- BSI
- NEWS
Flanged windows and foam plastic insulating sheathing.Sometimes I don’t get it. Why would anyone deliberately recommend a thermal bridge when it is completely unnecessary? The window industry must… Read More
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- NEWS
I did a bunch of wood foundations in the early 1980’s. Time of Blondie, Kim Carnes and the Police. I learned a great deal…some good…. some bad. The bad taught me a lot of things to avoid. At the… Read More
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You have got to love salesmen. They figure things out way before physicists, usually before engineers and certainly before greenie weenies. Harry Tschumi and Les Blades,1 a pair of salesmen from… Read More
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“gas separation processes and open cell low density spray foam”1Lots of attics insulated with open cell low density spray foam (Photograph 1, Photograph 2 and Photograph 3) are having problems – in… Read More
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So what do you do when you have an old building and the walls aren’t doing their job? What do you do when the walls look bad, leak and are falling apart? You give them a face-lift. We’ve been doing… Read More
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- NEWS
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
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Water causes enough trouble by itself, but when we add salt we go to a whole different level, especially where porous materials are concerned. What is the deal with porous materials? Simple, porous… Read More
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* 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
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For a bunch of supposedly clever folks we sure do dumb things. One of the big ideas of the past couple of decades or so is to keep the heat out during cooling and keep the heat in during heating. The… Read More
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Here is a pop quiz for you folks that are bored of Jeopardy. California is desert. Florida is a swamp. We build concrete slab-on-grade in both places. Which place has more slab moisture problems? Yes… Read More
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