Addison Homes, a green builder in Greenville, South Carolina, certainly didn’t set out to cause trade partners to grumble, murmur or gripe. They set out to build DOE certified Zero Energy Ready Homes (ZERH) to provide their customers with the energy savings, comfort and indoor air quality such homes deliver. To do that, Addison Homes had to get local trades on board by doing things a bit differently. In doing so, they provided award-winning homes that customers rave about. They even show off the energy-efficient features included in the home (the homeowners in their winning Cobbler Lane project show their guests the pristine conditioned crawlspace…seriously).
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Posts Categorized: Insulation
Lab Test vs. Eye Test: Slumping and Settling
Over the years, there has been significant discussion about batt insulation slumping and loose fill insulation settling. Manufacturers often discount these claims as inaccurate or the result of rumors spread by competitors. They do this because they have test data they believe proves these defects are not real issues. But the perspective of builders, HERS raters, insulation contractors and other boots on the ground is driven by what they see in the field, and that includes settled loose fill and slumped batts. How do we reconcile the lab test with the eye test?
Details »How “Total Cost” Sales Techniques Can Mislead
We’ve all seen the technique; it is very common in the building industry. A product manufacturer shows how their product can reduce or eliminate the need for other associated products, typically those that comprise some building system. The approach gets customers to think about costs holistically versus piecemeal. This happens in many industries, but given the complexity and systems-design nature of home construction it is very common in the building industry. The problem is that when multiple new assumptions are introduced into cost analyses you really need to look at the fine print to understand if all the assumptions are legitimate.
Details »Wall Assembly Including Fiber Glass Insulation Proves Peak Performer in New Study
A new study from Re:Vision Architects draws attention to a common flaw in research of products for the build environment: materials research and product selection typically focus on single-product performance, when very few building assemblies are composed of single products, but rather a combination of products. This simplistic approach led researchers Christopher Lee and Nicole Campion to look instead at the performance of wall assemblies, versus single products. Their study considered five wall assemblies and the results showed that and double stud wall using fiber glass insulation was among the top performing assemblies.
Details »“The Plate Escape”: where you’re leaking the most air
In the 1963 film “The Great Escape”, we were rooting for McQueen, Bronson, Attenborough and crew to safely escape the Nazi prison camp. When it comes to air fleeing our homes, our hope is exactly the opposite. Codes and customers are pushing for more energy efficient homes, and that means tighter envelopes. Tighter homes have significant impacts on both moisture management and air quality, but at a more basic level, they are just plain hard to build. A tight home is a result of successfully combining People, Practices and Products (our 3 Ps of air sealing) to deliver the desired result. Executing requires diligence from multiple subs, at many stages of a build, typically employing multiple products, both air barrier materials and sealing accessories. This complexity begs the question: how do I prioritize my focus (and my money) to attack the biggest problems first?
Details »Why Insulation is Crucial for Moisture Management
Moisture is one of the most damaging elements a building can encounter and is the leading cause of construction litigation. In a recent post for Professional Builder Magazine, Johns Mansville Principal Building Scientist J.R. Babineau talks about the role insulation plays in managing moisture in a wall system and why the issue is becoming increasingly important as energy codes become more stringent.
Details »Insulation Installation: You Don’t Get What You Expect, You Get What You Inspect
One of the things that impressed me most as a first-time attendee of the RESNET conference in March of this year was the caliber of the speakers – they all seemed knowledgeable, credible and more often than not, entertaining. I’m a big fan of soundbites, and I usually leave a meeting with a few good ones that I think capture the essence of those subjects most applicable to me. A good one from this year’s conference: “You don’t get what you expect, you get what you inspect.” This is a good message generally, but this really resonated with me when it comes to installation of insulation.
Details »There’s Insulating a Building. And Then There’s REALLY Insulating a Building.
For an insulation inspection during a building inspection, our handy guide – “25 Checkpoints for Inspecting Insulation Jobs” – covers all the bases, and then some. Intended to provide useful guidance on how to improve the quality of the installation of insulation products, the List has been created by our experts here at the Insulation Institute. It tells you what to look for when inspecting insulation in wall areas, as well as ceilings, floors and other areas.
Details »A breeze. A draft. A blast. A wind. A whiff. Who knew air could take so many forms in a building?
No matter what you call it, air flow and its management are vital to the performance, energy efficiency and comfort of a new or renovated home. Not only that: improper air flow can have severe effects on the health and safety of the people in the building by promoting mold growth, spreading pollutants, and possibly creating backdrafting of combustion appliances, increasing the possibility of carbon dioxide poisoning.
Details »Are Insulation R-Values a Good Measure of Insulation Performance?
Yes. The answer is simple, so this could be the shortest blog ever. However, given the misinformation that is out there it is worth explaining why R-value is in fact a good measure of thermal performance and dispelling some common misconceptions about it.
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