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Foam Free Wall Assembly By Climate Zone Guidelines by Climate Zone Spanning eight climate zones, from very hot and humid to subarctic, and desert to rainforest, North America presents widely varied demands on our building enclosures. Anecdotally, there is much written on assemblies in cold climates but not so about hot climates … read more

Resistance Is Not Futile: Laura Blau and a Legal Win for Passive House Levels of Insulation When Laura Blau had a fine art exhibition in Paris, in the early 1980s, at the American Center, it was requested that two pieces be taken down - the observer saying one looked like a “foetus” (in English: “fetus”), and another like “merde” (tha … read more

Introduction to Lamilux Skylights Efficient daylighting is fundamental to high-performance sustainable buildings, and nothing brings daylight into a space as effectively as a skylight. The challenge with skylights in a high-performance building is that roof glazing complicates the continuous air barrier that is crucial to minimizing t … read more

An Update On 475's Operations During The COVID-19 Outbreak: Open For Online Business Dear 475 customer, As we monitor and learn more about the impact of the novel coronavirus (COVID-19), our hearts go out to all who have been affected by the outbreak. We want to make you aware of a few important company updates effective immediatel … read more

Project Spotlight: Watch Reality TV Drama as Straw Panel Home Is Assembled In A Day Project Spotlight Location: Freehold, New York, USA Project type: Single-family new construction Panel Builders: EcoCocon Builders: Homeowner DIY, Peter & Ashley Jensen Assembly: Straw panel construction with Gutex continuous exterior insulation, … read more

Project Spotlight: Net-Zero, Gas-Free PA Prefab Home by EcoCraft Homes Bill Spohn has worked in the building performance industry for 30 years and is a majority owner of TruTech Tools, a distributor of blower doors, duct testers, infrared cameras, data loggers, and a TON of HVAC tools and instruments. In addition to running his blog, … read more