CLADDING
Single Lock Standing Seam (SLSS)

What is Single lock standing seam system?

Single lock standing seam system is used for façade application. It has a taut and regular appearance. The procedure consists of welting the sheets to one another , along their entire length by single folding the panel's side upstands together.

Economical: The use of profiling and seaming machines for the closure of longitudinal seam joints significantly reduces installation time. This reduction makes for a more cost-effective solution, particularly when considering very large surface areas.

Discrete: The low height of the seams (25mm) contributes to the agility and uniformity of the roof, whilst highlighting its architectural purpose. When dealing with more complex designs this system portrays a more technologically advanced appearance.

This system is particularly suitable for very large cladding surfaces and for structures located in regions of harsh climate, which are often subject to snowfall (mountainous or continental climate), strong winds, and heavy rain.

Areas of application

From 60 ° to 90 °

Both renovations and new buildings

Useable length : up to 4 m

2 types if insulation: Vertically or Horizontally

Panel Dimension

VM ZINC® 0.7 mm/0.8 mm Single Lock Standing-Seam Cladding: single lock standing-seam panels with finished seam height of 25 mm

Coils Width: 500 mm maxi (panels: 430mm ctc)

Maximum length: 4 meters

Aspects

QUARTZ-ZINC® PLUS ANTHRA-ZINC® PLUS	0.7 or 0.8 mm thick
PIGMENTO® PLUS	0.7 mm thick

What is VM ZINC PLUS®? VM ZINC PLUS® is VM ZINC® coated on the underside with a protective layer (Umicore patent).
1.	Surface appearances available : QUARTZ-ZINC® PLUS, and ANTHRA-ZINC® PLUS.
2.	Allows the use of an incompatible roof deck.
3.	VM ZINC PLUS® products can be bent, folded or profiled without any surface change (similar to VM ZINC® products) and thus allow the exact methods of laying.
4.	No need to ventilate the underside of VM ZINC PLUS®.

Characteristics of this technique

VM ZINC PLUS® Single lock standing seam (SLSS) is installed on a minimum 15 mm plywood.
An anti abrasive building paper (i.e Tyvek) must be laid between VM ZINC PLUS® and plywood.
A 20 mm continuous ventilation gap must be left clear beneath the plywood.
Air inlets and outlets shall be provided at both top and bottom.

Components	Dimension
Thickness	0.7 mm /0.8 mm
Maximum Panel width (CTC) Center to center d	430 mm
Minimum Pitch	60°- 90°
Maximum Panel length	4 m

Installation

Stages to install VM ZINC PLUS® Single Lock Standing Seam:

1	Lay the panel on ventilated plywood structure
2	Clips are fixed. Due to the theoretical thermal expansion two types of clips are used ; fixed and sliding clips. Vertical: A fixed area is created with 5 clips at the top of the panel and then sliding clips are distributed. Horizontal: A fixed area is created with 5 clips in the middle of the panel and then sliding clips are distributed.
3	Single lock seam: Crimp standing seams with manufacturer-approved tools so cleat, sheet metal roofing, and field-applied seam sealer are completely engaged.