MOUNTING SYSTEMS connecting rail O+W – length 800 mm

The Mounting Systems connecting rail O+W with a length of 800 mm is a specialised component for flat roof mounting systems in east-west orientation. It serves as a connecting element between the module supports (beams) of two back-to-back modules. This rail forms the static backbone to join the individual elevations together to create a stable unit while simultaneously ensuring the correct row spacing.

Thanks to its generous length of 800 mm, it enables optimal force distribution within the system and offers sufficient space for ballasting. The rail is precisely matched to the requirements of aerodynamically optimised flat roof systems to ensure maximum stability even in high wind loads.

Highlights at a glance

• Specialised for east-west: Optimised for coupling module rows in O+W systems to maximise roof area utilisation.
• High static stability: The length of 800 mm ensures a large-area load distribution and increases the rigidity of the overall substructure.
• Integrated ballast reception: Provides a level surface for safe placement of ballast blocks (e.g. paving slabs) directly at the centre of the structure.
• Weather-resistant aluminium: Made from high-quality material that remains permanently corrosion-free and harmonises perfectly with the other system components.
• Precision perforation: Features factory-prepared holes or oblong holes for quick and error-free screwing to the module supports.
• Aerodynamic compound: Supports the "cohesion" of the module field, which reduces the need for additional weighting due to the suction combination effect.

Areas of application

This connecting rail is the key for efficient flat roof systems:

• East-west flat roof systems
  • Connecting the rear supports (ridge area) of two oppositely inclined modules.
• Large commercial installations
  • Used on industrial halls where fast assembly and high area utilisation are the focus.
• Ballasted systems without roof penetration
  • Wherever stability is achieved solely by the dead weight and mechanical connection of the rails.

Installation & safety notes

• Precise bolting
  • Use only the stainless steel bolts and nuts specified by the manufacturer to connect the connecting rail to the supports.
• Protection of roof membrane
  • Since the connecting rails often run close to the ground, a suitable building protection mat (PAD) should always be used under the contact points with the roof.
• Ballasting as per plan
  • Place the calculated number of ballast blocks centrally on the connecting rail to achieve uniform pressure distribution on the roof structure.

Properties

FAQs on the connecting rail O+W 800 mm

Why is the rail exactly 800 mm long?

For optimal module spacing.

• The length is dimensioned so that for standard module widths it creates the ideal "ridge distance" between the module backs to enable maintenance aisles and optimise aerodynamics.

Can I place heavy concrete blocks on this rail?

Yes.

• The rail is designed as a load-bearing element. However, ensure that the ballast is secured so that it cannot slip (e.g. with rail edges or additional retaining brackets).

Is the rail laid directly on the roof?

No, indirectly.

• It is usually mounted between the supports. If it runs close to the ground, a protective mat (building protection pad) must be placed between the rail and the roof membrane to prevent damage.

Is the mounting material included in delivery?

Usually separate.

• Usually you order the connecting rail as a single component. The necessary system screws (e.g. hammer head or hexagon head screws) are often part of a separate mounting kit.