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re: today's high, in the solar attic
25 oct 1995
dan settles wrote:
>hi nick,
hi dan :-)
>glad to see you are still sharing information on your solar experiment.
i'm happy that there is more than one of them underway: david boyer's
greenhouse, the small solar house on top of the science building at the
local college (donations still welcome :-), and the roof of my house. now
that the small solar house is up on the roof and working, the next thing
i want to do is to bring down some hot air from my attic with a fan, and
add a lean-to sunspace on the front of my house, using some curved steel
pipes and plastic film glazing, standard commercial greenhouse materials.
>i was wondering if you are approaching the upper temperature limit for the
>polycarbonate. i can't remember what that upper limit is, but i was
>wondering if you may start degrading your roof if it gets much warmer?
i don't know what the upper limit is either, but nothing's sagged or melted
yet, and the fires are under control :-) the manufacturer says that a
continuous temperature of 130 f is no problem.
nick
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