I just did my Damon 2 weeks ago. I did not have a chance to finish it yet before a trip, but I did manage to get the dog house and the immediate floor area done first. I used a combination of Dynamat hood liner and Dynamat extreme. It made a huge difference in not only the noise, but the heat coming through the floor area. Once I finish the whole project it should be a very large improvement over the factory work. There was a nicely installed layer of aluminum foil over the dog house, but nothing else for the noise or heat at all. My intent is to also do the generator area, even though it is actually pretty quiet and largely unnoticeable currently.