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...

No matter your building challenge, fiberglass and mineral wool will meet the job's demands. Fiberglass

and mineral wool insulation make up 72% of the insulation material in new homes for a reason.[1] Both products are highly cost-effective selections to meet desired labeled thermal performance.

NAIMA just released a new factsheet summarizing the industry’s use of recycled materials in 2019 and 2020. Over the two-year period, U.S. and Canadian insulation manufacturers used 4.1 billion pounds of recycled glass and 1.33 million pounds of recycled slag in the production of thermal and acoustical insulation.

This week, Residential Energy Services Network (RESNET) reported that 313,153 homes received a Home Energy Rating System (HERS) Score in 2021. The number of HERS homes continues to break records, having eclipsed the 299,775 in 2020. More than 3 million homes have been rated since the inception in 1995 of HERS scores, which are a home’s equivalent...

According to a report issued by the National Oceanic and Atmospheric Administration (NOAA) this week, 2021 was the sixth warmest year on record.[1] Further, the hottest decade ever recorded occurred between 2009 and 2019.[2] The planet’s warming trend is forcing home builders globally to get creative to address the challenges we’re confronting....

As the year winds down, we’re looking back at our most popular blog posts this year. If you’ve missed any of them, perhaps the end of 2021 will provide time to catch up!

New researchreleased this week from the American Council for an Energy-Efficient Economy (ACEEE) shows that deep home energy retrofits could halve homes’ energy use and emissions.  

The North American Insulation Manufacturers Association (“NAIMA”) is the association for North American manufacturers of fiber glass and mineral wool insulation (including rock wool and rock and slag wool) products. NAIMA’s role is to promote energy efficiency and environmental preservation through the use of fiber glass, rock wool, and slag wool...

Did you know that 40 percent of U.S. homes have at least one health or safety hazard? In fact, 35 million U.S. homes place their occupants at risk for health hazards, according to the National Center for Healthy Housing.[1] These homes have a range of problems, from mold and air leaks to toxic chemicals. Some states fare better than others. As...

E2 has published new, interesting data on clean energy jobs by congressional districts. Clean energy employment[1] (jobs in renewable energy and energy efficiency) accounts for 3 million U.S. jobs, and the sector will likely grow following the passage of the massive infrastructure bill. E2’s searchable database allows users a closer look at where...