The Sustainable Design Center

Bio-regionally Appropriate Architecture Collaboration and Planning for a Cleaner, Healthier Planet

2506 Wilson

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Firm: Benjamin C. Obregon Architect

Project Status: Project completed in the spring of 2007

Project Description: Two – 2300 s.f. 3 bdrm 2 bath Duplexes.

Green Specifications:

2×6 studs w/ R-19 wall insulation, pre-engineered floor and roof trusses, a metal roof with continuous ridge and soffit venting, radiant barrier and a minimum R-30 roof insulation (cotton batts, blown cellulose or Icynene). Stained concrete first floors, bamboo second floors. Water based sealants and low VOC paints and stains. A high efficiency HVAC unit (seer 14.0) with rigid ductwork with turning vanes at all corners is run in an insulated plenum. Dedicated return air ducts and ceiling fans in all habitable rooms. A “whole building fan” w/ insulated cover completes the HVAC system. Wood, metal clad, double pane, low-e windows are located and sized to enhance natural ventilation and minimize heat gain. Restroom exhaust fans rated for continuous use, vented to the outside and tied to a humidistat, a demand water heater, low-flow plumbing fixtures. Exterior security lighting tied to motion detectors. Interior task based fluorescent lighting.