any suggestions?
Steve
Few layers of Kingspan?
http://www.poolsandtubs.co.uk/supabloc_insulation.php
Yes around the side i suppose. Underneath i don't know if it'd handle the
compression. Can anyone work out the compressive load of 2 meters of water?
i.e. using supabloc 7, could it cope with the weight?
http://www.tarmac.co.uk/TopBlock/DuroxSupabloc7.aspx
Steve
Huh? That's easy. A cubic meter weighs near as dammit a tonne. (varies
with temperature, but not enough to matter) so you are getting 2 tonnes
per square metre, 20KPa or 1/5 of an atmosphere. 3 PSI even.
What? The blocks are in N/mm^2! that's a barsteward unit if ever I saw
one!
One Pascal is one Newton per square metre, so 7.3N/mm^2 is 7.3MPa.
Those blocks are easily strong enough.
Whether they'll still insulate when they've soaked up ground water for a
couple of years I have no idea.
Andy
Surely a bit dangerous to disregard the forces on the sides. Could lead to a
massive failure.
Isn't earth a reasonable insulator by itself?
Surely the biggest heat loss, and the one most difficult to insulate will be
the top surface?
--
Dave - The Medway Handyman
www.medwayhandyman.co.uk
Not compared to PIR foam... 100mm under the floor slab and around the
edges would make a massive difference,
> Surely the biggest heat loss, and the one most difficult to insulate will be
> the top surface?
You can float a thermal cover on top when not in use. It will actually
add to the water temperature on a sunny day. It prevents evaporation
losses (water and more importantly heat) as well.
--
Cheers,
John.
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--
Rod
Hypothyroidism is a seriously debilitating condition with an insidious
onset.
Although common it frequently goes undiagnosed.
<www.thyromind.info> <www.thyroiduk.org> <www.altsupportthyroid.org>
> The Medway Handyman wrote:
>> Mr Sandman wrote:
>>> Obviously popping some polystyrene board down the side of a pool as
>>> its being back filled takes care of the sides, but is there any thing
>>> strong enough to stand the weight of a pool 7 foot deep? I.e., is
>>> there a product that i can install in the hole that i can build the
>>> pool on?
>>
>> Isn't earth a reasonable insulator by itself?
>
> Not compared to PIR foam... 100mm under the floor slab and around the
> edges would make a massive difference,
>
>> Surely the biggest heat loss, and the one most difficult to insulate will be
>> the top surface?
>
> You can float a thermal cover on top when not in use. It will actually
> add to the water temperature on a sunny day. It prevents evaporation
> losses (water and more importantly heat) as well.
Yeah, what he said. From memory, mine had a layer of some sort of plastic
foam, about 10-12mm thick across the floor and the sides were covered with
something like extra thick hessian wadding. I think both were put there
more for protection of the liner than insulation. The greatest heat loss is
at the surface, a solar blanket is an absolute must.
--
The Wanderer
Inertia keeps me going!
ta for this. So King span is strong enough? cool. Yes it is an out side
pool situated in France. I will be heating it by solar panels and my aim is
to make it useable for as much of the year as possible.
Ok, so i go with king span. Do i go with their thickest sheet or does it
matter much? Obviously i need the pool to be stable over a good few years,
so no movement in the floor is essential. Should i lay them directly on the
bottom of the hole i dig, or add a concrete slab under it as well as the
pool bottom slab over it?
Steve
The actual m,ass of water in a pool is VAST. it is its own heatbank.
The volume of soil between it and the air is also vast.
Complete waste of time to insulate.
Going from nothing to 25mm generally makes a big difference.
Increasing the insulation above that makes much less difference.
By far the most important area to insulate is the top of the
pool, where the warmer water will tend towards, and heat loss
by evaporation and wind-chill is significant.
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
I should add I'm not a pool designer, but I do know a _little_ _basic_
physics.
Andy
i think the kingspan would get damp and not be much use
[g]
>Check out www.wanky-spam.com they have government grants to insulate old
>and new swimming pools, we've just had our's done and got the insulation for
>free, they are really helpful our pool heats up so much quicker.
Spamfucker. Piss off.
>> Check out www.wanky-spam.com they have government grants to insulate
>> old and new swimming pools, we've just had our's done and got the
>> insulation for free, they are really helpful our pool heats up so much
>> quicker.
>
> Spamfucker. Piss off.
That's not a very nice thing to call our MP's.
--
Cheers
Dave.
>> Spamfucker. Piss off.
>
>That's not a very nice thing to call our MP's.
The oik doesn't even have a proper moat.
>>> Spamfucker. Piss off.
>>
>>That's not a very nice thing to call our MP's.
>
> The oik doesn't even have a proper moat.
Or even a Duck House, what is the world coming to if one can't have a moat
and duck house?
--
Cheers
Dave.
It's class envy. You don't hear complaints about pigeon lofts and
whippet kennels.
If the MP didn't have a duck house he'd be lambasted in the press for
making the poor little duckywuckies sleep out in the cold.
Can't find duck houses in the Argos catalogue ...
Owain
>> Or even a Duck House, what is the world coming to if one can't have a
>> moat and duck house?
>
> It's class envy. You don't hear complaints about pigeon lofts and
> whippet kennels.
Has any of our illustrious MPs used any part of their allowances for
pigeon lofts or whippet kennels?
--
Cheers
Dave.
They cant wait to get away from their wurking clarrss roots and pretend
to be toffs.
I think pigeons and whippets as acceptable interests for MPs were
abolished by New Labour in 1997 as not being New enough.
The only MP I could find online of the whippet-keeping persuasion is
Canadian.
Owain