Insulation Institute Blog

Posts Categorized: Insulation

Trading Off Thermal Resistance is a Very, Very Bad Idea

If you’ve been following our blog for some time now, you know that we write regularly about basic building science. In fact, we completed a primer, Building Science 101 with Building Scientist Allison Bailes a few years back. Dr. Bailes, a Georgia resident, recently wrote the state’s Department of Community Affairs to object to a proposal that would allow as little as R-20 spray polyurethane foam (SPF) insulation to be used on the underside of the roof deck in new homes built in the state when R-38 is required. You may ask why R-20 SPF at a blower door rating of 3ACH 50 was proffered as a substitute for R-38 and 5ACH 50. So did Bailes.

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Trading Off Thermal Resistance is a Very, Very Bad Idea

Beauty and the Batts

Fiberglass batts are commonly used to insulate flat ceilings and attic areas in both new and existing buildings. They offer performance, cost-effectiveness, and relative ease of installation, but that doesn’t mean they’re always installed properly. The performance of any insulation product is dependent not only on selecting the proper product but also on installing it correctly. So, how does one install batts in flat ceilings to maximize thermal performance?

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Beauty and the Batts

New Report Shows Acoustic Performance

NAIMA has released a new report that documents the acoustical performance of residential wall cavity insulation products. The report is based on research conducted by Intertek Labs that tested seven wall assemblies with variations in cavity insulation products, including fiberglass, mineral wool, open cell spray foam, closed cell spray foam, and flash and batt applications with spray foam and fiberglass insulation.

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New Report Shows Acoustic Performance

Does My Insulation Settle or Expire?

NAIMA/Insulation Institute frequently fields questions regarding various performance aspects of fiberglass and mineral wool insulation. One of the most common questions we receive is, “what is the typical lifespan of fiberglass and mineral wool insulation?” Other questions come up regarding settling and loose fill insulation. We know there are many misconceptions about fiberglass and mineral wool insulation products’ performance and longevity, so pointing out research that can help dispel myths is often necessary.

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Does My Insulation Settle or Expire?

An Insulating Challenge: Scissor Trusses and Sloped Ceilings

Architect Terry Smith of TDSA Architecture in Washington state recently contacted NAIMA with a question about how to properly insulate various types of roof trusses – both conventional and scissor type. Terry rightly pointed out that insulation is intended to be most effective when uniformly applied or layered to cover the full extent of the space being insulated. But there are instances, such as narrow areas near the top plate of scissor trusses and sloped ceilings, where that is not possible.

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An Insulating Challenge: Scissor Trusses and Sloped Ceilings

Insulation Contributes $36B in Payrolls to the Economy

A newly released study of the insulation industry’s economic contributions to the U.S. economy in 2019 details more than 564,000 jobs generated and $36 billion in payrolls that supported families and communities around the country. Those jobs in the manufacturing, distribution, and installation of insulation will be a critical component of the nation’s continued economic recovery in the wake of the COVID-19 pandemic, according to the study’s sponsor, the American Chemistry Council (ACC).

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Insulation Contributes $36B in Payrolls to the Economy

The Benefits of Insulating Interior Walls

Noise levels are one of the top concerns for home shoppers today, according to Realtor.com. While insulation is one of the best ways to reduce unwanted noise in new homes, building codes mostly require that exterior walls be insulated, and it’s not customary for the interior walls of homes to be insulated. Yet, there are compelling advantages for doing so, as anyone who has ever occupied a room next to a bathroom can tell you. With homeowners spending more time indoors, the need for noise mitigation strategies like interior wall insulation is more evident than ever before. Here are two reasons to insulate interior walls.

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The Benefits of Insulating Interior Walls

October 7 is EEDay2020

Today marks the 5th Annual Energy Efficiency Day (#EEDay2020), established by advocate groups around the United States to highlight the benefits of energy efficiency (for a full list, see here). Hundreds of companies, organizations, utilities, and governments representing tens of millions of people will take part in #EEDay2020 by encouraging Americans to support energy efficiency efforts, which save money, cut pollution, create jobs, and much more. Among the most important activities to undertake to increase energy efficiency is to insulate. Here are three facts about insulation and energy efficiency:

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October 7 is EEDay2020

Rule Your Attic to Begin Sept. 14

The U.S. Environmental Protection Agency (EPA) Energy Star program is set to conduct its annual “Rule Your Attic” promotional campaign beginning next month. The campaign educates consumers about the importance of air sealing and insulation by encouraging homeowners to measure their attic insulation and add more if needed.

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Rule Your Attic to Begin Sept. 14