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Panels

Ultra-Dek®

product-ultradek

  • Description
  • Advantages & Attributes
  • Ultra-Dek Properties
  • Allowable Uniform Loads

Ultra-Dek® is a metal standing seam roofing product attached by using a variety of concealed, interlocking clips that provide for minimum panel penetrations. This panel offers a snap together sidelap seam and saves the rental cost of mechanical electric seamer. This panel is recommended for use in non-snow regions. This panel can be used on new construction as well as retrofit on existing structures. This panel is designed to provide a high degree of weathertightness and has been tested by independent laboratories in accordance with ASTM E283 and E331 (for air infiltration and water penetration).

 
Gauge
  • 24 gauge (standard)
  • 22 gauge (available on special request)

 

Length
  • 50′ maximum, longer lengths available by special request

 

 
Dimensions
  • 24″ wide by 3″ high (standard)
  • 18″ and 12″ also available

 

 
Finish
  • Galvalume Plus®
  • Signature® 200
  • Signature® 300
Limitations
  • Recommended for roof slopes of 1/4:12 or greater. Typically installed with a floating roof clip, but fixed clips can be used on gabled buildings up to 200′ wide and single slope buildings up to 100′ wide.

 

 
Fasteners
  • Concealed fastening system. The clips are available as floating or fixed. Two floating clip heights are available to allow for various thermal block and insulation thickness.

 

 
Usage
  • This panel is a structural panel that spans up to five feet purlins. It is designed to meet the ever-changing specifications and other industry codes.

Advantages

  1. Design Integrity
  2. Floating roof is able to cope with the forces of expansion and contraction
  3. 2” sliding clips available
  4. UL Class 90 Rating
  5. Fire resistance ratings
  6. No field seaming is required
  7. Flexibility
  8. Ease of Installation
  9. Forgiving system
  10. Pre-punched panels and components
  11. Colors and finishes

Attributes

  1. Panel begins and ends in the high, reducing the risk of leakage at the rake that can occur when finishing in the low
  2. This is accomplished by allowing the panels to freely move up and down the roof slope. Due to this design feature, the system offers no diaphragm capabilities or purlin stability
  3. Providing 1-1/4” movement in each direction
  4. Has 10 different UL Class 90 construction numbers, each of which is available with several options
  5. The roof system qualifies for use in several UL design assemblies and carries a UL “Class A” fire rating
  6. The panels snap together forming a self-locking seal
  7. Wall covering can be erected before or after the roof is installed
  8. The erector has the option to install each side of the roof separately or both sides simultaneously, which greatly increases the speed and convenience of erection
  9. Panel is designed to allow for the roof to be finished in the “high” when an out-of-square condition or other factors cause the roof to terminate up to 4” out of module
  10. Combined with self-engaging back-up plates, assures panel module and speeds roof installation
  11. Available in both Signature® 200 and Signature® series paint systems. Refer to Robertson Architectural Color Chart for more information

Ultra-Dek® – Section Properties 24″ Coverage

  NEGATIVE BENDING POSITIVE BENDING
Panel Gauge FY (KSI) WEIGHT (PSF) Ixe (IN.4/FT.) Sxe (IN.3/FT.) Maxo (KIP-IN.) Ixe (IN.4/FT.) Sxe (IN.3/FT.) Maxo (KIP-IN.)
26 50 1.02 0.1158 0.0835 2.4997 0.2202 0.0901 2.6987
24 50 1.23 0.1350 0.0951 2.8477 0.2798 0.1153 3.4524
22 50 1.56 0.1837 0.1332 3.9877 0.39877 0.1504 4.5020

Ultra-Dek® – Section Properties 18″ Coverage

  NEGATIVE BENDING POSITIVE BENDING
Panel Gauge FY (KSI) WEIGHT (PSF) Ixe (IN.4/FT.) Sxe (IN.3/FT.) Maxo (KIP-IN.) Ixe (IN.4/FT.) Sxe (IN.3/FT.) Maxo (KIP-IN.)
26 50 1.09 0.1366 0.0930 2.7843 0.2686 0.1173 3.5126
24 50 1.32 0.1804 0.1274 3.8134 0.3366 0.1477 4.4260
22 50 1.66 0.2444 0.1780 5.3298 0.4359 0.1915 5.7339

Ultra-Dek® – Section Properties 12″ Coverage

  NEGATIVE BENDING POSITIVE BENDING
Panel Gauge FY (KSI) WEIGHT (PSF) Ixe (IN.4/FT.) Sxe (IN.3/FT.) Maxo (KIP-IN.) Ixe (IN.4/FT.) Sxe (IN.3/FT.) Maxo (KIP-IN.)
26 50 1.23 0.1742 0.1110 3.3221 0.3405 0.1649 4.9359
24 50 1.48 0.2330 0.1540 4.6122 0.4258 0.2070 6.1988
22 50 1.86 0.3256 0.2238 6.7018 0.5507 0.2682 8.0305
Properties Notes:
  1. All calculations for the properties of Ultra-Dek® panels are calculated in accordance with the 2001 edition of the North American Specification For Design Of Cold-Formed Steel Structural Members.
  2. Ixe is for deflection determination.
  3. Sxe is for bending.
  4. Maxo is allowable bending moment.
  5. All values are for one foot of panel width.

Allowable Uniform Loads In Pounds Per Square Foot

drawing_ultradek

24″ Coverage

26 Gauge (Fy = 50 Ksi)
SPAN TYPE LOAD TYPE SPAN IN FEET
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SINGLE LIVE LOAD 146.9 122.4 104.9 91.8 81.6 72.0 59.5
2-SPAN LIVE LOAD 146.9 122.4 104.9 91.8 81.6 66.7 55.1
3-SPAN LIVE LOAD 146.9 122.4 104.9 91.8 81.6 73.4 66.8
4-SPAN LIVE LOAD 146.9 122.4 104.9 91.8 81.6 73.4 64.3
24 Gauge (Fy = 50 Ksi)
SPAN TYPE LOAD TYPE SPAN IN FEET
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SINGLE LIVE LOAD 204.0 170.0 145.7 127.5 113.3 92.1 76.1
2-SPAN LIVE LOAD 204.0 170.0 145.7 118.7 93.8 75.9 62.8
3-SPAN LIVE LOAD 204.0 170.0 145.7 127.5 113.3 94.9 78.4
4-SPAN LIVE LOAD 204.0 170.0 145.7 127.5 109.4 88.6 73.2
22 Gauge (Fy = 50 Ksi)
SPAN TYPE LOAD TYPE SPAN IN FEET
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SINGLE LIVE LOAD 296.9 247.5 212.1 185.6 148.2 120.1 99.2
2-SPAN LIVE LOAD 296.9 247.5 212.1 166.2 131.3 106.3 87.9
3-SPAN LIVE LOAD 296.9 247.5 212.1 185.6 164.1 132.9 109.9
4-SPAN LIVE LOAD 296.9 247.5 212.1 185.6 152.3 124.1 102.6
Allowable Uniform Loads Notes:
  1. Allowable loads are based on uniform span lengths and Fy = 50 ksi.
  2. LIVE LOAD is limited by bending, shear, combined shear and bending and web crippling.
  3. Allowable loads consider a maximum deflection ratio of L/180.
  4. The weight of the panel has not been deducted from the allowable loads.
  5. THE ALLOWABLE UNIFORM LOADS ARE NOT FOR USE WHEN DESIGNING PANELS TO RESIST WIND UPLIFT.
  6. Please contact manufacturer or manufacturer’s website for most current allowable wind uplift loads.
  7. The use of any field seaming machine other than that provided by the manufacturer may damage the panels, void all warranties and will void all engineering data.

The engineering data contained herein is for the expressed use of customers and design professionals. Along with this data, it is recommended that the design professional have a copy of the most current version of the North American Specification for the Design of Cold-Formed Steel Structural Members published by the American Iron and Steel Institute to facilitate design. This Specification contains the design criteria for cold-formed steel components. Along with the Specification, the designer should reference the most current building code applicable to the project jobsite in order to determine environmental loads. If further information or guidance regarding cold-formed design practices is desired, please contact the manufacturer. EFFECTIVE JANUARY, 2014 SUBJECT TO CHANGE WITHOUT NOTICE

  • Ultra-Dek® is a registered trademark of the NCI Group, Inc..
  • Galvalume Plus® is a registered trademark of BIEC International, Inc.
  • Signature® is a registered trademark of the NCI Group, Inc.