It’s difficult to determine how much air is entering a house through walls that are built, not only for shelter and support but also to prevent airflow as an energy conservation measure. However, several ASTM tests are available to accurately measure airflow through common walls to aid in determining problem areas and finding ways to abate unwanted airflow.
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The infectious disease and HVAC engineering communities have been grappling with the complexities of COVID-19 transmission for the past nine months. Increased HVAC fresh air has the potential to dilute and remove the aerosol droplet particles of COVID-19 that many experts believe is one of the main sources of transmission. Now the building science community is starting to contribute to the discussion. Insulation Institute talks this week with Paul Grahovac, LEED AP, about the ventilation solution to COVID-19.
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Sealing common air leakage pathways is key to achieving a tight thermal envelope. Often, hidden holes in new construction homes can make achieving an airtight envelope very difficult. Knowing where these hidden holes tend to occur can help builders avoid a massive air leakage issue. Our 10 Hidden Air Leaks in New Construction Homes guide covers the most common areas where these holes occur and offers solutions to fix the holes during the construction process.
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Like last year, some of our best-performing blog posts focused on air sealing and proper installation and application of fiberglass and mineral wool insulation, which is no surprise, since we’re the Insulation Institute. However, other topics like energy efficiency design trends and the prioritization of energy efficiency over energy generation ranked highly as well.
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For the second time in three years, North Carolina Builder Shawn Jessup has won a U.S. Department of Energy (DOE) Housing Innovation Award. While Jessup’s scale may be small, at two to three builds per year, he is in high demand. S.D. Jessup Construction fields constant requests from potential customers in Raleigh, NC and other areas more than two hours away from their Pilot Mountain, NC base. Insulation Institute reached out to Jessup to get the scoop on his formula for constructing award-winning homes.
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We’ve seen hundreds, if not thousands of photos of fiberglass insulation jobs here at NAIMA, some good, some not so good…and some superb. When we came across Yudah Schwartz’s post on LinkedIn, it immediately caught our attention because we recognized an exceptional batt insulation job. The precision shown in installing the batts properly was clearly visible in the photos. So, we wanted to know more. He recently shared his views on the three essentials to getting visibly great insulation jobs.
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One of the best ways to keep informed of building industry trends and learn insights from industry experts is reading blogs and publications. However, sometimes, these sources can leave readers confused about the fundamentals of building science, the performance of building products, and ultimately, share misleading information. Frequently, writers conflate the role of insulation and air sealing, so it’s important to examine the difference.
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When newer editions of the International Energy Conservation Code (IECC) are introduced in states, often there’s a learning curve for home builders, especially when it comes to verification of a home’s air tightness with a blower door test. Some builders are having a tough go of meeting the new requirements. Increasingly, they’re relying on energy efficiency professionals, like HERS raters to help them achieve the target. Insulation Institute spoke with Jonathan Lang, Manager of Training & Certifications for Knauf Insulation who is a BPI Certified Building Analyst, Building Performance Specialist, and ICC Residential Energy Inspector (whew!). We spoke about the challenges builders face in meeting air tightness requirements and why communication and education are so critical to meeting the targets.
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Fixr.com recently published its 2019 Energy-Efficient Home Design Trends Report. The study’s authors interviewed 25 experts in the home design industry to peg upcoming trends in energy-efficient home features, design, and building trends. These experts have a pulse on what consumers want in design but are also savvy about energy efficiency and its importance to home buyers.
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Matt Whitbeck, Co-Owner and President of Whitbeck Construction, LLC specializes in custom framing, exterior sustainability, and residential remodeling. He’s serious about quality craftsmanship and energy efficiency. So much so that he is a popular speaker at building industry conferences on those topics. Whitbeck and Kevin Ireton spoke to a standing room only crowd in the High-Performance Building Zone at NAHB’ International Builders Show (IBS). Whitbeck also took time following IBS to speak with Insulation Institute on three tips for framing carpenters as they work to help builders achieve more energy-efficient homes.
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