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Re: Attic Solar heat recovery - Page 2

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Posted by nicksanspam on July 19, 2005, 12:52 pm

With some figures, you may decide to leave out the insulation above it.

A transparent attic might be happier with an 8'x32' shallow EPDM-lined
drain-down pond 6' above the floor, with a poly film cover.


Posted by News on July 19, 2005, 1:57 pm

I could put insulation on the whole inside of the north facing aspect of the
roof. That would retain heat to some extent and help keep freezing away from
inside. That is not dificult to do.

If It was going to do anything remotely like that, it would be a full
integrated solar roof, heating a large thermal store heating very low temp
underfloor heating.  A very big and expensive retro job, requiring much

Posted by nicksanspam on July 19, 2005, 5:33 pm

Good idea. Then make the south roof transparent.

Oh dear. You might just replace the south roof for about $/ft^2.


Posted by News on July 20, 2005, 1:51 pm

$/ft^2, sounds a bit too cheap and nasty.  It would have to look well.

Posted by Mark on July 19, 2005, 1:57 pm
 but what about when it is below freezing, part of the system design
needs to deal with prevention of freeze damage.


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