Help, wet insulation in installation layer

[Marcussjogren]

Oh sorry - I understood it as also being in the insulation on the right side in the first picture and also in the second picture. Not just behind the plasterboard at the gate.

 

[useless]

When the diesel is burned, large amounts of gas are produced, which increases the pressure in the room. Since the ventilation was closed, the excess gas must find its way out through all the leaks that exist.

 

[Tebax]

Do you have any thermal bridge in the corner? The vent should keep the outdoor temperature. You get condensation on cold surfaces.

As for the gates, overhead doors are always installed on the inside, so that's completely correct.

I'm a bit suspicious if there's something wrong in the corners, as it pulls just at the bottom. It's roughly the same in all corners. There seems to be a small gap between the insulation and the stud. Could this become a problem? Now it's also -24c outside.

You were probably completely right about the diesel cannon, it feels much more comfortable inside now. The dehumidifier now shows 50%. Previously around 60-65%. And the wall/insulation seems to have dried up now; I've had the construction heater blowing for a couple of hours.

But I wonder if it will be the same again when I remove the construction heater.

Or could it be around the staples that it doesn't seal when I tape? Seems like it pulls around them..? It's only at the bottom there in the corners, nowhere else.

 

[Daniel 109]

When diesel is burned, large amounts of gas are produced, which increases the pressure in the room. Since the ventilation was closed, the excess gas must find its way out through all the leaks that exist.

No. That is wrong.
An oxygen molecule forms a carbon dioxide or a water molecule. Gases generally take up the same space per molecule, so the volume does not increase. Even if it did, it wasn't the gaps that were the problem. The condensation ended up inside the moisture barrier.

 

[Tebax]

There might be a thermal bridge there in between, seems to be a small gap between the insulation and the stud, what do you think about cutting a hole and blowing in some foam sealant in between there? Or is it a bad idea?

 

[Staffans2000]

You mean that even the exhaust from the diesel heater is released into the garage. I hope I'm misunderstanding, but it sounds like it!

 

[Daniel 109]

This is how the diesel cannons work. It's just a burner.

https://www.jula.se/catalog/bygg-oc...pvarmning/dieselvarmare/dieselvarmare-418026/

 

[vik_tor]

There might be a thermal bridge there between, seems to be a small gap between the insulation and the stud, what do you think about cutting a hole and spraying some foam in there? Or is that a bad idea?

I think you're on the right track that you have a thermal bridge in the corners in the form of a gap. Before taking action, I would personally find out if there's unreasonably high humidity in the garage.

Makes me wonder what the risks really are with the 1/3 rule when exterior thermal bridges are involved. The next construction scandal?

 

[Staffans2000]

Isn't it as simple as the cannon shooting out water vapor? Personally, I would never have thought of letting the garage be heated by carbon dioxide and water. No wonder it gets wet.

 

[Daniel 109]

Yes, that's how it is.

 

[Tebax]

I think you're on the right track with having a thermal bridge in the corners in the form of a gap. Before taking action, I would find out if the humidity level in the garage is unreasonably high.

Makes me wonder what risks there really are with the 1/3 rule when external thermal bridges are involved. The next building scandal?

What do you mean by 1/3?

The diesel heater has only been temporary, haven't got the underfloor heating working yet. Currently using a construction heater. 16c and the hygrometer says 51%, and on the dehumidifier, it fluctuates between about 45-50% now. The condensation has disappeared from the windows.

Could it be better if I add more insulation? So that it gets warmer against the plastic? I mean to continue insulating a bit more. Then the wall would be warmer. Maybe better in the corner then?