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Simple, low-cost "Thermal Break Wall" could make efficiency more accessible

EcoBuilding Innovators are a virtual R&D Department for better buildings! Case in Point: At virtually the same time, Martha Rose, spec builder of "City Cabins" fame, and Ben Walsh, Portland developer of Sage Green net-zero homes, invented an amazing new wall assembly. The "Thermal Break Shear Wall" affectionately known by many of us as the "Martha Wall" places a 1-1.5" layer of rigid foam insulation between the lumber framing and plywood sheathing in an otherwise conventional light-frame wall assembly. Will you use this innovation??
Simple, low-cost "Thermal Break Wall" could make efficiency more accessible

Thermal break wall assembly by Green One Construction

EcoBuilding Innovators are a virtual R&D Department for better buildings!  Case in Point: At virtually the same time, Martha Rose, spec builder of "City Cabins" fame, and Ben Walsh, Portland net-zero homes builder of Green One construction invented an amazing new wall assembly.  The "Thermal Break Shear Wall" affectionately known by many of us as the "Martha Wall" places a 1" - 1.5" layer of rigid foam insulation between the lumber framing and plywood sheathing in an otherwise conventional light-frame wall assembly.  This creates a complete thermal break, increases the insulative value, and airseals all-in-one, costing only slightly more without disrupting traditional framing crews workflow!  Two recent case studies in the Code Innovations Database detail how others can use this assembly to save energy, money and share the benefits of better buildings. Wondering about it's structural strength?  Check out the case studies and tell us what you think!!  Will you use this innovation??  Thermal Break Shear Wall at Sage Green. Plywood-over-Foam “Martha Wall” at City Cabins® Homes.  Email your thoughts to education@ecobuilding.org.

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