[Cob] PaperCob!

[GlobalCirclenet]

Radiant heat radiates in all directions at once, but convection heat does not. Can anyone not know that it's warmer near the ceiling than near the floor? Warmer air transfers heat through the ceiling/roof faster than cooler air through the walls. 

paul tradingpost at lobo.net

Beware of all enterprises that require new clothes. 
--Henry David Thoreau 
*********** REPLY SEPARATOR  ***********

On 7/6/2006 at 2:07 PM Clint Popetz wrote:

>On 7/6/06, GlobalCirclenet <webmaster at globalcircle.net> wrote:
>>
>> >Unless I've missed something here, I think this still-conceptual wall
>> >system may be the easiest way to build an almost-all eco-earthen house
>for
>> >extreme climates, that's round, warm, and fuzzy, and still doesn't
>require
>> >any high-tech industrial equipment before, during, or after.  The Peak
>Oil
>> >Papercob Wall... can you find fault with it?
>>
>> I'm afraid it's a nobrainer. Most heat loss is through the ceiling,
>> windows, and doors, obviously. Heat rises, and no amount of R-value in
>> the walls alone will reduce total house heat loss enough to notice.
>
>Aiee!  No!  It is true that hot _air_ rises, but heat travels in all
>directions at once.  Heat loss through walls is a huge deal.  I'll
>admit your attic is the first place to look if it's not properly
>insulated, but after that, getting a good vapor barrier on a wall, and
>decent insulation, and looking out for thermal bridging...these things
>are a must for a well-insulated house.
>
>-Clint