Re: Ceiling speaker backboxes

["rb_ziggy" <richard.boreham@xxxxxxxxxxxx>]

Huh! I'd wondered what these were about

http://www.screwfix.com/app/sfd/cat/pro.jsp?ts=14826&id=56254

Now I know why!  The're being regulated in.  I could't imaging anyone
seriously building them in purely from choice.

Is it me or have Building regs been going seriously off the end of
the nanny scale of late?


--- In ukha_d@xxxxxxx, "Neil Fuller" <neil@f...> wrote:
> >>to try to
> > limit the ceiling structure as a route for the spread of fire
from below
>
> Indeed, speaking to my local Building Regs Officer, he tells me
that they
> are currently pushing for all holes in ceilings (he was
specifically
> thinking of downlighters)  to be sealed using suitable intumescent
liners.
>
> Some areas are even talking about requiring an unperforated
ceiling. His
> interpretation of this was that if you want to fit downlighters (or
> speakers) you would need to hang a suspended ceiling below your
existing
> ceiling.
>
> I'd be OK, I'm only 5'8" but I dunno about the 6ft + people. You
might have
> to dig up your floors if you want downlighters!!!! :-o
>
> The worlds going mad!
>
> Cheers
>
> Neil
> ----- Original Message -----
> From: "Davey" <DB1001@e...>
> To: <ukha_d@xxxxxxx>
> Sent: Monday, January 31, 2005 4:36 PM
> Subject: Re: [ukha_d] Ceiling speaker backboxes
>
>
> >
> > and a third reason for boxing in a bloody great hole in the
ceiling ( I'd
> > suggest PB and rockwool rather than kingspan/celotex) is of
course to try
> > to
> > limit the ceiling structure as a route for the spread of fire
from
> > below....
> >
> > Lets be safe out there...
> >
> > ----- Original Message -----
> > From: "Benfield, John (Penta)"
<john.benfield-eds@e...>
> > To: <ukha_d@xxxxxxx>
> > Sent: Monday, January 31, 2005 4:22 PM
> > Subject: [ukha_d] Ceiling speaker backboxes
> >
> >
> >>
> >> When installing speakers into ceilings is it worth creating
some
kind of
> >> back box for them. I was thinking of this for two reasons,
firstly I
> >> guess
> >> that it could improve the sound coming out of the speaker by
limiting the
> >> amount of air space behind this speaker and secondly to try
to
reduce the
> >> sound transmission to the room above. I was thinking about
either making
> > the
> >> boxes out of expanded sheet insulating material (such as
Celotex) or a
> >> simple plasterboard box with some rockwool/fibreglass around
it.
> >>
> >> JB
> >>
> >>
> >>
> >>
> >> Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >