Quote:
Originally Posted by PFC5
Running an open conduit from lower floors up to higher floors or an attic is usually against fire code regs, since it will bypass the fire blocks built into more recently built houses. By doing this, it would allow fire to travel through the various floors of a house faster, AND provide fresh air intake to help a fire breath and spread faster. 
I wanted to do this by having the builder of my house run a conduit from my basement to my attic 3 stories up to make it easy to add more cables, etc later put the building inspector would not allow it and that was 20 years ago for this very reason. I could have added it afterwards myself but that would increase the danger for my family so I do it the old fashion way and have had to snake wire or run it inside the J channel of my vinyl siding to the attic. |
I'll have to check into this.
For the moment I'll have to plead ignorance suspecting that
1) You're odd as you have a 3 story dwelling
2) If you do this, you might need a firestop (I think fiberglass counts)
3) You might be golden if you plug the hole (cap, spray foam with light oil so you can remove/replace the spray foam)
But I mainly thought it this not being an issue because generally speaking one/two family dwellings don't need firewalls.
But to be clear, you bought up a damned good issue that might be a code violation.