While energy prices have dropped from their record highs a few months ago, many area residents are still wondering how they'll pay for heat this winter. The most common fuel in northern New England, heating oil, is still priced at over $4.00 per gallon.
Today the Department of Energy's Building Technologies Program launched the Zero Energy Buildings Database with an offering of three Zero Energy Buildings (ZEBs) and one near-ZEB. A lot of work has been put into defining ZEBs and you can learn about the different types at the Net ZEB page.
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Read the current bulletinMaverick NYC mechanical systems designer Henry Gifford has long been a critic of LEED, arguing that it encourages the wrong things, and doesn't go far enough to ensure that certified buildings really save energy or provide good air quality. I have great respect for Gifford and the work he does to design and commission low-energy buildings with great ventilation on very tight budgets. Unlike too many practicing engineers, he knows exactly how much energy his buildings are using.
In this final installment about insulation we'll take a look at the family of rigid boardstock materials. Unlike fiberous or spray-foam insulation that is installed in wall or ceiling cavities between the studs, rafters, or joists, boardstock insulation is applied either on the interior or exterior surface, spanning across the framing.