ETFE – Trend or Resilient Technology Presentation

ETFE – Trend or Resilient Technology Edward M Peck, AIA, LEED AP Vice President I Thornton Tomasetti I Building Skin Practice

Lance Evans Vice President I HKS I Sports and Entertainment

FACADES + Performance I Resilience Building Skin Practice

ETFE – Trend or Resilient Technology Define Resilience ETFE System Examples Technology – Components Technology – System Properties Future Developments System Suppliers Case Studies

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ETFE – Trend or Resilient Technology RESILIENCE I The Intentional Design of Buildings in Response to Vulnerabilities to Disasters Scenarios RESILIENCE I Life and Longevity of Building Systems During Standard Operation – Holistic Durability RESILIENCE I Technology Stands the Test of Time – Performance Requirements of Today and the Future

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ETFE – Trend or Resilient Technology Resilience I Disasters Scenarios I Specific to Location / Region Resilience I Holistic Durability I Life Safety Resilience I Sustainability I To Endure I Performative Design

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ETFE – Trend or Resilient Technology Today I The Technology is Associated with Innovative and Iconic Structures Tomorrow I Will the Technology Transition to Mainstream Architecture?

Resilience I Performance Requirements of Today and the Future

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Today I Innovative and Iconic Structures

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Iconic Example I 2000

Vector Foiltec

Eden Biomes Building Skin Practice

Iconic Example I 2002

SuperSky

National Space Centre Building Skin Practice

Iconic Example I 2006

Seele Cover (Covertex)

Allianz Arena Building Skin Practice

Iconic Example I 2008

Vector Foiltec

National Swimming Center - WaterCube Building Skin Practice

Iconic Example I 2014

Vector Foiltec

Sochi 2014 Building Skin Practice

Iconic Example I 2016

Vector Foiltec

Minnesota Multipurpose Stadium Building Skin Practice

Today and Tomorrow I Transition into Mainstream Architecture Potential Tipping Point of the Technology Comparable Materials and Technologies Still Dominate Market Moving Beyond Trend

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Technology Development I 1986

Vector Foiltec

Chelsea Hospital I Early Example of Program Building Skin Practice

Technology Development I 1996

Vector Foiltec

Hampshire Tennis Complex I Cable Structure Building Skin Practice

Technology Development I 2000

Vector Foiltec

Festo Headquarters I Dynamic Shading Building Skin Practice

Technology Development I 2002

Vector Foiltec

Kapuziner Atrium – Existing Building Building Skin Practice

Technology Development I 2004

Vector Foiltec

Oval Complex Atrium I Lightweight Solution Building Skin Practice

Technology Development I 2004

Vector Foiltec

Art Center College of Design I First US Project Building Skin Practice

Technology Development I 2004

Vector Foiltec

Siren Photography Studio I Faรงade Application Building Skin Practice

Technology Development I 2006

Vector Foiltec

US Federal Building – ATF I Blast Considerations Building Skin Practice

Technology Development I 2007

Structureflex

Charlotte Light Rail I Single Layer Building Skin Practice

Technology Development I 2007

Boca Raton Resort and Club I Hurricane Considerations Building Skin Practice

Technology Development I 2009

Vector Foiltec

Unilever Headquarters I Double Wall Integration Building Skin Practice

Technology Development I 2011

Novum

SUNY Albany Canopy I Existing Building Building Skin Practice

Technology Development I 2013

CURTAIN WALL + ETFE

Birdair I Seele

Yonkers Race Track I LED Integration Building Skin Practice

Technology Development I 2010

Hightex

Dolce Vita Shopping Center I Foil Compositions Building Skin Practice

Technology – Components

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Technology

Composition of ETFE Building Skin Practice

Technology

Stress

!

Steel

ETFE-film

Strain !

ETFE Stress Strain Diagram Building Skin Practice

Technology

Foil Systems I Single Layer Membrane I Pneumatic Panels Building Skin Practice

Technology Cladding / ETFE Foils– single layer Frame / Pressure Plate – attachment to support structure Cable / Rod Tie Downs

Single Layer Membrane I Typical Edge Condition Building Skin Practice

Technology Cladding / ETFE Foils – Multiple Layers Extrusion / Pressure Cap – Capture of ETFE Bracket / Upstand – connection to structure

Multiple Layer Pneumatic System I Edge Condition Building Skin Practice

Technology

Two Types of Engineering Strategies Building Skin Practice

Clear Foil

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Dot-Matrix

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Custom Print

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White

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Color Tints

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Open

Closed

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Technology – System Properties

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Technology I System Properties / Advantages daylighting control I variability geometric capacities – free form structural performance – long-span / blast performance variable thermal properties catalyst for passive concepts acoustic performance fire self-venting / noncombustible unaffected by atmospheric pollution / low maintenance ecologically friendly / energy efficient lighting / projection opportunities Building Skin Practice

Technology I System Properties

Daylight Control I Variability Building Skin Practice

Technology I System Properties

Geometric Capacities Building Skin Practice

Technology I System Properties

Structural Performance Building Skin Practice

Technology I System Properties

3 layer system

.345

5 layer system

u-value

.208

Btu/h ft² f°

Thermal Performance I Variable Building Skin Practice

Technology I System Properties

Acoustic Building Skin Practice

Technology I System Properties

Catalyst for Sustainable / Passive Concepts Building Skin Practice

Technical I System Properties

Fire Characteristics Building Skin Practice

Technical I System Properties

Life / Longevity I Low Maintenance Building Skin Practice

Technology I System Properties

Ecology I Low Embodied Energy Building Skin Practice

Technology I System Properties

Ecology I Weight Building Skin Practice

Technology I System Properties

Light Projections / Display Building Skin Practice

Technology I Future Developments

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Technology I Future Developments Super Insulators I Nanogel Integration PV Integration Selective Coatings LED Grid Integration Composite System Development

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ETFE Manufacturers

CURTAIN WALL + ETFE

ETFE SPECIALIST

FABRIC + ETFE

Birdair Building Skin Practice

Case Studies

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Before

After

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Existing Condition: The Metro Dome

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Metro Dome Next 2007-2009

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2 Major Collapses

Great Recession Building Skin Practice

Metro Dome roof collapse 2010

Do You Need Retractably?

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Minneapolis Multi-Purpose Stadium

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Big Picture Planning Response

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In the Past and Present

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Geography

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Why ETFE

I. Climate

II. Connection

III. Sustainability

IV. Technology

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I.

Climate

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Typical Stadia Structure

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40%-50% PREMIUM FOR A RELATIVELY FLAT OR SHALLOW SLOPED ROOF IN MINNEAPOLIS 40%-50% Premium For a Relatively Flat or Shallow Sloped Roof in Minneapolis

$93M → $135M $70M → $125M

$85M → $150M

$90M → $140M Building Skin Practice

Rule Number One: Get The Snow Off The Roof

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01 GENERIC

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02 ADAPT

03 RESPOND

04 RESULT

Snow Removal Strategy

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ETFE’s Effect

13 psf reduction in snow loading

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PANEL LENGTH

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ht

300+ ft

Design of ETFE Building Skin Practice

Case Study

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Unbalanced Load Analysis

LOAD CASES Proposed Adjustment to Base Detail

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WELD I SNOW CABLE I PRINT PATTERN - ORIENTATION Snow Cable - Perpendicular

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The Super Truss: One of the Lightest Roof Structures in the NFL

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II.

Connection

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The MET

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Ability to Grow Turf

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Operability

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Clear is the New Retractable Building Skin Practice

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III.

Sustainability

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Solar Heat Gain Advantages/Disadvantages

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Solar Heat Gain Advantages/Disadvantages

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Solar Heat Gain Advantages/Disadvantages

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Solar Heat Gain Advantages/Disadvantages

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Solar Heat Gain Advantages/Disadvantages

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Sustainability Analysis – Solar Radiation

Opportunity Due To Exposure

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IV.

Technology

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Integral Lighting

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IV.

Technology

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