I want to build a small bungalow, and the overall floor area is very limited so I'm wondering if there is a 4" thick walling material that meets the building regs' thermal insulation requirements. It only needs to be load-bearing enough to bear a tiled, pitched roof with a loft room inside. If I can make the walls 4" thick rather than the standard 11" cavity walls, I'll gain 14" of floor space in each direction. Does anyone know of any such walling material?

Thank you..

JD

On 20/05/16 20:03, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Thank you..

JD


Nope.


In a word.

If you think about it, the only way you are going to get a 4" wall is
brick, concrete block or reinforced concrete.

Then you'll need celotex...

On 20/05/2016 20:03, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Timber with insulation would be the way to go, with hung tiles or PVC
cladding. Not pretty but get the u-factor you need.

As Tim intimated, forget brick or concrete.

wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Thank you..

JD

Forget it, you'll never meet thermal requirements.
The insulation needs to be 4" alone, and that's with thermal blocks inside,
which is 8".
By the time you've covered the insulation outside, you're back up to 12"
even if you use timber and some sort of cladding.

BTW 11" hasn't been 'standard' for years, they are 12" and that's before
drylining and plastering

Fredxxx wrote:
On 20/05/2016 20:03, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Timber with insulation would be the way to go, with hung tiles or PVC
cladding. Not pretty but get the u-factor you need.


You only get insulation between the timbers, this isn't allowed - it needs
to be complete, the cold will bridge the 4" timber


As Tim intimated, forget brick or concrete.

And the bungalow

On Fri, 20 May 2016 20:12:59 +0100, Tim Watts
wrote:

On 20/05/16 20:03, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Thank you..

JD


Nope.


In a word.

If you think about it, the only way you are going to get a 4" wall is
brick, concrete block or reinforced concrete.

Then you'll need celotex...

I've seen steel framed buildings clad in what looks like metal bonded
to celotex. No idea if it's approved for domestic use and it would
look like you were living in a shed.

Yes carbon carbon laminaate and a lot of second hand space shuttle times?
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Tim Watts" wrote in message
...
On 20/05/16 20:03, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Thank you..

JD


Nope.


In a word.

If you think about it, the only way you are going to get a 4" wall is
brick, concrete block or reinforced concrete.

Then you'll need celotex...

In message ,
writes
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only needs
to be load-bearing enough to bear a tiled, pitched roof with a loft
room inside. If I can make the walls 4" thick rather than the standard
11" cavity walls, I'll gain 14" of floor space in each direction. Does
anyone know of any such walling material?

Have a look at SIPs. Kingspan site perhaps.

--
Tim Lamb

On Friday, 20 May 2016 20:03:55 UTC+1, wrote:
I want to build a small bungalow, and the overall floor area is very limited so I'm wondering if there is a 4" thick walling material that meets the building regs' thermal insulation requirements. It only needs to be load-bearing enough to bear a tiled, pitched roof with a loft room inside. If I can make the walls 4" thick rather than the standard 11" cavity walls, I'll gain 14" of floor space in each direction. Does anyone know of any such walling material?

Thank you..

JD

Vacuum panels? Aerogel? Pricey either way.


NT

On Friday, 20 May 2016 20:03:55 UTC+1, wrote:
I want to build a small bungalow, and the overall floor area is very limited so I'm wondering if there is a 4" thick walling material that meets the building regs' thermal insulation requirements. It only needs to be load-bearing enough to bear a tiled, pitched roof with a loft room inside. If I can make the walls 4" thick rather than the standard 11" cavity walls, I'll gain 14" of floor space in each direction. Does anyone know of any such walling material?

Thank you..

JD

No. Not possible with conventional materials.
And nobody is using 11" cavity walls these days either.
Usually they are thicker than that.

On 5/20/2016 10:33 PM, wrote:
On Friday, 20 May 2016 20:03:55 UTC+1, wrote:
I want to build a small bungalow, and the overall floor area is very limited so I'm wondering if there is a 4" thick walling material that meets the building regs' thermal insulation requirements. It only needs to be load-bearing enough to bear a tiled, pitched roof with a loft room inside. If I can make the walls 4" thick rather than the standard 11" cavity walls, I'll gain 14" of floor space in each direction. Does anyone know of any such walling material?

Thank you..

JD

Vacuum panels? Aerogel? Pricey either way.


NT

Beat me to it!

On 20/05/2016 20:03, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Thank you..

JD


Are you sure its not a conservatory made with triple glazing and vacuum
thermal panels?

On Friday, 20 May 2016 20:03:55 UTC+1, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material
that meets the building regs' thermal insulation requirements.

In theory you can make the walls any thinness you can get away with structurally provided you compensate with thermal insulation and other measures in other areas.

If you want more space in a limited plan area, and can't go to full 2 storeys, can you put in a basement?

Owain

harry wrote
wrote

I want to build a small bungalow, and the overall floor area
is very limited so I'm wondering if there is a 4" thick walling
material that meets the building regs' thermal insulation
requirements. It only needs to be load-bearing enough to
bear a tiled, pitched roof with a loft room inside. If I can
make the walls 4" thick rather than the standard 11" cavity
walls, I'll gain 14" of floor space in each direction. Does
anyone know of any such walling material?

No. Not possible with conventional materials.

Depends on what you call conventional materials.

It is indeed possible with the best insulation available
clad with metal or even recycled plastic. That's how
cool rooms are done so it is readily buyable. Not that
cheap tho and does look rather industrial.

And even say 6" walls use a lot less space than cavity walls.

And nobody is using 11" cavity walls these days either.
Usually they are thicker than that.

On Saturday, 21 May 2016 19:36:55 UTC+1, Rod Speed wrote:
harry wrote
wrote

I'm wondering if there is a 4" thick walling
material that meets the building regs' thermal insulation
requirements. It only needs to be load-bearing enough to
bear a tiled, pitched roof with a loft room inside. If I can
make the walls 4" thick rather than the standard 11" cavity

No. Not possible with conventional materials.

Depends on what you call conventional materials.

It is indeed possible with the best insulation available
clad with metal or even recycled plastic. That's how
cool rooms are done so it is readily buyable. Not that
cheap tho and does look rather industrial.

Do tell us what this insulation is called.


NT

wrote in message
...
On Saturday, 21 May 2016 19:36:55 UTC+1, Rod Speed wrote:
harry wrote
wrote

I'm wondering if there is a 4" thick walling
material that meets the building regs' thermal insulation
requirements. It only needs to be load-bearing enough to
bear a tiled, pitched roof with a loft room inside. If I can
make the walls 4" thick rather than the standard 11" cavity

No. Not possible with conventional materials.

Depends on what you call conventional materials.

It is indeed possible with the best insulation available
clad with metal or even recycled plastic. That's how
cool rooms are done so it is readily buyable. Not that
cheap tho and does look rather industrial.

Do tell us what this insulation is called.

Even someone as stupid as you should be
able to use google and see for yourself.

On 21/05/2016 22:22, wrote:
Do tell us what this insulation is called.


NT

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

Price is bound to be prohibitive.

--
Rod (not that one)

On Sunday, 22 May 2016 12:37:39 UTC+1, polygonum wrote:
On 21/05/2016 22:22, tabbypurr wrote:

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

Price is bound to be prohibitive.

I vaguely wonder if they could be diyed.


NT

On Sunday, 22 May 2016 02:15:24 UTC+1, Rod Speed wrote:
tabbypurr wrote in message
...
On Saturday, 21 May 2016 19:36:55 UTC+1, Rod Speed wrote:
harry wrote
wrote

I'm wondering if there is a 4" thick walling
material that meets the building regs' thermal insulation
requirements. It only needs to be load-bearing enough to
bear a tiled, pitched roof with a loft room inside. If I can
make the walls 4" thick rather than the standard 11" cavity

No. Not possible with conventional materials.

Depends on what you call conventional materials.

It is indeed possible with the best insulation available
clad with metal or even recycled plastic. That's how
cool rooms are done so it is readily buyable. Not that
cheap tho and does look rather industrial.

Do tell us what this insulation is called.

Even someone as stupid as you should be
able to use google and see for yourself.

how did I guess you weren't going to tell us. Contribute something or **** off.


NT

On 22/05/16 13:20, wrote:
On Sunday, 22 May 2016 02:15:24 UTC+1, Rod Speed wrote:


how did I guess you weren't going to tell us. Contribute something or **** off.



I think that around 4-6" of polyisocyanurate foam will actually do the
insulation job required, but them you have the issue of a structure to
hold it.

Softwood timber framed, clad in the plastic weatherboard say 6" thick,.
with plasterboard inside is probably as cheap and as good as it gets.

Basically the constructionist is from outside to in, weatherboard, semi
permeable membrane, celotex with foil on both sides, plasterboard (or in
places where you want to hang stuff off the walls, ply or mdf, skimmed
or painted).

In fact if you are building for yourself, its no bad idea to whack up
MDF or ply inside, rout slots in it for wiring and plumbing, and then
cover with plasterboard.



NT



--
All political activity makes complete sense once the proposition that
all government is basically a self-legalising protection racket, is
fully understood.

On 22/05/2016 14:19, The Natural Philosopher wrote:
Basically the constructionist is from outside to in, weatherboard, semi
permeable membrane, celotex with foil on both sides, plasterboard (or in
places where you want to hang stuff off the walls, ply or mdf, skimmed
or painted).

Maybe, if there is really nothing else behind it, a super-plasterboard
like Gyproc Habito?

http://www.british-gypsum.com/produc.../gyproc-habito

Anyone used it? Anyone paid for it?

--
Rod

polygonum wrote
wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

Price is bound to be prohibitive.

While it would be higher than a cavity wall with
triple glazing it clearly isn't prohibitive given those
modern sky scrapers which are effectively just glass
walls on the outside and often on the inside too.

On Sunday, 22 May 2016 19:29:16 UTC+1, Rod Speed wrote:
polygonum wrote
tabbypurr wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

woefully inadequate. what a surprise.


NT

wrote in message
...
On Sunday, 22 May 2016 02:15:24 UTC+1, Rod Speed wrote:
tabbypurr wrote in message
...
On Saturday, 21 May 2016 19:36:55 UTC+1, Rod Speed wrote:
harry wrote
wrote

I'm wondering if there is a 4" thick walling
material that meets the building regs' thermal insulation
requirements. It only needs to be load-bearing enough to
bear a tiled, pitched roof with a loft room inside. If I can
make the walls 4" thick rather than the standard 11" cavity

No. Not possible with conventional materials.

Depends on what you call conventional materials.

It is indeed possible with the best insulation available
clad with metal or even recycled plastic. That's how
cool rooms are done so it is readily buyable. Not that
cheap tho and does look rather industrial.

Do tell us what this insulation is called.

Even someone as stupid as you should be
able to use google and see for yourself.

how did I guess you weren't going to tell us.

Because even someone as stupid as you should
be able to use google and see for yourself.

Contribute something or **** off.

Go and **** yourself, again.

On 22/05/2016 19:55, wrote:
On Sunday, 22 May 2016 19:29:16 UTC+1, Rod Speed wrote:
polygonum wrote
tabbypurr wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

woefully inadequate. what a surprise.


NT

Quite.

--
Rod

The Natural Philosopher wrote
wrote
Rod Speed wrote

how did I guess you weren't going to tell us. Contribute something or
**** off.

I think that around 4-6" of polyisocyanurate foam will actually do the
insulation job required, but them you have the issue of a structure to
hold it.

Been solved long ago with cool rooms.

Softwood timber framed,

Galvanised steel framed makes a lot more sense.

clad in the plastic weatherboard say 6" thick,. with plasterboard inside
is probably as cheap and as good as it gets.

Basically the constructionist is from outside to in, weatherboard, semi
permeable membrane, celotex with foil on both sides, plasterboard (or in
places where you want to hang stuff off the walls, ply or mdf, skimmed or
painted).

In fact if you are building for yourself, its no bad idea to whack up MDF
or ply inside, rout slots in it for wiring and plumbing, and then cover
with plasterboard.

wrote in message
...
On Sunday, 22 May 2016 19:29:16 UTC+1, Rod Speed wrote:
polygonum wrote
tabbypurr wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

woefully inadequate.

You never could bull**** your way out of a wet paper bag.

On Sunday, 22 May 2016 20:34:17 UTC+1, Rod Speed wrote:
The Natural Philosopher wrote
tabbypurr wrote
Rod Speed wrote

how did I guess you weren't going to tell us. Contribute something or
**** off.

I think that around 4-6" of polyisocyanurate foam will actually do the
insulation job required, but them you have the issue of a structure to
hold it.

Been solved long ago with cool rooms.

Mild steel lining filled with foam provides nowhere near the strength or durability needed for a house. Don't try again, you're a clueless twit.


NT

On Sunday, 22 May 2016 21:46:54 UTC+1, Rod Speed wrote:
tabbypurr wrote in message
...
On Sunday, 22 May 2016 19:29:16 UTC+1, Rod Speed wrote:
polygonum wrote
tabbypurr wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

woefully inadequate.

You never could bull**** your way out of a wet paper bag.

I don't need to.
But I do wish you'd bull**** your way into a paper bag & stay there.

wrote in message
...
On Sunday, 22 May 2016 20:34:17 UTC+1, Rod Speed wrote:
The Natural Philosopher wrote
tabbypurr wrote
Rod Speed wrote

how did I guess you weren't going to tell us. Contribute something or
**** off.

I think that around 4-6" of polyisocyanurate foam will actually do the
insulation job required, but them you have the issue of a structure to
hold it.

Been solved long ago with cool rooms.

Mild steel lining filled with foam provides nowhere
near the strength or durability needed for a house.

BULL**** with galvanised steel.

wrote in message
...
On Sunday, 22 May 2016 21:46:54 UTC+1, Rod Speed wrote:
tabbypurr wrote in message
...
On Sunday, 22 May 2016 19:29:16 UTC+1, Rod Speed wrote:
polygonum wrote
tabbypurr wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

woefully inadequate.

You never could bull**** your way out of a wet paper bag.

I don't need to.

Then why is that all you ever do ?

In article ,
wrote:
On Sunday, 22 May 2016 19:29:16 UTC+1, Rod Speed wrote:
polygonum wrote
tabbypurr wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

woefully inadequate. what a surprise.


This thread made me wonder how buildings like the Shard meet building regs
regarding insulation. Googling lead to:

http://www.bdonline.co.uk/cladding-r...000744.article

"Thermal insulation is provided by hermetically sealed double-glazed units
making up the inner skin of the facade."

So I assume, even on a large scale, double glazing is sufficient.

However this causes the greenhouse effect to give problems with
overheating particularly after "the increased energy efficiency brought in
by the 2006 revision of Part L of the building regulations"
so: "the team switched to a passive facade in which the roller blinds are
protected from wind and rain by single glazing".

Alan

--


Using an ARMX6

On Monday, 23 May 2016 10:56:14 UTC+1, Alan Dawes wrote:
In article ,
tabbypurr wrote:
On Sunday, 22 May 2016 19:29:16 UTC+1, Rod Speed wrote:
polygonum wrote
tabbypurr wrote

Do tell us what this insulation is called.

I'd have thought the only real candidate is Vacuum Insulated Panel.

https://en.wikipedia.org/wiki/Vacuum_insulated_panel

That's not right. Triple glazing would obviously work, with
something thin on the outside so you can't see thru it with
most of it.

woefully inadequate. what a surprise.


This thread made me wonder how buildings like the Shard meet building regs
regarding insulation. Googling lead to:

http://www.bdonline.co.uk/cladding-r...000744.article

"Thermal insulation is provided by hermetically sealed double-glazed units
making up the inner skin of the facade."

So I assume, even on a large scale, double glazing is sufficient.

However this causes the greenhouse effect to give problems with
overheating particularly after "the increased energy efficiency brought in
by the 2006 revision of Part L of the building regulations"
so: "the team switched to a passive facade in which the roller blinds are
protected from wind and rain by single glazing".

Alan

Since it refers to the dg as the inner skin, that seems to imply that's not all the insulation the building has.

Very large buildings are a different animal. They have much less external wall per floor space, so can have higher wall conductivity to achieve a given heat loss per flat or office. Since the proportions are different they also are prone to suffer excess solar gain, which is a reason to not overinsulate.

Triple glazing: R=0.52. This can be improved a bit for a limited time with argon fill.
PIR foam: 1.1-1.3 per inch, so 4.4-5.2 per 4", 6.6-7.8 per 6"
So Rod Twit's suggestion is out by at least a factor of 10.


NT

On 23/05/16 11:44, wrote:
Very large buildings are a different animal. They have much less external wall per floor space,

For a constant height room, lest say 'square' (of length n) rather than
very long and thin, wall area is n, whilst area is n^2. But that's for
multistorey, as it neglects the roof and floor area.

For a few storeys, it doesn't work that way. For a single storey
building, external area to floor area is pretty much constant.

But that of course doesn't invliadate your point , that the *walls*
don't dominate, the ceiling and floor do, in that case.




--
How fortunate for governments that the people they administer don't think.

Adolf Hitler

In message ,
newshound writes
On 5/20/2016 10:33 PM, wrote:
On Friday, 20 May 2016 20:03:55 UTC+1, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Thank you..

JD

Vacuum panels? Aerogel? Pricey either way.


NT

Beat me to it!

I'll try again!

www.kingspantek.co.uk/

--
Tim Lamb

On Monday, 23 May 2016 12:28:58 UTC+1, The Natural Philosopher wrote:
On 23/05/16 11:44, tabbypurr wrote:

Very large buildings are a different animal. They have much less external wall per floor space,

For a constant height room, lest say 'square' (of length n) rather than
very long and thin, wall area is n, whilst area is n^2. But that's for
multistorey, as it neglects the roof and floor area.

For a few storeys, it doesn't work that way. For a single storey
building, external area to floor area is pretty much constant.

Ground floor & upper ceiling areas are both proportional to floor area divided by number of storeys. Wall area to floor area is proportional to (floor area divided by number of storeys) squared.

But that of course doesn't invliadate your point , that the *walls*
don't dominate, the ceiling and floor do, in that case.

Most skyscrapers can be modelled as a huge cube. It's clear the ratio is very different to any semi or bungalow.
If a house of 1 length long, 1 width wide & 1 storey high has an external area of 1 unit and a volume of 1 unit, then a block 10x the size in each dimension has 1000x the volume and 100x the external area, thus just 1/10th the external area per floor space.


NT

On Monday, May 23, 2016 at 1:06:57 PM UTC+1, Tim Lamb wrote:
In message ,
newshound writes
On 5/20/2016 10:33 PM, wrote:
On Friday, 20 May 2016 20:03:55 UTC+1, wrote:
I want to build a small bungalow, and the overall floor area is very
limited so I'm wondering if there is a 4" thick walling material that
meets the building regs' thermal insulation requirements. It only
needs to be load-bearing enough to bear a tiled, pitched roof with a
loft room inside. If I can make the walls 4" thick rather than the
standard 11" cavity walls, I'll gain 14" of floor space in each
direction. Does anyone know of any such walling material?

Thank you..

JD

Vacuum panels? Aerogel? Pricey either way.


NT

Beat me to it!

I'll try again!

www.kingspantek.co.uk/

--
Tim Lamb

The rub is in the cost, having roughed out building a workshop, structurally rated SIPs are about same cost as building in brick or block.

Non rated SIPs come in at lower cost but are only useable for single level buildings , like garden rooms.

http://www.sips.org/about/what-are-sips

Glass curtain wall on steel frame dosent seem to be worst idea as long as lose the solar gain or make it self ventilate.

In message , Adam
Aglionby writes
The rub is in the cost, having roughed out building a workshop,
structurally rated SIPs are about same cost as building in brick or
block.

Non rated SIPs come in at lower cost but are only useable for single
level buildings , like garden rooms.

http://www.sips.org/about/what-are-sips

Glass curtain wall on steel frame dosent seem to be worst idea as long
as lose the solar gain or make it self ventilate.

Yes.

I was responding to the floorspace/footprint requirement.

I looked at SIPs when it became apparent that our greenbelt extension
would be restricted to 40%.

Thin walls would have given more floor for the same cost. It began to
look as though dormers would be an issue so I dropped the idea.


--
Tim Lamb

On 24/05/2016 02:31, Adam Aglionby wrote:


Glass curtain wall on steel frame dosent seem to be worst idea as
long as lose the solar gain or make it self ventilate.


Like I said at the start of the thread it sounds like a conservatory
with glazed and insulated panels.

The total thickness of the frame is about 100mm in plastic and about
75mm in alloy.

You won't get much cheaper either.

If its not a habitable room the requirements for insulation are
considerably less (like zero).