Dear Group,

I googled for this first ... maybe I'm too lazy .....

My brother in law has just built a small 2 storey extension - the downstairs
of which is an enlargement of the kitchen with a 10 foot opening. The
architect specified 100mm of fairly dense rockwool between the 18mm
chipboard and the 12.5mm ceiling board.

Since the kitchen is not a garage or similar, presumably this is for sound
insulation ?

The rooms above are a bedroom and a study

Since the existing half of the kitchen ceiling (seperated by steel beam) has
no insulation, is this required by building regs and subject to BCO
inspection ?
(and what are people's experience of its effectiveness at whatever it is
designed to achieve ...)

thanks

Jeremy

On Sat, 05 Mar 2005 18:10:55 GMT, a particular chimpanzee named
"brugnospamsia" randomly hit the
keyboard and produced:

My brother in law has just built a small 2 storey extension - the downstairs
of which is an enlargement of the kitchen with a 10 foot opening. The
architect specified 100mm of fairly dense rockwool between the 18mm
chipboard and the 12.5mm ceiling board.

Since the kitchen is not a garage or similar, presumably this is for sound
insulation ?

Yes. The requirements for sound insulation was extended in 2003 to
cover internal floors and some internal partitions. It is mostly
satisfied by mineral fibre between the joists.

Since the existing half of the kitchen ceiling (seperated by steel beam) has
no insulation, is this required by building regs and subject to BCO
inspection ?

It only applies to new work, therefore there is no requirement to
insulate the existing floor.
--
Hugo Nebula
"If no-one on the internet wants a piece of this,
just how far from the pack have you strayed?"

"Hugo Nebula" abuse@localhost wrote in message
...
On Sat, 05 Mar 2005 18:10:55 GMT, a particular chimpanzee named
"brugnospamsia" randomly hit the
keyboard and produced:

My brother in law has just built a small 2 storey extension - the
downstairs
of which is an enlargement of the kitchen with a 10 foot opening. The
architect specified 100mm of fairly dense rockwool between the 18mm
chipboard and the 12.5mm ceiling board.

Since the kitchen is not a garage or similar, presumably this is for
sound
insulation ?

Yes. The requirements for sound insulation was extended in 2003 to
cover internal floors and some internal partitions. It is mostly
satisfied by mineral fibre between the joists.

Since the existing half of the kitchen ceiling (seperated by steel beam)
has
no insulation, is this required by building regs and subject to BCO
inspection ?

It only applies to new work, therefore there is no requirement to
insulate the existing floor.

I've had a good read of part E and the 2004 amendments and it only appears
to apply to completely new parts of the building. However somebody
mentioned he was asked to do this for a new internal partition wall in an
existing building. Can you confirm this is not required in this case, or
point me to the paragraph that covers this.

Many thanks.

"Mike" wrote in message
...

"Hugo Nebula" abuse@localhost wrote in message
...
On Sat, 05 Mar 2005 18:10:55 GMT, a particular chimpanzee named
"brugnospamsia" randomly hit the
keyboard and produced:

My brother in law has just built a small 2 storey extension - the
downstairs
of which is an enlargement of the kitchen with a 10 foot opening. The
architect specified 100mm of fairly dense rockwool between the 18mm
chipboard and the 12.5mm ceiling board.

Since the kitchen is not a garage or similar, presumably this is for
sound
insulation ?

Yes. The requirements for sound insulation was extended in 2003 to
cover internal floors and some internal partitions. It is mostly
satisfied by mineral fibre between the joists.

Since the existing half of the kitchen ceiling (seperated by steel beam)
has
no insulation, is this required by building regs and subject to BCO
inspection ?

It only applies to new work, therefore there is no requirement to
insulate the existing floor.

I've had a good read of part E and the 2004 amendments and it only appears
to apply to completely new parts of the building. However somebody
mentioned he was asked to do this for a new internal partition wall in an
existing building. Can you confirm this is not required in this case, or
point me to the paragraph that covers this.


and you'd think they'd let you off where it's a bedroom over a kitchen ...

In my case it would make sense as I try not to heat parts of the house I
don't spend that much time in.

On Mon, 7 Mar 2005 19:43:50 -0000, a particular chimpanzee named
"Mike" randomly hit the keyboard and produced:

I've had a good read of part E and the 2004 amendments and it only appears
to apply to completely new parts of the building. However somebody
mentioned he was asked to do this for a new internal partition wall in an
existing building. Can you confirm this is not required in this case, or
point me to the paragraph that covers this.

See the Building Regulations, Regulation 4
(http://www.legislation.hmso.gov.uk/s...0/20002531.htm).
"Building work shall be carried out so that... it complies with the
applicable requirements contained in Schedule 1". This includes Part
E (Sound insulation).
Building work means, "the erection or extension of a building [or] the
material alteration of a building".

So, Part E applies to any work which involves the construction of a
new floor or applicable internal walls.
--
Hugo Nebula
"If no-one on the internet wants a piece of this,
just how far from the pack have you strayed?"