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We have hurricanes, we have floods, we have wildfires….It is hard enough to deal with these as it is…but when we also want high levels of thermal performance…We are going to look at roofs…not because… Read More
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Wall assembly design and construction needs to consider rain, temperature, humidity as defined by the hygro-thermal regions, annual rainfall and the interior climate classes as environmental loads… 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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Concrete slab-on-grade foundations should be easy to insulate…but they are proving not to be easy to insulate. We were here more than a half decade ago (BSI-059: Slab Happy, April 2012) and again a… Read More
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To state the obvious…controlling rainwater entry is the single most important factor in the design and construction of durable buildings. Let me repeat….controlling rainwater entry is the single… Read More
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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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Crawlspaces continue to be a mess ever since we decided to insulate them and put air conditioned buildings on top of them1. We were here before (BSI-009: “New Light in Crawlspaces”, May, 2010)…but… Read More
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So what do candles and joints (aka “doobies”) have in common with baseboard electric resistance heating and heat pumps? Read on Macduff[1]…Over the years I have been in countless buildings that… Read More
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An edited version of this Insight first appeared in the ASHRAE Journal.By Joseph W. Lstiburek, Ph.D., P.Eng., Fellow ASHRAE The issues with stucco are pretty well understood and we have discussed… Read More
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Ten years ago (“BSI-024: Vocabulary”, October 2009) I issued a challenge regarding water control layers asking folks for ideas regarding a performance metric for water control layers. I suggested… Read More
Pagination
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