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Old 03-10-2018, 03:55 PM   #2
atreis
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Join Date: Jul 2014
Posts: 128
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19RSD is laminated, right? These are made up of an exterior panel, a thin piece of ply, foam insulation, another thin piece of ply, and the interior wall, with aluminum framing.

The aluminum framing members would not be regularly occurring like a wood frame is. The aluminum verticals would primarily be on either side of openings for door, windows, and in the middle of large expanses of empty wall.

That said, laminated walls are quite strong, so it might not be necessary to have backer.... Strong enough? I don't know.
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