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Commercial Applications for Daylighting
 

Commercial Applications for Daylighting

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This workshop will provide a general overview of daylighting strategies in commercial buildings, emphasizing the importance of integrating daylighting with energy-efficient lighting systems and ...

This workshop will provide a general overview of daylighting strategies in commercial buildings, emphasizing the importance of integrating daylighting with energy-efficient lighting systems and controls. We will also explore how daylighting is achieved from a LEED standpoint and how CA's Title 24 addresses daylighting.

Sandy Houck, LC, LEED AP of Brummitt Energy Associates will present the benefits of daylighting strategies for your commercial project.

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    Commercial Applications for Daylighting Commercial Applications for Daylighting Presentation Transcript

    • OPTIMIZING DAYLIGHTING STRATEGIES PRESENTED BY: Sandy Houck, LEED AP, LC August 18, 2011 Improving the performance and value of your buildings
    • GOALS MAKE DAYLIGHTING A PRIORITY IN DESIGN START EARLY IN THE DESIGN PROCESS PROVIDE AUTOMATIC DAYLIGHTING CONTROLS PROVIDE COMMISSIONING & EDUCATE OCCUPANTS
    • DAYLIGHTING FOR TASK-ORIENTED SPACES PHOTO CREDIT: SQUARE1 SUNLIT SPACE DAYLIT SPACE
    • WHAT WE DON’T WANT TO CREATE… A SAUNA WHERE PEOPLE HAVE TO WORK PHOTO CREDIT: DAYLIGHTING COLLABORATIVE
    • WHAT WE DON’T WANT TO CREATE… A DOUBLE-LIT SPACEIT’S NOT EFFECTIVEDAYLIGHT UNLESS THEELECTRIC LIGHTSARE OFF.
    • DAYLIGHT AVAILABILITY  DIRECT SUN  DIFFUSE SKY LIGHT  REFLECTED LIGHT SOURCE: ILLUMINATING ENGINEERING SOCIETY NORTH AMERICA
    • AESTHETIC QUALITIES OF DAYLIGHTING  DAYLIGHT IS DYNAMIC  FULL SPECTRUM PHOTO CREDIT: GREENSOURCE MAGAZINEPHOTO CREDIT: LRC DAYLIGHTING DIVIDENDS
    • ENERGY EFFICIENT QUALITIES OF DAYLIGHTINGEFFICACY OF LIGHT SOURCE (LUMENS/WATT) INCANDESCENT (16-40 LUMENS/WATT) FLUORESCENT (90-100 LUMENS/WATT) DIFFUSE SKY LIGHT (125-150 LUMENS/WATT) SOURCE: HIGH TECH HIGH CHULA VISTA
    • BEST BUILDING FOOTPRINTS FOR DAYLIGHTING LONG AND NARROW FOOTPRINT ORIENT LONG AXIS RUNNING EAST/WEST HIGH PERCENT OF PERIMETER AREA IESNA RP-5
    • TOPLIGHTING -OPENINGS IN THE ROOF PLANE- ONE-STORY BUILDINGS TOP FLOOR OF MULTI-STORY BUILDINGS REPRESENTS ~60% OF SOURCE: IESNA COMMERCIAL FLOOR SPACE
    • SAWTOOTHS, MONITORS & CLERESTORIES  DELIVERS DAYLIGHT DEEPER INTO SPACE  ORIENTATION HAS AN IMPACT  CLEAR GLAZING (WHEN NORTH- FACING)CHAPARRAL HIGH SCHOOL  MORE CHALLENGING TO DARKEN SPACE
    • SKYLIGHTS 3% - 5% SKYLIGHT TO FLOOR AREA RATIOSOURCE: VELUX
    • TUBULAR DAYLIGHTING DEVICESSOURCE: SOLATUBE
    • SIDELIGHTING -VERTICAL GLAZING- PHOTO CREDIT: KALWALL USEFUL ON ANY LEVEL OF A BUILDING PHOTO CREDIT: LRC DAYLIGHT DIVIDENDS
    • SIDELIGHTING GLAZING LOCATIONS EXAMPLE BUILDING IN LOS ANGELES
    • HIGH PERFORMANCE GLAZING Visible Light Transmittance (VLT) Solar Heat Gain Coefficient (SHGC)SOURCE: PPG
    • HIGH PERFORMANCE GLAZING LIGHT TO SOLAR GAIN FACTOR LSG FACTOR = VLT/SHGCSOURCE: PPG
    • IMPORTANCE OF TYPE & SIZE OF GLAZING
    • EXTERIOR SHADING STRATEGIES N ORTHERN H EM I SP HERE
    • OVERHANGS (SOUTH)SOURCE: WHOLE BUILDING DESIGN GUIDE SAN DIEGO CLIMATE – ALSO CONSIDER SHADING AT EQUINOX (SEPTEMBER 21)
    • FINS (EAST & WEST)SOURCE: ILLUMINATING ENGINEERING SOCIETY NORTH AMERICA
    • EXTERIOR SHADING STRATEGIES SCREENSOURCE: NY TIMES BUILDING SOURCE: NY TIMES BUILDING
    • EXTERIOR SHADING STRATEGIES SAN ELIJO LAGOON VISITOR’S CENTERWATER LIFE MUSEUM, HEMET
    • SOURCE: ADVANCED LIGHTING GUIDELINES LIGHT SHELF (SOUTH)Photo Credit: Ash Creek Elementary, Monmouth,OR by BOORA Architects
    • INTERIOR SHADING STRATEGIESPhoto Credit: MechoShade VIEW-PRESERVING FABRIC SHADES
    • INTERIOR SHADING STRATEGIESBLACKOUT FABRIC SHADES ARCHITECTS HANNAH GABRIEL WELLS HEADQUARTERS ARCHITECTS HANNAH GABRIEL WELLS HEADQUARTERS
    • INTERIOR SHADING STRATEGIES BLINDS (NOTICE SEPARATE CONTROL OF VIEW & DAYLIGHT SECTION OF WINDOW)
    • INTERIOR SHADING STRATEGIES VERTICAL BLINDS (EAST & WEST FAÇADE)HORIZONTAL BLINDS (SOUTH FAÇADE)
    • INTERIOR DESIGN TO OPTIMIZE DAYLIGHTING LIGHT-COLORED SURFACES AVOID ‘CAVE’ EFFECT WITH LIGHT-COLORED CEILING
    • DESIGN ELECTRIC LIGHTING FOR DAYLIT SPACES TASK/AMBIENT DESIGN DIRECT/INDIRECT LIGHTING ORIENT PARALLEL TO WINDOW LAMP COLOR TEMPERATURE (MIN. 4100K)
    • ZONE ELECTRIC LIGHTING FOR DAYLIGHT RESPONSIVE CONTROLIESNA RP-5
    • THE NEED FOR AUTOMATIC CONTROLS
    • PROVIDE DAYLIGHT RESPONSIVECONTROLS FOR ELECTRIC LIGHTING Credit: LC&D, Lutron & WattStopper
    • COMMISSIONING & MAINTENANCE OF AUTOMATIC CONTROLS SAN ELIJO LAGOON VISITOR’S CENTER
    • COMMISSIONING & MAINTENANCE OF AUTOMATIC CONTROLSA DAYLIT SPACE NOT A DAYLIT SPACE . . . YET
    • TITLE 24 2008 & DAYLIGHTING
    • TITLE 24 2008 - DAYLIT ZONESSIDELIGHTING SOURCE: CA TITLE24 NONRES MANUAL
    • TITLE 24 2008 - DAYLIT ZONESTOPLIGHTING SOURCE: CA TITLE24 NONRES MANUAL
    • TITLE 24 2008 – CONTROL CREDITS
    • LEED & DAYLIGHTING INDOOR ENVIRONMENTAL QUALITY CATEGORY IEQC8.1 – DAYLIGHT -PROVIDE ADEQUATE DAYLIGHT FOR 75% OF REGULARLY OCCUPIED SPACESMED IMPACT – LEED GOLD CERTIFIED SDCCD WEST CITY CENTER – LEED GOLD CERTIFIED
    • LEED DAYLIGHT CREDIT IEQC8.1 CALCULATION METHODS LEED v2 LEED v3 Option 1 Option 1 Glazing Factor Simulation Calculation Option 2 Daylight Option 2 Simulation Prescriptive Model Option 3 Option 3 Daylight Measurement Measurement Option 4 Combination
    • LEED DAYLIGHT CREDIT IEQC8.1 PRESCRIPTIVE CALCULATIONS LEED v2 LEED v3 Option 1 Option 1 Glazing Factor Simulation Calculation Option 2 Daylight Option 2 Simulation Prescriptive Model Option 3 Option 3 Daylight Measurement Measurement Option 4 Combination
    • LEED PRESCRIPTIVE CALCULATIONS V2.2 V3 (2009)  ACHIEVE A MINIMUM 2%  FORMULA BASED ON GLAZING FACTOR IN AT GEOMETRY AND LEAST 75% OF ALL GLAZING VLT REGULARLY OCCUPIED SPACES.  ACHIEVABLE IN VERY LIMITED  RELATIVELY EASY TO COMPLY TYPES OF SPACES  BASED ON GEOMETRY & GLAZING VLT ONLY
    • LEED DAYLIGHT CREDIT IEQC8.1 PERFORMANCE CALCULATIONS LEED v2 LEED v3 Option 1 Option 1 Glazing Factor Simulation Calculation Option 2 Daylight Option 2 Simulation Prescriptive Model Option 3 Option 3 Daylight Measurement Measurement Option 4 Combination
    • LEED PERFORMANCE CALCULATIONS V2.2 V3 (2009)  COMPUTER SIMULATION  COMPUTER SIMULATION NOON ON EQUINOX 9AM AND 3PM ON (SEPT. 21) EQUINOX (SEPT. 21)  MINIMUM ILLUMINANCE 25FC  10FC < ILLUMINANCE < 500FC
    • TOP 4 THINGS TO REMEMBER . . . 1. MAKE DAYLIGHTING A PRIORITY IN YOUR PROJECT 2. START EARLY IN THE DESIGN 3. PROVIDE AUTOMATIC DAYLIGHTING CONTROLS 4. COMMISSION THE SYSTEM & EDUCATE THE USERS
    • OPTIMIZING DAYLIGHTING STRATEGIES PRESENTED BY: Sandy Houck, LEED AP, LC shouck@brummitt.com August 18, 2011 B R U M M I TT E N E R G Y A S S O C I AT E S , I N C . Helping people achieve very energy efficient buildings