"Rick Dipper" wrote in message
...
On Thu, 05 Aug 2004 10:35:22 +0100, The Natural Philosopher
wrote:

Rick Dipper wrote:

On Wed, 04 Aug 2004 20:08:18 +0100, The Natural Philosopher
wrote:


Rick Dipper wrote:


I am working out the next stage of my build, hence all the questions.

I want to use ceotex insulation in the partial fill cavity. from what
I can find you are supposed to build the inner wall, then use the wall
ties and special clips to hld the insulation on the inner wall, as you
build the outer.

I have allrady got the outer wall, its stone, I can't take it down, so
I am building the inner. I am not using normal ties, I have to drill
into the existing wall, and screw ties into the holes.

How do I hole the celotex sheets against the inner wall as a build it
? I was thinking os some sort of T shape thing I pull through the
boards and cement in.

Selfbuild to me is me actually doing the work, not simply paying some
other guy to do it while I watch.

Thanks
Rick



You don't.

You put your studs up - making sure there is a DPM between them and the
stonework if it gets damp - and then cut sheets of celotex to fit
between them, and use the aluminium foil tape to tape to the studs to
make a the whole draughtproof . Leave any gap on the OUTSIDE of the
celotex - this is where a little air ciurculation can help to prevent
damp build up.

Then nail internal cladding over studs.

Mak sure you have pipes and wires well in place before all this tho.



Good idea but my wall inner is made from block, and it will hold the
roof up, the outer stone wall is more "decorative". This is the
compramise between the planning man who won't let the outer wall come
down, and the building regs who declared it not suitable for holding
things up. The roof sits on the inner wall will overhang by a couple
of foot to go over the outer stone wall.

This is one situation where a "big storm" would be most welcome. I
under mined the stone wall by two foot, not a single mm of movement -
drat !!

Rick

Why not use rockwool then, stuffed in between? Unless its a very narrow
gap, and you can't get the insulation any other way...

I mus say I'de probably build the wall, stuff celotex behind it from
above and sling a tube of expanding foam behind it as you build.

Last bit of wall, simply prop board up,build wall then drill through
block and celotex and inject foam behind it all.

That should keep it in its place!



The old stone wall is far from straight, the "air gap" will vary from
25mm to 150mm (or more)

I wanted to use sheeps wool, its cheep,

No it's ba.