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San Francisco

San Francisco. Elements of Passive Solar Design. Orientation and Shading Thermal Mass: 12” thick concrete slabs (with 30-35% Fly Ash). Optimum Value Engineering and Efficient Framing. • 24” on center framing • 2 x 6 walls on ground floor • 2-stud corners

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San Francisco

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  1. San Francisco

  2. Elements of Passive Solar Design • Orientation and Shading • Thermal Mass: 12” thick concrete slabs (with 30-35% Fly Ash)

  3. Optimum Value Engineeringand Efficient Framing •24” on center framing •2 x 6 walls on ground floor •2-stud corners •ladders instead of 3-stud channels •stacking of vertical members •insulated headers •raised heel trusses Benefits: •reduces thermal bridging •more room for insulation •saves 25-33% on lumber costs

  4. Efficient Framing • 2-stud channel • Raised heel truss • Insulated header

  5. Twin Cities

  6. Design Options • Mix siding materials • Slab on grade • Large grouping of high efficiency windows Exterior •Cement board siding •Long life shingles •Pervious paving Interior •Incorporate building science principles with green materials •CFL usage •Limited use of carpeting •Slab on grade structure Education •Homeowner education on maintenance and equipment

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