Home performance articles and stories from the field with internationally respected building forensics guru Corbett Lunsford at the Building Performance Workshop. Hear new episodes of the Building Performance Podcast, see new videos from the Home Performance YouTube channel, and learn all about how diagnostic testing (more than an 'Energy Audit') can make home improvement and new home construction a proven process!
Filtering by Tag: retrofit
I'd love to show you this, but my client has asked that I take this video down while they try to reconcile with the installer. Fingers crossed everybody, and sorry to be a tease.
Corbett traveled from Atlanta to Orlando to help Matt Moreman of Obsessed Garage get all the spec's on his 4000 sq. ft. house. See the blower door setup, 3D modeling, kitchen exhaust hood pressure testing, and inspection of the home's exterior and attic in preparation for the Vitals Checkup package:
Next, we run the blower door depressurization and pressurization tests, and the beginnings of infrared thermography and zonal pressure testing across the house:
We continue going beyond the traditional 'energy audit' performance testing to create a prioritized map of home improvements to control comfort, moisture, air quality, energy efficiency and durability:
Time for home improvement conclusions and recommendations for Matt's family, including air sealing, duct sealing, and equalization of heat flow in rooms of the house:
As Matt plans for his future headquarters for Obsessed Garage, Corbett starts the energy consulting process for controlling all the invisible dynamics of the building: heat bleed, airflow and pressure, moisture, and air quality:
I have been listening to your podcast and heard your request for ideas. You often mention the challenges in educating consumers, and I think my questions might be interesting to the non-professionals in your audience.
I just moved to Denver, Colorado and am considering purchasing a home for the first time. As a potential first-time homebuyer interested in air quality, moisture management, energy efficiency, and building durability, I expect that it is unlikely that I will be able to find a high-performing home at an entry-level price. With the expectation that I may need to invest in some retrofitting, I have a couple of general building performance questions:
Ascertaining current performance
Assuming that a first-time buyer probably will not have access to the sophisticated diagnostics described on your podcast during their search, what are some key things to look for that would indicate a high or low performance?
Utility bills can shed some light on energy efficiency, but how can someone gauge issues like air quality or moisture control?
Performance improvement opportunities
What factors influence a residential building’s suitability for a high-performance retrofit?
Are there factors that would influence the ROI of a retrofit for a modest home? And how could a homebuyer identify those?
Assembling a team
Do you have suggestions about how to assemble your team (realtors, inspectors, and appraisers) to help identify an entry-level home based on current or future potential?
What skills or expertise would you consider important?
Your podcasts have covered issues about financing for retrofits – so there may be nothing new to address here.
Basically, it would be great to be able to use a home performance lens during a home search to identify a property in which it is not too difficult or expensive to improve from decent to good performance.
As a potential consumer, I have enjoyed and learned a lot from your podcast. Thank you for thoughts.
I thought I would send this your way. I live in the Central Valley of California. Yesterday it reached 106 degrees. I did an experiment with my house. My 1,883 sq./ft. house had a deep energy upgrade over three years ago. The heating and cooling unit is a 2 stage/2 ton heat pump with no back-up heat. The second stage of cooling is disconnected so I am cooling with 1.4 tons. That is one ton for every 1,345 sq./ft.
Yesterday morning I left the house at 7:40 am. It was 75 degrees in the house and 75 degrees outside. I closed all of the blinds, turned the HRV off and turned the Heat Pump off. In other words, I let the house float. It got up to 106 degrees in Stockton yesterday. Luci my bride got home at 5:40 in the afternoon and the house was 78 degrees. She turned the thermostat back on and it brought the temp back to 75 in 30 minutes.
This stuff really works.
Keep up the GREAT work;
You are awesome. I'm not sure I know many other home performance experts who have fixed their own homes- most of our families have to suffer at home while we help other people get comfortable. Thanks so much for sharing the good word!
PODCAST #62 PERFECTION IS PURCHASABLE: Gavin Healy Can and Does Deliver Performance (and so can you)
Today Corbett talks with Gavin Healy of Balance Point Home Performance about walking the walk- modifying off-the-shelf HVAC and retrofit products to deliver proof that his clients got what they paid for. Tons of people talking big about this, but you will find only a handful competent enough to actually do it in real life. Evidence of Balance Point's delivery: their zero-dollar marketing budget. This special episode is from the 2014 Fall Fast Track- learn more at HomePerformance.training