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<p>The answer is it probably depends on which part of the country
you live in. If you're in the eastern half of Texas where
relative humidity levels in the summer might hover around 70%, you
can make a strong argument that the vents should be shut
year-round. The idea that allowing cross-airflow to carry
moisture out of the building doesn't work if the air you're
outside air you're drawing in has even higher water content. <br>
</p>
<div class="moz-cite-prefix">Decades ago, the belief was that
crawlspaces needed to have good airflow. Some people even
replaced their vents with small fans. These days the mindset,
including that of the Department of Energy, seems to fall solidly
into the seal-up-your-crawlspace school of thought.<br>
</div>
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<div class="moz-cite-prefix">J</div>
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<div class="moz-cite-prefix">On 10/30/18 10:57, Robert Nogueira
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:A1379A23-F135-4D12-B8EF-FFE1BE1A2C9E@me.com">
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<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span
style="font-weight: bold; background-color: rgba(255, 255,
255, 0);">The house attached to my garage is pier and beam
with a crawl space. On two ends of the foundation are some
vents which have removable covers. The covers have been on for
many years, The crawl space is bone dry.</span></p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span
style="font-weight: bold; background-color: rgba(255, 255,
255, 0);">The question, do need to remove the covers? If so
which season?</span></p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span
style="font-weight: bold; background-color: rgba(255, 255,
255, 0);">Thanks,</span></p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span
style="font-weight: bold; background-color: rgba(255, 255,
255, 0);"> Bob in Texas </span></p>
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