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Old 03-05-2011, 04:16 PM   #1
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Sealing the Hole in Exterior Wall


Hi there,

My husband and I need to close off two old stove/oven vent ducts on the exterior wall. They are about 12" x 5" rectangle cut outs. What is the best material and best way to go about this?

We were thinking about using a cut piece of OSB to fill the hole, then fill the edge gaps with some caulk, put Tyvek tape around the edges, and lastly screwing in a piece of overlapping plywood to anchor it to the inside of the exterior wall (almost like a flange). Will this be an effective approach?

Any advice would be helpful. Thanks so much!
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Old 03-05-2011, 05:12 PM   #2
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Sealing the Hole in Exterior Wall


Read your post back to yourself and see if you would be able to answer that question with the info given.

What's the siding?
What's the interior finish?

We need pics, we need pics, we need pics, we need pics........
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Old 03-05-2011, 07:03 PM   #3
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Sealing the Hole in Exterior Wall


What you have determines what you do.
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Old 03-07-2011, 04:17 PM   #4
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Sealing the Hole in Exterior Wall


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Originally Posted by Lollymagoo View Post
Hi there,

My husband and I need to close off two old stove/oven vent ducts on the exterior wall. They are about 12" x 5" rectangle cut outs. What is the best material and best way to go about this?

We were thinking about using a cut piece of OSB to fill the hole, then fill the edge gaps with some caulk, put Tyvek tape around the edges, and lastly screwing in a piece of overlapping plywood to anchor it to the inside of the exterior wall (almost like a flange). Will this be an effective approach?

Any advice would be helpful. Thanks so much!
I had a similar problem on an aluminum sided house. I cut a suitable patch from aluminum flat stock. Ran a bead of silcon caulk around the perimeter of the hole and the pop riveted the patch in place.
Self drilling, self tapping metal screws would work also! This would also work on vinyl. Although with vinyl, it would also be possible to remove some sections and install new.
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Old 03-07-2011, 04:26 PM   #5
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Sealing the Hole in Exterior Wall


Sounds good to me but then I have no idea what you are doing. A picture is worth a thousand words and you can quote me on that
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