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Sometimes, It’s Cheaper to Install PV Than More Insulation
Before you decide to add more insulation to your attic, compare the cost of the extra insulation with the cost of supplying the necessary heating or cooling with solar electricity
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Designing Houses That Keep Their Cool
Follow these strategies to reduce the need for air conditioning
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What’s New with Water-Resistive Barriers
We’ve come a long way from the early Tyvek housewrap: our experience with Pro Clima Solitex, a WRB from Germany
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Defining Habitable Temperatures
If buildings lose power or heating fuel, how hot is too hot and how cold is too cold?
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Our Barn Roof Gets an 18-kW Solar Array
We’re installing 72 photovoltaic modules on the standing-seam roof of our Vermont barn
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A Slow Living Summit in Brattleboro, Vermont
This week’s conference celebrates local food, local economies, sustainability, and resilience
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Energy Use by Buildings
If we include building-related portions of industrial and transportation sectors, buildings account for a lot more energy than most people calculate
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America’s Greenest Office Building
The Bullitt Center is a six-story, 52,000-square-foot building aiming to meet the net-zero-energy, net-zero-water Living Building Challenge
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Mineral Wool Boardstock Insulation Gains Ground
Roxul ComfortBoard IS has some important environmental and performance advantages over XPS and polyisocyanurate insulation
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A Good Time for Energy Audits and Weatherization
The best time to think about an energy audit is when few other people are thinking of one