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Interior Paint and a Back Porch for the Potwine Passivhaus
Make sure you like the color of the specified paint before the painters do every room in the house
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The Potwine Passivhaus Gets Insulation and Drywall
At the last minute, the walls are made thicker to make sure that the house meets the Passivhaus standard
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Placing a Concrete Foundation on Rigid Foam Insulation
Careful coordination makes site prep and foundation work proceed smoothly at the Orchards at Orenco project in Oregon
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Tilt/Turn Windows Are Fabulous
Our triple-glazed windows were manufactured by a German company called Kneer-Südfenster
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Drainwater Heat Recovery Comes of Age
Unlike most drainwater heat exchangers, the EcoDrain is installed horizontally
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A Heat-Recovery Ventilation System for the Potwine Passivhaus
A Zehnder unit brings in fresh ventilation air while simultaneously exhausting stale air
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What We Started With
We bought a house that needed a lot of work
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Connecting to the Grid Can Be Expensive
At the Potwine Passivhaus, the high costs associated with a long driveway raise the question: Would an off-grid PV system have been cheaper?
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Straw-Bale Walls for Northern Climates
A ‘third generation’ straw-bale technique combines a straw-bale interior wall with an exterior stud wall insulated with cellulose
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The Largest Passivhaus Building in the U.S.
The Orchards at Orenco will be a 57-unit affordable housing project near Portland, Oregon