jgorm

No, dynamat is a waste of money. I've used at least 4 different brands including dynamat extreme, but now I only use Jiffy seal and tin foil from costco. It costs about 4x less and does the exact same thing. It feels the same, applies the same, looks the same, but costs way less. see here for more info when I put it on my crown vic 2003 Crown Vic. The other stuff I used on my mortorhome is here. Soundproofing the cab and doghouse

Joe
Thanks for your reply on my fume thread.
I have looked at your web site, and you've done a lot. I am interested in really insulating the coach of my Born Free. The factory stuff is starting to come out of gaps in the inside lining as orange powder.
Would you recommend Dynomat for the RV Coach? My goal is 4 season comfort, from winter expeditions in the Colorado Mountains to blazing summer desert trips.

Regards

Rolf