My extension application has been delayed (don't ask !) and I may have
to revise for 2006 regs. The new regs are mainly for energy I believe.
So ...
What are the new values for windows (now U-value 2.0) and roofs (now
U-value 0.2).
Cheers,
Simon.

On 11 Mar 2006 11:01:07 -0800 wrote :
My extension application has been delayed (don't ask !) and I may have
to revise for 2006 regs. The new regs are mainly for energy I believe.
So ...
What are the new values for windows (now U-value 2.0) and roofs (now
U-value 0.2).

You may well ask. The new regs come in on April 6 but have yet to be
published. There is a draft version on the ODPM website but the
Architects' Journal of two weeks ago said that the final version
(allegedly to be laid before Parliament this week) will contain
significant differences and no one from ODPM has (AFAIK) has contested
this story.

Basically the new regs are much less prescriptive - I'm fully immersed
in the new build side at the moment and none of the U-value limits are
any tighter than in the 2002 AD. However you have to achieve a 20%
reduction in CO2 over a similar building built to 2002 standards. How
you get that 20% is up to you: more insulation, more efficient boiler,
better windows, solar panel, PV panel etc are all options you can use.

For extensions the most likely rule looks to be that the CO2 from house
+ extension is no worse than house + similar extension built to a
particular standard. Thus a high energy extension (e.g. a non-exempt
conservatory) will be allowed if you make compensating improvements
elsewhere in the house. This formalises an approach already adopted by
many LA's for such extensions.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk
Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm
[Latest version QSEDBUK 1.12 released 8 Dec 2005]

In article ,
Tony Bryer writes:
Basically the new regs are much less prescriptive - I'm fully immersed
in the new build side at the moment and none of the U-value limits are
any tighter than in the 2002 AD. However you have to achieve a 20%
reduction in CO2 over a similar building built to 2002 standards. How

On the "Today" program on Radio 4 a couple of weeks ago, someone
from the ODMP was being interviewed about this. My vague recollectin
is they were being challenged on why that 20% reduction is being
scrapped and why the intention to include all conservatories in
building regs has been scrapped.

The interviewer was charging that the ODPM had simply bowed over
to the building industry pressure, but the person from the ODPM
was very unconvincingly denying this without giving any other
reason that I can recall now. Apparently, building trade has said
the changes will add substantially to cost of new housing, killing
Prescot's £60k starter homes, and whatever body represents
conservatory builders has said it will kill that industry as most
conservatories will be priced out of reach of their customers.

--
Andrew Gabriel

"Andrew Gabriel" wrote in message
...
In article ,
Tony Bryer writes:
Basically the new regs are much less prescriptive - I'm fully immersed
in the new build side at the moment and none of the U-value limits are
any tighter than in the 2002 AD. However you have to achieve a 20%
reduction in CO2 over a similar building built to 2002 standards. How

On the "Today" program on Radio 4 a couple of weeks ago, someone
from the ODMP was being interviewed about this. My vague recollectin
is they were being challenged on why that 20% reduction is being
scrapped and why the intention to include all conservatories in
building regs has been scrapped.

The interviewer was charging that the ODPM had simply bowed over
to the building industry pressure, but the person from the ODPM
was very unconvincingly denying this without giving any other
reason that I can recall now. Apparently, building trade has said
the changes will add substantially to cost of new housing, killing
Prescot's £60k starter homes, and whatever body represents
conservatory builders has said it will kill that industry as most
conservatories will be priced out of reach of their customers.

All they have to do is change the planning laws and release land for
building. Then prices will come down and land will not figure so much in the
overall house price. Then more can be spent on the building fabric.

Quite simple really. See:
http://www.policyexchange.org.uk/

http://www.policyexchange.org.uk/upl..._June_2005.pdf

"Doctor Drivel" wrote in message
reenews.net...

"Andrew Gabriel" wrote in message
...
In article ,
Tony Bryer writes:
Basically the new regs are much less prescriptive - I'm fully immersed
in the new build side at the moment and none of the U-value limits are
any tighter than in the 2002 AD. However you have to achieve a 20%
reduction in CO2 over a similar building built to 2002 standards. How

On the "Today" program on Radio 4 a couple of weeks ago, someone
from the ODMP was being interviewed about this. My vague recollectin
is they were being challenged on why that 20% reduction is being
scrapped and why the intention to include all conservatories in
building regs has been scrapped.

The interviewer was charging that the ODPM had simply bowed over
to the building industry pressure, but the person from the ODPM
was very unconvincingly denying this without giving any other
reason that I can recall now. Apparently, building trade has said
the changes will add substantially to cost of new housing, killing
Prescot's £60k starter homes, and whatever body represents
conservatory builders has said it will kill that industry as most
conservatories will be priced out of reach of their customers.

All they have to do is change the planning laws and release land for
building. Then prices will come down and land will not figure so much in
the overall house price. Then more can be spent on the building fabric.

Quite simple really. See:
http://www.policyexchange.org.uk/

http://www.policyexchange.org.uk/upl..._June_2005.pdf


Link not broken:
http://www.policyexchange.org.uk/uploads/media/Unaffordable_Housing_-_final_text_-_10_June_2005.pdf

"Doctor Drivel" wrote in message
reenews.net...

This is just out. Interesting:
http://www.policyexchange.org.uk/uploads/media/BetterHomes_GreenerCities_2_.pdf

"Doctor Drivel" wrote in message
reenews.net...

"Doctor Drivel" wrote in message
reenews.net...

This is just out. Interesting:
http://www.policyexchange.org.uk/uploads/media/BetterHomes_GreenerCities_2_.pdf

Summary
http://www.policyexchange.org.uk/uploads/media/Summary-BetterHomesGreenerCities_2_.pdf

On 11 Mar 2006 21:28:47 GMT Andrew Gabriel wrote :
The interviewer was charging that the ODPM had simply bowed over
to the building industry pressure, but the person from the ODPM
was very unconvincingly denying this without giving any other
reason that I can recall now. Apparently, building trade has said
the changes will add substantially to cost of new housing, killing
Prescot's £60k starter homes, and whatever body represents
conservatory builders has said it will kill that industry as most
conservatories will be priced out of reach of their customers.

There are lots of special interest groups here. Most conservatories,
I would have thought are exempt and for the ones that aren't it is
arguable that this is one area where a real tightening down of
standards is justified. Meanwhile insulation manufacturers are
probably less than happy that mandatory U-values have not been
reduced.

For new build the requirement is to be 20% better than a notional
2002 equivalent building. Amongst other things the latter is assumed
to have a 78% efficient boiler and a cylinder with 35mm insulation,
so put in a condensing boiler and 50mm insulation cylinder and you've
done a good bit towards the 20%. Mandatory pressure testing is coming
in: the notional building is assumed to have a leakage of 10m3/m2/h
at 50Pa, whilst 8 should be deliverable on site with proper quality
control, another significant saving. So I wouldn't believe the
housebuilders either.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk
Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm
[Latest version QSEDBUK 1.12 released 8 Dec 2005]

Just put a building notice in now, and tel them you have started

dg