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New collaboration aims to combine PassivHaus performance and prefab

EcoCor

New collaboration aims to combine PassivHaus performance and prefab

EcoCor, a construction firm from Maine, hopes to bring PassivHaus-quality dwellings to the U.S. Originating in Germany, PassivHaus standards mandate super energy-efficient homes that use little heating or cooling.

EcoCor has their eyes set on integrating PassivHaus’s quality controls with prefabricated housing. To do so, they are importing specialized tongue-and-groove panel technology from Sweden and working with Pennsylvanian architect Richard Pedranti, who himself has worked on numerous PassivHaus projects in the U.S.

https://youtu.be/MvRvvkXcfaQ

As reported by Treehugger, EcoCor strays away from entire modular prefab units, instead producing panels, thus saving space and transportation costs. Panels, floors, and walls are assembled in-situ, allowing for more floor plans than would usually be available. Services and finishes such as plumbing and electrical fittings are installed after the panels go up.

“The wall has everything; a big space for electrical wiring on site, piles of cellulose insulation, MENTO moisture control membrane, and then a substantial rain screen space,” said architect and green design specialist Lloyd Alter. “At the end of each panel there is a special layer of cellulose that squeezes together to the next panel, making the seal very tight.”

The dwellings sit on raft foundations—where concrete is poured over a raft of rigid insulation—which stops heat loss through the ground. As Alter said, “If it works in Maine, it will work anywhere.”

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