No differential lock?

[Ludvig1987]

Hello.

A while ago, I bought and renovated parts of a house for the first time. I've done several parts so far and now I have some questions, mainly about vapor barriers. The house is from 1924.

I tore down both the ceiling and walls in the hallway which were made of Tretex; the ceiling on the upper floor is against a cold attic and had Tretex directly against the rough boarding. I have now put gypsum plasterboards throughout the space directly against the rough boarding. In the ceiling, I mounted 22mm battens to install spotlights and then put gypsum on it. There was nothing behind the Tretex during demolition, so I didn't think much about it at the time. Should I have installed something before I put up the gypsum? One of the walls in the hallway is an exterior wall. The house has been additionally insulated from the outside by previous owners if that matters.

 

[Jonatan79]

In such old houses, it's a good idea not to change the construction. You don't need to install a vapor barrier/plastic in a hallway. Possibly in the ceiling in a bathroom or laundry room where you have a lot of moisture you don't want to release into the attic.

 

[Ludvig1987]

In such old houses, it's good not to change the construction. You don't need to install a vapor barrier/plastic in a hall. Possibly in the ceiling of a bathroom or laundry room where you have a lot of moisture you don't want to let up into the attic.

Thank you for the response. I was unsure. No, that is probably the biggest change I have made. In other rooms, I have skim-coated the tretex. In the bathroom, no vapor barrier was installed in the ceiling towards the cold attic either, instead, it was framed down and spotlights were also installed there with hutonit ceiling instead. A bathroom fan was installed that starts with moisture, which according to the carpenter should be sufficient.

 

[Ludvig1987]

In houses that old, it's good not to change the construction. You don't need to install a vapor barrier/plastic in a hallway. Possibly in the ceiling of a bathroom or laundry room where you have a lot of moisture you don't want to let up into the attic.

The reason I started thinking about this is mainly that one of the walls in the hallway is an exterior wall and there is a cold attic above. I didn't consider this when doing the work but am now wondering if I might have caused any damage in the long run.

 

[karlmb]

In such old houses, it's a good idea not to change the construction. You don't need to install a vapor barrier/plastic in a hallway. Possibly in the ceiling in a bathroom or laundry room where you have a lot of moisture that you don't want to release into the attic.

Why not then? Physics says that a moisture barrier is good. Why is it bad just because the house is old?

 

[useless]

Old houses do not adhere to the laws of physics. This has been a well-known fact for a long time on the forum.