I was thinking of buying a Dynamat kit for insulation in the car and I saw Ultramat product which is far cheaper, while it is not as efficient as Dynamat, you could double up the thickness of Ultramat to boost its effectiveness. I can buy 60sq feet of Ultramat for $11, while Dynamat is far more expensive at $145 for 36sq feet. The old jute insulation back in the day is probably comparative to the Ultramat. Doesn't do a bad job really.
What are other peoples thoughts?
