does anyone know of a good on-line site giving details of how to
construct cavity walls


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"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@mygate .mailgate.org...
does anyone know of a good on-line site giving details of how to
construct cavity walls

One brick width gap.

External skin / width of brick / internal skin

BigWallop wrote:
"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@mygate .mailgate.org...
does anyone know of a good on-line site giving details of how to
construct cavity walls

One brick width gap.

External skin / width of brick / internal skin

Conventionally laid in rows, starting at the bottom...

In article ,
"Steve Walker" writes:
BigWallop wrote:
"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@mygate .mailgate.org...
does anyone know of a good on-line site giving details of how to
construct cavity walls

One brick width gap.

External skin / width of brick / internal skin

Conventionally laid in rows, starting at the bottom...

It's not a bad idea to tie them together occasionally too.
A number of Wilson Connolly new home owners have discovered
what happens when this isn't done...

--
Andrew Gabriel

"Andrew Gabriel" wrote in message
.. .
does anyone know of a good on-line site giving details of how to
construct cavity walls

One brick width gap.

External skin / width of brick / internal skin

Conventionally laid in rows, starting at the bottom...

It's not a bad idea to tie them together occasionally too.
A number of Wilson Connolly new home owners have discovered
what happens when this isn't done...

For real ? How on earth wasn't that picked up at BC inspection ? And
what sort of brickie doesn't use ties ?

In article ,
"Mike" writes:

"Andrew Gabriel" wrote in message
.. .

It's not a bad idea to tie them together occasionally too.
A number of Wilson Connolly new home owners have discovered
what happens when this isn't done...

For real ? How on earth wasn't that picked up at BC inspection ? And
what sort of brickie doesn't use ties ?

I don't think the BC inspect every house on a housing estate.
The BC fees for a housing estate are full fee for the first
house, and then only a tiny fee for each identical house.
It wasn't just BC that missed it, so did Wilson Connolly's
own inspector and the NHBC inspector, but then that really
comes as no surprise.

A brickie doesn't use ties if the builder will only employ
him if he actually lays the bricks without arguing and the
builder doesn't supply enough ties. There was a builder on
You and Yours (radio 4) some months back, and he said that
houses being built in the UK at the moment are built to the
lowest quality he's ever seen during his whole career in the
building trade.

--
Andrew Gabriel

"Mike" wrote in message
...

"Andrew Gabriel" wrote in message
.. .
does anyone know of a good on-line site giving details of how to
construct cavity walls

One brick width gap.

External skin / width of brick / internal skin

Conventionally laid in rows, starting at the bottom...

It's not a bad idea to tie them together occasionally too.
A number of Wilson Connolly new home owners have discovered
what happens when this isn't done...

For real ? How on earth wasn't that picked up at BC inspection ? And
what sort of brickie doesn't use ties ?

Most on-site trades are not qualified or experieneced, only the gas side is,
because of the corgi quals.

Steve Walker wrote:

BigWallop wrote:

"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@myga te.mailgate.org...

does anyone know of a good on-line site giving details of how to
construct cavity walls


One brick width gap.

External skin / width of brick / internal skin


Conventionally laid in rows, starting at the bottom...


with fiberglass batts in between for warmth...

...tied together occasionally with ties...

"BigWallop" wrote in message
. uk...

"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@mygate .mailgate.org...

does anyone know of a good on-line site giving details of how to
construct cavity walls

Do a Goggle on "cavity walls" and construction and lots comes up. Learn how
to use Google.


One brick width gap.

External skin / width of brick / internal skin

If one width brick gap then insulation must be installed.

"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@mygate .mailgate.org...

does anyone know of a good on-line site giving details of how to
construct cavity walls

Why? Why build two walls when one can do. There is nothing in the regs
that says cavity walls "have" to be built. The Germans think we are mad.
Build one strong skin and use the rest of the space taken up by the other
skin for insulation to drop your heating bills substantially. Don't just do
what the other dickheads do. Think!

"Doctor Evil" wrote in message
...

"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@mygate .mailgate.org...

does anyone know of a good on-line site giving details of how to
construct cavity walls

Why? Why build two walls when one can do. There is nothing in the regs
that says cavity walls "have" to be built. The Germans think we are mad.
Build one strong skin and use the rest of the space taken up by the other
skin for insulation to drop your heating bills substantially. Don't just
do
what the other dickheads do. Think!

But make sure you allow for a moisture barrier between the skins or layers
of the wall, or you'll end up with dampness creeping through the outer skin
/ layer and in to your internal skin / layer.

A ventilated cavity is a simple method to prevent this from happening.
Funnily, this is a method also used by the others that laugh at us, so is
pretty well a universal method of preventing moisture ingress through a
buildings outer skins and insulating materials.

"BigWallop" wrote in message
. uk...

"Doctor Evil" wrote in message
...

"Lawrence Zarb" wrote in message
news:ab311db328d41a2c533c3e11bd589a01.52329@mygate .mailgate.org...

does anyone know of a good on-line site giving details of how to
construct cavity walls

Why? Why build two walls when one can do. There is nothing in the regs
that says cavity walls "have" to be built. The Germans think we are
mad.
Build one strong skin and use the rest of the space taken up by the
other
skin for insulation to drop your heating bills substantially. Don't
just
do
what the other dickheads do. Think!

But make sure you allow for a moisture barrier between the skins or layers
of the wall, or you'll end up with dampness creeping through the outer
skin
/ layer and in to your internal skin / layer.

And make sure the outer skin is waterproof, as with all walls.

A ventilated cavity is a simple method to prevent this from happening.
Funnily, this is a method also used by the others that laugh at us, so is
pretty well a universal method of preventing moisture ingress through a
buildings outer skins and insulating materials.

Cavities are not universal. Only in coastal wind blown regions are cavities
used and the they use render on the outside to seal in the walls; Cornwall,
Brittany, etc.

In article ,
"Doctor Evil" writes:

Cavities are not universal. Only in coastal wind blown regions are cavities
used and the they use render on the outside to seal in the walls; Cornwall,
Brittany, etc.

That was true around 1880.

--
Andrew Gabriel

"Andrew Gabriel" wrote in message
.. .
In article ,
"Doctor Evil" writes:

Cavities are not universal. Only in coastal wind blown regions are
cavities
used and the they use render on the outside to seal in the walls;
Cornwall,
Brittany, etc.

That was true around 1880.


Well actually I hate to say this but if you look at all construction
processes used around the globe today, IMM is on average correct. Cavities
are one way of achieving the goal described earlier in the thread and they
work very well, but some places have more over-riding problems such as
earthquakes and so the insulating and damp-rejection has to be achieved in a
secondary manner to the primary concern of staying upright. There's a lot
of housing in the US built to early 20th century European norms which
everybody knows will come straight down when the big one hits.

On Sat, 18 Jun 2005 08:27:41 +0000 (UTC), "Lawrence Zarb"
wrote:

does anyone know of a good on-line site giving details of how to
construct cavity walls

I guess you are asking how to build a brick wall, a cavity wall, is
just 2 walls, with a gap between. and some ties joining them together.
The two walls do not need to be of the same material, mine, for
example are stone & block.

The ties give extra strength for "wind loading", the BCO made me cut
all the ties out where the wall was not gonna get any wind (cause it
was below ground).

Rick