Transite ductwork

[John Dirks Jr]

In making recommendations regarding in slab transite ductwork, what type of contractor do you think should be contacted? Asbestos abatement or other?

[Les]

Could go several ways. I would recommend hvac. Hvac would/should have knowledge of the condition and propose a solution. I suppose you could involve "everyone" (foundation person, asbestos person, code person, hvac person, scope person, etc.), but I favor simple.

[Scottpat]

In making recommendations regarding in slab transite ductwork, what type of contractor do you think should be contacted? Asbestos abatement or other?

In the report I would tell them to get with a qualified HVAC contractor. I would also note what the ductwork is and that additional professionals might be needed to resolve the issue. As Les said, keep it simple.

[John Dirks Jr]

As for what should be done, is abandoning the transite altogether the best course of action?

[Neal Lewis]

I've been told by remediation contractors that it can be sprayed/coated in place and still used as ducting.

[kurt]

Same here. Problem is, getting the sealant applied is problematic in long runs. Most companies just seal the edges of the hole feeding the register and a little ways either side of the hole.

Whether or not it's even necessary to seal the material is a very debatable question. This has much to do with perception, hysteria, and potential legal entanglements than with specific health risk.

[John Dirks Jr]

In my area, if it's slab on grade with registers in the floor and mid 80's or older , it's a good chance transite is there. It's easy to check for. I wonder how many inspectors don't check for it. I wonder if some claim the task is outside of SOP scope to pop the register grill out and look.

[Scottpat]

As for what should be done, is abandoning the transite altogether the best course of action?

I have never seen in-slab ductwork that is worth trying to save, it is always full of nasties!

[inspector57]

As for what should be done, is abandoning the transite altogether the best course of action?

I have never seen in-slab ductwork that is worth trying to save, it is always full of nasties!

Ditto - not many in my area but most are full of water. I'm not an alarmist about radon but I'm guessing this would almost guarantee high levels if it is a problem area.