Is It Absolutely Necessary To Have A Dehumidifier In An Encapsulated Crawl Space? - Building & Construction - Page 2 - DIY Chatroom Home Improvement Forum


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Old 07-14-2012, 05:52 PM   #16
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Is it absolutely necessary to have a dehumidifier in an encapsulated crawl space?


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Originally Posted by joecaption View Post
Ventilation through the floor?
Depends, is there a 6 mil. plastic vaper barrier on the ground?
How may and what style vents.
Is the grade lower then the outside grade.
Do you have gutters. a grade outside the runs away from the foundation not toward the house, no mulch piled up again the foundation and no flower beds forming ponds for water to lay in up again the foundation?
is it just me. or is these comments totally useless.

encapsulation -- it means no vents

6 mil plastic -- not approved as a vapor barrier for a crawlspace floor 8 mil is minimum and ususally you want 12 mil. if people go into the crawlspace more often use 20 mil

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Old 07-14-2012, 05:55 PM   #17
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Is it absolutely necessary to have a dehumidifier in an encapsulated crawl space?


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Originally Posted by jcarlilesiu View Post
I guess I am unsure why the crawl space is intentionally being encapsulated.

It should be vented.

Is there a reason why you want to close it up?
code in the past required venting. Now they learned that this creates more problems then it helps. Too much moisture is brought into the crawlspace with venting.

Crawlspaces should not be vented!
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Old 07-14-2012, 05:57 PM   #18
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Is it absolutely necessary to have a dehumidifier in an encapsulated crawl space?


Dehumidifier will help. I would recommend a crawlspace EZ-breathe unit. Much less power consumption and will remove 4 times the moisture out of the crawlspace.

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