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Cob: Re: Re: Insulating in cold climatesMichael Saunby mike at chook.demon.co.ukTue Jun 20 08:49:20 CDT 2000
----- Original Message ----- From: "Bill Hunt" <billhunt at redrock.net> To: "Julie Newhook" <julie.newhook at nf.sympatico.ca>; "Coblist" <coblist at deatech.com> Sent: Tuesday, June 20, 2000 4:13 AM Subject: Cob: Re: Insulating in cold climates > Hi Julie- That's an interesting idea. It would take a great deal of fleece > to insulate a house. Do you have large volumes available to you? One > thing that would complicate using it with cob is that generally you are > better off with most of your thermal mass (such as cob) inside of the > insulation, so it can store heat from passive solar, or any other heat > source. Do you have some equations for this? I'm sitting here thinking, it's been quite warm here for a few (quite long) days, and the temperature inside the house just stays much the same. What would insulation on the outside of the house do? Well during the day it would perhaps stop the outer inch or two of wall heating up, but then a reflective coating (say white paint) would do much the same and during the night it might stop the same couple of inches cooling down. If I actually wanted to change the temperature of a room inside the house I'd still need to use a fantastic amount of energy to change the temperature of the walls. Of course you don't, it's just a case of raising (or lowering) the temperature of the air in the room and accepting that the walls will either warm or chill it. I think I'll just stick with my current scheme. If it's cold out then I'll need less clothes when I'm inside than out, and the reverse when it's warm out. But then if you spend all your time outside who cares, and if you spend all your time inside you'd do better to worry about ventilation and the ill health that poor ventialtion can cause. Michael Saunby
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