Insulation Institute Blog

Posts Categorized: New Home Construction

2021 IECC Beats NGBS on Energy Performance

Analysis conducted by ICF consulting compared the home energy performance of the 2020 National Green Building Standard (NGBS), the first residential green building standard to undergo the full consensus process from the American National Standards Institute (ANSI), and the 2021 Residential International Energy Conservation Code (IECC). The analysis showed that the NGBS is not equivalent to the 2021 IECC except possibly at the Emerald level, and all homes at the Bronze, Silver, and Gold levels result in worse energy performance and higher energy costs than the 2021 IECC.

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State of the Nation’s Housing Report 2024

The Joint Center for Housing Studies (JCHS) at Harvard University recently released The State of the Nation’s Housing 2024 report. This year’s report details some significant challenges confronting the U.S. residential housing market. These include increasing housing costs, record cost burdens for homeowners and low for-sale inventory, which has prompted buyers to seek new construction homes, however unaffordable.

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State of the Nation’s Housing Report 2024

How 12 Standards Stack Up on Performance

A new report from Emu Passive, which specializes in Passive House training and consulting, looks at the ability of 12 building standards to deliver resilience, a healthy environment, and efficient buildings. The research examines how the various building standards perform based on the most common challenges for buildings. PHI Passive House performed the best among the standards considered, but more details on the performance of each standard emerge within this research.

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How 12 Standards Stack Up on Performance

The End of Home Sampling?

One of the dirty little secrets of modern home building is that some high-performance building programs allow home sampling or assigning all homes within a development the same performance characteristics or scoring as a reference home. The implementation of sampling was always challenging to monitor and assess. The implied promise for each home built to a specific high-performance certification target (i.e., HERS-rated, ENERGY STAR, Earth Craft, and others) is that it was inspected individually by a trained and certified energy performance professional. Of course, all homes, not just those built to the requirements of a home performance certification program, should be inspected. Still, these inspections are crucial to ensure quality and performance for buyers paying a performance premium.

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The End of Home Sampling?

Two Years Free Electricity for New Home Buyers

With affordability at the top of the list for home buyers today, shopping for a home that will be budget-friendly to purchase and own is a priority for most buyers. A new one-stop shopping platform for energy-efficient homes is looking to change how Americans buy homes by elevating energy efficiency in the purchase process. Furthermore, it’s giving buyers of energy-efficient homes up to two years of free electricity as an incentive to buy a home.

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Two Years Free Electricity for New Home Buyers

2021 IECC Mandate Proposed for FHA/USDA Mortgages

The White House today announced a proposal that new homes purchased using Federal Housing Administration (FHA) or U.S. Department of Agriculture (USDA) mortgages must be built to the standards of the 2021 International Energy Conservation Code (IECC). Current FHA/USDA mortgage standards require compliance with the 2009 IECC. This proposed standard update is a giant step forward in improving the energy performance of new residential construction in the United States. About 170,000 homes are purchased each year using these government mortgage products, which means 170,000 families will buying homes that are potentially 35 percent more important efficient than the status quo.

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2021 IECC Mandate Proposed for FHA/USDA Mortgages