Accessories
TopFit™ Details
Innovative TopFit™ System
Astron has developed a new concept for architectural finishes of industrial buildings. A set of smart details provides a solid technical solution with an aesthetical final touch and good thermal performance.
The innovative TopFit™ technology provides innovative building components, which are easy to install and at the same time deliver best performances, like absolute water tightness.
The TopFit™ system is available for 3 main operation areas:
- Opening area
- Corner area
- Flat area
With this solution, much assembling time can be saved on the jobsite. The installation is a lot easier, more flexible and therefore faster.
Most important of all, these superior products improve the sustainability of the building. All details are designed to provide continuous insulation and reduce thermal bridges to a minimum.
TopFit™ Benefits
-
Slim-fit design
with modern flat details for a high architectural demand -
High quality product
with full water tightness -
Sustainable solution
with homogeneous insulation reducing thermal bridges to a minimum -
Cost-efficient installation
due to reduced number of tailored parts -
Flexible timing
as the accesories can be erected indepently of the façade -
Beautifully aesthetic details
give the building a state-of-the-art appearance
With the innovative TopFit™ solution, Astron has developed a set of fully integrated, high quality products, providing better quality and insulation features and lower energy costs than other solutions.

Three effective TopFit™ systems

TopFit™ is an innovative solution for easy and fast to assemble façade finishes of industrial buildings. It can be used for any rectangular openings, windows, and personal doors.
For smaller windows, the TopFit™ solution is the easiest to erect. All flashings are cut to length. With just one “click“, the final opening is installed.
Different variations are available for multiple windows or bigger windows. All elements required for the interior and for the fixation are included.
For openings of personnel doors, we have a standard solution in place to smoothly integrate the door at a high quality standard, even for very thick walls or walls with sockets.
The solution for bigger openings, like for truck doors or for special machinery, also includes a special overhead door frame. This construction part guarantees full stability and best thermal insulation at the same time.
Standard colour
-
50
-
39
-
01
-
45
-
44

With the new TopFit™ corner solution, you can close the building corner in a smart way - having a superior insulation, perfect water tightness and a pleasing aesthetical appearance.
The TopFit™ corner solution is the ultimate finish for any building corner, both, in terms of building physics and aesthetics.
Several options are available to cover outside corners in the same way as inside corners. It is suitable for panel joints of 90°, based on 45° mitre cuts. Thick walls are no problem, they are also easy to cover.
Standard colour
-
50
-
39
-
01
-
45
-
44

The TopFit™ flat system is an elegant detail for any industrial building. It can be installed in the blink of an eye, guarantees a reliable and functional fixation and gives the building a clear, modern design.
Within the TopFit™ system, there are 2 solutions for flat details: at the building base and to cover panel joints.
The panel joint is the most visible detail of any industrial building. It is, therefore, highly important to install it properly.
The TopFit™ system enables effective and aligned fixation of the panels while maintaining continuous, homogeneous insulation. After the “click“, the whole substructure is hidden behind an elegant closer.
The base solution has been developed with a similar technique and is even easier to install. It works for any panel thickness.
The base module can also easily be „unclicked“ for thorough cleaning or in order to install paving and greenery.
Standard colour
-
50
-
39
-
01
-
45
-
44