Had two solar attic fans installed in our home when we moved into it. I have a remote thermometer so I put it up in the area over the garage. The maximum temp noted was 125 with an outside temp in the mid 90's. I did not obtain temperature data before installation so I can't say how much difference it made but I suspect it was significant. Perhaps someone out there could record some data from an uncooled attic in a lantana for comparison.
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