screened porch with wood floor
Photo: Stephen Karlisch
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Use Materials That Last

Durability reduces future waste. To blend in the addition with the old house, it was sided with HardiPlank, a long-lasting fiber-cement product, instead of wood. For the porch flooring, they chose ipe, a fast-growing, tropical hardwood that's unusually dense and tough (though the Green Building Program has not been able to document an ipe that they feel is harvested sustainably). The support framing under the ipe was treated with an eco-friendly borate solution to prevent termite damage.

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