commercial applications for daylighting
DESCRIPTION
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.TRANSCRIPT
![Page 1: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/1.jpg)
OPTIMIZING DAYLIGHTING
STRATEGIES
PRESENTED BY:Sandy Houck, LEED AP, LC
August 18, 2011
Improving the performance and value of your buildings
![Page 2: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/2.jpg)
GOALS MAKE DAYLIGHTING A PRIORITY IN DESIGN
START EARLY IN THE DESIGN PROCESS
PROVIDE AUTOMATIC DAYLIGHTING CONTROLS
PROVIDE COMMISSIONING & EDUCATE OCCUPANTS
![Page 3: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/3.jpg)
DAYLIGHTING FOR
TASK-ORIENTED SPACES
PHO
TOCR
EDIT
: S
QU
ARE1
SUNLIT SPACE DAYLIT SPACE
![Page 4: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/4.jpg)
WHAT WE DON’T WANT TO CREATE…
A SAUNA WHERE PEOPLE HAVE TO WORK
PHOTO CREDIT: DAYLIGHTING COLLABORATIVE
![Page 5: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/5.jpg)
IT’S NOT EFFECTIVE
DAYLIGHT UNLESS THE
ELECTRIC LIGHTS
ARE OFF.
WHAT WE DON’T WANT TO CREATE…
A DOUBLE-LIT SPACE
![Page 6: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/6.jpg)
DAYLIGHT AVAILABILITY
SOURCE: ILLUMINATING ENGINEERING SOCIETY NORTH AMERICA
DIRECT SUN
DIFFUSE SKY LIGHT
REFLECTED LIGHT
![Page 7: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/7.jpg)
AESTHETIC QUALITIES OF DAYLIGHTING
DAYLIGHT IS DYNAMIC
FULL SPECTRUM
PHOTO CREDIT: GREENSOURCE MAGAZINE
PHOTO CREDIT: LRC DAYLIGHTING DIVIDENDS
![Page 8: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/8.jpg)
ENERGY EFFICIENT QUALITIES OFDAYLIGHTING
SOURCE: HIGH TECH HIGH CHULA VISTA
EFFICACY OF LIGHT SOURCE (LUMENS/WATT) INCANDESCENT (16-40 LUMENS/WATT) FLUORESCENT (90-100 LUMENS/WATT) DIFFUSE SKY LIGHT (125-150 LUMENS/WATT)
![Page 9: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/9.jpg)
BEST BUILDING FOOTPRINTS FORDAYLIGHTING
IESNA RP-5
LONG AND NARROWFOOTPRINT
ORIENT LONG AXISRUNNING EAST/WEST
HIGH PERCENT OFPERIMETER AREA
![Page 10: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/10.jpg)
SOURCE: IESNA
ONE-STORYBUILDINGS
TOP FLOOR OFMULTI-STORYBUILDINGS
REPRESENTS
~60% OFCOMMERCIAL
FLOOR SPACE
TOPLIGHTING-OPENINGS IN THE ROOF PLANE-
![Page 11: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/11.jpg)
CHAPARRAL HIGH SCHOOL
SAWTOOTHS, MONITORS & CLERESTORIES
DELIVERS DAYLIGHTDEEPER INTO SPACE
ORIENTATION HASAN IMPACT
CLEAR GLAZING(WHEN NORTH-FACING)
MORE CHALLENGINGTO DARKEN SPACE
![Page 12: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/12.jpg)
SOURCE: VELUX
3% - 5% SKYLIGHT
TOFLOORAREARATIO
SKYLIGHTS
![Page 13: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/13.jpg)
SOURCE: SOLATUBE
TUBULAR DAYLIGHTING DEVICES
![Page 14: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/14.jpg)
USEFUL ON ANY LEVEL OFA BUILDING
PHOTO CREDIT: KALWALL
PHOTO CREDIT: LRC DAYLIGHT DIVIDENDS
SIDELIGHTING -VERTICAL GLAZING-
![Page 15: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/15.jpg)
SIDELIGHTING GLAZING LOCATIONS
EXAMPLE BUILDING IN LOS ANGELES
![Page 16: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/16.jpg)
HIGH PERFORMANCE GLAZING
Visible Light Transmittance (VLT) Solar Heat Gain Coefficient (SHGC)
SOURCE: PPG
![Page 17: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/17.jpg)
HIGH PERFORMANCE GLAZING
LIGHT TO SOLAR GAIN FACTOR
LSG FACTOR = VLT/SHGC
SOURCE: PPG
![Page 18: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/18.jpg)
IMPORTANCE OF TYPE & SIZEOF GLAZING
![Page 19: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/19.jpg)
EXTERIOR SHADING STRATEGIES
NORTHERN HEMISPHERE
![Page 20: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/20.jpg)
OVERHANGS (SOUTH)
SAN DIEGO CLIMATE – ALSO CONSIDER SHADING ATEQUINOX (SEPTEMBER 21)
SOURCE: WHOLE BUILDING DESIGN GUIDE
![Page 21: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/21.jpg)
SOURCE: ILLUMINATING ENGINEERING SOCIETY NORTH AMERICA
FINS (EAST & WEST)
![Page 22: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/22.jpg)
EXTERIOR SHADING STRATEGIES
SCREEN
SOURCE: NY TIMES BUILDING
SOURCE: NY TIMES BUILDING
![Page 23: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/23.jpg)
EXTERIOR SHADING STRATEGIES
WATER LIFE MUSEUM, HEMET
SAN ELIJO LAGOON VISITOR’S CENTER
![Page 24: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/24.jpg)
LIGHT SHELF (SOUTH)
Photo
Cre
dit:
Ash
Cre
ek
Ele
men
tary
, M
onm
outh
, O
R b
y BO
ORA A
rchitec
ts
SOURCE: ADVANCED LIGHTING GUIDELINES
![Page 25: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/25.jpg)
INTERIOR SHADING STRATEGIES
Photo Credit: MechoShade
VIEW-PRESERVING
FABRIC SHADES
![Page 26: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/26.jpg)
INTERIOR SHADING STRATEGIES
ARCHITECTS HANNAH GABRIEL WELLS HEADQUARTERS
BLACKOUT FABRIC SHADES
ARCHITECTS HANNAH GABRIEL WELLS HEADQUARTERS
![Page 27: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/27.jpg)
INTERIOR SHADING STRATEGIES
BLINDS
(NOTICE SEPARATE
CONTROL OF VIEW &DAYLIGHT SECTION OF
WINDOW)
![Page 28: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/28.jpg)
INTERIOR SHADING STRATEGIES
HORIZONTAL BLINDS
(SOUTH FAÇADE)
VERTICAL BLINDS
(EAST & WEST FAÇADE)
![Page 29: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/29.jpg)
INTERIOR DESIGN TO OPTIMIZEDAYLIGHTING
LIGHT-COLORED SURFACES
AVOID ‘CAVE’ EFFECT WITHLIGHT-COLORED CEILING
![Page 30: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/30.jpg)
DESIGN ELECTRIC LIGHTING FORDAYLIT SPACES
TASK/AMBIENTDESIGN
DIRECT/INDIRECTLIGHTING
ORIENT PARALLEL TOWINDOW
LAMP COLORTEMPERATURE
(MIN. 4100K)
![Page 31: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/31.jpg)
ZONE ELECTRIC LIGHTING FOR
DAYLIGHT RESPONSIVE CONTROL
IESNA RP-5
![Page 32: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/32.jpg)
THE NEED FOR AUTOMATIC CONTROLS
![Page 33: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/33.jpg)
PROVIDE DAYLIGHT RESPONSIVECONTROLS FOR ELECTRIC LIGHTING
Credit: LC&D, Lutron & WattStopper
![Page 34: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/34.jpg)
![Page 35: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/35.jpg)
COMMISSIONING & MAINTENANCE
OF
AUTOMATIC CONTROLS
SAN ELIJO LAGOON VISITOR’S CENTER
![Page 36: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/36.jpg)
COMMISSIONING & MAINTENANCE OF AUTOMATIC CONTROLS
NOT A DAYLIT SPACE . . . YET
A DAYLIT SPACE
![Page 37: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/37.jpg)
TITLE 24 2008 & DAYLIGHTING
![Page 38: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/38.jpg)
SIDELIGHTING
SO
URCE:
CA T
ITLE
24 N
ON
RES M
AN
UAL
TITLE 24 2008 - DAYLIT ZONES
![Page 39: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/39.jpg)
TOPLIGHTING
SO
URCE:
CA T
ITLE
24 N
ON
RES M
AN
UAL
TITLE 24 2008 - DAYLIT ZONES
![Page 40: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/40.jpg)
TITLE 24 2008 – CONTROL CREDITS
![Page 41: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/41.jpg)
![Page 42: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/42.jpg)
LEED & DAYLIGHTING
INDOOR ENVIRONMENTAL QUALITY CATEGORY
IEQC8.1 – DAYLIGHT
-PROVIDE ADEQUATE DAYLIGHT FOR 75% OFREGULARLY OCCUPIED SPACES
MED IMPACT – LEED GOLD CERTIFIED
SDCCD WEST CITY CENTER – LEED GOLD CERTIFIED
![Page 43: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/43.jpg)
LEED DAYLIGHT CREDIT IEQC8.1
CALCULATION METHODS
LEED v2
Option 1
Glazing Factor Calculation
Option 2
Daylight Simulation
Model
Option 3
Daylight Measurement
LEED v3
Option 1
Simulation
Option 2
Prescriptive
Option 3
Measurement
Option 4
Combination
![Page 44: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/44.jpg)
LEED DAYLIGHT CREDIT IEQC8.1
PRESCRIPTIVE CALCULATIONS
LEED v2
Option 1
Glazing Factor Calculation
Option 2
Daylight Simulation
Model
Option 3
Daylight Measurement
LEED v3
Option 1
Simulation
Option 2
Prescriptive
Option 3
Measurement
Option 4
Combination
![Page 45: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/45.jpg)
V2.2
ACHIEVE A MINIMUM 2% GLAZING FACTOR IN ATLEAST 75% OF ALLREGULARLY OCCUPIEDSPACES.
RELATIVELY EASY TOCOMPLY
BASED ON GEOMETRY & GLAZING VLT ONLY
V3 (2009)
FORMULA BASED ON
GEOMETRY AND
GLAZING VLT
ACHIEVABLE IN
VERY LIMITED
TYPES OF SPACES
LEED PRESCRIPTIVE CALCULATIONS
![Page 46: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/46.jpg)
LEED v2
Option 1
Glazing Factor Calculation
Option 2
Daylight Simulation
Model
Option 3
Daylight Measurement
LEED v3
Option 1
Simulation
Option 2
Prescriptive
Option 3
Measurement
Option 4
Combination
LEED DAYLIGHT CREDIT IEQC8.1
PERFORMANCE CALCULATIONS
![Page 47: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/47.jpg)
V2.2
COMPUTER SIMULATIONNOON ON EQUINOX
(SEPT. 21)
MINIMUM ILLUMINANCE25FC
V3 (2009)
COMPUTER SIMULATION
9AM AND 3PM ONEQUINOX
(SEPT. 21)
10FC < ILLUMINANCE < 500FC
LEED PERFORMANCE CALCULATIONS
![Page 48: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/48.jpg)
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
![Page 49: Commercial Applications for Daylighting](https://reader034.vdocument.in/reader034/viewer/2022052523/5551ac63b4c905bb708b477e/html5/thumbnails/49.jpg)
OPTIMIZING DAYLIGHTING STRATEGIES
PRESENTED BY:
Sandy Houck, LEED AP, [email protected]
August 18, 2011
BRUMMITT ENERGY ASSOCIATES , INC .Helping people achieve very energy efficient buildings