The OSB (Oriented Strand Board) used in SIP skins is made from small, plantation grown trees that can be sustainably harvested. Because engineered wood products use wood more efficient than sawn lumber, it requires less forest acreage to build a SIP home than a conventional wood framed house.

Expanded polystyrene (EPS), foam cores used in SIPs, are made of mostly air and very little petroleum. The average SIP home saves nineteen times the energy it took to make the EPS insulation in the first year of installation.

[Green Building Pro] SIPs and the Contribution to Green Sustainable Buildings

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