No Stress Panel System for Timber Framing

The issue of how to enclose and insulate timber frame buildings has long been a difficult one. In-fill framing (between the timbers) is time-consuming, and there is a risk of trapping moisture inside the wall cavity. Structural insulated panels (SIPs) or non-structural stress-skin panels are rapidly installed, well insulating, and airtight, but they rely on foamed plastic insulation—either expanded polystyrene or polyisocyanurate, both of which are petrochemical-based and carry various environmental burdens (see

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