SUSTAINABILITY & LEED. Mayra Portalatin, LEED AP O + M

Transcription

1 SUSTAINABILITY & LEED Mayra Portalatin, LEED AP O + M

2 What s the Problem?

3 What s the Problem? Buildings* account for 72% of total US electricity consumption and 39% of greenhouse gas emissions. U.S. Department of Energy

4 What s the Problem? The US uses 400 billion gallons of water per day. U.S. Geological Survey Operations of buildings account for approximately 47 billion gallons per day (14% of total) U.S. Geological Survey

5 What s the Problem? The U.S. generated approximately 254 million tons of municipal solid waste (MSW) in million tons of construction and demolition waste in the U.S. (approx. 2.8 lbs/person/day) U.S. EPA

6 Making a Change United Nations Stepped in World Commission on Environment and Development (WCED) or The Brundtland Commission (1983) The Convention on Climate Change and the Kyoto Protocol (1994)

7 Sustainability Sustainability is the ability to meet the needs of the present without compromising the ability of future generations to meet their own needs. [Brundtland] It s not an END, it s a MEANS... a transition to a higher level of design. [USGBC] Source: World Commission on Environment and Development: Our Common Future (April 1987)

8 Sustainability Planet People Triple Bottom Line ECONOMIC Profit

9 Evolution of Green Rating Systems Source: IFMA How-To Guide: Green Rating Systems (2010)

10 US Green Building Council A national nonprofit organization comprised of representatives of all building related professions Instituted to promote the green design and construction Developer and administrator of the Leadership in Energy and Environmental Design (LEED) Building Rating System

11 LEED Why was it Created? Facilitate positive results for the environment, occupant health and financial return Define green by providing a standard for measurement Prevent greenwashing Promote whole-building, integrated design processes

12 GBCI Growth led to the need for a third party professional accreditation and certification body: Green Building Certification Institute (GBCI)

13 USGBC and GBCI

14 LEED Credentialing Tier I: LEED Green Associate credential attests to demonstrated knowledge and skill in understanding and supporting green design, construction, and operations. Tier II: LEED AP+ : The LEED AP+ credential signifies an extraordinary depth of knowledge in green building practices and specialization in a particular field: commercial building design & construction, commercial operations & maintenance, commercial interiors, residential design & construction, and neighborhood development.

15 LEED Credentialing TIER III: LEED AP Fellow: LEED Fellows enter an elite class of leading professionals who are distinguished by their years of experience and a peer review of their project portfolio. Fellows contribute to the standards of practice and body of knowledge for achieving continuous improvement in the green building field.

16 LEED Credentialing Green Associate Professionals who want to demonstrate green building expertise in non-technical fields of practice Examples: Marketing, Administrative, Professionals, Human Resources, Junior Staff LEED AP Technical professionals who want to demonstrate the ability to guide a building through LEED certification process Examples: Technical Senior Staff, Engineers, Architects

17 LEED Credentialing Credentialing Maintenance Program (CMP) Earn required CE hours during a 2-year period LEED APs: 30 CE hours biennially (6 of which must be LEED-specific hours) LEED Green Associates:15 CE hours biennially (3 of which must be LEEDspecific hours) Self Renewal Process (Submit proof and $50 renewal fee) If you can t meet CMP: Must re-take test.

18 LEED Rating Systems Rating Systems New Construction Existing Commercial Core & Buildings Interiors Shell Schools (K-12) Neighborhood Development Retail Homes Portfolio Program

19 LEED Certified Buildings in US LEED Rating System LEED CI LEED CS LEED EB LEED Schools LEED NC LEED Retail TOTAL Number of Certified Buildings ,751 Source: USGBC, December 2010 LEED Retail 2% LEED CI 10% LEED NC 30% LEED Schools 1% LEED EB 52% LEED CS 5%

20 LEED Rating System Reference Guides

21 LEED Rating Systems Certified Silver Gold Platinum

22 LEED Categories Sustainable Sites Site Location & Site Management Water Efficiency Reduce Water Consumption Energy Efficiency Reduce Energy Consumption Materials & Resources Sustainable Purchases & Waste Diversion Indoor Environmental Quality Improving Occupant Comfort

23 LEED Categories Locations & Linkages Proximity to Services & Transportation (LEED for Homes) Awareness & Education Home Builders Educating Home Owners (LEED for Homes) Innovation in Design Going Above & Beyond LEED or Exemplary Performance Regional Priority Bonus Points Based on Region

24 Where do you fit in? Civil engineers and their role in LEED Green Design Facility Renovations / Additions Repair and Restoration

25 Green Design Design and construction practices that significantly reduce or eliminate the negative impact of buildings on the environment and occupants in five broad areas: Sustainable site planning Safeguarding water and water efficiency Energy efficiency and renewable energy Conservation of materials and resources Indoor environmental quality

26 Sustainable Site Planning Reduce impacts to Stormwater flow Habitat encroachment Urban sprawl Heat island effect

27 Sustainable Site Planning What can you do? Build Small Minimize Hardscape Minimize Water Usage Use Reflective Materials Develop a Sustainable Site Management Plan

28 Sustainable Site Planning Heat Island Effect Caused by roofs and pavements absorbing heat Creates a mean temperature increase F

29 Sustainable Site Planning Heat Island Effect How to Reduce it? Roofs with High Solar Reflectance Pavements with High Solar Reflectance Vegetative Roofs You want high SRI!

30 Sustainable Site Planning Solar Reflective Index = SRI is a value that incorporates both solar reflectance and emittance in a single value to represent a material's temperature in the sun. SRI quantifies how hot a surface would get relative to standard black and standard white surfaces. Roof Type SRI Required (LEED) Example Low - Sloped 78 White Single Ply = 84 White Granular = 28 Steep - Sloped 29 Black Shingles = 1 White Shingles = 21-40

31 Sustainable Site Planning Vegetative Roof Reduces heat absorption Decreases the amount of stormwater leaving the site Mitigates carbon emissions through carbon capture

32 Sustainable Site Planning Vegetative Roof Considerations Can your roof bear the load? Will there be more or less maintenance? When is the best time of the year to install one? Will it cost more or less?

33 Green vs. Traditional Roof Roof Replacement Option 1: Option 2: Option 3: Traditional, asphaltbased, light-colored coating Cool, reflectivesurface, Single-ply Green, vegetative roof, plantings and pavers Single-Ply Membrane Initial cost: $25/sf EUL = 30 yrs Present Worth: $625K Initial Cost: $20/sf EUL = 15 yrs Present Worth: $500K Initial Cost: $30/sf EUL = 30 yrs Present Worth: $750K

34 Safeguarding Water Storm Water Control Limit disruption of natural water hydrology Reduce / eliminate pollution from stormwater runoff

35 Safeguarding Water What can you do? Harvest Rain Water Install Bioswales Create Rain Gardens Install Porous Pavement Install Grid Pavers

36 Materials and Resources Use materials with least environmental impact

37 Materials and Resources Sustainable Purchasing Specify Sustainable Building Materials Specify Energy & Water Efficient Equipment Construction Waste Management Salvaging Donating Recycling

38 Indoor Environmental Quality Follow Sheet Metal and Air Conditioning Contractor's National Association (SMACNA) Indoor Air Quality Guidelines for Occupied Buildings under Construction, 2007 Protect materials from moisture Provide temporary AHU filters Replace filters prior to occupancy Flush out affected space HVAC and lighting system to be returned to operation upon completion of construction Protect Indoor Air Quality During Construction

39 Indoor Environmental Quality Low-Emitting Materials Specify materials and products with low no or low emissions (i.e. VOC s) Examples: composite wood products, adhesives, sealants, interior paints and finishes, carpet systems, and furnishings Protect Indoor Air Quality During Construction

40 Where do you fit in? New Construction (Design) Site Selection Development area Study Ecological Impacts (erosion, heat island, light pollution) Watershed Features Site Ecology Enhancement Existing Building (Operations) Site Assessment Site Enhancement (reduce heat island, light pollution) Alternative transportation

41 Where do you fit in? New Construction (Design) Low-impact systems and materials Maximize use of renewable materials Reuse of existing buildings Durability, adaptability and disassembly Demolition waste Recycling & composting facilities Existing Building (Operations) Waste Reduction and Recycling Collection Storage/handling facilities Composting Waste Reduction Work Plan Waste audit Increasing diversion rates Construction, renovation and demolition waste

42 Questions Thank you! Contact: Mayra Portalatin, LEED AP