R2000 Homes

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R2000 Homes

• Energy EfficiencyIndoor Air QualityVentilation

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Energy Efficiency

• Built with intent of extraordinary performance
• R-2000 Standard is based on energy targets
• maximum amount of energy that a home is allowed
  to use for space and water heating
• target varies according to geographical location,
  size and fuel type
• Standard operating conditions are used in the
  calculations for other variables, such as
  lighting, appliance and interior loads.
• Energy target are met by using superior
  construction techniques and high quality products
• Lots of insulation
• Careful sealing to eliminate air leaks and drafts
• Energy-efficient heating, cooling and ventilation
  equipment
• Free solar heating used whenever possible
• Homes placed specifically to maximize amount of
  sun in the winter
• Minimizes purchased energy
• To keep cool in the summer Roof overhangs,
  awnings and strategic plantings (trees and
  shrubs)
• Energy efficiency windows have been a weak
  point, traditionally
• Advanced window technology easier to get both
  good energy performance, aesthetics
• Windows must have minimum Energy Rating value
  (operable (open and close) or fixed)
• Option decorative windows sidelights, windows
  in doors, leaded windows etc
• High performance
• air leakage allowed is half of other new homes

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Indoor Air Quality

• Focuses of design and building
• Quality of living environment
• Health
• Air can have a big impact
• Poor air ? tired and unwell
• Aggravates asthma and allergies
• Many causes for poor air quality
• Excessive moisture (basements, bathrooms and
  kitchens) becomes breeding ground for mould and
  fungus
• Can cause deterioration in the house
• Synthetic materials give off chemicals
• Dust and pollen ? in through cracks and leaks
• Cooking etc produce unpleasant odors
• R-2000 takes a systematic approach to improved
  air quality and a healthier home.

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Ventilation

• An important key to good indoor air quality is
  ventilation
• getting rid of moisture and stale air
• replacing it with fresh air from the outside
• In most homes, mostly an accidental
• in R-2000 home ? ventilation is carefully
  controlled
• Most R-2000 homes use a whole-house mechanical
  ventilation system
• called a heat recovery ventilator (HRV)
• brings fresh filtered air to every room
• removes stale air, excess humidity, pollutants
  and odors
• air is replaced with fresh outdoor air 8 times
  a day
• HVR captures the heat from the outgoing stale air
  to pre-heat the incoming fresh air ? save energy
• cost to run the system is just pennies a day

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Sources

• Natural Resources Canada
• http//www.oee.rncan.gc.ca/residential/personal/ne
  w-homes/r-2000/standard/current/mechanical.cfm?att
  r20
• R2000 Homepage
• http//r2000.chba.ca/What_is_R2000/index.php