Joscha Bostelmann started at Implenia as part of his dual study program. He explains why he would highly recommend the study + practice model to everyone and what challenges he is now mastering on the major Alster swimming pool façade construction project.
Joscha, you have completed a dual study program. Would you recommend it to others?
The dual study program is great! You have the theory, but also the practice and day-to-day work in a large construction company. You get to know all the departments there, be it costing, design, project management, production in the workshop or assembly on the construction site. Then you can see what you like best. I liked the calculation and project management best, where the projects are implemented. And that's where I continue to work now.
I work at Implenia Fassadentechnik in Hamburg and was involved in the restoration and renovation of the all-glass doors on the Alster swimming pool project, among other things.
What was the challenge in renewing the listed glass doors?
Like the entire building, the glass doors had to be replaced in line with the original design. As the old fittings had been exposed to the swimming pool air for decades, it quickly became clear that we would not be able to reuse them. We therefore decided to have new doors manufactured according to the old model. The challenge here was certainly the interplay between monument protection, function and aesthetics. We had to find a compromise so that all interests could be taken into account.
How did you reconcile the different requirements?
We decided to replace the floor door closers in order to have as little contact with the swimming pool water as possible. To do this, we integrated framed door closers above the doors, which were to disappear invisibly into the ceiling. However, the skylight had to be removed for this. We now have two floor-to-ceiling sashes with hardware that looks similar to the old doors and will hopefully last a long time. In this way, the door blends in with the vestibules in the old style.