14.06.2022 | PV/flat roofs

PV systems on a flat roof can be efficient and safe at the same time

In the examination of current practice below, we show you two individual solutions for flat roofs, together with the respective challenges which may be created by one’s own solar power plant. Discover the TAURUS rail system and the AIO lifeline system using Autohaus Nägele & Sohn GmbH and Autowelt Reibersdorfer as examples.

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Specialist series: Absturzsicherung auf PV-Anlagen

Guide for PV systems on the roof

Guide: Fall Protection Photovoltaic (PV)-System

This ultimate fall protection guide will help you to achieve a safe PV system on the roof. In the following, we summarise the danger areas on the roof, the liability issue and the safety solutions in a compact way. In addition, you will learn how you can generate more turnover as a solar installer.


Elektro Scherer puts its trust in the TAURUS rail system from INNOTECH

In its practical implementation, the roof installation of PV systems together with their associated fall protection repeatedly creates specific challenges. In the case of Elektro Scherer, a TAURUS rail system from INNOTECH was attached directly to the K2 substructure of the solar power plant.


How roof surfaces can be optimally used for the planned PV installation

With regard to PV installations on roofs, the question of competition for area often arises. This refers to competition between various types of use for the available area. The reason is that in principle all PV system operators want to free up the maximum possible amount of space for their solar power plant.


Why should you, as PV installers, also offer the fall protection system?

We invited experts to a discussion on the subject of fall protection for PV systems on flat and pitched roofs. In this blog post we go into the most frequently asked questions related to this topic.


Individual or collective protection? Which system is used when for PV installations on a roof?

While dangers like break-throughs or an increased fall risk close to the roof edge lurk on a flat roof, on a pitched roof the inclination itself is the greatest challenge. Discover in the following article how you can professionally protect your maintenance and cleaning staff.


A professional safety concept for PV installations protects the wallet and the nerves

As a solar system installer, you naturally know every detail of the legal safety provisions relating to PV systems on a roof. In contrast, your clients may well be entering completely new territory which probably raises a number of additional questions. It is therefore all the more important from the outset to integrate the subject of safety into the planning of the PV system, and to create a substantiated and professional safety concept.


Successful solar system installers are those who offer PV fall protection at the same time

Solar system installers who, in addition to the optimally appropriate PV systems, can also provide the best possible fall protection, not only have a better image than their competitors – they can also use this to create increased turnover.


Safety increases business for solar system installers as full service providers

PV systems on the roof have been booming for quite some time. No wonder, because having your own solar power plant on the roof not only gives you much more independence in terms of energy supply, but also makes a significant contribution to the energy transition as a whole. If you also focus on the issue of safety on the roof, then as a solar installer you can leave the competition behind. In this article, you will discover how you can achieve this.

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Supporting multiple PV customers simultaneously can often become a huge challenge

Not only private households, but also businesses and companies, are relying increasingly on generating their own solar energy. The presently escalating energy prices will hasten this trend even further. For solar system installers, this creates enormous potential for winning new orders. It can then very easily happen that multiple projects or construction sites have to be managed simultaneously. And that creates a number of challenges.


Work on a PV system on a roof

Installing one’s own PV system on a roof makes sense for a number of reasons. So that it always provides the best possible performance, workers regularly have to access the solar power plant in order to perform servicing and cleaning tasks. Who is responsible or liable for the consequences of accidents?


PV systems on a roof – consider all danger areas, in order to protect against falls effectively

The circumstances and conditions of every single order for a PV system on a roof must always be analysed very closely, in order to implement the correct safety precautions. Solar system installers who recognise all risks and can at the same time also propose the appropriate professional and certified solution to their customers have the opportunity to position themselves as a responsible absolute expert in their area. In the medium and long term, this also has a positive effect on the sales performance of solar system installers.


6 tips which help solar system installers to gain increased turnover from their PV installations on roofs

Even if the connection isn’t obvious at first glance, solar system installers and PV installation companies can acquire significantly more new customers with a partner who is a certified and professional manufacturer of fall protection systems for PV installations on roofs. The reason why is very simple: They are able to cover the subject of safety in the very first meeting with the customer, thereby relieving their potential clients of a large amount of research work.


Subsequent installation of a fall protection system for PV installations on the roof

It is never too late to make the right decisions and implement them! This means that even operators of PV installations on the roof should consider whether the subsequent upgrade of their solar power plant with a professional and certified fall protection system is feasible and sensible.


360° solutions as a guarantee for success

Solar system installers capable of including a safety solution with their PV systems hold a clear edge over the competition. You can find out why this is the case in the following article.


4 steps are necessary for professional fall protection on the PV system on the roof

Discover all the necessary information here. In this article, we explain in summary the four steps that will lead you to your fall protection for PV systems. This much in advance, everything starts with a plan...


The right fall protection creates more space for the PV system

Here is an example from practice. ADREX relies on its proven one-stop-shop principle, in order to largely relieve its customers of all tasks related to their own roof-mounted solar power plants. This obviously also includes the selection and installation of a professional fall protection system for the PV installation.


Correct servicing and inspection of your PV fall protection system protects you from many problems

The fall protection for your PV system on a roof is 100% safe only if it is also inspected regularly for signs of potential wear and tear, damage, or corrosion, and for loose mounts. Discover what matters.


The professional way to install a fall protection system for your PV system on the roof

The detailed planning of the fall protection system for your PV system on the roof is followed by what is probably the most tantalising moment of the endeavour to make your solar power plant as safe and efficient as possible: the installation; the project is finally taking concrete shape. Discover what matters in the process.


The installation of a fall protection system for your PV system on the roof requires a certain amount of expertise!

The same rules that apply in all other areas of life and work also hold true in the area of fall protection systems for PV systems installed on a roof: Solid initial and further training are of pivotal importance, especially when it comes to the correct installation and proper servicing / cleaning of the system and its individual solar panels.


The aspects to focus on when planning a fall protection system for the PV system on your roof

The goal to harvest as much power as possible from your own solar power plant therefore hinges on the ability to maximise the utilisation of the roof surface, while securing the trouble-free operation of the solar power plant for the long term. This requires a comprehensive plan which factors in all details and also includes a professional system that protects against falls from a height.


Fall protection systems for your PV system installed on the roof

There are questions that come up again and again when it comes to the safety of PV systems on the roof. We have summarised the 6 most frequently asked questions by installers and solar technicians and also show the challenges of PV systems on flat and pitched roofs. The focus is always on possible safety solutions to mitigate these.


PV systems on a flat roof can be efficient and safe at the same time

In the examination of current practice below, we show you two individual solutions for flat roofs, together with the respective challenges which may be created by one’s own solar power plant. Discover the TAURUS rail system and the AIO lifeline system using Autohaus Nägele & Sohn GmbH and Autowelt Reibersdorfer as examples.


5 tips relating to your PV system on the roof

How to save time and money. Installing a photovoltaic system on your own roof is always a good idea, because in this way a previously completely unused surface is availed of for the sustainable production of electricity for your household or company. But so that this success story really comes into being, as early as the planning phase of your PV system you should also create a professional safety concept, or get one created.


Professional fall protection for your PV system on pitched roofs

Installation tasks on the photovoltaic system, as well as its servicing and cleaning, represent a particular challenge. An selection of possible security solutions including advantages can be discovered in the following article. In addition, the topic of access to the PV system on the pitched roof is also covered.


Fall protection photovoltaics

Not all roofs are the same. In the same way that roof forms differ greatly, the dangers concealed during installation and servicing and cleaning tasks on PV systems are just as variable. For this reason, we present solutions for all cases here.

Aerial photo of the Novotegra company building in Tübingen, with integrated PV system

Innovative project in Tübingen

The combination of Novotegra’s PV substructure with INNOTECH’s flexible fall protection systems provides significant added value for both fitters and end customers.

This solution allowed us to approach the roof edge more closely, and thus to use significantly more roof area for solar panels.

Lothar Lagger

In the previous blog posts about professional fall protection for PV systems on a roof, much of the discussion related to basic facts, and these are of course very important in optimally protecting installers, solar technicians, and servicing and cleaning personnel, in the course of their work. In the examination of current practice below, we show you two individual solutions for flat roofs, together with the respective challenges which may be created by one’s own solar power plant.


The TAURUS rail system to protect PV systems on a flat roof

The Nägele & Sohn GmbH car dealership in Bietigheim-Bissingen sells principally the Peugeot and KIA car brands. In recent years, both these manufacturers have brought an increasing number of e-models onto the market. Because of the resulting increases in energy requirements, Bernd Nägele, owner and managing director of the eponymous car dealership in Germany, soon realised that he ought to install his own PV system on the flat roof of his company. And for two reasons: Firstly, to become more sustainable and environmentally friendly, and then also to make his car dealership more independent in terms of electrical power supply.  

Focus on employee safety

As a responsible entrepreneur, the safety of his 50 employees is always an important concern for Nägele. In all departments... and now also on the roof. For this reason, the car dealership owner also wanted to purchase absolutely professional fall protection for his PV system. Galicium Solar GmbH from Tübingen around Managing Director Thomas C. Koethe presented him with a solution from INNOTECH, the TAURUS rail system. This fall protection is mounted directly on the on-site photovoltaic substructure from K2 Systems.

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“This modern, complete solution convinced us immediately”, states Nägele. This provided the car dealership with a fall protection system for its PV installation, and it required no construction measures or encroachments in the building cladding whatsoever. In addition, this gave Nägele just a single contact partner, his PV installer. “And so there was a lot less need for consultation, and fewer tasks to coordinate or support”, he notes, satisfied about his decision. In addition, Nägele wanted his own solar power plant to be as efficient as possible, and therefore to use as much roof space as possible for the solar panels. In this regard too, the TAURUS rail system convinced him 100%. “Our customers are very demanding regarding the efficiency of their PV systems,” Koethe explained one of the issues on a flat roof, as safety naturally must always take top priority. “INNOTECH always provided us with full support on the roof,” relates a satisfied Koethe, looking back on the seamless, optimal planning process with the company from Upper Austria.


The AIO lifeline system as protection for PV systems on a flat roof

Also for Autowelt Reibersdorfer in Braunau am Inn, there is no end to the increasing electrification of mobility. That is why Herbert Reibersdorfer, managing director of the car dealership in Upper Austria, also decided to generate his own solar power on his flat roof, in order to cover the increasing power requirements of his workshops and sales areas – also as sustainably and independently as possible. And also for Lothar Lagger, project manager for PV systems at Fiegl + Spielberger, one of the major challenges was to make the PV as efficient as possible. And, above all, for this the safety had not to be overlooked. The specific situation on the flat roof of Autowelt Reibersdorfer suggested to him the use of the AIO lifeline system from INNOTECH, in combination with the PV substructure of K2 Systems.


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 4 Facts about generating the maximum output from your PV system

30% increase in performance

“This solution allowed us to approach the roof edge more closely, and thus to use significantly more roof area for solar panels. This allowed the system’s output to be improved significantly,” emphasises Lagger. Through the use of integrated fall protection, the PV system can produce a healthy 30% more power than would have been possible through the use of other solutions not permanently installed on the PV substructure, and therefore requiring more space. Using the integrated solution from INNOTECH, he was also able to ensure seamless safety on the entire roof. Above all, this is of fundamental importance for servicing and cleaning tasks, because only in this way can the solar power plant generate power optimally.

“INNOTECH always obtains the maximum in terms of safety. The level of service is very good too – during the installation we always had full support from the INNOTECH employees,” continued Lagger. And for him, the safety of his employees is a subject which he takes very seriously. A professional fall protection system optimally protects not only the operators of the PV system, plus its cleaning and servicing workers, but also the PV installers and solar technicians.



Every roof – whether flat or pitched – has its own very specific challenges when it comes to installing an efficient PV system equipped with an absolutely professional fall protection system. In the practical world, one sees all the benefits provided to operators of solar power plants by selecting the right safety solution: significantly more power and absolute safety during safety and cleaning tasks. Want to know more about the two reference projects? Then don’t miss the two videos below.  Also discover our free factsheet on this subject. 

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