Old 05-20-10, 08:59 AM
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Is there any reason for me not to caulk at the bottom edges of aluminum siding? had an ant problem last year - walking under the siding and nesting.
Old 05-20-10, 09:26 AM
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I don't think you need airflow and drainage behind the siding. Siding also needs to expand and contract with temp changes. A piece of siding can grow and shrink up to almost 1/2 inch in length, as I remember. I'd probably use a barrier spray or granules around the bottom.

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