Construction work description - Thin slab foundation disadvantageous?

Only up to 82 cm - that's little, right? What are the concrete practical disadvantages of such narrow doors?

The nominal width of 88.5 (= passage width 82) is still the current standard for interior doors, except for "senior-friendly planning," and the trend in height is towards 213.

What are coupled windows? The patio doors, right?

Window profiles are often stock items with a maximum length of 2.40 m (due to processing machines, 6 m is rarer). Coupling means joining several elements together with connecting pieces, for example, combining a double-leaf patio door and a single-leaf into a triple-leaf unit.

Here I have not the slightest idea whether this is good standard? 50 cm overhang possibly too little due to weathering of the exterior walls?

50 cm overhang is tolerated in all state building regulations, more can possibly trigger distance rules, i.e. with already closely built plots the actual house becomes smaller.

Only up to 82 cm – that is little, right? What are the concrete practical disadvantages of such narrow doors? Apart from possibly not getting some sofas through.

82 cm should be the inner dimension, which is about 90 cm in the raw construction. That is absolutely common. A sofa can possibly also be brought in through the patio door and for upper floors usually the stairs are the limiting bottleneck and not a door.

Oh cool, you have already helped me with that, thanks!

Only up to 82cm – that’s little, isn’t it? What are the concrete practical disadvantages of such narrow doors? Apart from possibly not getting some sofas through. In everyday life?

Narrower doors do not only have disadvantages but also advantages: they are lighter (a minor point), but the great thing is that when open they don’t protrude too much into the interior space.

50cm overhang maybe too little due to weathering of the exterior walls?

From 50cm distance this is counted as built-up area.

Not the roof itself, but because "plaster turns green if it always rains against it" or does that only happen with ETICS?

Less rain, it is mostly dew that doesn’t dry off in the North. A mineral plaster, for example, helps against that. Almost everything can be upgraded... the base slab must be according to the assessment, mineral plaster is recommended, doors can be upgraded, window upgrades are desirable. 20-30,000€ can accumulate quickly. That is the general tenor and main topic here in the forum: don’t trust the catalog price.

Less rain, more it is the dew that does not dry off in the north. Mineral plaster, for example, helps against this. [...] Mineral plaster should be

The external plaster (color white) is applied with fiber-reinforced lightweight base plaster and pigmented synthetic resin top coat as a panel plaster. The base is protected against splash water and provided with a colored stone plaster up to approx. 30 cm above the existing ground.

How should the external plaster be assessed then? Thank you and regards

Synthetic resin plaster has the advantage of being flexible. It does not absorb moisture, so it tends to [Algenbildung]. A fungicide can reduce [Algenbildung] in the first years.