Wolfratshausen
- Who would have thought two years ago that a virus would turn our lives upside down?
Covid-19 poses great challenges for mankind, calls for politics, healthcare and, last but not least, every individual.
And although the pandemic is far from over, the question arises as to what lessons we can learn.
Because one thing seems certain: after the pandemic is before the pandemic.
Rainer Kopnicky also thought of this in the course of a discussion in the Königsdorf municipal council about the planned new school gym.
Corona has made it clear that new ventilation concepts and the like will have to be taken into account in new buildings, said the town hall chief.
And indeed: Architects and engineers have long been thinking about how they can plan schools and public buildings, also in order to minimize the risk of infection.
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Ludwig Karl, architect and managing director of "karlundp".
© private
Much of what was previously in a mess is now getting the pandemic rolling.
“There is a huge rethinking”, says Ludwig Karl, graduate engineer, architect and managing partner of the architecture office “karlundp”, which is responsible for planning the renovation and expansion of the Wolfratshauser Hammerschmiedschule.
In schools, whether in sports halls or normal classrooms, the ventilation situation has so far been unsatisfactory, and this has been discussed in planning circles for a long time.
“That has to do with the fact that 30 people sit in a classroom, which is usually 60 to 80 square meters.
They consume a lot of oxygen. ”Normally,“ in such a scenario ”, an exchange of air every 45 minutes at full throttle through all windows for at least five minutes -“ which usually does not happen in winter or during double hours ”.
If the air exchange is too low, there is not enough oxygen in the air.
The students become tired and unable to concentrate.
We are talking about an air exchange of 25 cubic meters per hour.
That is an insane amount and not feasible with ventilation through windows.
Architect Ludwig Karl
Even before Corona, many experts were therefore in agreement that the air in classrooms is fundamentally too bad and that ventilation systems should be installed in schools.
“We're talking about an air exchange of 25 cubic meters per hour and person.
That's an insane amount of around 750 cubic meters in one hour per classroom and not feasible with ventilation through windows. ”Karl refers to a school project that his office recently completed - including a ventilation system.
Teachers and students "are now incredibly happy in times of Corona that fresh, but still warm air is constantly flowing into the building," says the architect.
Karl believes that the pandemic will open the door a little for him and his professional colleagues to future projects, so that planners no longer have to convince building owners with angels' tongues of the need for a ventilation system.
He notices that “now.
We are currently working on a school in Augsburg.
There was no longer any discussion of this topic at all. ”The same applies to office buildings.
In smaller open-plan offices, where people are known to rarely be able to agree on how often and for how long they should be ventilated, "it just makes sense," says the architect.
Ventilation systems are planned for two of his current projects - a district office and a town hall.
In sports halls, the automated supply of fresh air is also an option worth considering.
It is mandatory if the building is to serve as a meeting place in addition to sports - for example for municipal council meetings or theater performances.
Fire protection demands that.
“In that case, you have to make that investment, says Karl.
For a normal single gymnasium, the cost of a ventilation system, according to the expert, is “roughly 100,000 euros.
That is a lot of money, but money well invested ”.
As far as minimizing the risk of infection is concerned, the planners have another aspect to consider: Architect Karl speaks of a “dramatic change” in schools in recent years in terms of teaching.
He also recently discussed this with his colleagues on a construction project in Munich.
The traditional frontal teaching for a long time - teachers at the front of the blackboard, 30 students in two-person benches behind - are increasingly giving way to alternative learning concepts with differentiated teaching, according to Karl.
Children would be divided into smaller groups depending on their level of ability, inclination or project.
“This enables us architects, for example, to plan smaller niches in wider corridors in which three or four students can work together.
And also a second differentiation room. ”The result: Instead of a single classroom with 80 square meters, students ideally have three rooms with a total of around 100 square meters.
René Beysel gets the question about the effects of the pandemic on future building projects too early: The question will be "How the building regulations for school buildings will change due to Corona," says the head of the main office in the Tölzer district office.
There is no news yet.
The district is currently primarily concerned with the issue of ventilation of the rooms in its school buildings “and wants to accelerate the ventilation measures already planned as part of the genetic renovation.
At the moment the retrofitting of CO2 traffic lights is in progress in all classrooms and rooms of the schools in the district administration ”.
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