Just had a bloke round about cavity wall insualtion and I've been told
that I can't have it. It's a stone built property with an inner leaf of
brickwork. Apparently because the inner side of the stone is jagged it
can cause damp problems. I'm thinking that I'd like to insulate from
the inside now so may get in touch with the plasterer who is due round
next week.

Can anyone please tell me...

What are my options? For ease would rather use dot and dab
plasterboard. How much is it? Is it worth it? How does it compare to
cavity wall insulation?

Cheers,
Matt

RatRibs73 wrote:
Just had a bloke round about cavity wall insualtion and I've been told
that I can't have it. It's a stone built property with an inner leaf of
brickwork. Apparently because the inner side of the stone is jagged it
can cause damp problems. I'm thinking that I'd like to insulate from
the inside now so may get in touch with the plasterer who is due round
next week.

Can anyone please tell me...

What are my options? For ease would rather use dot and dab
plasterboard. How much is it? Is it worth it? How does it compare to
cavity wall insulation?

Cheers,
Matt

I know what I would do, and thats frame the inside with 2x2, packed out
using a ply membrane to keep the damp out, and using spacers of scrap to
get it true, infill with Celotex, tape up firmly with Al. tape, and
slap 12mm foil backed plasterboard on the inside, skim and paint.
After laying in new cables of course..and pipes where appropriate.

I guess you could slap up insulation backed board with gobs of no nails
or whatever..but its a bit of a hack..

Cheers,

Whats ply membrane, celotex and AI tape. Time may be a problem with
this solution. Plasterer is coming round Thursday.

Is the cost of doing this worth it?

On 2 Mar 2006 04:24:15 -0800, "RatRibs73" wrote:

Cheers,

Whats ply membrane, celotex and AI tape. Time may be a problem with
this solution. Plasterer is coming round Thursday.

Is the cost of doing this worth it?

With energy costs up 70% in the last year, I say yes.
50mm Celotex will give terrific insulation. Maybe explain the
situation to the plasterer, he may well have come accross this problem
before.

RatRibs73 wrote:
Cheers,

Whats ply membrane, celotex and AI tape. Time may be a problem with
this solution. Plasterer is coming round Thursday.


Celotex is a stiff polyisocyanurate foam board with foil on both sides.
Its rigid, its easily cut and it has twice the insulation properties of
anything else. You wedge it between timber studwork, and use aluminium
tape over it all to create a water and draught proof seal.

Ply membrane is a typo. damp proof membrane - usually polythene.


Is the cost of doing this worth it?


Absolutely. Turns chilly rooms into cosy rooms.

The Natural Philosopher wrote:

Absolutely. Turns chilly rooms into cosy rooms.

would it also not turn the inside of a house into an oven in the summer?

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""Pet @ www.gymratz.co.uk ;¬)"" wrote in message
news
The Natural Philosopher wrote:

Absolutely. Turns chilly rooms into cosy rooms.

would it also not turn the inside of a house into an oven in the summer?

Nope. It also keeps the heat out too. Heats and cools.

In article
"Pet @ www.gymratz.co.uk ;¬)" wrote:
The Natural Philosopher wrote:

Absolutely. Turns chilly rooms into cosy rooms.

would it also not turn the inside of a house into an oven in the summer?

Where do you think most of the heat comes from in the summer?

Pet @ www.gymratz.co.uk ;¬) wrote:
The Natural Philosopher wrote:

Absolutely. Turns chilly rooms into cosy rooms.

would it also not turn the inside of a house into an oven in the summer?


No. Does the inside of your insulated fridge turn into a roasting oven
in summer?

It will actually tend to cool the interior in summer. As the exterior
brickwork can get very warm indeed.

Only in the sense that you will lose thermal mass, may there be a
problem - i.e. overnight the brickwork will cool, and that may be
transmitted to the interior during part of the early day in an
uninsulated house.

The solution is to have mass - a concrete floor, or brick chimney -
inside the house...where it can act to stabilise temperature

"RatRibs73" wrote in message
oups.com...
Just had a bloke round about cavity wall insualtion and I've been told
that I can't have it. It's a stone built property with an inner leaf of
brickwork. Apparently because the inner side of the stone is jagged it
can cause damp problems. I'm thinking that I'd like to insulate from
the inside now so may get in touch with the plasterer who is due round
next week.

The inside jagged? That is new one on me. The only way you can get damp is
if the outer wall is porous in some way.