S-5! External Seam Clamp for Ultra-Dek WindClamp UD

Description

S-5! External Seam Clamp for Ultra-Dek WindClamp™ UD

WindClamp™ UD is an external seam clamp engineered to boost the wind-uplift resistance of standing-seam metal roofs—specifically MBCI® Ultra-Dek® and similarly dimensioned profiles. Installed at specified intervals, it helps prevent common failure modes like male-to-female seam separation and panel separation from mounting clips, bringing existing roofs closer to current wind-design requirements. 

Key Benefits

Increase Wind Resistance: Independent testing shows failure pressures can increase substantially (as much as 300%, depending on profile, gauge, and purlin spacing).

Cost-Effective Retrofit: Exterior installation avoids interior disruption and can be far less costly than structural changes or roof replacement. 

Code & Insurance Alignment: Helps older buildings align with updated wind provisions (e.g., ASCE 7-16 / FM 1-31 considerations). 

Quick Installation: Slide over the seam and tighten the setscrew to the specified tension—fast, repeatable, and minimally invasive. 

Special Technology

Profile-Specific Geometry: UD model sized for Ultra-Dek® seams to resist seam “unzipping” and clip disengagement. 

Setscrew Locking: Integral setscrew secures the clamp to the seam while preserving thermal-cycling integrity. 

Warranty

Manufacturer’s standard S-5! warranty. 

Best Uses

Existing Ultra-Dek® Roofs: Retrofit uplift enhancement at edges, corners, and zones of higher suction. 

New Construction: Integrate WindClamps in the initial design to reduce required panel gauge/clip counts and save material cost. 

Specifications Table

Specification	Data
Model	WindClamp™ UD
Intended Profiles	MBCI® Ultra-Dek® and similarly dimensioned standing-seam profiles
Overall Length	1.50 in (38.1 mm)
Overall Height	0.90 in (22.9 mm)
Seam Slot Width	0.31 in (7.8 mm)
Weight	0.082 lb
Attachment Method	External seam clamp with integral setscrew (tighten to specified tension)
Primary Function	Increase wind-uplift resistance; mitigate male-to-female seam separation and clip disengagement
Install Location	Exterior retrofit; place along seams at engineered intervals
Materials / Finish	Not specified (see S-5! documentation for metallurgical compatibilities)
Standards & Guidance	Supports compliance upgrades relative to ASCE 7-16 / FM 1-31 design criteria
Notes	Use profile-appropriate WindClamp model (UD for Ultra-Dek®; DL for Double-Lok®; 2X for MR-24®/SSR, etc.)

 

About S-5!:

S-5! is a leading manufacturer of metal roof attachment systems for solar and other rooftop applications. Founded in 1992, the company specializes in non-penetrating clamps and mounts engineered for durability, ease of installation, and long-term roof integrity.

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