Achieving Sustainable Design Goals with Achieving
Sustainable Design Goals with
Tubular Daylighting Devices
Learning Objectives
 Describe why daylight is an important component of sustainable design
 Compare and contrast the different daylighting strategies available
 Describe the minimum requirements for achieving LEED with daylighting and cite the ways that tubular daylighting
devices can help projects earn LEED certification
devices can help projects earn LEED certification.
 List strategies others have used to incorporate optical daylighting technologies to reach their LEED and sustainable design goals
 Explain the importance of daylighting in net‐zero energy b ld
buildings
Learning Objectives
 Describe why daylight is an important component of sustainable design
 Compare and contrast the different daylighting strategies available
 Describe the minimum requirements for achieving LEED with daylighting and cite the ways that tubular daylighting
devices can help projects earn LEED certification
devices can help projects earn LEED certification
 List strategies others have used to incorporate optical daylighting technologies to reach their LEED and sustainable design goals
 Explain the importance of daylighting in net‐zero energy b ld
buildings
Human Performance
Human Performance
Staff Productivity
Student Test Scores
ADD & Depression
Building Performance
Energy Consumption
CO2 Emissions
Learning Objectives
 Describe why daylight is an important component of sustainable design
 Compare and contrast the different daylighting strategies available
 Describe the minimum requirements for achieving LEED with daylighting and cite the ways that tubular daylighting
devices can help projects earn LEED certification
devices can help projects earn LEED certification
 List strategies others have used to incorporate optical daylighting technologies to reach their LEED and sustainable design goals
 Explain the importance of daylighting in net‐zero energy b ld
buildings
Daylighting Strategies
Side Lighting
(Windows)
Benefits:

View of the World

Design Feature

Reduce Electrical Lighting
Limitations:

Orientation Dependent
p

Perimeter Limitation

Shifting Light Patterns

Inconsistent Light Levels

Glare

Thermal Performance
Daylighting Strategies
Top Lighting
(Traditional Skylights)
Benefits:

Independent of Building Orientation

Daylight Deeper into Building

Reduce Electrical
Reduce Electrical Lighting
Limitations:

Roof Structure Impact

Top Floor Limited

Complex Architectural
Complex Architectural Integration

Shifting Light Patterns

Inconsistent light Levels

Glare

Thermal Performance
Thermal Performance
Daylighting Strategies
Tubular Daylighting Devices (TDD’s)
Benefits:
 Highly consistent and controllable
 Daylight Any Space in Daylight Any Space in
Nearly Any Climate
 Minimal Roof Structure Impact
 Superior Thermal Performance
 Endless possibilities with highly flexible, g y
,
modular system
1
Capture Zone
Transfer Zone
2
1
2
Delivery Zone
3
3
Tubular Daylighting Device
Light Output for Dayight Entering TDD at a 40° Solar Altitude Angle
Non‐Metalized Film 99.7% Reflectance
Enhanced Silver
98% Reflectance
Enhanced Aluminum
95% Reflectance
Corrugated/Flexible
84% Reflectance
Transfer Zone | Light Output
Learning Objectives
 Describe why daylight is an important component of sustainable design
 Compare and contrast the different daylighting strategies available
 Describe the minimum requirements for achieving LEED with daylighting and cite the ways that tubular daylighting
devices can help projects earn LEED certification
devices can help projects earn LEED certification
 List strategies others have used to incorporate optical daylighting technologies to reach their LEED and sustainable design goals
 Explain the importance of daylighting in net‐zero energy b ld
buildings
Two different
versions
ersions of
LEED are
LEED® rating systems
g y
currently
available for
projects.
Go to
www usgbc
www.usgbc
.org/LEED
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*For more information visit www.usgbc.org
g
g
for more info.
Tubular Daylighting Devices can Contribute to: (Each project and TDD assembly is unique. Discuss options with the LEED project team.)
Sustainable Sites: Light Pollution Reduction
Energy & Atmosphere Prereq.: Min. Energy Performance
Energy and Atmosphere: Optimize Energy Performance
Materials and Resources
Indoor Environmental Quality: Daylight
Innovation
i
Sustainable Sites
Li h P ll i R d i
Light Pollution Reduction
TDD with Dimming Device
Energy & Atmosphere
gy
p
Baseline for Sustainable Design with D li hti
Daylighting
D li ht i 75% f R l l O
Daylight min. 75% of Regularly Occupied Floor Area
i d Fl
A
Tubular Daylighting
Tubular
Daylighting Devices Devices
Allow for:
 Ideal levels of natural light
Id l l l f
l li h
 Increased daylight h
harvesting hours based on i h
b d
low angle light collection capabilities
biliti
Tubular Daylighting Devices were used to exceed the minimum requirements. 100% of the office floor plate is fully daylit.
Tubular Daylighting Devices allow for daylighting multiple stories to achieve 75% minimum daylight requirements.
Changes to Daylighting Requirements
Changes to Daylighting Requirements
Prescriptive method p
of showing Daylight compliance is no longer an option in LEEDv4
in LEEDv4
Changes to Daylighting Requirements
Changes to Daylighting Requirements
Daylight Simulation Option y g
p
– LEED 2009
Changed criteria from Noon to 9am AND 3pm, and from the minimum f
from 25 foot candles to 25 f t
dl t
10 foot candles. Changes to Daylighting Requirements
Changes to Daylighting Requirements
Occupant comfort and productivity (not building energy) really drives annual system performance.
ll d i
l
f
Because daylight illuminance
Because
daylight illuminance levels are dynamic, the levels are dynamic, the
performance of daylighting solutions is best assessed over time on an hourly, annual basis, instead of a single, point‐in‐time calculation.
The sDA
Th
DA and ASE metrics account for the for daily and d ASE
ti
t f th f d il
d
seasonal variations of daylighting system performance due to occupancy schedules and climatic conditions
due to occupancy schedules and climatic conditions using TMY2 data.
LEED v4 –
Shift from Point-in-time Analysis to Annual Dynamic Modeling
Spatial Daylight Autonomy (sDA)
• The sDA metric attempts to answers the question: “How much of a
certain space or building is adequately daylit?’
• sDA “results” are based upon basic thresholds of target illuminance level
and percentage of occupied hours that a space is fully daylit for general
analysis of daylight sufficiency.
Annual Sunlight Exposure (ASE)
• The Annual Sunlight Exposure (ASE) metric describes the potential of
glare from direct sunlight exposure on the task plane.
• Not a concern for high performance TDDs, since ASE = 0
29
LEED Points Contribution Matrix
LEED Points Contribution Matrix
 Daylighting strategies with tubular daylighting devices offer an innovative way to achieve LEED status by contributing to the achievement of LEED milestones across all LEED rating systems
 Request documentation to help understand the LEED impact on your i
project
Innovation in Design credit
g
ID Credit 3: The School as a Teaching Tool
g
Examples of Daylighting Curriculum to Achieve ID Credit 3
 Curriculum based on meeting energy calculations because of lights being turned off
 Discussing the theory of light and color mixing using prisms created by product diffusers
i
db
d
diff
 Labeling and examining the product used to transfer the daylight in the classroom
 Using a whole building approach by exposing the Ui
h l b ildi
hb
i
h
construction of the building and how the daylighting
product was installed.
 Explaining the concepts of Solstice and Equinox and Explaining the concepts of Solstice and Equinox and
the Earth’s rotation around the sun based on the presence of daylight.
Learning Objectives
 Describe why daylight is an important component of sustainable esign
 Compare and contrast the different daylighting strategies available
 Describe the minimum requirements for achieving LEED with daylighting and cite the ways that tubular daylighting
devices can help projects earn LEED certification
devices can help projects earn LEED certification.
 List strategies others have used to incorporate optical daylighting technologies to reach their LEED and sustainable design goals
 Explain the importance of daylighting in net‐zero energy b ld
buildings
Strategies for LEED for Existing Buildings
 Promotes the adaptive re‐use of buildings and items
 Provide daylight to enhance the environment of existing buildings  Tubular Daylighting Devices allow for:  Transferring light longer distances
 Navigating around obstructions in the plenum space
LEED –EBOM 2009
Si
Siemens Building Technologies
B ildi T h l i
Ad ti R
Adaptive Reuse of Existing Skylights
f E i ti Sk li ht
LEED –EBOM 2009
REI – Recreational Equipment, Inc.
REI Recreational Equipment Inc
Client: REI, Recreational Client:
REI Recreational
Equipment Inc. Locations: Boulder, CO & Round Rock, TX
Architect: Gensler
LEED –EBOM 2009
REI – Recreational Equipment, Inc.
REI –
Recreational Equipment Inc
LEED –EBOM 2009
REI – Recreational Equipment, Inc.
REI Recreational Equipment Inc
Strategies for LEED for Core and Shell
 Covers base building elements
 Encourages developers to implement green strategies to benefit future tenants.
 Modular nature of Tubular Daylighting Devices
allows for ease of future space adaptation
LEED–CS 2009
Office Park Warehouse Space
LEED–CS 2009
SSubway® Eco‐Store
b
® E St SM
Client: Subway
Architect: Toppe Consultants, Inc.
Location: Kissimmee, FL
LEED‐Certified, 2009
Strategies for LEED for Schools
 Recognizes the unique natural of the design and construction of K‐12 schools.
 Addresses issues such as Addresses issues such as
 Classroom acoustics
 Master planning
Master planning
 Mold prevention
Environmental site assessment
 Environmental site assessment.
 Tubular Daylighting Devices provide many benefits for school environments
Strategies for LEED for Schools –
Delivering Consistent, Controlled Daylight to Any Floor
LEED‐S 2009
Cherokee Central School
Cherokee Central School
Client: Eastern Band of Cherokee Indians
Architect: Padgett & Freeman Architects, P.A.
Site Size: 50 acres
Site Size: 50 acres
Building Size: 471,000 sf.
LEED Silver, 2009
LEED‐S 2009
Cherokee Central School
Proving Compliance
• Side Lighting & Clerestory Lighting: 3D Simulation Models in Datacad; analyzed with AGI 32
in Datacad; analyzed with AGI 32
• Tubular Daylighting Devices: Simulation Modeling with IES Files & TMY2 Data
LEED‐S 2009
Cherokee Central School
Cherokee Central School Impact on Student Performance
• Student performance can be enhanced 7‐18% when a classroom is well lit with daylight.
Strategies for LEED for New Construction
 Designed to guide and distinguish high‐performance Designed to guide and distinguish high performance
commercial and institutional projects including:
 Office Buildings
Office Buildings
 Government Buildings
 Recreational Facilities
Recreational Facilities
 Manufacturing Plants
 Laboratories
 Tubular Daylighting Devices one of the most visible sustainable feature to add to a building
sustainable feature to add to a building
LEED‐NC 2009
Qualcomm W Campus
Qualcomm –
W Campus
Client: Qualcomm li
l
Incorporated
Architect: Delawie Wilkes Architect: Delawie
Wilkes
Rodrigues Barker Site Size: 10.68 Acres
Building Size: 909,170 sf.
• Three Building Campus
LEED Gold, 2007
LEED-NC 200
Qualcomm – W Campus
• Abundant
Abundant use of daylighting, daylight controls, high efficiency use of daylighting, daylight controls, high efficiency
lighting fixtures and motion sensors
• Surpassed California Title 24 Standards by 15.3%
LEED-NC 2009
Qualcomm ‐ W Campus
Tubular Daylighting Devices (TDD
Tubular
Daylighting Devices (TDD’s)
s) were used instead of traditional were used instead of traditional
skylights because they could be extended above the roof where mechanical systems cast shadows
Strategies for LEED for Commercial Interiors
 Certifies high‐performance green interiors that are :
 Healthy, productive places to work
Healthy productive places to work
 Less costly to operate and maintain
 Have a reduced environmental impact
Have a reduced environmental impact
 Daylight has a profound impact on the interior space and on occupant satisfaction
space and on occupant satisfaction
LEED‐CI 2009
Focus Lighting, Inc
h
Client: Focus Lighting, Inc. Architectural Lighting Design Group
Architect: Paul Bennett Architects
Architect: Paul Bennett Architects LLP
Office Size: 8,344 sf.
• Retrofit Application in New York City
LEED Sil
LEED Silver, 2009
2009
Strategies for LEED for Retail  Recognizes the unique nature of the retail environment
 Addresses the different types of spaces retailers need for distinctive product lines
 Daylight has been proven to have a positive impact on retail performance
 Tubular Daylighting Devices can maximize these impacts
LEED‐R‐NC 2009
BTI Greensburg
John Deere Dealership
Client: BTI Greensburgg
Builder: Hastco Construction
Architect: Landmark Architects
Site Design: BNIM Architects & John Deere Landscapes
g
Building Size: 28,500 sf.
•Prefabricated Metal Building
LEED Platinum, 2009
LEED‐R‐NC 2009
BTI Greensburg John Deere Dealership
BTI Greensburg John Deere Dealership
Impact of Daylighting:
 Reduces electricity use
Reduces electricity use
 Provides a better indoor environment
indoor environment for customers and employees  Saves the store operating costs
Learning Objectives
 Describe why daylight is an important component of sustainable design
 Compare and contrast the different daylighting strategies available
 Describe the minimum requirements for achieving LEED with daylighting and cite the ways that tubular daylighting
devices can help projects earn LEED certification
devices can help projects earn LEED certification
 List strategies others have used to incorporate optical daylighting technologies to reach their LEED and sustainable design goals
 Explain the importance of daylighting in net‐zero energy b ld
buildings
Net‐Zero
Net
Zero Energy Building
Energy Building
What is it?
What is it?
• The term “zero‐energy or net‐
zero energy building” has many zero energy building
has many
definitions, but is most often defined as a building that g
generates enough renewable energy on site to equal or exceed its annual energy use.
Facilitating
ac tat g Net-Zero
et e o Energy
e gy Buildings
u d gs
Facilitating Net
Net-Zero
Zero Energy
Buildings…
This concludes the American Institute of Architects
Continuing Education Systems g
Program.
2210 Oak Ridge Way Vista, CA 92081 (888) 765 2882
(888) 765‐2882
www.solatube.com
Local Expertise & Support
Local Expertise & Support
 Lighting Design
Layout Expertise
• Recommend Factory Certified Installers
Hanna Scott
LEED AP, Assoc. AIA
Sun West Distributors
505 State Place
Escondido, CA 92029
T: 760-432-0729
F: 760-747-1820
C: 760-580-4153
hscott@sunwestdistributors.com