Working on our 1975 Argosy 26' today, and began taking off the interior skins. The insulation around the front windows was a nasty, soggy, bug and excrement laden mess:
On the plus side, it is now out of the Argosy, and once I regasket the windows and re-seal everything, I shouldn't have to worry about it getting wet anymore !
By contrast, the insulation in the 'upper section' appears to be in immaculate shape. The portion I can see, looks like it was brand new:
My question is, should I still replace it? If it ends up being in good shape, any downside to just leaving it there and only replaceing areas that are damp/damaged?