Methods of cooling a room

[Baxter Basics]

do you know, that never even occurred to me ;¬}

[David Hearn]

A compliant what? ;)

D

[AndyC the WB]

IMM> It is easy to keep cool, but not keep warm. Most people like IMM> hot weather, that is why we all flock to the Med each year.

Well I avoid the Med like the plague but I do like to go somewhere hot to relax. But I wouldn't want to work in the Carribean any more than I'd want to lie outdoors and read a book in a British winter.

--

+-------------------------------------------------------------------------+ |Andy Cunningham aka AndyC the WB | andy -at- cunningham.me.uk | +-------------------------------------------------------------------------+ | - Everything you wanted to know | | about the P38A Range Rover but were afraid to ask. | +-------------------------------------------------------------------------+ "The world has gone crazy: The best rapper is a white guy, the best golfer is a black guy, France is accusing the US of arrogance, and Germany doesn't want to go to war." -- Anon

[Andy Hall]

Why not fill the entire loft space with insulation?

Actually come to think of it, fill the rooms as well. Then you can maximise the heat properties.

There won't be any room for the people of course, but that is a mere bagatelle in the quest for the insulation Holy Grail .andy

To email, substitute .nospam with .gl

[Andy Hall]

The clipboard wasn't large enough to support the cut and paste. It was only 2GB in size.,........

.andy

To email, substitute .nospam with .gl

[Andy Hall]

Did you ever see "One Flew over a Cuckoo's Nest"??

I'm wondering whether you model yourself on Jack Nicholson.....

.andy

To email, substitute .nospam with .gl

[John Rumm]

Good point! Carefull selection and placement is obviously vital! Perhaps you should drop seeds in the neighbours garden so that it't not your insurance that cops it when the house falls over! ;-)

[John Rumm]

I think the point I was making is that the amount of re-radiation you get from a (relatively) cool tile is very very low compared to that from direct sunlight. Most of the heat transfer to the air in the loft will be via convection and some by conduction. (i.e. the same principle as the incorrectly named "radiators" in your central heating).

[IMM]

See a doctor.

[IMM]

You have that wrong. "only 29.6 yesterday and still a freezing 21 indoors". All the country is having fun outside and these people are stuck inside. How sad!

[IMM]

No.

Who is he? Does he wear CAT boot like you?

[IMM]

As we know little about a/c compared to the USA, I don't think they would look at BRE. I know US architects and institutions look at BRE re: many matters.

[Gnube]

See me after school you egregious puppy!

Take Care, Gnube {too thick for linux}

[Julian Fowler]

Let me try this one more time: the executive summary of the paper you cited does not support the conclusions that you claimed. If the body of the paper contains different (and conflicting) information then it is *bad* research, and neither the paper nor the summary are worth reading. You cannot infer from modest claims about the effectiveness of radiant materials in the attics of Florida homes with shingle roof coverings that the same approach would be equally effective in reducing the internal temperature of a typical UK house, with stone or tile roof covering (which in many cases will not be directly exposed in the roof void), in different climactic conditions.

As others have pointed out, the amount of *radiant* heat produced by the underside of a typical roof in this country is negligible.

Julian

Julian

[Gnube]

He can't do, at least most people accepted that Jack has always had a value of some sort!

Take Care, Gnube {too thick for linux}

[Gnube]

She's probably cooler at that lower altitude, which must be nice for her, but I had no idea she tapered off like that! ;O)

Take Care, Gnube {too thick for linux}

[John Rumm]

Aha! - I think I now understand:

IMM must actually be some type of reptile... hence the 21c most of us humans find pleasant, he will find "freezing". Presumably he needs to crawl out from under his stone onto a hot rock for a few hours each morning before being able to function well enough to post to Usenet.

- this could explain allot! ;-)

[Andy Hall]

In the context of the insulation afforded by the other surfaces in a typical property, the value tails off after about 100mm.

Look at the sums for a typically constructed property from the last 50 years and going beyond that is making small changes to a fairly small part of the total heat loss or gain.

You don't normally let that get in the way of principle.

.andy

To email, substitute .nospam with .gl

[IMM]

A fan and some ventilation extraction is al you need. a/c is overkill.

[Andy Hall]

I'm talking about houses of the construction that people typically have, not experimental stuff, which while it may be interesting, is not relevant to practical situations.

If you do the heat loss (or gain) calculations for a brick and block property with tiled roof, having ridiculous amounts of space wasting insulation in the roof space is making no more than a tiny difference when set in the context of what is gained or lost through the walls and windows.

You are the one who is advocating saving space sufficient for a couple of pairs of shoes over a hot water cylinder, yet filling a loft to a point where useful storage space is lost is OK. A little inconsistent, isn't it?

.andy

To email, substitute .nospam with .gl