How To Run Conduit From Basement To Attic

Attics are much hotter than ambient so you now have two different ampacity situations to consider.

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. The only spot i can run a pvc conduit from basement to well almost to the attic is alongside a forced air heating duct. 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. Could anyone explain the benefits of this conduit.

On the first floor run wires up the wall from the basement. Ambient temperature would apply running through walls or through a basement. I am in ontario canada. 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.

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. It s just the meter outside mounted on the exterior of the home then the wires run up the studs into the attic then down into the utility room where the breaker panel is located. Okay fellas i replaced the main 4 soil vent stack from the basement up through the roof in my solid masonry 1942 colonial home. 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.

Are there code issues with this idea. On the second floor run wires down the wall from the attic. Is this a fire issue. I would also like to run conduit in each room on the top floor to the attic.

When necessary use existing ducts or pipe runs to get wires from the attic into the basement.