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Designing & Building Home As System
 

Designing & Building Home As System

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Presentation/Opening Address for 2008 Building Green and Energy Efficient Homes Expo.

Presentation/Opening Address for 2008 Building Green and Energy Efficient Homes Expo.

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Designing & Building Home As System Designing & Building Home As System Presentation Transcript

  • Presented by Cheryl Lee C/L Design-Build, Inc. Designing & Building the Home as a System
  • Designing & Building a Home as a System
    • WELCOME!
    • FACT: Buildings use close to half of the world’s energy production with many of our new buildings being no more efficient than those built more than a century ago.
    • Throughout this Expo, we will explore:
      • Site Planning
      • Building Envelope
      • Resource Efficiency
      • Energy Efficiency
      • Water Efficiency
      • Indoor Air Quality
  • Designing & Building a Home as a System
  • Designing & Building a Home as a System
    • Site Planning
      • Protect & enhance the natural features
      • Minimize soil disturbance & erosion
      • Manage storm water
      • Landscape for water & energy conservation
      • Consider solar orientation
  • Designing & Building a Home as a System
    • Building Envelope
      • Foundations
        • Keep groundwater & water vapor out (water proofing; drainage)
        • Keep soil gases out (vapor retarder; sealing)
        • Keep heat in during winter (insulate)
      • Thermal Envelope/Exterior Wall Assembly
        • Airtight Construction
        • Moisture Management
        • Environmentally Appropriate Insulation
        • Windows & Doors
  • Designing & Building a Home as a System
  • Designing & Building a Home as a System
    • Airtight Construction
      • Seal bottom plate with caulk (inside edge after walls are up)
      • Seal rim/band joist
      • Insulate exterior walls behind tubs/showers w/spray foam & insulation board
      • Seal door thresholds to subfloor
      • Seal windows & exterior door rough opening w/backer rod & caulk or non-expanding latex-based spray foam
      • Seal electrical boxes on exterior walls w/caulk or foil tape
      • Seal plumbing or HVAC penetrations w/caulk
      • Install weatherstripping & insulate attic hatches
  • Designing & Building a Home as a System
    • I-Joist & LVL
    Caulk at framing Cellulose Insulation
  • Designing & Building a Home as a System
    • Moisture Management
      • Deflection
        • Roof overhangs (Eave & Rake)
          • Illinois Climate Index is 35-65
          • For 2-story w/lap siding: overhangs should be 12”-18”
        • Covered Entries
        • Gutters & downspouts
          • Divert water minimum 5’ away from home foundation
      • Drainage
        • Housewraps
        • Metal flashing
  • Designing & Building a Home as a System
    • Environmentally appropriate insulation
  • Designing & Building a Home as a System
    • Windows & Glass Doors
      • Low-e Glass Coatings-
        • Transparent metallic oxides that
        • Reflect up to 90% of long wave heat energy back into house
        • While passing shorter wave, visible light
        • Improves insulating value like adding another pane of glass
      • Argon gas fillings
        • Safe inert gas
        • Boosts energy efficiency
      • U-Factor
        • Lower U-Factor indicates higher insulating value
      • Solar Heat Gain Coefficient (SHGC)
        • The fraction of solar radiation admitted through a window
        • Lower number equals less solar heat/better shading
  • Designing & Building a Home as a System
    • Resource Efficiency
      • Reduce quantities of materials
      • Enhance durability/reduce maintenance
      • Use recycled materials
      • Use renewable materials
      • Recycle waste materials
  • Designing & Building a Home as a System
    • Envelope Strategies
      • Simplify house designs
      • Optimize value engineering
        • Align framing; eliminate unnecessary framing; “California Corners”; single top plate for non-bearing interior walls.
      • Engineered wood products
        • Uses 80% of each log vs. 50% for solid sawn
        • Enhanced design values=longer spans
        • Plywood; Oriented strand boards (OSB); I-joists; Laminated veneer lumber (LVL); Parallel strand lumber (PSL)
      • Alternative Framing Systems
        • Insulated Concrete Forms (ICF’s); Structurally Insulated Panels (SIP’s); Modular; Panelized wall systems; Trusses
      • Alternative Siding Products
        • Fibercement; Vinyl; Masonry
  • Designing & Building a Home as a System
    • Envelope Strategies, Cont.
      • Use Recycled Materials
        • Reclaimed Flooring
        • Reclaimed Timbers
        • Cellulose Insulation
        • Recycled Content Decking
        • Glass tiles
        • Composite Materials (MDF) for cabinets & trim
      • Use Rapidly Renewable Materials
        • Bamboo & cork flooring
        • Eucalyptus wood in cabinetry
  • Designing & Building a Home as a System
    • Envelope Strategies, Cont.
      • Recycle Building Waste materials
        • Masonry (as fill under porches, walks, and driveways)
        • Cardboard
        • Wood
        • Copper
        • Aluminum
        • Drywall (reused in new drywall)
        • Plastics
        • Habitat For Humanity
  • Designing & Building a Home as a System
    • Energy Efficiency
      • Heating and Cooling Options
        • Gas Furnace
          • Direct Vent-High Efficient Furnace >90%
          • 13 Seer AC is Code (17-20 Seer is best)
          • Centralized Returns
          • Equipment Sizing
          • Programmable (set-back) Thermostat
          • Duct Sealing
          • Keeping Filters Clean
        • Hydronic Systems
          • Imbedded Floor Loops
        • Geothermal Heat Pumps
          • Shallow Trenches
          • Bore Holes
  • Designing & Building a Home as a System
    • Energy Efficiency
      • Heating and Cooling Options, Cont.
        • Humidity Control
          • Humidistat/Hygrometer (30%)
        • Ventilation & Fresh Air
          • HRV; ERV; Fan-Air Cyclers
        • Solar Thermal
          • Passive & Active
          • Solar Thermal Collectors
        • Testing by Energy Raters/Inspection Services
          • Blower Door Testing
          • Duct Blaster
          • Infrared Thermal Imaging
  • Designing & Building a Home as a System
    • Energy Efficiency, Cont.
      • Lighting (consumes 15% of household electricity)
        • Lighting Control reduces electricity costs
          • Dimmer Controls
          • Timers
          • Occupancy Sensors
        • LED & Compact Fluorescent Bulbs
        • Maximize Day Lighting
        • Design Lighting for Performed Functions
        • Exterior Solar Lighting
      • Hot Water Distribution
        • Direct Vent Gas Fired
        • Tankless
        • Solar with Electric or Gas Back-up
  • Designing & Building a Home as a System
    • Energy Efficiency, Cont.
      • Appliances
        • Typical Household spends $1500/year & Energy Star Appliances save up to 30%
        • Save water & electricity
  • Designing & Building a Home as a System
    • Water Efficiency
      • Indoor Water Conservation Practices
        • Low-Flow Toilets
        • Low-Flow Shower Heads
        • Front-Loading Washing Machines
        • Water Efficient Dishwashers
      • Outdoor Water Conservation Practices
        • Rainwater Collection Systems
        • Sustainable Landscaping
        • High-efficient Irrigation
          • Programmable switches
          • Timers
          • Moisture/Rain Sensors
  • Designing & Building a Home as a System
    • Indoor Air Quality
      • Eliminate Pollutants
        • Low VOC Materials
      • Ventilate
        • Controlled (Exhaust/Spot, Balanced/HRV’s)
      • Filtrate/Air Cleaning
        • Hepa Filters
        • MERV Ratings (Min. Eff. Reporting Value-Higher number is better)
        • Central Vacuum Systems
      • Separate
        • Seal Garage from rest of house
  • Designing & Building a Home as a System
    • Last But Not Least
      • Design & Build your home for your region
        • Adobe construction not good for Midwest!
      • Consider Universal Design for sustainability/longevity
        • Good for resale- increases the number of buyers
      • Use local products and native landscaping materials
        • Usually a lower initial investment
        • Helps the local economy, less shipping that can be better for environment
      • Take the time to learn how to operate/maintain your home
        • A well designed, quality home will fail if not maintained!
  • Designing & Building a Home as a System
    • Next Presenter: Brandon Leavitt/Solar Service