created a few basic principles of conduct, process, and integrity for RCN. I even bought a domain and mentioned the idea a few times (at the HVAC School Symposium) and received some decent response. Then I fell into other rabbit holes. Fast forward to 2023 and I came across a list put forth by Corbett Lunsford: https://homediagnosis.tv/hvac-installers “The List is a voluntary, un-vetted directory of HVAC Installers across North America who will trust and follow, or even perform in-house, design calculations (Manual J, S, and D). These companies have self-selected, by affirming the following questions: I understand that the first step in proper HVAC design is a Manual J (or equivalent) load calculation, targeting the 99% hottest and coldest design temperatures the home will be exposed to I understand that in more airtight, insulated, and ventilated homes the load may prove to be between 1000-2500 sq ft per ton of cooling If I follow the software-based design correctly, I understand that it is not my problem if the home is not as airtight as the builder or client told me it would be, and a simple blower door test can prove that any performance issues are the enclosure's fault rather than my HVAC installations” Dang, he did it! Then I scrolled through the list (now 51 strong) and saw someone in Pittsburgh where I live! And that's how this episode all started. Oh, and Mat has a very interesting backstory that I think you will enjoy. Mat Stone Mat@home-mechanix.comwww.Home-Mechanix.com This episode was recorded in August 2023. PS we referred to Episode 21 with Ed Kisiel Super tight houses using standard construction.
Building HVAC Science - Building Performance, Science, Health & Comfort
In this episode, Bill chats with Kevin Hart, the founder of HAVEN, a start up that makes a unique IAQ sensor/control system. Hear from Kevin about his background as an electrical contractor and how he came up with the idea for Haven, as well as all the iterations the product has been through. In the episode he describes RDCV: Residential Demand Control Ventilation and why it is important for contractors and homeowners to understand details on this subject. Learn how a simple chemical compound that is found in most homes can convert to formaldehyde, a carcinogen. Haven Website: https://haveniaq.com/ Haven for sale at TruTech Tools: https://www.trutechtools.com/haven Haven 22 is the DISCOUNT CODE for this product: https://www.trutechtools.com/haven-central-air-monitor.html which is for Pros to use to get a product to install for customers or in their own homes. Kevin's LinkedIn: https://www.linkedin.com/in/kevinrhart/ Kevin's email: kevin@haveniaq.com Here's a link to Grace and Corbett Lunsford's HOMECHEM videos we mentioned: http://bit.ly/HOMEchem This episode was recorded in March 2023.
Corbett Lunsford of Home Diagnosis joins Kaleb to record a podcast about comfort investigation on TV. The two of them discuss how comfort investigation works on TV shows, what Home Diagnosis hopes to accomplish, and some building performance tips. Home Diagnosis is mostly aimed at homeowners, but HVAC technicians would also benefit from the show, as it dives into science and testing. The show promotes consumer education and contractor accountability. Diagnostics and testing are absolute MUSTS for providing the best possible solutions and transforming your business. You put yourself in another league when you take measurements and have the data to create tailored solutions. In other words, you can't manage what you can't measure, and if you're not testing, you're guessing. The current paradigm shift in the industry has to do with custom designs. Physics, chemistry, and microbiology are all important facets of applied science to consider when coming up with a custom solution. Many buildings have distinct microbiological profiles, including bakeries with yeast or cheese production or aging facilities. Natural events and human activity can change these buildings' microbiological profiles. Ventilation is part of the equation of home performance, and it's a pretty delicate one that HVAC techs can control. When it comes to ventilation, we would be wise to avoid selling products we don't understand. Ventilation solutions may also be appropriate for one structure but inappropriate for another, so we need to think about the applications of these solutions. Corbett and Kaleb also discuss: Comfort vs. efficiency vs. control ERVs vs. HRVs and humidity How the market influences custom solutions Preview of challenges in Season 3 of Home Diagnosis Microbiology of structures Learn more about Home Diagnosis at https://homediagnosis.tv/. If you have an iPhone, subscribe to the podcast HERE, and if you have an Android phone, subscribe HERE. Check out our handy calculators HERE.
I had a great conversation with Corbett who is juggling all things that his company Building Performance Workshop is doing. Performance Testing and home diagnostics, a home diagnostics book, training, podcast, TV show and YouTube Channel. All in an effort to help homeowners live their best life in the homes they have chosen. Corbett introduces himself on his website this way. “Hi. I am Corbett Lunsford, and sometimes I'm an idiot. I wasn't always a home performance expert – I used to play piano for ballerinas. For a living. So, in 2008, I started this career with Grace (my wife) and we learned a few things very quickly: construction is unbelievably messy, most pros are over-rushed and under-paid, and homeowners end up suffering in small ways, for their entire lives in the house. None of this has to be so we can opt out of the whole thing with performance testing.” Performance testing, gathering data in the home is the mission that Corbett has chosen as the backbone for his different platforms to educate industry and the public on what we should expect of our housing. Building Performance Workshop Home Diagnostics TV Series You Tube Channel Building Performance Podcast Home Performance diagnostics book Tiny House/Tiny Lab
The typical homeowner may believe that an energy-efficient home is a high-performing one, but that's actually not the case.According to Grace and Corbett Lunsford, the co-creators and hosts of TV show Home Diagnosis, energy efficiency is simply a byproduct of great home performance.In the second part of this Indoor Air Quality IQ podcast series, “What Most People Don't Know About Higher Performing-Homes,” they rejoin host Tyler Kern and show regular Nick Agopian of RenewAire to talk in greater depth about the role that energy efficiency and chemistry have in a healthy and high-performing home."High-performing homes have wonderful byproducts, and one of those byproducts is energy efficiency, but it's not the goal," Grace Lunsford said. "The ultimate, No. 1 thing is finding control and balance and tuning your home." The Lunsfords offered a simple, 1-2-3 look at the indoor chemistry and health of a home. No. 1 is chemicals, No. 2 is particles and No. 3 is microbes, all of which can have a negative effect on indoor air quality, particularly in combination with one another.To control those three aspects, homeowners can improve their indoor air quality with balanced ventilation via energy recovery (ERVs), dehumidification strategies, and powerful air filtration as potential ways to reduce those contaminants.In particular, ventilation is key for controlling those chemicals, particles and microbes. Installing an energy recovery ventilator can help to achieve this in a high-performing home.However, it's also important to remember that everything is about balance – instead of chasing one goal, like energy efficiency, chase a healthier home."People tend to think that if something's good, then more of that would be even better,” Corbett Lunsford said. “And, it turns out, because the home is a system, if you chase after energy efficiency … you are creating side effects." If you haven't listened to the first part of this podcast episode, make sure to do so to learn more about home performance. Additionally, don't forget to subscribe to the podcast on Apple Podcasts or Spotify for even more content on indoor air quality and the factors that impact it.
Making Houses Work: A Discussion with Corbett Lunsford, Co-Host of PBS’ Home DiagnosisCorbett Lunsford returns to the Healthy Indoors Show to talk about his work on a new smartly-designed/built home for his family, and the upcoming 2nd season of his PBS Television series, Home Diagnosis.
Physics and chemistry affect the interior of every home, every day. Performance testing can enable remodelers to predict and prevent health, safety, and comfort issues, earn more for your work, and predict and prevent callbacks, claims, and lawsuits. As a remodeler, you have two choices. You can test for and design performance controls into your... The post Ep.69: How to Protect and Grow your Business with Performance Testing with Corbett Lunsford appeared first on PowerTips Unscripted.
ALL NEW FORMAT! Corbett Lunsford is joined by his bride Grace- together they host Home Diagnosis, the first-ever TV series about building science and home performance testing. They answer questions of all kinds about the invisible dynamics of physics and chemistry in homes worldwide, and hope to hear from you for the next episode! To write in with a question or comment, visit: https://HomeDiagnosis.tv/questions To join Grace and Corbett in continuing the Home Diagnosis TV series, visit: http://Patreon.com/HomeDiagnosisTV
Corbett and his wife Grace created and co-host the first TV series about home performance, called Home Diagnosis, which airs on PBS stations nationwide. It features their TinyLab, which they designed and built (and still live in 3 years later) to teach homeowners about the invisible dynamics of physics and chemistry in homes of all sizes. The post High Performance Building for Tiny Homes with Corbett Lunsford – #050 appeared first on The Tiny House.
Topics - Home performance mods to old homes - Tools for home performance - 5 items you should not have in your home - Best crawlspace?
Corbett Lunsford, wasn't a home performance expert- he used to play piano for ballerinas. In 2008, he learned a few things very quickly: construction is unbelievably messy, most pros are over-rushed and under-paid, and homeowners end up suffering in small ways, for their entire lives in a house. None of this has to be so- we can opt out of the whole thing with performance testing. His goal is to package building performance so it can easily be understood and used by professionals and consumers alike, for better buildings worldwide. In 2009, he started teaching pros through the Building Performance Workshop and he has hosted over 300 YouTube videos and 80 interviews for the Building Performance Podcast. He also wrote the book Home Performance Diagnostics: the Guide to Advanced Testing, and developed the APT Reports software tool. In 2016 he and his wife Grace built the world's highest performance tiny house on wheels, the #TinyLab, and toured the US before settling down in Atlanta, Georgia. Along the way, they created the first TV series about home performance, Home Diagnosis, which airs on public TV across the U.S. Corbett, Grace, and their new baby went on a 13,000 mile, 34-city U.S. Tour from April 2016-January 2017 in the world's highest performance tiny house on wheels, the #TinyLab. Their mission was simple: to revolutionize the home market by teaching consumers and contractors alike to use scientific testing to prove the work gets done to quality standards. Each city on the Proof Is Possible Tour was sponsored by a local company that shared the passion for empowering homeowners and changing the game. Along the way certain cities shared in filming of the couple's TV show Home Diagnosis. They invited over 7,000 strangers into their home on the tour, and now live in Atlanta, Georgia.
Corbett Lunsford, wasn't a home performance expert- he used to play piano for ballerinas. In 2008, he learned a few things very quickly: construction is unbelievably messy, most pros are over-rushed and under-paid, and homeowners end up suffering in small ways, for their entire lives in a house. None of this has to be so- we can opt out of the whole thing with performance testing. His goal is to package building performance so it can easily be understood and used by professionals and consumers alike, for better buildings worldwide. In 2009, he started teaching pros through the Building Performance Workshop and he has hosted over 300 YouTube videos and 80 interviews for the Building Performance Podcast. He also wrote the book Home Performance Diagnostics: the Guide to Advanced Testing, and developed the APT Reports software tool. In 2016 he and his wife Grace built the world's highest performance tiny house on wheels, the #TinyLab, and toured the US before settling down in Atlanta, Georgia. Along the way, they created the first TV series about home performance, Home Diagnosis, which airs on public TV across the U.S. Corbett, Grace, and their new baby went on a 13,000 mile, 34-city U.S. Tour from April 2016-January 2017 in the world's highest performance tiny house on wheels, the #TinyLab. Their mission was simple: to revolutionize the home market by teaching consumers and contractors alike to use scientific testing to prove the work gets done to quality standards. Each city on the Proof Is Possible Tour was sponsored by a local company that shared the passion for empowering homeowners and changing the game. Along the way certain cities shared in filming of the couple's TV show Home Diagnosis. They invited over 7,000 strangers into their home on the tour, and now live in Atlanta, Georgia.
Building HVAC Science - Building Performance, Science, Health & Comfort
You’ll note no last names in this episode title, as I know Grace & Corbett so well. And I think you need to know them better, too. Grace McPhillips Lunsford and Corbett Lunsford have embarked on a road to change the culture of how home performance is perceived by homeowners and galvanize them into action. A major section of this road opens in January 2019, where their TV Show, Home Diagnostics launches on PBS. You can help spread the word on this topic by asking your local PBS station programmer to carry it. Learn more about this and see show clips (“the sizzle reel”) at www.HomeDiagnosis.tv We explore how the topic of home performance is so personal and how the human characteristics of curiosity and playing games (metrics) can transform the market where all can benefit. We also learn what a “tent pole” is and how it has not yet been erected in the field of home performance. Find out how these brave souls continue to walk the talk after their 32-city tour in a tiny lab and into the construction of their new high-performance home in the Atlanta area. Listen as we gain insight into how their technical minds work in a musical fashion: how melody, harmony and timing are analogous to the relationships between materials and systems in the home and the sequencing and consequences of the decisions made in choosing, using and install these systems. This is a really rich episode, so please listen closely! And I will have them back on the podcast. The hub for all their activities is found at www.buildingperformanceworkshop.com/
This week’s episode features an interview with Corbett Lunsford on the HOMEChem experiments that were being conducted alongside the filming of a brand new, building science focused show called Home Diagnosis TV (be on the lookout for that). Of course, we're really excited about the potential of Indoor Air Quality education coming to the masses. It's the future fulcrum point of housing and health care. The HOMEChem experiment (House Observations of Microbial and Environmental Chemistry) took place in the month of June 2018, incorporating measurements from over 15 research groups from 9 universities to identify the most important aspects of the chemistry that controls the indoor environment. The HOMEChem field study is expected to kick-start and energize the Chemistry of Indoor Environments community of scientists, while also answering interesting preliminary science questions on the chemistry of indoor environments in a real-world experimental setting. This brings an excellent opportunity for outreach to the broader scientific community and other stakeholders, such as other funding agencies, the local and national media, and the public.Corbett Lunsford wasn't always a building forensics expert- he used to play piano for ballerinas (among many other things). Since 2008, he has been educating and advocating for better performance testing in construction.Among his goals are to package building performance so it can easily be understood and used by professionals and consumers alike, for better buildings worldwide. Corbett believes that homeowners are not just aiming for efficiency or sustainability, but that we really want what all homeowners aim for: living in a better home, and getting a better life.Since 2009, Corbett has put on his Building Performance Workshop, and has hosted over 300 YouTube videos and 80 interviews for the Building Performance Podcast. He wrote the book Home Performance Diagnostics: the Guide to Advanced Testing, and developed the APT Reports software tool.In 2016 he and his wife, Grace, built the world's highest performance tiny house on wheels, the #TinyLab, and toured the US before settling down in Atlanta, Georgia.Of course, they’ve performed hundreds of comprehensive home performance tests and building investigations, keynoted for events including InfraMation, Habitat for Humanity Michigan, the Thermal Imaging Conference, the EPA, IR Info, etc, and presented courses in partnership with National Healthy Homes, Air Conditioning Contractors of America, the RESNET and Affordable Comfort (ACI) Conferences.Home Diagnosis TVWe're excited to share and help promote a brand new show that will air on PBS in 2019 called Home Diagnosis TV. Our friend and colleague, Corbett Lunsford, and his wife Grace have been working tirelessly the last few years to make this project a reality and we are so proud of the result. You may have seen Corbett & Grace before on their Proof Is Possible U.S. tour. You'll be seeing a lot more from us about this show as it launches.Here's the description from the Home Diagnosis TV website:“Home Performance Experts Grace and Corbett Lunsford created this 6-episode 30-minute series coming to your television in 2019! Shot in cities across the U.S. as part of the Proof Is Possible Tour, the show follows Corbett and Grace as they solve mystery problems of all types in homes new and old. Presented by Georgia Public Broadcasting with post-production by ECG Productions.”SixClasses.orgMany of the products we use every day contain chemicals of concern that may be harming our health. Many of these substances can be grouped into “Six Classes”, each containing similar chemicals. The Six Classes approach allows us to better understand these chemicals, their functions, where they are used, and how they can be avoided. It can prevent a cycle of “regrettable substitution,” whereby a phased out harmful chemical is replaced with a closely related chemical which may cause similar harm.The Sloan FoundationFounded in 1934 by industrialist Alfred P. Sloan Jr., the Foundation is a not-for-profit grantmaking institution that supports high quality, impartial scientific research; fosters a robust, diverse scientific workforce; strengthens public understanding and engagement with science; and promotes the health of the institutions of scientific endeavor.
I talk with Corbett Lunsford about his new show about home diagnosis on PBS coming this Winter
In this episode of HVAC Shop Talk Ralph and Zack continue their talk with home performance leader Corbett Lunsford. In the opening Zack and Ralph discuss business, including what led Zack into opening his business.
In this episode of HVAC Shop Talk Zack and Ralph talk to Corbett Lunsford. Corbett is a leader in the home performance field. He talks about how he became a noted figure in his field, the tiny lab project and much more in part 1 of this series.
Corbett Lunsford from the Building Performance Workshop and the Proof is Possible tour talks to us about the moral superiority of building performance testing, blower door testing and much more.
Today Corbett takes you on a tour of performance based building from a sampling of builders around the world, and realizes that the millionaires are going to be very angry when they realize what they're paying for isn't nearly as good as the affordable housing to be had on the other side of the tracks. Hosted by Corbett Lunsford at the International Builders Show (IBS) in Las Vegas and the Michigan Habitat for Humanity HOMES Summit, January 2015. Thanks to Robert & Deb Berger, Hiroshi Kuratsu, Rick Eversold, William Wright, Dustin Johnston, Scott Spencer, Bob Passkey Sr., Joey Cuzano, and Bruce Rumsberg for voicing their opinions about performance testing!
Today Corbett talks with Carl Seville, aka The Green Curmudgeon, about the unsolved problems of green product lobbies, utility energy efficiency programs, value engineering, and people's screwed up notions about what's important in buildings. Hosted by Corbett Lunsford of Green Dream Group, and sponsored by the bible for testing homes.
Today we talk with Colin Genge, founder and CEO of Retrotec, about the history of air leakage testing, how the tests really work (and what they doesn't actually test), and using home performance diagnostics for playing competitive poker. Hosted by Corbett Lunsford of Green Dream Group in Chicago.
Showcast Episode 43: Big Hollywood movies like "Sabotage" and "Noah" get thoroughly previewed, then talk switches to indie films with guests Grace McPhillips & Corbett Lunsford, makers of "The Other One". Plus, a Schwarzenegger-themed edition of "That's Right!" and a fond farewell to The Admiral's Club's cleaning lady. The Movie Guys are Paul Preston, Karen Volpe, Adam Witt & Lee KiasLike good movie talk? Please subscribe!www.themovieguys.net@TheMovieGuyswww.youtube.com/user/TheMovieGuysOnline
Today we talk with guru Gord Cooke of Building Knowledge and EEBA about how to get super-duper rich doing a fantastic job at building, retrofitting, and selling home performance. "When I grow up, I want to be Gord Cooke." -Corbett Lunsford, Host