Is grounding rebar in concrete slab required by NEC?

[hornetd]

Nope. You need to reread what the code actually says, not what you think it says.

Your right of course but I would assert that I wasn't reading the NEC to mean what I want it to say. I simply made a mistake. A good principle to apply here is "Never attribute to malice what incompetence will adequately explain." I wrote an incompetent statement by rushing through a posting I was trying to get done in too much of a hurry. Again I made a mistake. It was not intentional. I'm sorry for the confusion I may have caused.

 

[ptonsparky]

Your right of course but I would assert that I wasn't reading the NEC to mean what I want it to say. I simply made a mistake. A good principle to apply here is "Never attribute to malice what incompetence will adequately explain." I wrote an incompetent statement by rushing through a posting I was trying to get done in too much of a hurry. Again I made a mistake. It was not intentional. I'm sorry for the confusion I may have caused.

That's at least 4000 down on the Forums 'Oops List'.

 

[hornetd]

Sounds like you are describing an Alaskan Slab. The typical installation would require vapor barrier and insulation thus become non usable for a CEE. See Typical installation illustrations:
View attachment 2575176
View attachment 2575178

Your first illustration does not show the vapor barrier extending under the footing. Your second illustration does show it extending under the footing and about well beyond that with foam insulation underneath the footing coming out a full 4 feet.

Question: Does the second illustration show an actual building code requirement or is it just an example of 1 technique?

 

[Fred B]

Your first illustration does not show the vapor barrier extending under the footing. Your second illustration does show it extending under the footing and about well beyond that with foam insulation underneath the footing coming out a full 4 feet.

Question: Does the second illustration show an actual building code requirement or is it just an example of 1 technique?

It is a requirement here but may not be complied with in some cases as there are still a lot of "Don't tell me what to do" mentality out there and no enforcement.