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From: arider (no email)
Date: Thu Jan 11 2001 - 22:59:52 EST
I have been researching and listening closely to anything said about
insulating the hull prior to installing a wall finish. Mine is a steel hull
and I have special concerns about condensation running down the hull sides.
Spray foam seems to be the norm for new boats but there is a lot of
controversy about not being able to get to a problem area, the mess to spray
in and clean up after, water mitigating into the foam from condensation, and
the high cost.
Sheet foam type insulation is a problem because you must somehow glue it to
the hull without any air spaces or condensation will form between the
insulation and the hull.
Fiberglass insulation holds moisture.
Others have tried products that are made for a variety of uses....except
insulating boats.
I don't think it need be such a complicated or costly thing to do because
the "need for insulation" is a matter of opinion anyway!
To add a couple of more suggestions for products to use for insulation and
soundproofing that might be less expensive to use than the marine products
available............for those who like alternative ideas....
Automotive soundproofing sheets...are under the floor carpet and on the
firewall in cars. Why not use it in boats under the cabin carpet or for
engine room sound insulation?
Synthetic carpet ( most all is nowadays anyway) glued to the hull sides
would insulate and provide a non-dense area for condensation or humidity to
evaporate. (air space) Put a piece of carpet over a cold floor and what do
you get?
What would be some ways to glue the carpet?
Could you then add unfaced fiberglass batts over the carpet?
I know these are not the "accepted materials" to use but they are, or can be
fire rated for flame spread and would be inexpensive products for some of us
that are trying to convert or restore older boats to use for live-aboards.
Your ideas.......?
Bob Clinkenbeard
Twin Screws Enterprises
To accomplish a great task you must act....and dream.
TWIN SCREWS 1964 Chris Craft Roamer 56
Photos http://albums.photopoint.com/j/AlbumIndex?u=163724&a=1673119
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