N. Thornton wrote:
(Kevin) wrote in message
. com...
Has anyone else had any problems with LV Halogen downlights (20 watt)
melting their way through UPVC ceiling cladding?
Fortunately I had only done a small area of the ceiling but after
leaving the lights switched on for a large part evening, I noticed
the
problem.
I have some pieces of cementitious strip (similar to asbestos), which
I wondered whether I would be able to cut donuts out of to line the
holes either side of the UPVC. I'm not sure if I would be able to
keep them hidden beneath the fittings and still be effective.
Is there an easier solution anyone can recommend? The cladding is
effectively hollow so is there something I could inject into the
cladding which would increase its strength/heat resistance around the
areas I need to put the lights?
I have already bought all of the downlights and the cladding so going
for a different combination of materials would be my least desirable
option.

If the problems that bad you need a lot of extra margin, not just a
little. halogens are the hottest of all domestic light sources. I
would consider the option of fitting CFL downlighters, these produce a
fraction of the heat.

Actually I wouldnt fit downlighters at all, nor PVC, but I understand
theyre what you want.

I assume that the PVC wouldn't drip onto people below in the event of a
fire....?