S:FLEX Insertion System

Amazing appearance,
sophisticated technology

Suitable for facades and massive ballustrades,
metal sheet and tiled roofs

S:FLEX Carport Single/Double
Solar carports
with segmental design
For 1, 2 or up to
24 parking spaces
Simple.
Quick.
Flexible.
S:FLEX Green Roof System
Ecological
green roofs
and clean
sustainable
energy
Fast and penetration-free
installation
High water storage volume and
big module distance from the ground
S:FLEX Delta Concrete
Designed for concrete foundations
Lightweight, material-efficient design
Few components, a lot of flexibility

Reliable fastening systems – guaranteed watertight roofs

 

All S:FLEX flat roof mounting systems can be installed without roof penetration and are available as aerodynamic/low-ballast systems, as ballasted frames or with concrete foundation.

Our aerodynamic LEICHTmount systems require only minimal additional ballast and are the ideal solution for quick installation and for roofs with low pressure/load-bearing capacities.
Our ballasted system based on the S:FLEX Delta triangle allows installation with higher ballast quantities if necessary.
Our Delta Concrete system is the solution of choice for installations on flat concrete roofs with parapet walls.
And for quick and easy PV mounting on green roofs we offer the S:FLEX GreenLight system.

 

 

S:FLEX LEICHTmount RAIL 2.1 with extremely low surface load

 

S:FLEX LEICHTmount RAIL 2.1 for south orientation
S:FLEX LEICHTmount RAIL 2.1 for east/west orientation
 


The main advantages of the LEICHTmount RAIL 2.1 S/EW:

  • System with General Technical Approval
  • Extremely low surface load and system installation without roof penetration possible
  • Low ballast due to systematic aerodynamic optimisation of the design
  • Foot plates attached with a click to the ground rails to protect the roof skin from plasticizer migration
  • Better pressure load distribution by increasing the number of foot plates
  • Independently tested for wind safety in accordance with German and US standards
  • Optimised rear ventilation for maximum energy yield
  • Optimised cable management with conduit covers and edge clips
  • Integrated cable ducts and covers that make cable routing possible even after system installation without additional expense or effort
  • Integrated fall protection (optional)
  • Roof drainage is ensured
  • Capable of carrying lightning currents in accordance with DIN EN 62561 (VDE 185-561-1):2013-02
  • We will gladly create the structural design for our customer's projects if required – the documentation we provide includes the structural analysis and the ballast plan

 

LEICHTmount RAIL 2.1 S for south orientation

 


 

LEICHTmount RAIL 2.1 EW for east/west orientation

 

 

The lightweight alternative

Aerodynamic, lightweight and totally wind-safe installation possible without roof penetration. The S:FLEX LEICHTmount RAIL 2.1 mounting system for framed PV modules is the ideal solution for flat roofs – even with a low load-bearing capacity.

Both variants – the System S for the traditional south-facing orientation and the EW variant for maximum east/west coverage – deliver outstanding economy. The use of only a few, pre-assembled components, most of which can be connected easily and securely with one click, makes installation easy, efficient and fast. No need for time-consuming measuring, drilling or cutting on the roof.

In addition to the wide new foot plates clicked onto the substructure, the tool-free installation without self-drilling screws or sharp-edged components provides additional protection – even for the most delicate roof membrane.

 

 

The S:FLEX LEICHTmount CF for south orientation (S) or east/west coverage (EW)

 

S:FLEX LEICHTmount flat roof system for south orientation
S:FLEX LEICHTmount flat roof system for east/west orientation
 


The main advantages of the LEICHTmount CF S/EW:

  • Patented, statically optimised systems
  • Wind-tunnel tested to the latest standards at up to 250 km/h
  • S variant with tilt angle of 5°, 10° or 15° and optimised row spacing for an 18° or 25° shading calculation area available
  • Fast and easy installation
  • Lower transport costs due to minimal use of materials
  • Includes fleece pads proven via durability tests
  • Certified module clamps with earthing pins that provide system earthing in accordance with international standards
  • Problem-free water drainage and optimal module back-ventilation
  • Optimised wind suction openings for reduced ballast
  • Also suitable for roof-edge zones
  • Also available as a heavy duty, easy-to-install Alpine version
  • Certified to UL 2703, fire tested to UL 1703, tensile and load tested to IEC 61215
  • We will gladly create the structural design for our customer's projects if required – the documentation we provide includes the structural analysis and the ballast plan

 

LEICHTmount CF S for south orientation

 


 

LEICHTmount CF EW for east/west orientation

 

 

The aerodynamic alternative

On flat roofs where roof penetration is not possible or desired but the roof construction and load-bearing capacities do not permit ballasting, an aerodynamic, largely ballast-free solution is a viable alternative.

Installed quickly and removable without a trace – yet as stable, storm-proof and durable as ballasted mounting systems or those that are firmly connected to the roof membrane – our aerodynamically designed frames are based on a well-thought, pioneering concept. In particular, our LEICHTmount systems, which can be installed in both south-facing and east-west orientations, come highly recommended as innovative and uncomplicated flat-roof installations.

 

 

 

S:FLEX Delta Concrete raised flat-roof mounting systems, perfect for roofs with parapet walls

 

Flat roof installation with S:FLEX Delta Concrete

The advantages of the S:FLEX Delta Concrete:

  • The Delta Concrete is designed to be used on flat
    concrete roofs and offers the possibility to build over obstacles in order to optimise performance per area
  • Lightweight, material-efficient design makes the
    Delta Concrete a modular and flexible system with few components
  • Almost all framed and frameless module types with common dimensions – especially bifacial modules – can be installed either in landscape or portrait mode
  • Excellent rear ventilation ensures high yields and makes the system suitable for hot regions.
  • Long service life, complete recyclability and corrosion resistance with a 10-year warranty
  • System load capacity in accordance with DIN EN 1991-1-4:2010-12 (wind loads) and DIN EN 1991-1-3:2010-12 (snow loads), on request testable structural calculations for maximum safety
  • We will gladly create the structural design for our customer's projects if required – the documentation we provide includes the structural analysis as well as the installation plan
 

 

A flexible frame solution with concrete foundation on flat roofs

The S:FLEX Delta Concrete flat roof structure is a modular and flexible system with a lightweight, material-efficient design and few components that can be quickly planned and installed. No drilling of aluminum or steel is necessary on site. Power optimisers and (micro-)inverters can be easily attached to the structure.

 

Raised flat-roof frames with the S:FLEX Delta triangle

 

Raised flat-roof frames with the S:FLEX Delta triangle and ballast stones
Flat-roof frames with the S:FLEX Delta triangle
 


All benefits of our systems with the S:FLEX Delta triangle at a glance:

  • Variable use of framed and frameless PV modules on flat roofs of old and new buildings
  • Installation on ballast stones, hanger bolts or trapezoidal sheet metal rails is possible; special solutions on request
  • Horizontal or vertical module installation
  • Delta triangles are available with tilt angles from 5° to 45° (in 5° increments)
  • Minimised storage and transport costs: The triangles are delivered pre-installed but collapsed. Transport and storage of up to 252 pcs. per 130x80 cm (approx.) pallet
  • Quick installation of the substructure thanks to a very high degree of pre-assembly, our latest one-click technology and a detailed installation recommendation
  • Maximum flexibility during installation due to variably adjustable module clamps and end clamps for modules with a frame height of 30–50 mm; certified laminate clamps are available for frameless modules
  • Excellent adaptability to ensure a flat PV array – even on uneven roof surfaces thanks to height-adjustable mounting rails
  • Long service life, complete recyclability and corrosion resistance thanks to 100% aluminium and stainless steel components with a 10-year warranty
  • System load capacity in accordance with DIN EN 1991-1-4:2010-12 (wind loads) and DIN EN 1991-1-3:2010-12 (snow loads), on request testable structural calculations for maximum safety
  • We will gladly create the structural design for our customer's projects if required – the documentation we provide includes the structural analysis and the ballast plan

 

 

 

The easiest way to use flat roofs for photovoltaic systems

The S:FLEX roof frame with ballast is the simple and proven solution for non-penetrative, green-roof-compatible flat-roof installations. A number of attachment and ballast options are available depending on the planned system and the conditions on site.

On flat roofs without roof structures and in regions with high wind loads, we recommend installing Delta triangles for ballasting. In this case, a particularly high quantity of ballast can be flexibly distributed over the rails.

For roofs with a lower load-bearing capacity and roof superstructures on which longer rails cannot easily be laid, the triangles are attached directly to ballast blocks/stone slabs.

Installation of the substructure with S:FLEX Delta triangles with our universal one-click installation principle and ballast – such as weighting stones, gravel or green-roof granules – ensures absolute roof-tightness and easy dismantling. It also offers all the benefits of a raised-panel solution. As well as straightforward maintenance and easy accessibility of both the roof surface and the PV system, high system efficiencies are also achieved thanks to optimal rear ventilation.

 

Quick PV installation on green roofs with S:FLEX GreenLight

 

S:FLEX GreenLight green roof PV mounting system
GreenLight base plate with angle bracket and mounting rail
 


The advantages of the S:FLEX GreenLight System at a glance:

  • Particularly easy and quick to install solution for green roofs
  • Water storage volume of 39.5 l for high water retention
  • Modules can be mounted vertically and horizontally
  • South and east-west orientation (saddle roof and butterfly assembly possible)
  • Available for 3 different inclination angles: 10°, 15° and 20°
  • High module distance from the ground for simplified maintenance of the green roof and optimised yields
  • Optional: non-penetrative fall arrest or restraint system
  • Static calculations according to Eurocode and regional standards

 

 

 

Especially for the combination of photovoltaics and green roofs

The S:FLEX GreenLight System with substrate ballasting and integrated water reservoir is the quick and easy solution for penetration-free extensive green roofs. The large distance between the modules and the substrate surface prevents heat accumulation and avoids yield losses due to the plants shading the PV modules. For optimal use of roof space as well as easy care, inspection and maintenance, we recommend the butterfly assembly variant with its raised structure between the rows. If required and desired, the problem-free integration of a fall protection is possible.

 

S:FLEX flat roof frames

FLAT ROOF

Aerodynamic and ballasted systems for flexible installation and optimal yields on flat roofs

S:FLEX pitched roof frames

PITCHED ROOF

Tiles, shingle, corrugated fibre cement, foil, sheet metal roofs... the right system for all types of roofing

S:FLEX ground mount systems

GROUND INSTALLATION

A stable and cost-efficient basis for profitable solar power plants on any substrate

S:FLEX systems

DOWNLOADS

Download our comprehensive system overview directly from here or in our Download area

S:FLEX planning tool

PLANNING TOOL

Our online tool makes it easy for our customers to create a detailed design of their PV frame system

S:FLEX Support

SUPPORT

Technical support for our roof installation frames and ground-mount systems for dealers and installers


S:FLEX - service in Germany and around the world

We started out in Germany. Today, we have branches and partners in many countries in Europe, the Middle East, the US and southern Africa. We supply wholesalers, project planners and installers who have already helped to create many megawatts of solar power capacity worldwide using our systems. The demands customers place on mounting systems are precisely the features that we focus on the most during product development and production:

  • Fast installation and easy handling
    with a maximum degree of pre-assembly and minimal tool use
  • Corrosion-resistant materials and "Made in Germany" production
    for a long, maintenance-free service life and complete recyclability
  • With certification and seal of approval
    S:FLEX mounting systems have been tested and certified in accordance with German and international standards
  • Full compatibility with different modules and roofs
    for flexible use on all kinds of roofing and all standard module types, framed and unframed, as well as for retroactive module replacement


Our system solutions for diverse applications are characterised by well-engineered components – such as universal, clickable module clamps, height-adjustable roof hooks for particularly narrow rafters and non-penetrative attachments for flat and metal roofs.

If you have any questions or require additional information, please use our contact form or call us. We look forward to adding you to our long list of satisfied customers.