Re: Roof Couplings for inspectionFrom: S 
Date: Wednesday, January 30, 2008
Time: 8:18:01 AM
Remote Name: 22.214.171.124
CommentsThe fitting in question can be found here:
You could also use other types of threaded couplings or half-couplings. The intent is to cut a small hole in the roof, weld the coupling over it, use that as a cable support point for a sky climber, and then plug it with a threaded steel or plastic plug when completed.
Sky climber here:
Access arrangements like this should be coordinated with the one doing the work inside. Painter's rails, rolling scaffolds, or manlifts are other options, depending on the configuration.