Interior and exterior plaster in winter

Hello everyone, I have a question, maybe someone knows about this. Now that our shell construction is finished, the plasterers are next. Tomorrow, the interior plastering is supposed to begin. The weather forecast predicts temperatures of 4 to 5 degrees in the next few days. At night, the temperatures are expected to be around freezing point, even down to minus 5 degrees the day after tomorrow. The site manager said that wouldn’t matter. If the temperatures rise again, the exterior plaster should also be applied right away. A friend told me today that this is total nonsense. If the interior plaster is applied to the walls now and then the screed is laid, there will be so much moisture in the house that it cannot escape if the exterior plaster is applied immediately afterward. Apart from the fact that it must never be colder than plus 5 degrees in the first days and nights. So if the exterior plaster is to be applied this winter, I can be sure that I will have mold in the house after some time. I should wait at least until spring. Sounds plausible. What do you think?

Your acquaintance is wrong, cold air can absorb a lot of moisture. Especially when plastering is done inside, the windows are obviously in place, so a higher temperature will prevail inside anyway.

A friend told me today that this is complete nonsense. If the interior plaster is applied to the walls and then the screed is laid, there is so much moisture in the house that it cannot escape if the exterior plaster is applied immediately afterward.

The moisture does not escape through the wall either way, but is removed by ventilation through opened windows. So the friend is mistaken.

It is also true that drying works wonderfully in winter because cold air is relatively dry.

As long as the processing guidelines of the plaster manufacturer allow the procedure, I see no problems.

Good evening everyone, I am just trying to make some progress here.

The house is sealed. Interior plaster (gypsum) was applied 4 weeks ago, screed (cement) was done on the Friday before Christmas. The underfloor heating is not running yet.

However, I want to start drying the house already. I have also procured 2 dehumidifiers and 2 3.3 kW electric heaters, but the heaters are too weak for 130 sqm over 2 floors, now to my question......

Am I allowed to bring the house up to temperature with a DIESELKANONE?

Since a gas cannon produces condensation water, it is ruled out.

If the exhaust is vented outside the house, which I assume, you can use a diesel heater. 6.6 kW should actually be sufficient. If it gets significantly above 20 degrees, the condenser also doesn't work as well anymore.

If the exhaust is specially routed out of the house, which I assume, you can use a diesel heater. 6.6 kW should actually be enough. If it gets significantly above 20 degrees, the condenser doesn't work as well anymore.

There is no raw exhaust attached. The cannon is electrically driven but burns diesel or heating oil. To my knowledge, please correct me if I am wrong.