fabric architecture.material choices
DESCRIPTION
A look at materials available for designing and building fabric structures.TRANSCRIPT
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Fabric Architecture:Material Choices
• Indentify and compare a variety of architectural fabrics for designing fabric structures
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MaterialsForFabric StructuresIt’s all about the coating…
• It seals the fabric against weather• provides resistance to ultraviolet light• functions as a medium for joining panels• fire-rated (Class A,B,C, NFPA 701)
Today’s Materials come…
different widths
variety of colors
some can accept graphics
different light transmission
vary in life span
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Other issues include…
Selecting the proper Fabric
Size
Form
Span
Function
Availability
Economics
Sustainability
Today’s fabrics include:
Teflon coated fiberglass (PTFE)
Ethylene tetrafluoroethylene (ETFE)
Vinyl coated polyester (PVC/PVDF)
High density polyethylene (HDPE)
Laminated Products
Theatrical Draperies and Stretch Fabrics
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Make Mine Non Combustible…
Teflon Coated Fiberglass (PTFE)
large scale permanent structures
Non Combustible (Class A)
life span of over 25 years
off white color during installation
Colors now available
membrane bleaches to milky white
2009 Pricing: $75-125 /sqft.
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Other “Non-combustibles”…
•Silicon Coated Fiberglass•Hybrid PTFE (Gore brand Tenara)•TiO2 (Titanium Dioxide) Photocatalyst membrane• 2009 Pricing: $85-150 /sqft.
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Ethylene Tetrafluoroethylene (ETFE)
high transparency (97%)
more than 25 year life span
self cleaning
single or multi-layers
100% recyclable
2009 Pricing: $100-150 /sq.ft.
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Make mine PVC
Vinyl Coated Polyester (PVC/PVDF)
most cost effective
temporary and permanent structures
soft, pliable and easy to handle
less expensive than PTFE and ETFE
variety of colors, weights, topcoats and textures
Fire resistant (Class C, NFPA 701)
life span of 20+ years
2009 Pricing: $50-75 /sq.ft
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What’s not to like…
•Perforations, translucency•Stretches nicely•Different seam width•A variety of manufacturers•10-15 year warranties• Recyclable
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Made for the Shade
High Density Polyethylene (HDPE)
shading only (UV stable)
variety of styles, colors & shade factors
high tensile strength
Fire and non fire resistant
well suited for dry/hot climates
protection from sun and hail
2009 Pricing: $25-50 /sq.ft
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Mesh is hot so you can stay cool
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If you want to keep it simple…
Acrylics, Coated and Laminates
Tent and Awning Industry
variety of styles, colors & patterns
low tensile strength
Fire and non fire resistant
Exterior Shading Devices
2009 Pricing: $35- 50 /sq.ft
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A little bit of this, a little bit of that…• Textile Facades• Graphics• Textures• Digital Printing• Truly unique patterns
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Keep it inside…
Theatrical Drapery and Stretch Fabrics Interior Applications and Lighting Fixture
variety of styles, colors & patterns and cost!
low tensile strength
Fire resistant
Self supporting, tensioned or draped
No snow load!
2009 Pricing: $30-100 /sq.ft.
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Soft Spaces…• Hides mechanical systems• Acoustical helper• Light reflector• Transforms spaces
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Photo Voltaic and Custom Fabrics
Thin film PV
Sustainability
multi-purpose structures
custom colors, textures, patterns
Form follows Fabric, Fabric follows form
2009 pricing: Unknown
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Anatomy of a Fabric Structure (% varies)
Plan Area (Length x Width) X Shape Factor (H) = Surface AreaSurface Area X Cost per SQFT= Budget
Design (DD to CD)
Engineering (awning to dome Stadium)
Project Management (scope of work)
Steel Fabrication (large variable)
Membrane Fabrication (based on complexity)
Installation (location, location, location)
Shipping (dedicated truck, gas prices)
Teflon coated fiberglass (PTFE): $75-125Other “non-combustibles”: $85-150Ethylene Tetrafluoroethylene film (ETFE): $100-150Vinyl coated polyester (PVC/PVDF): $50-75High density polyethylene (HDPE): $25-50Laminates and Interior Fabrics: $35-50Future “Fabrics” unknown
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Are you ready for a quiz?
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Question 1
Which material is best used for permanent structures requiring a Class A rating or is “non combustible”?
A. Teflon Coated Fiberglass (PTFE)
B. Vinyl Coated Polyester (PVC)
C. High Density Polyethylene (HDPE)
Question 1:Answer: A, Teflon Coated Fiberglass. PTFE is a Class A non-combustible material used for permanent applications.
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Question 2
The best material for applying graphics to is:
A. Teflon Coated Fiberglass (PTFE)
B. Vinyl Coated Polyester (PVC)
C. High Density Polyethylene (HDPE)
Question 2Answer: B, Vinyl coated polyester. PVC is the most common material used for background to vinyl applied digital printing and screen printing ink.
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Question 3
A. True or B. False
Architectural Fabrics vary in color, weight, light transmission and cost.
Question 3Answer: True. Yes, Architectural Fabrics vary in color, weight, light transmission and cost.
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Question 4
The overall cost of a fabric structure is most effected by:
A. The fabric chosen.
B. The amount of steel required.
C. The material finishes.
D. The size of the project.
E. All of the above.
Question 4Answer: E. All of the above. The chosen fabric, the amount of steel and the finish specified for the steel, fabric and cables effect the overall cost. The size can play a major role too. As the larger the structures becomes, the lower the overall cost becomes on a square footage basis.
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Contact Information
www.fabricarchitect.com
www.fabritecstructures.com
Samuel J, Armijos, AIA
89 Glenroy Road East
Fairfield, NJ 07004
973.244.5871