Gbf08 laebon chess net zero home


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Gbf08 laebon chess net zero home

  1. 1. As part of CMHC’s EQuilibrium Sustainable Housing Demonstration Initiative, CHESS proudly presents a house designed to produce as much energy as produces... The lead firm for the CHESS Project, Laebon Homes, is unique in the Central Alberta market. It is the only high volume builder of homes that also creates large, exclusive communities. CANADA MORTGAGE AND HOUSING CORPORATION
  2. 2. This year Laebon will build over 300 homes throughout Central Alberta and are developing another 300 lots. These will include a variety of single and multi-family projects, designed for a range of As part of CMHC’s EQuilibrium Sustainable Housing Demonstration Initiative, clients, from first time home buyers to luxury home purchasers. CHESS proudly presents a house designed to produce as much energy as produces... CANADA MORTGAGE AND HOUSING CORPORATION
  3. 3. Laebon Homes currently has communities in... Red Deer As partLacombe EQuilibrium Sustainable Housing Demonstration Initiative, of CMHC’s CHESS proudly presents a house designed to produce as much energy as produces... Sylvan Lake Rocky Mountain House Penhold Olds Innisfail Ponoka and Wetaskiwin. CANADA MORTGAGE AND HOUSING CORPORATION
  4. 4. CHESS... Canadian Housing Energy Sustainable Solutions. As part of CMHC’s EQuilibrium Sustainable Housing Demonstration Initiative, CHESS We selected the a house designed to produce asof designing a Net Zero proudly presents name as we felt the process much energy as produces... Energy Healthy Home would be very much like the game of CHESS. It would involve many players... Government Trades Industry Suppliers Educators Engineers Researchers Consultants ...all playing a different role but all dependant on one another to achieve “Net Zero”. CANADA MORTGAGE AND HOUSING CORPORATION
  5. 5. VISION STATEMENT ... CHESS aims to improve the quality of life for Central Alberta homeowners and reduce the environmental impact of communities by providing energy and resource-efficient housing that: Offers the healthiest possible indoor living environment Produces useful energy resulting in net zero energy performance Protects and conserves natural resources Optimizes the use of land resources and reduces emissions and pollutants Is attractive, affordable and adaptable
  6. 6. THE LOCATION In keeping with Net Zero objectives, CHESS selected As part of CMHC’s EQuilibrium Sustainable Housing Demonstration Initiative, CHESS proudly presents a house designed to produce as much energy as produces... a lot for its demonstration home based on two key factors: solar exposure and show home suitability. In planning new communities site orientation needs to be carefully considered if homes are to be designed to accommodate solar panels. CANADA MORTGAGE AND HOUSING CORPORATION
  7. 7. THE TEAM Our initial meeting involved a team from Laebon Homes, as well as a variety of consultants, suppliers, trades and representatives from the City of Red Deer Inspections, Electrical and Environmental Departments. CANADA MORTGAGE AND HOUSING CORPORATION
  8. 8. THE DESIGN CHARETTE… As part of the Integrated Design Process several small group meetings as well as a weekend Design Charette were held to brainstorm ideas and discuss the building envelope, the energy systems, the design of the home, resource and environmental issues and cost effects of various options. CANADA MORTGAGE AND HOUSING CORPORATION
  9. 9. And like the game of CHESS We have tried some strategies that have been successful, Some things where we have had to step back and take another look before we make the next move Some where we will take a different approach the next time And we have constantly been learning from one another. CANADA MORTGAGE AND HOUSING CORPORATION
  10. 10. The CHESS Partners  Aardvark Controls & Energy Solutions  ArtKtecture  Bearden Engineering Consultants Ltd.  Bruins Plumbing and Heating Ltd.  Dimensions Design Resources Inc.  EA Energy Alternatives  Enervision  Howell Mayhew Engineering  Hydron Module  Sedmek Inc.  Solar Engineering Group  Sustainable Works  Western Canadian Solar Distributors  Wordsmith Communications
  11. 11. THE SITE... The lot selected fronts to the east and has street exposure on the south side. Within the community, this lot showed the best potential for passive solar design.
  12. 12. COMPATABILITY... One important consideration in the design of our project was that the exterior of the home be compatible with the surrounding homes in the neighbourhood and meet the architectural control guidelines.
  13. 13. HEALTH Making you feel great about your indoor environment In order to ensure the highest possible indoor air quality and improve homeowner health and comfort CHESS chose  Natural materials that are emission-free.  Manufactured products with no or minimal volatile organic compounds (VOCs) or other harmful toxins.  A heat-recovery ventilator that ensures regular air exchange while removing harmful pollutants and excess moisture.
  14. 14. HEALTH Hydronic heat in the home will provide thermal comfort. It is quiet, offers constant temperatures, can be zoned and does not stir up dust or allergens. Daylighting is another feature in the home. Spaces such as the stairway will have interior windows so they can share the natural light from other spaces. The acoustic properties of materials were also taken into consideration in order to reduce both external and internal noise sources.
  15. 15. ENERGY STRATEGY Switching on to passive and renewable sources To reduce the costs of purchased energy, the CHESS home blends state-of-the-art technologies and with effective design principles.  Our first goal was to lower the energy needs of the home as much as possible.  We focused on the building envelope and looked at building systems and materials that would achieve maximum R-value and minimize heat loss.  Through modeling different options and comparing initial and ongoing costs to operate the various systems we made the decision not to provide natural gas to the home.  Then we looked at different passive and renewable ways to provide energy to the home.
  16. 16. THE BUILDING ENVELOPE… The highly efficient building envelope – When modeled using Hot 2000 which includes increased insulation levels, software a typical Laebon Home high performance windows and careful will achieve and EnerGuide attention to construction details – reduces rating of around 75. By upgrading the envelope we overall energy demand achieved a rating of 87 for our home. To accomplish this we selected the following:  R-54 Walls - “Emercor” Sips panels with 2” EPS Rigid Insulation to Outside  R-80 “Spider” Insulation in Ceiling  R-20 Insulation under Slab  Superior performance Fiberglass windows
  17. 17. PASSIVE STRATEGIES Large south windows with adequate shading Minimizing windows on the north Air lock entry 3 season room on the west side Increased thermal mass in interior
  18. 18. RENEWABLE STRATEGIES  Solar thermal panels will be provided for both domestic hot water and for space heating.  The solar panels will provide heat for the domestic hot water first and then once that is satisfied will store heat in water storage tanks. Heat from the storage tanks will be used to heat the home. The floors are concrete and will have hydronic heat throughout. A ground source heat pump will provide the back-up heating for extended periods of cloudy weather.
  19. 19. ELECTRICITY… Electrical requirements will be reduced as much as possible through careful selection of appliances and the use of compact fluorescent or LED lighting as well as infrared detectors, motion lights and phantom load reduction strategies. Electricity for the home will be supplied by a grid-tied photovoltaic system.
  20. 20. 160 Annual End Use Energy Consumption and Production Comparison of National Residential Housing and The Laebon CHESS Project 140 Total Annual Energy End Use 120 300 250 National Energy Consumption 100 200 Energy (kWh/m2) The Laebon CHESS Project Energy Consumption Energy (kWh/m2) The Laebon CHESS Project Renewable Energy 150 80 Production 100 50 60 0 40 20 0 Space Heating Water Heating Major Appliances Other Interior Lighting Space Cooling Solar Domestic Solar Electricity Appliances* Water Heating Source: Energy Use Handbook Data: 1990 and 1998 to 2004, Natural Resources Canada, 2006. * "Other Appliances" includes small appliances such as televisions, video cassette recorders, digital video disc players, radios, computers and toasters.
  21. 21. RESOURCES Making lower consumption a way of life Consideration was given to the use of sustainable materials, durability, material efficiency and water conservation.  The home will reduce the overall consumption of wood and will verify that all wood used is from sustainable harvested sources.  Recycled content factored into the selection of drywall, insulation and finishes.  Stucco, stone and 25 year asphalt shingles were selected for the exterior materials of the home. Interior finishes include concrete, cork, reclaimed wood and recycled glass tiles.  Water consumption will be reduced through the use of low-flow showerheads, dual-flush toilets, appliances that use less water, and the use of rain barrels to capture water for landscaping. We have also decided to incorporate the use of a Brac grey water recycle system.
  22. 22. A landscape plan which RESOURCES incorporates the use of rain barrels and the principles of xeri-scaping with low water use and native plants will reduce the demands for municipal water. Construction waste will be reused as landscape features and as mulch for garden beds.
  23. 23. ENVIRONMENT Treading gently on your part of the planet. CHESS sought to minimise its own environmental footprint by  Selecting materials that are produced with minimal environmental impacts.  Buying from local suppliers to reduce transport-related impacts.  Selecting materials that could be reused or recycled at the end of the homes life cycle.  Future homeowners will have the advantage of  Choosing appliances that consume less energy and produce less emissions.  Durable finishes that are low maintenance and rarely need to be replaced.
  24. 24. AFFORDABILITY Investing in innovation The CHESS home strives to exceed owner expectations for aesthetics, affordability and adaptability. CHESS elected to create a home with built-in potential – one that can expand and adapt to meet the changing needs of the homeowners. From foundational elements to finishing touches, buyers can select features that reflect their personal convictions and financial resources.
  25. 25. ADAPTABILITY...  In our initial proposal to CMHC we proposed a 1200-1400 sq. ft. home with flexible spaces for future development.  We wanted a home that could be purchased as a starter home, by a single person who could perhaps rent out the extra bedroom.  It also needed to be comfortable for a couple and be able to expand to accommodate the needs of a growing family.  The home’s energy systems would be modelled to meet the needs of a family of 4 with 2 teenagers living at home.  Later, as family needs changed again, the house could adapt and accommodate spaces such as a home office, space for an aging parent or a even a suite for a caregiver or rental income.  We felt that it was important that the home be easily modified to meet barrier-free requirements.
  26. 26. ACCESSABILITY… The main floor of the home will be 1109 sq. ft. and can easily be modified to suit barrier free requirements. It has an attached garage as this was a requirement of the of the architectural controls for the area.
  27. 27. BASEMENT DEVELOPMENT… The basement can be developed to include a family room, an additional bedroom and bathroom as well as laundry and storage areas.
  28. 28. EXPANDABILITY… An optional second floor in the attic space can be added to accommodate the needs of a growing family which could include 2 bedrooms and a bathroom.
  29. 29. FLEXIBILITY…. Depending on the needs of the family this upper floor could also be developed as a larger master suite…
  30. 30. FLEXIBILITY…. … or a rental suite or a suite for a caregiver.
  31. 31. … The structure of the garage is designed so the space above the garage can be developed into a home office area in the future.
  35. 35. THE FUTURE In their upcoming projects Laebon Homes is considering… Using renewable energy to offset rising utility costs on a 94 suite apartment that is currently under construction Adding solar thermal for domestic hot water to all 77 homes in the first phase of their newest community in Red Deer
  36. 36. THE FUTURE Although not every new home will be a net zero energy home each purchaser can make positive choices that… Contribute actively to occupant health Produce or reduce energy Support resource conservation Reduce environmental impact of the home and occupants and select from a variety of options within their own budget that will have a positive impact on the environment.
  37. 37. THE FUTURE Thanks to programs such as the CMHC EQuilibrium Healthy Housing Initiative builders and developers across the country are demonstrating that Net Zero Housing is possible in Canada. As awareness increases more homeowners are looking for ways to reduce their own environmental impact. With government, industry, educators and researchers working together we will make a difference in our homes, our neighbourhoods and our world.