Sealing a 4" diameter dryer vent hole

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Old 05-06-15, 09:21 AM
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Sealing a 4" diameter dryer vent hole

Hi,

I have an approx. 4" diameter hole though my foundation that was used for venting my dryer (I assume). Currently the dryer is being vented elsewhere, so I'd like to "repair" the hole. It's not a structural problem so I'm thinking that I won't need to fill it with concrete etc. It's around 3' above grade, so I'm not worried about water that much, but just want to stop air (heat/cold) loss.

Is there some type of plastic/rubber "cap" that can be placed over the hole and then sealed?

Thanks
 
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Old 05-06-15, 11:21 AM
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What is the wall made of? You posted in the masonry section of the forum. Does that mean the wall is brick, cement block or concrete?
 
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Old 05-06-15, 11:53 AM
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The foundation is concrete. I'll make sure this evening
 
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Old 05-06-15, 12:09 PM
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My unprofessional opinion would be to stuff some screen wire or whatever in the hole as a backer and then apply mortar to it. That way the finished job while visible will look similar to the rest of the wall [assuming it's poured concrete]

almost forgot welcome to the forums Dan!
 
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Old 05-07-15, 06:03 AM
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Checked the foundation last night. It is indeed poured concrete.
 
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Old 05-07-15, 07:57 AM
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I would use mortar to seal the hole.
 
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Old 05-09-15, 07:11 AM
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you can also install an expandable neoprene plug - check plumbing @ any apron/vest store
 
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