FYI, Found the original insulation inside the dog house engine compartment had deteriorated and found part of it on the engine itself. This was on a 2004 Gulfstream Independence ( which I love!).
I took out the old and installed new mega insulation. Reduced the engine noise and decreased the heat I was experiencing through the dog house area below where the dog house cover is located.
Only found this as I was installing a new serpentine belt on the V-10.
Every one should be aware that the original insulation becomes heavy with soil and will separate from the walls of the engine compartment.
It was hard to get photos, but here is a few with the work in progress.