ᐅ Check Roof Ventilation – Suspected Incorrect Connection

Created on: 13 Dec 2021 13:31
T
Tx-25
Hello,

I would like to check our roof ventilation. I suspect that it is not functioning properly.
My plan:
I want to place a smoke bomb into the duct leading to our house from the inspection shaft, seal it from behind, and see if smoke comes out through the roof vent.
I am looking for the right product for this. So far, I only find devices that get hot or produce toxic smoke.

What should I be looking for?
Tolentino15 Dec 2021 09:07
Or just dry ice? There should be some water somewhere in the pipe.
Knöpfchen15 Dec 2021 17:47
In this case, a camera inspection would be the only proper solution.

If the main pipe is even slightly blocked due to standing wastewater, smoke might still pass through. However, the remaining open cross-section may still be insufficient for proper ventilation.

A pipe cleaning company can also document the situation for you to show if there is any problem.