What kind of caulk to use ?

[greeno]

Hello,
I have this direct vent termination cap . As clear in picture, caulk around it is cracked. What kind of caulk do i use between metal and white plastic ? Should I use Vulken 116 here ?
Also, do I need to put caulk between Grey vinyl and white plastic ( frame) ? I dont see any caulk there either.
Please advise.
Thanks!

 

[Lennox65]

If everything was installed and flashed correctly, you would not use caulking anywhere around that termination. It probably wasn't done correctly, but there isn't much that you can do now without removing everything and starting over.

You definitely do not caulk between the grey siding and the white J channel. the siding needs to move as it expands with the heat and contracts with the cold.

 

[greeno]

Okay. Understood.
Thanks for the inputs.

 

[greeno]

If everything was installed and flashed correctly, you would not use caulking anywhere around that termination. It probably wasn't done correctly, but there isn't much that you can do now without removing everything and starting over.

You definitely do not caulk between the grey siding and the white J channel. the siding needs to move as it expands with the heat and contracts with the cold.

There are two reasons I am thinking to caulk boundaries between vent cap & frame ( metal & plastic).
1- It has cracked caulk all over it. It suggests there was caulking around those edges, to begin with.

2- we get cold air from the access panel at the bottom. I don't know what I can do to fix it. My thinking is to caulk edges around . May be, it will fix that cold air draft.