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When should you choose an insert mounting system?

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Inlay solar panels: when should you choose (and when should you avoid) an insert mounting system?

Insert mounting systems for solar panels are rapidly gaining popularity. This is not only due to their sleek, architectural appearance, but also because of their efficient installation on large roof surfaces. However, an insert system isn’t the right choice for every project. Those who focus solely on aesthetics often overlook important technical and practical considerations.

In this blog, you’ll discover when an inlay system like ProMount INLAY is the right solution, and when a traditional mounting system performs better.

What is an insert system for solar panels?

An insert system ensures that solar panels are placed within a continuous profile, rather than clamped on top of profiles. This results in a sleek and uniform appearance with no visible gaps, while still allowing the panels to be easily slid in and out of the profile without clamps or having to remove adjacent panels.

Important distinction: an insert system is not the same as an “in-roof system.” In an in-roof system, panels are placed between or in place of roofing materials such as tiles or steel decking. In an insert system, the panels lie ON the roof, slid into a profile.

The ProMount INLAY system is a good example of this. Thanks to its clamp-free design and integrated cable clips, it delivers a visually clean result and efficient installation. Furthermore, the system allows for compact installation: because the space between the profile and the panel acts as an expansion joint, larger interconnected fields can be constructed without additional joints.

Why do installers choose INLAY?

There are many reasons to choose an insert system, and they depend heavily on the type of roof and project.

On steel and corrugated roofs such as agricultural buildings and industrial sites—installation speed is the biggest advantage. The system is ideally suited for efficient task allocation, allowing the assembly and installation of the panels to proceed seamlessly. This makes large-scale installations particularly efficient. Furthermore, the number of components required on steel roofs is very limited, which is a clear USP.

On tile roofs, aesthetics are often the deciding factor: the visual integration of the panels into the roof surface ensures a high-quality finish that offers clear added value for architecture-sensitive projects, homes, offices, and exposed roofs. But aesthetics or speed alone are not enough to make the right choice.

When is an insert system less suitable?

Although insert systems score highly in terms of speed and aesthetics, they aren’t always the best technical solution. There are three situations in which you should consider an alternative.

  1. Complex roof structures On roofs with many interruptions, varying pitch angles, or obstacles (such as chimneys or dormers), an insert system loses its efficiency advantage. The strength of an insert system lies precisely in its uniform, continuous installation. The more complex the roof, the less this advantage applies.
  2. Need for flexibility during expansion A classic mounting system with clamps offers more flexibility when panels of a different size are added. If you want to expand the system later with other panel sizes, a traditional system is easier to adapt.
  3. Tile roofs without aesthetic requirements On tile roofs, an insert solution requires more components and more precise preparation. When aesthetics are not a priority, the extra effort may not outweigh the benefits.

When is ProMount INLAY the right choice?

The choice of an insert system depends heavily on the roof type and the project objectives. On tile roofs, where aesthetics are paramount, an insert system ensures a sleek and architecturally pleasing final result. For large steel or corrugated metal roofs, such as those found in agricultural and industrial applications, the added value lies primarily in the high installation speed and the limited number of components. With ProMount INLAY, you can combine efficient installation with a visually striking result.

The right choice starts with the right analysis

The choice between an insert system and a traditional mounting system isn’t a matter of taste, but of context. Every roof, every project, and every customer requires a different approach.

For installers, this means looking beyond aesthetics alone. By taking into account the roof type, installation objectives, and future flexibility, you can make a technically sound choice that pays off in the long run.

Not sure if an insert system is the right solution for your project? Discover all the possibilities of ProMount INLAY and make the right choice from the start.

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