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Ok. Decision time.
1/ Paint the north wall with silver bitumen paint to reflect heat.
The west wall is shielded and the east wall only gets an hour or two
of sunlight before the house shields it.
2/ Foil bubble wrap insulation fitted to the inside roof and walls.
I'm going to try to stick it directly to the metal with no air gap so I've got a
full moisture barrier. Will try using “quick grip” spray adhesive on a wall first
to see if it sticks.
3/ Fit passive vents on both sides at the top and bottom to see if I can get some air flow going. That should help equalise the inside and outside temps on a hot day and cool it down at night.
That'll keep me going for a week or so. Will see if I can get some temperature data over summer to report back.
Thanks for the help.
Cheers
Stephen
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