That is a serious concern. Repairability of the top is something that is probably very limited, although the rest of the construction and bracing is fairly conventional. My luthier gave me a 10 year written warranty, although with me being nearly 71 and corona virus all around, the big question is will I have sufficient longevity.
A. John Mardinly, Ph.D., P.E. Classical Guitarist/Lutenist On Mar 25, 2020, at 5:43 PM, theoj89...@new-old-mail.cs.dartmouth.edu wrote: My concern with a double top is longevity: How will that top hold up 50, 100, 150 years from now? Any structure built up from layers glued together, and subject to vibration, will presumably come apart, eventually. What will look like in a double top? Loose Braces, detached bridges are usually relatively easy to repair on a solid top guitar, but will structural failure on a double top destroy the instrument? How do these epoxies hold up over time? Do they become more brittle? Maybe I've had too many instruments in need of significant repair, but I am concerned about how these double tops will fare with decades of use. -- To get on or off this list see list information at https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartmouth .edu_-7Ewbc_lute-2Dadmin_index.html&d=DwIBAg&c=l45AxH-kUV29SRQusp9vYR0n 1GycN4_2jInuKy6zbqQ&r=VLPJ8OE-c_C6joGeE1ftlvxMmQPq9N6mpKZONBRt90E&m=-yO hA50WK65NW3xBMgXuMiHTVsdYObz1K0em5_69r9E&s=-o3eIq8lcHOWVWfPilfhFX-n7q4z ucgiu3hUG00o7lk&e= -- References 1. mailto:theoj89...@new-old-mail.cs.dartmouth.edu 2. https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartmouth.edu_-7Ewbc_lute-2Dadmin_index.html&d=DwIBAg&c=l45AxH-kUV29SRQusp9vYR0n1GycN4_2jInuKy6zbqQ&r=VLPJ8OE-c_C6joGeE1ftlvxMmQPq9N6mpKZONBRt90E&m=-yOhA50WK65NW3xBMgXuMiHTVsdYObz1K0em5_69r9E&s=-o3eIq8lcHOWVWfPilfhFX-n7q4zucgiu3hUG00o7lk&e=