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ALBANY UNIFIED SCHOOL DISTRICT SUSTAINABLE SCHOOL DESIGN – December 8, 2015 HIBSER YAMAUCHI Architects

SUSTAINABLE BUILDING DISCUSSION ALBANY UNIFIED SCHOOL DISTRICT

DECEMBER 8, 2015


BACKGROUND

Credentialed Professionals

• 12 LEED Accredited Professionals firm-wide • 3 LEED AP currently working on AUSD projects

Partners

• LIST Engineering contributed to the book “Sustainable School Architecture”


BACKGROUND

CHPS Projects: • Stonehurst CDC - Designed • Dover ES – HPI • Korematsu MS – HPI • Urban Promise – HPI • MLK Jr. Middle – “Design” • Fairmont ES – Designed (pending) • Hercules MHS – Designed (pending)

LEED: • VA Gero-psych - design intent • California Public Utilities

Commission • 180 Grand • Department of Water Resources

Solar: • Berkeley Arts Magnet • Malcom X Middle • Orinda USD – 5 campuses • Cragmont ES


TODAY’S DISCUSSION

• What defines a sustainable building • Sustainability programs and requirements • Design Strategies • Potential costs • Possibilities for AUSD


DESIGNING SUSTAINABLY • Consider materials used • Think about the environment as the building is

designed • Integrate the building with its systems • Treat the building as a “living” entity • Early team collaboration with owner

SUSTAINABILITY MEANS • Reduced energy consumption • Reduced resource consumption • Protection of natural resources • Improved quality of life


SUSTAINABLE PROGRAMS AND REQUIREMENTS


MEASURING SUSTAINABILITY • Building Code

• Requires certain sustainable measures including design energy calculations and building commissioning

• Rating Systems • Collaborative for High Performance Schools

“CHPS” • Leadership in Energy and Environmental Design

“LEED” • Zero Net Energy “ZNE” (not a specific rating, but

commonly used reference)


• Site Development • Bicycles, EV, Erosion Control, Light Pollution

• Energy Efficiency • Energy Efficiency, Building Performance

• Water Efficiency and Conservation • Reductions, metering

• Material Conservation and Resource Efficiency • Moisture management, Construction waste, Maintenance,

Commissioning, Basis of Design (BOD) • Environmental Quality

• Pollutant Control (indoor and outdoor), VOC, CO2 monitoring, Acoustics

Title 24 / Cal Green / Energy Code Title 24 is actually a broad code revision to the various “model” codes (such as the International Building code (IBC)). Title 24 includes the California Green Building Standards Code, commonly referred to as Cal Green and the California Energy Code


• Lighting controls (for daylight), occupancy sensors and automatic dimming

• Electrical power metering and management • Solar-ready requirement (pathways and structural) • Commissioning now mandatory for larger projects • Almost double building wall assembly efficiency • Economizers on mechanical equipment • Sustainable site measures

Title 24 / Cal Green / Energy Code Historical Comparison – 2010-2013


• LEED is a rating system established by the U.S Green Building Council (USGBC)

• USGBC was created in 1993 • LEED Green Building Rating System was released in

March, 2000 • Originally intended for new or renovated

commercial buildings, but has since expanded to accommodate unique building types

Leadership in Energy & Environmental Design (LEED) History


• Sustainable Sites • Stormwater, heat islands, transportation, joint use

• Water Efficiency • Landscaping, use reduction, wastewater

• Energy and Atmosphere • Energy – reductions, generation and purchasing

• Materials and Resources • Reuse, recycled content, renewable, regional

• Indoor Environmental Quality • Thermal comfort, acoustics, daylighting, controllability

• Innovation and Design Process • Specific to individual credits

• Regional Priority Credits

Leadership in Energy & Environmental Design (LEED) Overview


Collaborative for High Performance Schools (CHPS) History

• Started in 1999 in California • First CHPS Criteria published in 2001 • Has since become a national organization • Organization prides itself on improving the

classroom environment to promote learning • High Performance Incentive (HPI) grants were

available through OPSC for a period of time during the last statewide bond and were based on CHPS

“Making every school an ideal place to learn”


Collaborative for High Performance Schools (CHPS) Overview

• Integration and Innovation • Commitment, Education, Reporting, Crime Prevention

• Indoor Environmental Quality • Air quality, Acoustics, Daylight, Views

• Energy • Energy – reductions, generation

• Water • Reduced use, wastewater, landscaping, Demonstration

• Sites • Location, Joint-use, transportation

• Materials and Waste Management • Reuse, recycled content, renewable, regional

• Operations and Metrics • Maintenance, power purchasing, training

“Making every school an ideal place to learn”

CHPS Designed or

CHPS Verified


Zero Net Energy (ZNE) Overview

Strategies • Energy Systems Conservation

• Lighting, Power, HVAC • Building Efficiency

• Reduce need through orientation and envelope design • Energy Generation

• Photovoltaic, geo-thermal, wind

Goals • Generate as much energy as is consumed over a

year (grid-neutral) • Grid-independent


City of Albany Green Building Program

• Using sun, wind and landscape to the building’s advantage for natural heating, cooling and daylighting

• Landscaping with native plants and using water efficiently • Building quality, durable structures • Insulating well and ventilating properly • Incorporating salvaged, recycled and sustainably harvested

materials. • Maintaining healthy indoor air quality with appropriate

building techniques and materials • Using energy-efficient and water-saving appliances and

fixtures • Reducing and recycling construction waste

This program requires the submission of LEED New Construction and Bay Friendly Landscaping checklists


HOW MANY ARE THERE CHPS - Designed/Verified projects in California • 122 CHPS Designed • 12 CHPS Verified • 250 (+/-) HPI

LEED for Schools - Certified Projects in California • 49 total • Includes both public and private schools

ZNE - Certified Projects in California • 5 total • Includes only 1 building at Sacred Heart K-8 School


SUSTAINABLE DESIGN STRATEGIES STONEHURST CHILD DEVELOPMENT CENTER


Water Conservation – Stormwater Treatment


Daylight and Energy Modeling


Building Orientation


Sun Shades and Living Roofs Korematsu Middle School


Energy Generation MLK Jr. Middle School


• Buildings built to code “Title 24” are by nature much more sustainable than buildings built just 10 years ago.

• To use a rating system or to get to ZNE will usually increase design or construction costs or both.

• Depending on the targeted systems and points, costs can be minor or can be extreme.

• An increase in cost for a sustainable building that can be “certified” is an additional 5-15% in total project cost (hard and soft costs)

• Many factors affect the cost of a designed/verified/certified building

POTENTIAL COSTS


Bicycle Parking (no additional cost): • T24 – Required • CHPS – Prerequisite • LEED – 1 Point

Site Master Planning (minor design cost at O.V. - Higher at S.G.): • T24 – Not required • CHPS – 1 point • LEED – 1 point

Daylighting (costs increase with the points): • T24 – Automatic lighting controls required in “daylit” zones • CHPS – 1-7 (20fc-50fc avg. for 75% classroom area) • LEED – 1-3 points (55%-90% daylight autonomy)

POTENTIAL COSTS


Increased Energy Efficiency and Generation:

• T24 – Required minimum

• CHPS • Prerequisite to increase efficiency 5% beyond T24 • From 1-40 points available for additional conservation

(additional 5% savings beyond prerequisite gets 1 point, 100% savings (ZNE) gets 40 points)

• LEED • Prerequisite to increase efficiency 5% beyond

ANSI/ASHRAE/IESNA Standard 90.1-2010 • From 2-19 points available for additional conservation (16

points for increase of 40% efficiency and 3 points for renewable energy)

POTENTIAL COSTS


Opportunities – Ocean View

Main Entry

Section at Library

Greening of walls and roof creates more thermal mass

Sun Shades and Light Shelves provide better/controlled daylighting

Strategic placement of trees helps control heat gain


Opportunities – Ocean View

Drought-tolerant / native landscaping

Catchments for on site stormwater treatment

Photovoltaic panels on rooftops


SUMMARY

• Sustainability has varying definitions and covers many aspects of a building

• Title 24 as a base provides a sustainable building

• Rating systems to increase sustainability are CHPS or LEED for Schools

• ZNE is rare and attainability is currently unknown

• Some sustainable features that can get rating points are no additional cost

• Additional costs for a certified building range from 5-15%


QUESTIONS

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