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Another reason is that if you do it inside your flat (which many people do in Germany) and then do not open your windows enough there will be mold. Especially i

by kaybe 6y ago

Another reason is that if you do it inside your flat (which many people do in Germany) and then do not open your windows enough there will be mold. Especially in winter this can be a problem.

tikej 6y ago
It’s not true. If building has any reasonable ventilation (and it must have one in order to pass inspection and norms) it should has at least 3-4 air exchanges per hour. So drying inside wouldn’t make that much of a difference to cause mold by itself. It may be different if ventilation system is not functioning properly but in that case it should be fixed anyway.
- majewsky 6y ago
  Are you refering to German building codes here? Most German apartments that I know have no active ventilation system except in the bathroom and maybe the kitchen.
  - tikej 6y ago
    As far as I know, yes (although I don't live in Germany) but with disclaimer that it possibly allows old buildings to stay with the ventilation they were build with (which used to have decent ventilation via fairly poorly airtight doors and windows). It doesn't matter whether it's active (and by active you mean having ventilation hole in the room or fan?) or not – it should provide necessary exchange anyways. Maybe it's not true for the old buildings that weren't updated but in that case they are not healthy to stay in – whether with or without line drying.
clarry 6y ago
That can happen (look out for dew on windows), but usually the heating season leads to the air being too dry. That's uncomfortable and can e.g. damage wooden instruments.
throw0101a 6y ago
You'll probably get as much moisture in the air from a hot shower or boiling a bunch of pasta. Regardless of the source of moisture, this is a sign of poor construction via not using proper building science. The vapour barrier needs to be on the warm side of the insulation so there are no cold spots where condensation can occur.
- kaybe 6y ago
  I mean, sure, but many of the houses are old. The bathroom and kitchen usually have ways to deal with excess moisture, but no space to hang the laundry. The other rooms have space but no such provisions. However, if you don't start to modify things you can basically carry on forever by law (currently). (E.g. the wiring in our flat precedes the second world war, which is legal if you don't make changes. No, I don't approve.)

by kaybe 6y ago

Another reason is that if you do it inside your flat (which many people do in Germany) and then do not open your windows enough there will be mold. Especially in winter this can be a problem.

tikej 6y ago

It’s not true. If building has any reasonable ventilation (and it must have one in order to pass inspection and norms) it should has at least 3-4 air exchanges per hour. So drying inside wouldn’t make that much of a difference to cause mold by itself. It may be different if ventilation system is not functioning properly but in that case it should be fixed anyway.

majewsky 6y ago
Are you refering to German building codes here? Most German apartments that I know have no active ventilation system except in the bathroom and maybe the kitchen.
- tikej 6y ago
  As far as I know, yes (although I don't live in Germany) but with disclaimer that it possibly allows old buildings to stay with the ventilation they were build with (which used to have decent ventilation via fairly poorly airtight doors and windows). It doesn't matter whether it's active (and by active you mean having ventilation hole in the room or fan?) or not – it should provide necessary exchange anyways. Maybe it's not true for the old buildings that weren't updated but in that case they are not healthy to stay in – whether with or without line drying.

clarry 6y ago

That can happen (look out for dew on windows), but usually the heating season leads to the air being too dry. That's uncomfortable and can e.g. damage wooden instruments.

throw0101a 6y ago

You'll probably get as much moisture in the air from a hot shower or boiling a bunch of pasta. Regardless of the source of moisture, this is a sign of poor construction via not using proper building science. The vapour barrier needs to be on the warm side of the insulation so there are no cold spots where condensation can occur.

kaybe 6y ago
I mean, sure, but many of the houses are old. The bathroom and kitchen usually have ways to deal with excess moisture, but no space to hang the laundry. The other rooms have space but no such provisions. However, if you don't start to modify things you can basically carry on forever by law (currently). (E.g. the wiring in our flat precedes the second world war, which is legal if you don't make changes. No, I don't approve.)