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→Interior Fittings
Inside the hull, non-watertight bulkheads and other interior fittings are usually screwed to hull stringers. This breaks the paint seal on steel hulls, and can lead to corrosion. Another way of doing this is to attach a neoprene rubber strip to the stringer, using waterproof contact cement. A marine-grade plywood furring strip is cemented to the rubber strip. Bulkheads, etc., are then screwed to the furring strip. This preserves the protective coating of the paint system, and flexibly mounts the interior which reduces [[AcousticIsolation|noise conduction]].
Cabin walls are usually marine plywood with a veneer finish, which doesn’t reduce noise transmission much. Unless you want to listen to every noise from your neighbour or the adjacent head, make the cabin walls hollow, and insulate them with DFM mineral wool or an aerogel sheet<ref>Aspen Aerogel Inc., http://www.aerogel.com/</ref> or use structural insulated panels (SIP). Aero-gel Aerogel is also an excellent thermal insulator, with a value of around R22 per inch.
Cabin soles are marine plywood or SIP, covered with a hardwood or tile.
