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The detail box above shows how the water, leaking into the interior, rotted away the sills and studs
supporting the aluminum structure. There was no way to see this without removing the aluminum siding
covering the substructure.
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After the sale, the new homeowner discovered that the Florida room leaked water in several areas. After
dismantling the outside aluminum siding it was discovered that the flashings were installed improperly
(backwards!) and the wooden substructure was made entirely of plain wood - not pressure-treated wood
as it should be. Most nails were not galvanized, so as soon as they became wet, they rusted, and that
rust formed the conduit for even more moisture movement to the inside walls.
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