Advanced Framing Techniques
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Passive Solar DesignIn passive solar building design, windows, walls, and floors are made to collect, store, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer.
We designed this building to do just that by extending the roof over hang to shed solar heat gain in the summer months and absorb it in the winter months. The thermal mass of slab and wainscot of stone will also help heat and cool the house. |
WindowsThe windows are a big part of the passive solar design. We installed triple pane low-e windows throughout the house with a u-factor of .20. The triple pane windows will help keep the heat in during the winter months and out during the summer months.
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Air SealingTo air seal the building we are wrapping the exterior walls with felt paper, (1) inch R-5 rigid insulation, and taping the seams with Tyvek tape. We also used expandable foam to seal gaps around the windows.
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Solar ArrayWe are going to install a solar array to the roof of the building to make it a net-zero energy home. All electricity used in this structure will come from the solar array. We designed the house so that the solar array would be able to collect as much solar energy as possible. We did this by facing the bigger portion of the roof to the south.
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Re-use of building productsDuring the demolition of the shed we saved lumber and other usable materials so we could re-use them on the new building. We used all salvageable dimensional lumber during the framing stage. Floor joists were 2x12's used for forming footings. Temporary construction stair treads were flipped over and stained for finish treads.
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InsulationWe super insulated the walls, foundation, and attic using Passive Haus standards.
R-33 Exterior Walls:
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SiteWe used granite rocks from the hill behind the house to build retaining walls and stairs leading up to the house. We worked in a very tight area to save the deciduous trees an all sides.
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Waste Management95% of waste was diverted from the landfill through green waste recycling, traditional recycling, and no dumpster on site.
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Locally Sourced Material
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Re-use of building products
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Sustainable Finishes
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