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Getting Continuous Exterior Insulation Right: Materials, Methods, and Wall Assembly Best Practices

Continuous exterior insulation (CEI) is increasingly recognized as a critical component of high-performance wall assemblies. Installed on the outside of structural sheathing and behind the cladding, CEI provides a thermal break that reduces heat loss through framing members, minimizes condensation risk within wall cavities, and improves overall building durability. The concept is straightforward, but execution […]

Understanding Refrigerants in HVAC Systems: Types, Environmental Impact, and Future Trends

Refrigerants are the lifeblood of modern heating, ventilation, and air conditioning (HVAC) systems, enabling the heat transfer that keeps our homes comfortable and our buildings operational. From residential air conditioners to large commercial chillers, these specialized fluids circulate through closed-loop systems, absorbing heat from indoor spaces and releasing it outdoors. As the building industry shifts

The Green Blocks Approach: Transforming Home Performance One Neighborhood at a Time

Home efficiency improvements have long been pursued on a house-by-house basis, with individual homeowners navigating assessments, contractor bids, and financing on their own. This fragmented approach often produces slow adoption rates and missed opportunities for economies of scale. The Green Blocks Project, a pilot program developed by the Environmental Outreach and Stewardship Alliance in Seattle,

Solar Thermal Systems: Efficiency, Applications, and Role in Modern Buildings

Solar thermal technology has long been a cornerstone of renewable energy for buildings, providing an efficient method for converting sunlight directly into usable heat. While the rapid decline in photovoltaic (PV) panel costs has led some to declare solar thermal obsolete, solar thermal systems continue to offer distinct advantages for water heating and space heating.

Air Pressure Physics in Buildings: Understanding the Forces That Drive Air Leakage

Air has weight. This simple fact is the foundation of one of the most dramatic physics demonstrations in building science: the ol’ beer can pressure crunch. A steel can, sturdy enough to hold pressurized beverages, can be crushed in seconds by manipulating the air pressure inside it. What makes this demonstration compelling for builders is

How Construction Professionals Can Harness Social Media Networking for Business Growth

Social media networking has transformed how businesses connect with customers, and the construction and home building industry is no exception. Platforms such as Facebook, Twitter, YouTube, and LinkedIn offer free tools that allow builders, contractors, and remodelers to showcase their work, share expertise, and engage directly with potential clients. The challenge lies not in whether

Block-by-Block Home Assessments: A Neighborhood Approach to Residential Energy Efficiency

Residential energy efficiency remains one of the most cost-effective strategies for reducing household utility expenses and lowering carbon emissions. While many homeowners recognize the value of upgrading insulation, sealing air leaks, and installing efficient appliances, taking the first step often proves challenging. In Seattle, the Environmental Outreach and Stewardship Alliance (EOS Alliance) launched the Green