Put a cork on it

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Rooks house
credit: Lloyd Alter

Cork is one of TreeHugger's favorite materials for so many reasons; it is probably the greenest insulation you can buy. Albert Rooks, who owns a green building supply business in Olympia, Washington, Small Planet Supply, covered his own house with the stuff when he renovated. We visited it after the Passive House Northwest conference.

It is a charming little two bedroom house on a slope, overlooking the harbour.

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