[Antennas] Using roof effectively - dipole or loop?

[Ian Wilson]

Living in an antenna-restricted neighborhood, I believe I can get away with
wire that physically lies on
the roof (thin concrete tiles over wood and felt).  I want to work 10m
through 40m.  My alternatives
seem to be:

  - 53' dipole on the ridgeline of the roof (at about 30')
  - 50'x25' loop around the edge of the roof (at about 25')

In either case I'll be using ladder line to a tuner in the shack.

Loop+ladder seems to be the current preference, but I wonder whether the
additional height of the
dipole and its distance from the concrete tiles will outweigh the advantage
of the loop?  Anyone tried both
approaches?

73 de ian k3imw/6