Re: Roof Space detectors

["Paul" <someones-father-@xxxxxxxxxxx>]

Thanks for your input

Paul

"Robert L. Bass" <robertlbass@xxxxxxxxxxx> wrote in message
news:V_idnW3s4qQFmRvfRVn-og@xxxxxxxxxxxxxx
>> Ive fitted curtain detectors just under the
>> ceiling before and mounted them on their
>> side to give a full coverage over the roof
>> area from inside the shop instead of inside
>> the roof...
>
> I did the same thing to protect a warehouse whose roof had lots of long
> (~30' x 2') skylights.  We used Aritech "Little Reds" with curtain lenses,
> turned sideways.  It worked quite well for several years without falsing.
>
>> fittiing detectors in the roof is a bad idea...
>
> There were some detectors which we fitted to the underside of the roof in
> a store in a tough Hartford neighborhood.  Theives had previously broken
> in once by removing a roof ventilator and another time by tearing up the
> roof itself.  I installed Litton Polyscientific shock sensors on the under
> surface of the roof.  The next time someone walked on the roof when the
> alarm was set it went off.  Since there were no other occupants in the
> building except our customer this was OK.  If it had been a shared
> occupancy we would have needed a different solution.
>
> --
>
> Regards,
> Robert L Bass
>
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