Local Council ad in the paper for energy efficiency, so I'm wondering
about cavity wall insulation, will it leave the outside of the house
peppered with dots !!, what size hole for injection and at what
intervals?
And are the savings worth it?
Cheers,

Staffbull wrote:
Local Council ad in the paper for energy efficiency, so I'm wondering
about cavity wall insulation, will it leave the outside of the house
peppered with dots !!, what size hole for injection and at what
intervals?

It depends on the contractor and what sort but the savings far outweigh the
aesthetic drawbacks.

And are the savings worth it?

Undoubtedly.

Peter Crosland

"Staffbull" wrote in message
ups.com...
Local Council ad in the paper for energy efficiency, so I'm wondering
about cavity wall insulation, will it leave the outside of the house
peppered with dots !!,

Not so you'd notice!


And are the savings worth it?

The comfort is, the savings probably are too.

Mary

"Staffbull" wrote in message
ups.com...
Local Council ad in the paper for energy efficiency, so I'm wondering
about cavity wall insulation, will it leave the outside of the house
peppered with dots !!, what size hole for injection and at what
intervals?
And are the savings worth it?
Cheers,
Just make sure you do not have a garage on the side of your house or it will
cost you about £600.
Ron

On Oct 25, 11:11 pm, "Ron" wrote:
"Staffbull" wrote in oglegroups.com... Local Council ad in the paper for energy efficiency, so I'm wondering
about cavity wall insulation, will it leave the outside of the house
peppered with dots !!, what size hole for injection and at what
intervals?
And are the savings worth it?
Cheers,Just make sure you do not have a garage on the side of your house or it will
cost you about £600.
Ron

We got quoted £494 yesterday for a 3 bed detached with single storey
extension. Last February a 3 bed without extension cost £160. Both
from the same company.

Inflation seems to have the roof in Dorset

"Staffbull" wrote in message
ups.com...
Local Council ad in the paper for energy efficiency, so I'm wondering
about cavity wall insulation, will it leave the outside of the house
peppered with dots !!, what size hole for injection and at what
intervals?
And are the savings worth it?
Cheers,

Usually 12mm diameter holes, roughly at one metre intervals vertically and
horizontally, usually through the mortar between bricks, unless rendered in
which case they just drill through. Typical heat loss is 30% through
uninsulated cavity walls, so your house will immediately feel warmer. Also,
in older houses with suspended wooden floors, under-floor draughts and
draughts through upstairs floors are often reduced.

On Thu, 26 Oct 2006 06:17:44 +0100 someone who may be "Codswallop"
wrote this:-

Usually 12mm diameter holes, roughly at one metre intervals vertically and
horizontally, usually through the mortar between bricks, unless rendered in
which case they just drill through. Typical heat loss is 30% through
uninsulated cavity walls, so your house will immediately feel warmer.

It will also be cooler in summer, as less heat will be conducted in
through the walls.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

David Hansen wrote:
On Thu, 26 Oct 2006 06:17:44 +0100 someone who may be "Codswallop"
wrote this:-

Usually 12mm diameter holes, roughly at one metre intervals vertically and
horizontally, usually through the mortar between bricks, unless rendered in
which case they just drill through. Typical heat loss is 30% through
uninsulated cavity walls, so your house will immediately feel warmer.

It will also be cooler in summer, as less heat will be conducted in
through the walls.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

Phoned them today, grant forms in the post, I can get £2000's worth
done for nowt as I'm unemployed at the mo, make hay while the sun
shines and all that !!!

On 26 Oct 2006 09:22:58 -0700 someone who may be "Staffbull"
wrote this:-

Phoned them today, grant forms in the post, I can get £2000's worth
done for nowt as I'm unemployed at the mo, make hay while the sun
shines and all that !!!

Get the loft done as well, if it isn't already. Cavity wall and loft
insulation will ISTR reduce heat losses by something like 60%. They
should also do draught proofing. Also insulate heating pipes, hot
water pipes and a badly lagged hot water cylinder.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

David Hansen wrote:
On 26 Oct 2006 09:22:58 -0700 someone who may be "Staffbull"
wrote this:-

Phoned them today, grant forms in the post, I can get £2000's worth
done for nowt as I'm unemployed at the mo, make hay while the sun
shines and all that !!!

Get the loft done as well, if it isn't already. Cavity wall and loft
insulation will ISTR reduce heat losses by something like 60%. They
should also do draught proofing. Also insulate heating pipes, hot
water pipes and a badly lagged hot water cylinder.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

the loft's done but only about 100mm so plenty of room for more :-)

i used to do this for a living (about 20 years ago) and we used to pride ourselves on trying to leave no trace of any drilling. it's probably almost impossible to completely disguise the holes but any decent company should be trying to be better at it than their competitor's.
we used to use various coloured powders/dyes to mix with the cement or in your case from what i can remember i would mix white paint with the cement and pick the stones up that were knocked out by the drilling and stick them in the wet cement.
hope this is of some help,
pitbull

pitbull wrote:
Staffbull Wrote:
Local Council ad in the paper for energy efficiency, so I'm wondering
about cavity wall insulation, will it leave the outside of the house
peppered with dots !!, what size hole for injection and at what
intervals?
And are the savings worth it?
Cheers,

i used to do this for a living (about 20 years ago) and we used to
pride ourselves on trying to leave no trace of any drilling. it's
probably almost impossible to completely disguise the holes but any
decent company should be trying to be better at it than their
competitor's.
we used to use various coloured powders/dyes to mix with the cement or
in your case from what i can remember i would mix white paint with the
cement and pick the stones up that were knocked out by the drilling and
stick them in the wet cement.
hope this is of some help,
pitbull




--
pitbull

I've decided to get it done, as the asthetics come second to keeping
the house warm cheaper, but thanks for the pointers on minimising the
visual impact :-)