- BSI
- NEWS
It is pretty weird to dig a big hole and drop a building into it. A one story house with a basement is really a two story house that you dropped into the ground burying one story. Think about it…… Read More
Very Cold, Cold, Mixed-Humid
- BSI
- NEWS
Everyone is running around sealing the outside of buildings and the term “air barrier” has gone from obscurity to buzz word in less than a decade. But if you look at the physics we are sealing the… Read More
Very Cold, Cold, Mixed-Humid, Marine, Hot-Humid, Hot-Dry/Mixed-Dry
- BSI
- NEWS
…articulaciones* y esquinas y penetraciones...much more stylish…much more interesting than English. The battle to control water entry is won at building joints and corners[1] not so much at… Read More
- BSI
- NEWS
The problem with flood damaged buildings is that the damage is done by dirty water. Everything imaginable and unimaginable is in flood water. We call it “black water” or Category 3 water. It… Read More
- BSI
- NEWS
With the “perfect wall” we were here way back when (BSI-001: The Perfect Wall). The perfect wall has four control layers outside of the structure:a water control layeran air control layera vapor… Read More
- BSI
- NEWS
Maybe not. For years I have said that dog won’t hunt1. I have come around. The engineer in me likes tools. I can’t help it – it is a genetic defect we engineers are born with. With therapy we… Read More
- BSI
- NEWS
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
- BSI
- NEWS
“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
- BSI
- NEWS
We live at the bottom of an ocean of air. Each of us is carrying around 14.7 pounds per square inch when at the beach in Miami1. We are powerful creatures indeed. Imagine carrying around 101,000… Read More
- BSI
- NEWS
Putting ductwork outside is bad enough, but putting ductwork in an attic is even worse (Photograph 1). Attics are even hotter than outside during the summer and as cold as the outside in the winter.… Read More
Pagination
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