While it’s cementious, transite ducts or even transite pipe used for heating flue vents is a potential asbestos hazard in buildings. Transite pipe typically contains about 15% to 25% asbestos fibers, typically fibrous chrysotile asbestos.

What is Transite flue pipe?

Transite pipe is an asbestos-cement product which was used for both HVAC ducts and for chimney or flue material to vent gas-fired appliances. This document assists building buyers, owners or inspectors who need to identify asbestos materials (or probable-asbestos) in buildings by simple visual inspection.

What is transite pipe made of?

Transite is a brand name for a clay pipe that is commonly found in older buildings. The official name of this clay pipe is Asbestos-Cement or AC.