Re: Headliner fix
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I normally say something like, "trust the original design." But, "trust" is what got us to this point. I think Henri Amel trusted the polyfoam manufacturers to deliver a good product to the vinyl covering manufacturer. And, I believe that Henri Amel trusted the polyfoam backing on the headliner to last a lot longer, but so did most automobile manufacturers at the same time period.
I really do not have the kind of thermal engineering background to be sure that the following comments are 100% correct, but I believe they are:
An Amel is an unusually dry boat, however, one can change the original design and unintentionally create barriers that aid/cause moisture to form from condensation because of a difference in temperature. This is sometimes inadvertently done by modifying refrigeration or air conditioning, and I assume could be done by adding a non-breathing barrier to the ceiling where the outside temperature and inside temperature can merge to create condensation. I believe that I am correct when I say that most boat builders use materials that breathe in these situations (including the foam layer on the backside of the vinyl in an Amel).
I suggest recovering the ceiling with a foam-backed vinyl from a "trusted source."
On Sat, Feb 22, 2020 at 9:17 AM Chip Beaman <chip@...> wrote:
Thank you Bill, I have read and spoke to folks about the daunting task of headliner replacement. To do it right, replacing the headliner is the right thing to do, I guess, that’s what I am trying to find out. The current owner did a fantastic job covering it and I love the look of it. My great concern, is mold growth in areas of higher humidity. Mold mitigation strategies are a given, regardless of the current liner solution. I just don’t know if it is a bridge to far to expect normal processes to keep mold from growing between the old liner and the covering material (painted plywood)???????