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This has nothing to do with a pony or Nebraska1.In general there are two main types of fire issues: fires emanating from the interior of a building and fires emanating from the exterior of a building… Read More
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Yes, we have done unvented conditioned attics before….but mostly with spray foam and rigid foam insulations. But we do not have to use spray foam and rigid foam insulations. You can use almost… Read More
Very Cold, Cold, Mixed-Humid, Marine, Hot-Humid, Hot-Dry/Mixed-Dry
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We looked at exterior spray foam previously (BSI-048: “Exterior Spray Foam”, April 2011). Exterior spray foam typically is used in commercial applications. Most residential applications use interior… Read More
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Remember the good old days when we had filters right at the single central return that we could easily change (Photograph 1). We didn’t have to go to the furnace or the air conditioner. The filter… Read More
Mixed-Humid, Marine, Hot-Humid
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“Code world” is an interesting place where seemingly convoluted language is used to express simple concepts in clearly complicated ways. The reasons for this are based on “legal” principles and the… Read More
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Sometimes the obvious is not so obvious. And sometimes the not so obvious becomes obvious. For example installing leaky ductwork1 in a vented attic is a pretty dumb idea (Figure 1). It leads to… Read More
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For all that we know about roofs–which is a great deal–sometimes things can get confusing. I am more than partly to blame for that. I wrote a lot of the code language dealing with both vented and… Read More
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“What we’ve got here is failure to communicate . . .”1In what is turning out to be an unfortunate turn of phrase the terms “unvented attics” and “unvented roofs” have entered the lexicon. A lot of… Read More
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If you take rocks and melt them and blow air through them you get fluffy rocks. And fluffy rocks don’t burn. If you take gypsum and make it into sheets you get “sheet rock”. And guess what? Rocks don… Read More
Very Cold, Cold
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Seventeen years ago we bought an old house—a fixer upper—over a hundred years old—in Westford, MA. I was going to make sure it would end up energy efficient. Did the rubble foundation thing well—very… Read More
Cold
Pagination
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