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Old 05-04-2003, 06:36 AM
Andrew Tune
 
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Default Roof for conservatory

Folks:

Hoping someone can advise (preferably from experience) on the problem of
too much heat in a conservatory.

Living in Melbourne, Australia. For US readers, hot summers (has been 110F
in the last few days) and mild winters (rarely below freezing) - latitude
of 38 degrees. Hoping to build a conservatory as an addition to the
house (i.e. not free-standing). Purpose: predominantly an outdoor room,
plant-growing is secondary. Size: 4.5m x 7m x (roughly) 4m high (i.e.
14' x 23' x 13' roughly). Orientation: E-W, with solid walls on the north
and south sides, full glass walls on the east and west.

Question: if we go for a full glass roof, won't it become unbearably hot
even on sunny winter days? If, as an alternative, we go for a normal roof
and a glass lantern (see diagram of cross-section below) will that be a
more sensible compromise? Cross section follows: due to the limitations
of ASCII art (or perhaps my limitations as an ASCII artist!) you should
imagine this with a completely different aspect ratio: stretch it 3 times
horizontally to get a more reasonable idea. Or alternatively, see
http://images.homeportfolio.com/1033/9373/90.jpg

Cross section: /\
/ \
| |--- Lantern roof
| |
/ \
/ \

Any help very much appreciated.

adt.
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ACN 101 925 642 People-proof data security. Fax: +61 3 9836 0681
http://www.splitlock.com


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Old 05-04-2003, 06:36 AM
the original greggie gibson
 
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Default Roof for conservatory

try alt.energy.renewable

Andrew Tune wrote:

Folks:

Hoping someone can advise (preferably from experience) on the problem of
too much heat in a conservatory.

Living in Melbourne, Australia. For US readers, hot summers (has been
110F
in the last few days) and mild winters (rarely below freezing) - latitude
of 38 degrees. Hoping to build a conservatory as an addition to the
house (i.e. not free-standing). Purpose: predominantly an outdoor room,
plant-growing is secondary. Size: 4.5m x 7m x (roughly) 4m high (i.e.
14' x 23' x 13' roughly). Orientation: E-W, with solid walls on the north
and south sides, full glass walls on the east and west.

Question: if we go for a full glass roof, won't it become unbearably hot
even on sunny winter days? If, as an alternative, we go for a normal roof
and a glass lantern (see diagram of cross-section below) will that be a
more sensible compromise? Cross section follows: due to the limitations
of ASCII art (or perhaps my limitations as an ASCII artist!) you should
imagine this with a completely different aspect ratio: stretch it 3 times
horizontally to get a more reasonable idea. Or alternatively, see
http://images.homeportfolio.com/1033/9373/90.jpg

Cross section: /\
/ \
| |--- Lantern roof
| |
/ \
/ \

Any help very much appreciated.

adt.


alt.energy.renewable

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Old 05-04-2003, 06:36 AM
Terry Collins
 
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Default Roof for conservatory

Andrew Tune wrote:

Living in Melbourne, Australia. For US readers, hot summers (has been 110F
in the last few days) and mild winters (rarely below freezing) - latitude
of 38 degrees. Hoping to build a conservatory as an addition to the
house (i.e. not free-standing). Purpose: predominantly an outdoor room,
plant-growing is secondary. Size: 4.5m x 7m x (roughly) 4m high (i.e.
14' x 23' x 13' roughly). Orientation: E-W, with solid walls on the north
and south sides, full glass walls on the east and west.

Question: if we go for a full glass roof, won't it become unbearably hot
even on sunny winter days?


In summer yes, in winter now.

We re-roofed our flat roofed house with a roof with a slight pitch and
end up with a conservatory/sun-room. The roofing is just the corrugated
clear plastic. Warning, this burns the wood bearers. I think I could
run copper pipe under the hills and get free hot water.

Aspect is east, but it gets sun all the time in Summer and in incredibly
hot. Great in winter.

Our first step is to put a shade sail over it to make it useful in
summer. It still gets far too hot on hot days, i.e. it can heat up a
great amount of air. We are considering extraction fans for these days.
So your lantern roof might be good, but I still think you are going to
find the place gets hot - where does the air come from to replace the
air you vent (outside = hot air).

I haven't really found a useful product to replace the corrigated
plastic with as we want no tinting/colour changes as it is used for
various art purposes.

We have not yet included indoor plants.



--
Terry Collins {:-)}}} email: terryc at woa.com.au www:
http://www.woa.com.au
Wombat Outdoor Adventures Bicycles, Computers, GIS, Printing,
Publishing

"People without trees are like fish without clean water"
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Old 05-04-2003, 06:36 AM
v
 
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Default Roof for conservatory

On Sun, 26 Jan 2003 22:35:45 GMT, someone wrote:

Folks:

Hoping someone can advise (preferably from experience) on the problem of
too much heat in a conservatory.

Ventilation???

-v.


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