S:FLEX LEICHTmount Rail 2.0 flat roof frame

Aerodynamic system
with extremely low surface load

For south and
east/west orientation

Trapezoidal sheet metal rail
with holes
and sealing tape
Fast, direct installation
with rivets or
sheet metal screws
S:FLEX Flat Direct
Pitched roof installation
without roof penetration
For foil,
bitumen or
sandwich roofs
S:FLEX pitched roof system
For all kinds of tiled roofing
With laterally and height-adjustable roof hooks
From rafter widths of just 36 mm

S:FLEX GmbH as a company and operator of this website takes the protection of your personal data very seriously. We treat your personal data as confidential and handle it in accordance with the legal data protection requirements of the latest GDPR (as of May 2018) as well as this Privacy Policy.
The following data protection information applies to data processing by:

Reinbeker Weg 9
21029 Hamburg

Data Protection Officer: Markus Roppiler

1. Collection and storage of personal data as well as the nature and purpose of its use

a) When visiting the website
When visiting our website, www.sflex.com, the browser in use on your end device automatically sends information to the server of our website. This information is temporarily stored in a so-called log file. The following information is collected and saved until it is automatically deleted (in this case, each dataset is anonymized before it is saved by changing the IP address):

  • anonymized IP address
  • date and time
  • browser type and version
  • operating system
  • page visited/name of the file accessed
  • volume of data transferred
  • URL of the referring website

The aforementioned data is processed by us for the following purposes:

  • to ensure well-functioning connection to the website
  • to ensure convenient use of our website, evaluation of system security and stability, as well as
  • for further administrative purposes

The legal basis for data processing is Art. 6(1)(1)(f) GDPR. Our legitimate interest for data collection is based on the purposes listed above. In no case do we use the data collected for the purpose of making inferences about your personal information. We also use cookies as well as analytical services when you visit our website. For more detailed explanations regarding this information, please refer to Section 3 (Cookies) and Section 4 (Analytical services) of this Privacy Policy.

b) When using forms
You have the option of communicating with us via online forms. A valid email address must be provided so that we know who the request comes from and so that we can respond to it. Other information can be provided on a voluntary basis.
The transfer of the form data is encrypted (SSL encryption) to ensure secure transmission.
Postal addresses and email addresses that are provided as part of requests, orders for informational material, or general contact are used exclusively for the correspondence. Data processing for the purpose of contact with us is carried out in accordance with Art. 6(1)(1)(a) GDPR on the basis of your voluntary consent. The personal data collected by us for use of the contact form is deleted upon request after the request you have submitted has been handled.

2. Disclosure of information

Your personal information is not transmitted to third parties for purposes other than those listed below. We only pass your personal data on to third parties if:

  • you have given your express consent pursuant to Art. 6(1)(1)(a) GDPR
  • the disclosure under Art. 6(1)(1)(f) GDPR is necessary for the purpose of the assertion, exercise or defence of legal rights and there is no reason for the assumption that you have a legitimate overriding interest in your data not being shared
  • if there is a legal obligation for the disclosure under Art. 6(1)(1)(c) GDPR, or
  • this is permitted by law and pursuant to Art. 6(1)(1)(b) GDPR is necessary for the performance of contractual conditions with you

3. Cookies

We use cookies on our website. These are small files that your browser automatically creates and that are stored on your end device when you visit our website. Cookies do not damage your end device, do not contain any viruses, trojan horses, or other harmful software.
Information is stored in the cookie, which in each case is derived from the specific end device used. This does not mean however that we directly receive knowledge of your identity.
The use of cookies on the one hand serves to improve your experience using our offered web content. We use so-called session cookies to recognize that you have already visited individual pages of our website. These are automatically deleted after you leave our website.
We also use temporary cookies that are stored on your end device for a certain specified period. If you visit our website again to use our services, it is automatically recognized that you have already visited us, what information you have provided to us, and what settings you have used, so that you do not need to enter this information again.
On the other hand, we use cookies to keep statistical data on our website and to evaluate this use for the purposes of optimizing the web content that we offer to you (see Section 4). When you visit our website again, these cookies enable us to automatically recognize that you have visited us before. These cookies are automatically deleted after a specified period.
The data processed by cookies are necessary for the purposes mentioned in order to protect our legitimate interests as well as those of third parties pursuant to Art. 6(1)(1)(f) GDPR.
Most browsers automatically accept cookies. You can configure your browser so that no cookies are stored on your computer, or a notification always appears before a new cookie is created. Complete disabling of cookies can however mean that you cannot use all the functions of our website.

4. Analytical services

The tracking methods that we use, listed below, are used on the basis of Art. 6(1)(1)(f) GDPR. We use these tracking methods to ensure needs-oriented design and continuous optimization of our website. On the other hand, we use tracking methods to statistically measure usage of our website and to evaluate this usage for the purpose of optimizing the web content we offer to you. These interests are considered to be justified within the meaning of the aforementioned provision.

Google Analytics
For the purposes of needs-oriented design and continuous optimization of our website, we use Google Analytics, a web analytics service provided by Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA; hereinafter called "Google". In this context, pseudonymized usage profiles are created and cookies (see Section 3) are used. The information generated by the cookie about your use of this website, such as

  • browser type/version
  • operating system used
  • referrer URL (the previously visited page)
  • host name of the computer used to visit the website (IP address)
  • time of the server request

are transferred to a Google server in the USA and stored there. The information is used to evaluate the usage of the website, to compile reports on website activities, and to provide further services related to website usage and services associated with Internet usage for the purposes of market research and needs-oriented design of our website. This information may also be transmitted to third parties if this is required by law or if third parties are contracted to process this data. Your IP address is not in any case combined with other data from Google. The IP addresses are anonymized so that attribution is not possible (IP masking).
You can prevent installation of the cookies through a corresponding setting in the browser software; please note however that in this case it may not be possible to use all functions of this website to their full extent.
You can also prevent the collection of the website usage-related data generated by the cookie (including your IP address) as well as the processing of this data by Google by downloading and installing a browser add-on: https://tools.google.com/dlpage/gaoptout.
Alternatively to the browser add-on, especially for browsers on mobile end devices, you can also prevent data collection by Google Analytics by clicking on this link:
disable Google Analytics.
An opt-out cookie is created that prevents future collection of your data when visiting our website. The opt-out cookie only applies to this browser and only to our website, and is stored on your device. If you delete the cookies in this browser, you must re-create the opt-out cookie.
For more information on data protection in connection with Google Analytics, please refer to the Google Analytics support pages: https://support.google.com/analytics/answer/6004245.

5. Right to obtain information

Pursuant to Art. 15 GDPR, you have the right to obtain information free of charge regarding your stored personal data, its origin, recipients, and the purpose of data processing. You also have the right to rectification, blocking, or deletion of this data. If you have any questions on this topic or any other topic related to your personal data, you can contact us at any time via the address given above.

6. Right to objection

You have the right to object to the processing of your personal data, the right to data portability, the right to revoke granted consent at any time, as well as the right to complain to a supervisory authority. If your personal data is processed on the basis of legitimate interests pursuant to Art. 6(1)(1)(f) GDPR, you have the right under Art. 21 GDPR to formally object to the processing of your personal data if there are grounds that arise from your particular situation or if the objection is made against direct advertising. In the latter case, you have a general right to object that is implemented by us without specification of any particular situation. If you would like to make use of your right to revocation or objection, an email sent to is sufficient.

7. Data security

We use appropriate technical and organizational security measures to protect your data from accidental or deliberate manipulation, partial or complete loss, destruction,or unauthorized access by third parties. Our security measures are continuously improved according to technological development.

8. Current valid version and changes to this Privacy Policy

This Privacy Policy is currently valid and was last updated in May 2018.
Further development of our website and offered content and services as well as changed legal or regulatory requirements may make it necessary to modify this Privacy Policy. You can access and print the currently valid Privacy Policy at any time at the website www.sflex.com.


Installation of photovoltaic systems always requires the appropriate mounting system. As a manufacturer of frame systems, S:FLEX offers international customers tailor-made solutions for all projects. Our engineers develop practice-oriented, future-proof and reliable products, and our technical team begins by advising the customer about the right installation system and components, before carrying out the design and planning, and ensuring on-time delivery to the building site.

We currently have the following vacancies (job descriptions in German only):

Please review our website's disclaimer/privacy notice.

The gerneral terms and conditions of sale and delivery will be send with each quote or upon request.


This page provides information about new products, news from our company and pictures for your PR work.

Current news:


Pictures from our press releases:

For journalists and editors, here are some printable photos and graphics to download. Please note: The provided images and logos may only be used for journalistic purposes. If you need additional material, please contact our press office:

When publishing, please send us a copy of the document. For online publications, please send the corresponding link by e-mail to our press office. Thank you.

System set tiled roof

S:FLEX system set
S:FLEX system set for installation on tiled roofs
JPG/ZIP, 300dpi, cmyk, 176KB

System set for pitched roof installation with roof hooks

S:FLEX pitched roof system
S:FLEX system set for pitched roof installation with roof hooks
JPG/ZIP, 300dpi, cmyk, 1,74MB

Flat roof system for installation in east/west orientation

S:FLEX flat roof system
S:FLEX system set for flat roof installation in east/west orientation
JPG/ZIP, 300dpi, cmyk, 1,1MB

Flat roof system for installation in south orientation

S:FLEX flat roof system
S:FLEX system set for flat roof installation in south orientation
JPG/ZIP, 300dpi, cmyk, 1,34MB

S:FLEX Flat Direct

S:FLEX Flat Direct
The low-ballast pitched roof system for non-penetrative installation on foil and bitumen roofs
JPG/ZIP, 300dpi, cmyk, 884KB

S:FLEX roof hook

New S:FLEX roof hook
The new wood screw and the roof hook for gap-free screw connections on roofs with rafters from 33mm
JPG/ZIP, 300dpi, cmyk, 1,61MB

LEICHTmount 2.0 S

LEICHTmount 2.0 S
The new version of the LEICHTmount 2.0 aerodynamic flat roof system for south orientation
JPG/ZIP, 300dpi, cmyk, 1,34MB

LEICHTmount 2.0 E/W

LEICHTmount 2.0 E/W
The new version of the LEICHTmount 2.0 aerodynamic flat roof system for east/west orientation
JPG/ZIP, 300dpi, cmyk, 1,1MB

S:FLEX Logos

The S:FLEX logo for print and web
JPG+PNG/ZIP, 300dpi+72dpi, cmyk+rgb, 156KB


Lutz Wolff
Lutz Wolff has held the position of Head of Technology at S:FLEX GmbH since 1 August 2014
JPG/ZIP, 300dpi, cmyk, 984KB



Information pursuant to § 5 German Telemedia Act (TMG):

Reinbeker Weg 9
21029 Hamburg
Local Court (Amtsgericht Hamburg), Commercial Register (HRB) 109167
Managing Directors: Bernhard Thiesbrummel, Ralf Müller-Maerz
VAT ID no. DE264448500

Phone: +49 (0)40 688 93 17 0
Web: www.sflex.com

Design, layout, and implementation
Pier 3 Marketing GmbH / www.pier3marketing.com



Liability for content
The content of our website has been prepared with great care. However, we cannot guarantee the correctness, completeness and topicality of the content. As a service provider, pursuant to § 7 para. 1 TMG we are responsible for our own content on this website in accordance with general laws. According to §§ 8 to 10 TMG, as service providers we are however not obligated to monitor transferred or saved third party information or to investigate circumstances that indicate illegal activity. Obligations to remove or block the use of information according to general laws remain unaffected. Liability in this regard is however only possible starting with the time of knowledge of a specific violation of law. When we are notified of such legal violations, we will immediately remove this content.

Liability for linked content
Our offered web content sometimes includes links to external websites of third parties, on whose content we have no influence. Therefore we cannot provide any warranty for this external content. The respective provider or website operator is always responsible for the content of linked pages. The linked pages were checked for possible legal violations at the time of the linking. Illegal content was not recognizable at the time of linking. Permanent monitoring of the content of the linked pages is however unreasonable without specific indication of a legal violation. When we become aware of legal violations, we will immediately remove such links.

The content and works created by the website operators on this website are subject to German copyright law. Copying, editing, distribution and any kind of exploitation outside the limits of copyright law require the written consent of the respective author or creator. Downloads and copies of this website are only permitted for private, non-commercial use. If the content on this website was not created by the website operator, the copyrights of third parties shall be observed. In particular, external content will be marked as such. If you nevertheless become aware of a copyright violation, we ask for a corresponding notice. Upon becoming aware of legal violations, we will immediately remove such links.

S:FLEX flat roof frames


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

S:FLEX pitched roof frames


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

S:FLEX ground mount systems


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

S:FLEX productsS:FLEX systems


Download our product catalogue and system overview directly from here or in our Download area

S:FLEX planning tool


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

S:FLEX 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.