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?
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?
A camera will not find anything inside the pipe – I have had the impression for a while now
https://www.hausbau-forum.de/threads/ablauf-wc-irgendetwas-stimmt-nicht.36509/
that your plumber simply has a misunderstanding about the spring stiffness of air columns. With roof vents, there is also a wind pressure issue – possibly the pipe ends just too low above the roof …
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
https://www.hausbau-forum.de/threads/ablauf-wc-irgendetwas-stimmt-nicht.36509/
that your plumber simply has a misunderstanding about the spring stiffness of air columns. With roof vents, there is also a wind pressure issue – possibly the pipe ends just too low above the roof …
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
guckuck2 schrieb:
It would be cheaper than the subsequent fire department operation to simply hire a drain cleaner to send a camera down the pipe.Good point about the fire department. From what I’ve seen so far, these devices produce too little smoke to be visible for my taste. But, of course, it could also generate a lot of smoke and cause problems.
The issue is that we’ve already inspected the pipe with a camera. We checked maybe 30 percent of the entire line. No defects were found there.
That’s why I’m asking about the ventilation. To me, that’s the only possible problem left.
11ant schrieb:
A camera won’t find anything inside the pipe – I have had the impression for some time now
https://www.hausbau-forum.de/threads/ablauf-wc-irgendetwas-stimmt-nicht.36509/
that your plumber simply doesn’t understand the spring stiffness of air columns. With roof vents, there is also a wind pressure issue – perhaps the pipe just ends too low above the roof ...11ant, I sometimes find it hard to interpret your irony and statements. We have a ventilation tray on the roof. Adjacent to it is a photovoltaic system (not above it). Could this cause any issues?Tx-25 schrieb:
11ant, I sometimes find it hard to interpret your irony and statements. There was no irony at all. It is a fact – and I suspect the root cause here – that many installers simply don’t have “physics” in their toolbox. Are we actually talking about the same pipe in both threads?
Tx-25 schrieb:
We have a ventilation pan on the roof. This is usually a rather short, stubby installation and doesn’t necessarily align with the wind conditions on your roof.
Tx-25 schrieb:
Directly adjacent to it is a photovoltaic system (not above it). No, in my assessment, its proximity is practically irrelevant.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/