When shopping for energy-efficient windows or designing a building enclosure, one term appears repeatedly on product labels and specification sheets: U-factor. Found in the upper left-hand corner of the familiar NFRC (National Fenestration Rating Council) sticker on most new windows sold in the United States, this number represents a critical metric for thermal performance. U-factor […]
Energy efficiency has become a defining priority for building professionals across the residential and commercial sectors. The data is clear: without smarter energy use, harmful carbon emissions would be 60 percent higher than they are today, and energy use per household has fallen roughly 16 percent between 2005 and 2018. For architects, contractors, and developers,
For years, rigid foam and spray polyurethane foam have dominated the conversation around foundation insulation. Builders in cold climates have reached for XPS, polyisocyanurate, or closed-cell spray foam as the default solution for insulating basements, crawlspaces, and slab edges. But a growing number of professionals are asking whether there is a viable path to insulated
If you are new to the world of sustainable construction, the term green building can feel overwhelming. Yet the concept is simpler than most people realize. Green building means constructing homes that are energy efficient, durable, and healthy for the people who live in them. It also means using fewer materials and making better use
The connection between energy efficiency and sustainable building has never been more critical. As the building industry works to reduce its environmental footprint, energy efficiency remains the most cost-effective strategy for cutting energy waste in homes, workplaces, and commercial facilities. A comprehensive report from the Alliance to Save Energy, American Council for an Energy-Efficient Economy,
By now, most builders recognize that foundation insulation is essential in all but the warmest climates. Whether a project involves a basement, crawlspace, or slab-on-grade foundation, proper insulation plays a critical role in energy performance and occupant comfort. Conventional approaches typically rely on rigid foam boards or spray polyurethane foam. However, a growing number of
In the world of building materials, few stories are as dramatic as the rise, fall, and quiet resurgence of urea formaldehyde foam insulation (UFFI). Once vilified as a health hazard and banned in many jurisdictions, this insulation material — now marketed under names like amino foam, injection foam, and tripolymer foam — has never entirely
In early 2020, a major shift in federal energy policy took place when stricter energy requirements for new construction were removed from the American Energy Innovation Act as it moved through the U.S. Senate. The decision drew sharp criticism from environmental groups and energy efficiency advocates, who pointed to the National Association of Home Builders
Roof ventilation is one of those building science requirements that every modern home must address, yet it remains the subject of ongoing debate among designers and builders. The International Residential Code (IRC) mandates ventilation for most residential roof assemblies, prescribing a minimum ratio of net free vent area to the area of the vented space.
The years 2019 and 2020 brought a mixed picture for energy efficiency in home building. On one side, states and cities pushed forward with ambitious new codes and programs. On the other, federal rollbacks threatened to undo years of progress. For builders, architects, and homeowners alike, understanding these shifts is essential for making informed decisions
