• Collected and analyzed several data points for new homes, including: • Envelope air leakage • Efficacy in lighting • Duct leakage • Ceiling & exterior wall insulation • Basement & slab insulation • Windows For More Information and Data: Nebraska_Residential_Compliance_Evaluation_final.pdf 10 . [...] HVAC Performance • C402.5 – Air Leakage • C403– Mandatory Mechanical ❑C406.3 – Reduced Lighting Power Provisions ❑C406.4 – Enhanced Lighting • C404 – SWH Controls • C405 - Lighting ❑C406.5 – On-site Supply of • Building energy cost to be < Renewable Energy 85% of standard reference ❑C406.6 – Dedicated Outdoor Air System design building ❑C406.7 – High Eff. [...] Building Envelope + Air Sealing Package + HVAC Design, Equipment & Installation + ERV/HRV + Water Heating Design = Occupant Comfort 36 Moisture Management It Connects EVERYTHING! 37 The Major “Damage Functions” • Liquid water (bulk and capillary) • Air-borne water • Vapor • Radiation (UV degradation) • Pests • People 38 Climate Zones • Nebraska has only one climate zone – 5A • Cold & Moist climate. [...] Air Movement Air Movement Seeks Balance 50 How Does Air Get Around? Air In = Air Out For air movement you need: • A hole • A driving force • Another hole 51 Internally Generated Air Pressure Expansion of Conditioned Space • Conditioned space boundaries moving towards exterior surfaces of building • Garage isolated from house by air barrier/pressure boundary • Garage ventilated and conditioned inde. [...] 64 Balanced Ventilation • Blows air into and out of the house • Is cost effective by reclaiming energy from exhaust and supply airflows (60%-80%!) • Balances exhaust and supply flows (minimizes pressure differential) • Maintains the Minimum Ventilation Guideline automatically with proper set-up 65 Appraisals and Resale Value Appraisers • Unlike granite countertops, energy efficiency investments ar.
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- United States of America
