Innovative Passive Solar Design for Sustainable Homes in San Francisco
This guide explores essential elements of passive solar design, focusing on orientation, shading, and thermal mass. Key features include 12” thick concrete slabs with fly ash for enhanced thermal performance, efficient framing techniques like 24” on-center framing and 2-stud corners, which reduce thermal bridging and save on lumber costs by 25-33%. Design options highlight the use of various siding materials, large high-efficiency windows, and eco-friendly interior features. Homeowner education on maintenance and equipment ensures longevity and sustainability in building practices.
Innovative Passive Solar Design for Sustainable Homes in San Francisco
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Presentation Transcript
Elements of Passive Solar Design • Orientation and Shading • Thermal Mass: 12” thick concrete slabs (with 30-35% Fly Ash)
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
Efficient Framing • 2-stud channel • Raised heel truss • Insulated header
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
