A second layer of iron is a well established method of beating the heat,
but to work properly you need a path for the hot air below the top layer
to escape, basically the extra joists need to be set up running with the
slope so the hot air can rise and vent out. It works by preventing the
heat radiating off the iron to those below, a radiant heat barrier with
an air gap. You can do the same thing for your house using reflective
batts with multiple layers to block the ingress of radiant heat through
the ceiling. A good method for keeping small animals a touch cooler is
to provide water bottles that have been frozen. We've got a pet guinea
pig and he'll sit right next to the frozen bottle on a hot day and even
lick the condensation off it. Though in 45° heat it'd would need
replacing every few hours I guess. Better yet is a cellar if you have
one, they don't live underground in White Cliffs for no reason.
regards,
Chris Ross
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www.birding-aus.org
birding-aus.blogspot.com
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