ᐅ Does the balcony above a bay window need to have a supporting frame?

Dear friends,

I’m uploading the picture shortly. We are building a Reineck house and have a balcony above the bay window. We don’t understand why the frame is so wide. To step onto the balcony, we have to take a wide step every time. When I asked the site manager (who can justify all the architect’s planning errors with regulations and DIN standards), this was the answer:

This upstand at the balcony door on the upper floor is correctly installed. As shown in the construction plans, a parapet of 25cm (10 inches) was specified here. This is necessary to properly seal the balcony on the exterior in accordance with DIN 18531 (flat roof guidelines).

Is this really necessary?

I’m looking forward to your answers.

It looks like a window sill; I've honestly never seen such a block before.

The insulation layer on the exterior is thicker than your screed on the interior. This creates a step. It is simply the most cost-effective way to implement this detail.

If you want to avoid this, the screed would need to be higher, which reduces room height and affects the stair construction. This preference should be communicated early, and additional costs will be involved.

hanse987 schrieb:

The insulation build-up on the exterior is higher than your screed on the interior. This creates the step. It’s simply the cheapest way to implement this detail.

If you don’t want this, the screed would have to be higher, which reduces ceiling height and affects the staircase construction. This request should be made early enough, and there will also be additional costs.

Regardless of the additional costs (which we would cover), what options do we have?

From my point of view, there are no major options left at this stage. What kind of flooring will be installed inside and outside?

What exactly did you discuss with your architect regarding this detail? I already pointed out to you last August that this kind of construction could occur here, as the parapet height was already shown as 25cm (10 inches) in the plan.

hanse987 schrieb:

In my opinion, there are no major options left at this point. What kind of flooring will be installed inside and outside?

What exactly did you discuss with your architect regarding this detail? I already pointed out to you last August that such a construction could result here, since the parapet height was already 25cm (10 inches) on the plan.

Exactly, I remember very clearly and I didn’t understand you back then. So I asked the architect. She said, like many others, it’s wrong. I assumed it was just one height, but not with a board in front like that.

Is there really nothing that can be done about it anymore?