[HH] concrete drilling & radar/x-ray question

[Tom Metro]

Stephen Ronan wrote:
> It looks as if a central run of conduit, with Ethernet to each floor
> to support a gateway, from top to bottom of the 8-story building
> would be very useful. Someone recommended that the concrete floors
> should be reviewed via x-ray or ground penetrating radar (GPR) prior
> to any drilling.

I gather a metal detector wouldn't help due to rebar? If you just needed
to detect live power lines, there are tools that can help with that.

Is the building so old that a review of the blueprints would be
impossible or insufficient?

 -Tom