How To Run Conduit From Basement To Attic

Okay fellas i replaced the main 4 soil vent stack from the basement up through the roof in my solid masonry 1942 colonial home.

How to run conduit from basement to attic.

I would like to run 1 1 4 conduit from the basement to the attic in a new house to run telephone and cable tv cables. Each room would have a wall plate but the end in the attic would be open. Could anyone explain the benefits of this conduit. When necessary use existing ducts or pipe runs to get wires from the attic into the basement.

The only spot i can run a pvc conduit from basement to well almost to the attic is alongside a forced air heating duct. On the first floor run wires up the wall from the basement. If you have access to your basement crawl space and attic you should be able to run wires without having to cut patch any drywall. Is this a fire issue.

I am in ontario canada. I only have the basic idea that it s going to run inside walls and can be used in the future for running wires from basement to each floor. Do i need to pack each end with some sort of fire stop. This pipe utilized a chase which is about 12 x 18 x 16ft high so there s plenty of room to run conduit for future electrical circuits or low voltage runs from the basement to attic if needed down the road.

Attics are much hotter than ambient so you now have two different ampacity situations to consider. Ambient temperature would apply running through walls or through a basement. Builder can put in an 1 1 2 pvc conduit from basement to attic for 412. In addition since you re exposing that feeder to attic temperatures you may have to increase the conductor size as per 310 15 a 2.

On the second floor run wires down the wall from the attic.