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…. at Fulton and his steamboatHershey and his chocolate bar….OK, this is one of my all-time favorite songs.  George and Ira Gershwin.  Performed for the first time by Ginger Rogers.  But everyone… Read More

General Limit States Design, Hygrothermal AnalysisAt a basic level a wall is an environmental separator.  It keeps the outside out and the inside in.  Easy to say, not always easy to do.To function… Read More

There.  I said it.  It just does not work.  OK, it works sometimes1.  But it does not work in tight building enclosures and certainly not in new houses, apartments, townhouses and row houses. … Read More

* Credit to architect Edward Mazria: I think he said this first, if he didn't say it first he sure says it well.Many “green” buildings don’t save energy (see “MIS-LEED-ING” sidebar). Why? They have… Read More

Buildings today are hollow and multilayered with numerous air gaps or void spaces. Chases, shafts, soffits and drops abound. Everything is connected to everything else, typically unintentionally.… Read More

The energy used in institutional, commercial, and industrial buildings in cold climates (zone 4 and above) is substantial. Most of this energy is used after construction is complete; hence, reducing… Read More

The American Foursquare, a Sears, Roebuck & Co. kit home, was a staple of small American towns between 1908 and 1940. More than 100,000 of them were built in America. Homes built prior to 1980… Read More

This digest reviews the moisture control principles that must be followed for a successful insulated retrofit of a solid load-bearing masonry wall. Two possible approaches to retrofitting such walls… Read More

We learn our lessons from disaster. Hurricane Andrew taught us about wind. Hurricanes Charley, Frances and Jeanne taught us about rain. The Red River of the North Basin taught us about floods.… Read More

Are multifamily buildings one building or a bunch of individual buildings sharing the same structure? Should services and systems be shared or individual? The passions regarding these questions are… Read More