
This is a nuclear moisture survey in
progress on a modified bitumen roof system. Nuclear readings
are being taken at grid points that were laid out on the roof
surface. As the readings are taken, they are also recorded on
the drawing.

This nuclear moisture survey is being
conducted on a Ballasted Roofing System. The ballast has been
removed at the grid point locations so that the meter can be
placed directly on the membrane. On Ballasted Roof Systems
nuclear moisture detection is the only viable system to use.
Infra red will not work on this type of system.

This is a close up of a portion of the
drawing that shows dry, damp, and wet insulation. Notice that
core and photo locations are also shown.

This is a computer generated drawing showing
the roof plan on a nuclear moisture survey. Notice the grid
lines and the nuclear readings at the intersection points of the
grid. Notice also that the plan shows the location of all dry,
damp, and wet insulation.
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