Sealing between weather vane and sheet metal

[stf01]

Hello,

I have a chimney (brick masonry) that is not in use, clad in metal and otherwise sealed. Except at the top where there is a weather vane
Type: https://www.soliduct.se/vindflojel-...WTK_YDs8-9OIc9os1q8OETX_S37yFsQ0aAmnVEALw_wcB

When it rains, a little water leaks in between the vane and the metal, so it runs down into the fireplace, and since this is not used, it feels inappropriate.

Is it a good idea to seal with the product below?
Sikaflex 291i
https://www.clasohlson.com/se/Sikaf...IX2V_T0FuPfB-qE1jDUo14aAlC6EALw_wcB#undefined

 

[Liteavvarje]

Is it under the foot where it leaks? It might be screwed into the metal sheet on the chimney.
Loosen the screws, place a strand of sika in between in the same line as the screws are positioned,
to add more screws.

 

[stf01]

It's like a hole at the top of the sheet (at the very top of the chimney) that is open straight up to the sky, in which the weather vane has been placed, which actually has more of this design (not the one I linked to first)
ABC-Dansare_stor.jpg

Between the sheet and the weather vane/dancer, there's a joint, hard to explain, I'll have to take a picture!

But imagine that the sheet metal around the chimney looks like this without the "cap"
skorstensskydd.jpg

 

[Liteavvarje]

You don't use the chimney for burning, but how about natural ventilation? Old houses have it through the chimney and need it. On one of the flues, you have a spinner that ventilates, are all the other flues closed? If the spinner is round at the bottom, take it to a sheet metal worker and tell them the chimney's dimensions, so they can roll it in to make it tight. The issue is that it wobbles a bit in strong winds and will eventually fatigue the attachment in the metal; it might crack. Perhaps a longer pipe is needed down the flue attached to the spinner to stabilize against lateral movements.

 

[stf01]

Thank you for your answers. The house is from the 70s with supply air vents and exhaust in the kitchen and bathroom, and we have another fireplace that we use.

Here are some pictures!

Here's the hole in the sheet metal, weather vane removed:
https://image.ibb.co/mNe5hb/IMG_3354.jpg

The weather vane is quite elongated, maybe 20-30 cm:
https://image.ibb.co/hMvd2b/IMG_3353.jpg

This is what it looks like when you put down the weather vane:
https://image.ibb.co/enAZaw/IMG_3352.jpg

And now it's down:
https://image.ibb.co/n2Ynvw/IMG_3351.jpg

I'm 99% sure it's leaking at the corners.

Sorry for the picture quality, balancing with a flashlight in my mouth, camera in one hand, and the weather vane in the other.

Should I apply Sika around, but especially in the corners?

Best regards, J

 

[Liteavvarje]

Wipe it dry, and place it as mentioned earlier in between, so it will be fine in the winter.
And you can decide next year how to proceed,
If you remember by then

 

[stf01]

Wipe it down so it's dry, and place it as mentioned earlier in between, so it'll get through the winter safely. And you can decide next year what to do,
If you remember then

Isn't it a sustainable solution with sealant there?

What is better, a chimney cover or some other form of sheet metal work?

 

[Liteavvarje]

It's not a sustainable solution to use sealant there?

What's better, a chimney cap over some other form of metalwork?

I haven't said that either but it lasts over the winter, can last a long time, but I believe the metal will eventually give in when the spinner wobbles in the wind, the spinner is an excellent thing for vent
otherwise, a metalworker