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DOUBLE-LOK®

Product catalog summary

Product Overview: The Double-Lok® roof panel is a mechanically field-seamed, trapezoidal leg standing seam roof system designed to accommodate thermal expansion and contraction. It is suitable for industrial, commercial, and architectural applications.

Specifications:

Available in 18" and 24" coverage widths.
Minimum slope requirement is ¼:12.
Panel attachment uses a concealed fastening system with low, high, and 2” stand-off sliding clips.
Available in 24 and 22 gauges.
Finish options include smooth (standard) and embossed (optional).
Coatings available: Galvalume Plus®, Signature® 200, Signature® 300, and Signature® 300 Metallic.

Features and Benefits: The panels are designed to move freely to handle expansion and contraction forces. They come with various UL ratings for fire and impact resistance, including UL 580, UL 790 Class A, UL 263, and UL 2218 Class 4.

Environmental and Structural Performance:

Air-leakage: 0.005 cfm/ft² at 1.57 psf and 0.006 cfm/ft² at 6.24 psf static pressure (ASTM E1680).
Water penetration: No uncontrolled penetration at 20.00 psf static pressure (ASTM E1646).
Impact resistance: Class 4 rating (UL 2218).
Fire resistance: Class A fire rating (UL 790) and various design numbers for UL 263.
Uplift resistance and gravity loads are evaluated under AISI S100 standards.

Roof Listings and Approvals:

FM Global: Performance standards for panel roofs including uplift resistance (FM 4471).
Underwriters Laboratories: Class 90 rating for uplift resistance (UL 580).
Miami-Dade County: Complies with stringent code requirements for the High Velocity Hurricane Zone (TAS 125, TAS 201, TAS 100, FM 4471 App. G).
Florida Approval: Compliance with Florida Building Code structural requirements (ASTM E 1592, FM 4471, UL 790).

Contact Information: For more information, visit www.starbuildings.com or contact via phone at 1-800-879-7827 or email at [email protected].

Catalog excerpts

STANDING SEAM METAL ROOFING DOUBLE-LOK® The Double-Lok® roof panel is a mechanically field-seamed, trapezoidal leg standing seam roof system. Double-Lok® panels are available in 18” and 24” widths. Double-Lok® requires a minimum slope of ¼:12. Double-Lok® panels are ideal for industrial, commercial and architectural applications. FEATURES AND BENEFITS Designed to cope with the forces of expansion and contraction. This is accomplished by allowing the panels to freely move up and down the roof slope. 2” and 4” sliding clips are available in high and low versions, which allow thermal movement on a wide variety of building widths. Numerous UL 580 Construction rating are available, as well as UL 790, Class A for external fire, numerous roof assemblies for UL 263 for internal fire and the UL 2218 Class 4 impact rating. Double-Lok® carries FM, Florida approval and Dade County ratings. PRODUCT SPECIFICATIONS APPLICATIONS: Roof FINISHES: Smooth (standard); MINIMUM SLOPE: ¼:12 PANEL ATTACHMENT: Concealed Fastening System; Low, High, and 2” Stand Off Sliding Clips Embossed (optional) COATINGS: Galvalume Plus®, Signature® 200, Signature® 300, Signature® 300 Metallic

Open the catalog to page 1

STANDING SEAM METAL ROOFING DOUBLE-LOK® CATEGORY TEST METHOD PURPOSE Air-leakage Through Roof Panel Joints Determines the air leakage characteristics of metal roof panels under specified air pressure differences at ambient conditions 0.005 cfm/ft2 at 1.57 psf static pressure 0.006 cfm/ft2 at 6.24 psf static pressure Water Penetration Through Roof Panel Joints Determines the resistance to water penetration of metal roof panels under uniform static air pressure difference No uncontrolled water penetration through the panel joints at a static pressure of 20.00 psf Impact Resistance Determines Impact...

Open the catalog to page 2

DOUBLE-LOK®

DOUBLE-LOK®

Catalog excerpts

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