I guess I need to do this even though I don't want to. Aliphatic resin (not alphetic) and hide glues are used in higher end guitars as adhesives but I don't think most players reading this thread care about that. They just want to know why their guitars are
susceptible to temperature extremes. The LMI version of aliphatic resin
is a higher end adhesive than
Titebond and that is why it is used by luthiers building or repairing quality instruments. Cheaper guitars are made with epoxy, superglue (cyanoacrylate) and even contact cement.
Not to knock superglue because it has many uses in the luthiers shop. To address the basement question; I have a hygrometer (humidity measuring device for those who care) in my shop which happens to be in a basement. I have never seen the relative humidity drop below 40-45% (ideal) in the winter but have seen it soar above 65% (very bad) in the summer when my dehumidifier was off due to power failure. As most, if not all dehumidifiers don't work when the temperature falls below 65 and the relative humidity is 50% or lower, I think your guitar will be much safer with the dehumidifier
on. I also think that most of us reading this thread are wise enough to
check your latches before you pick the case up! I've been playing for 26 years and have yet to pick up my case without first making sure that the latches are closed. My advise was given assuming that your intention was to take the guitar out and play it. All that being said, the single most hated enemy of a good guitar, or any guitar for that matter, is not playing it. Take that guitar out and play it! The wood will stay 'alive' and so will your soul! Enjoy!!!