Staffbull wrote:

On reading the plans it states wiring should not come into contact with

insulation, but requires the first floor to be insulated between joists

with rockwool !!

There are two issues here...

You don't want wires in contact with polystyrene insulation since the
plasticisers leach out of the PVC leaving a nice gooey mess and a cable
with defective insulation. The second issue is that cables in any other
form of insulation will probably need their correct rating de rated to
allow for the extra difficulty getting rid of heat. The first problem
is a no no, the second is acceptable so long as you check the design is
adequate in the circumstances.

--
Cheers,

John.

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