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SUSTAINABLE BUILDINGS. A New Approach to Building CAUBO 2006. John Metras, P.Eng. University of British Columbia. Overview. What is a sustainable or “green” building? What is LEED ® ? Why build green? How much does it cost? Case Study: UBC Life Sciences Centre Challenges

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SUSTAINABLE BUILDINGS

A New Approach to Building

CAUBO 2006

John Metras, P.Eng.

University of British Columbia


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Overview

  • What is a sustainable or “green” building?

  • What is LEED®?

  • Why build green?

  • How much does it cost?

  • Case Study: UBC Life Sciences Centre

  • Challenges

  • Keys to Success


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What is a sustainable building?

  • Uses key resources more efficiently – energy, water, materials and land

  • Reduces ecological loading – greenhouse gases, ozone-depleting substances, wastes

  • Creates healthier environments for people to live, work and learn

  • Has lower overall lifecycle costs


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What is LEED®?

  • Leadership in Energy & Environmental Design

  • Rating system for developing high performance, sustainable buildings

  • Voluntary, consensus-based, well recognized

  • Developed by US Green Building Council

  • Adapted by the Canada Green Bldg Council


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LEED® Point System


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LEED® Rating Levels



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Why use LEED®?

  • Provides a common and consistent framework for defining a “green” building

  • Is relatively simple to implement

  • Is not overly prescriptive

  • Can be adapted for local climates and standards

  • Provides legitimacy of 3rd party certification

  • Is gaining momentum as the accepted rating system


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LEED® Projects in Canada


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Positioning of LEED® in the Market


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Green Building Benefits

  • 25-60% energy savings

  • 30-50% water savings

  • CBIP financial incentive

  • Improved worker productivity – due to improved lighting and thermal comfort

  • Reduced sick time from allergies, asthma & respiratory illness

  • Lower life-cycle costs


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Financial Benefits

Source: The Costs and Financial Benefits of Green Buildings

A Report to California’s Sustainable Building Task Force – October 2003


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Financial Benefit Breakdown

Source: The Costs and Financial Benefits of Green Buildings

A Report to California’s Sustainable Building Task Force – October 2003


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Capital Cost Premium

Source: The Costs and Financial Benefits of Green Buildings

A Report to California’s Sustainable Building Task Force – October 2003


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Case Study:UBC Life Sciences Centre


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UBC Life Sciences Centre

  • Architects: Bunting Coady/Diamond & Schmitt

  • Construction Manager: Ledcor

  • Area: 52,000m2 / 560,000ft2

  • Cost: $110 million

  • Occupants: 2,654 staff, researchers, students

  • Energy: 28% less than standard building

  • Water: 50% less than standard building

  • LEED® Rating: Gold


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UBC Life Sciences Centre

Sustainable Site

  • Brownfield site

  • Bicycle storage & changing facilities

  • No new parking spaces

  • Re-vegetated 87.5% of landscape with native and adapted plants

  • Erosion & sediment control during construction


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UBC Life Sciences Centre

Water Efficiency

  • Dual-flush toilets

  • Waterless urinals

  • Sensor-controlled faucets

  • 87.5% of irrigation system to be de-commissioned after 1 year plant establishment period


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UBC Life Sciences Centre

Energy Efficiency

  • 28% better than ASHRAE 90.1 standard

  • Annual energy savings of 6.4MWh, equal to $180,000

  • Heat recovery systems

  • Demand ventilation

  • Maximum natural lighting

  • Motion sensor lighting controls


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UBC Life Sciences Centre

Materials & Resources

  • Local building materials, 10% recycled content

  • 80% of construction waste recycled or salvaged

  • Green housekeeping practices

  • Comprehensive recycling and composting program


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UBC Life Sciences Centre

Indoor Environmental Quality

  • Low-emitting materials

  • CO2 monitoring

  • BMS for environmental control and monitoring

  • Displacement ventilation

  • Maximum natural lighting

  • Green housekeeping program


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Other Green Buildings at UBC

  • CK Choi Building (1994)

  • Liu Centre (1999)

  • Technology Enterprise Facility III (2003)

    - LEED® Silver Certified

  • ICICS Building (2005)

  • Frederick Kaiser Building (2005)

  • Aquatic Ecosystems Research Lab (2005)

    - LEED® Silver Certified

  • Buchanan “D” Block Renewal (2006)

    - LEED® Silver (planned)


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Challenges

  • High expectations of building performance

  • Acoustics

  • Waterless urinals & dual-flush toilets

  • Motion sensor activated lighting

  • Operating systems at optimal level


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Keys to Success

  • Incorporate green principles at the beginning of the design process

  • Involve operations staff early in the design process

  • Avoid unmanageable complexity in building systems

  • Undertake a thorough commissioning process

  • Ensure staff are properly trained in building system operation


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Summary

Why Build Green?

  • Proven environmental & health benefits

  • Minimal initial cost premium

  • Life-cycle cost savings


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Further Information

  • Canada Green Building Council http://www.cagbc.org/

  • US Green Building Council http://www.usgbc.org/

  • UBC Campus Sustainability Office

    http://www.sustain.ubc.ca/