Has anyone ever heard of or used this stuff? It is a 1/2' thick 4'x8' sheet similar to plywood but it is listed as a sound deadening insulation.
I think it has an R-value of 1.2, but I am more interested in its sound deadening qualities.
I am hoping to cut down on the road noise and keep the roar of the screaming jimmy at bay. I love the sound of that engine and I can, and have, listened to its mechanical symphony clear across the continent, but I think it will be a more pleasurable experience for the family if its toned down a little.
I was planning on doing 1/2" rigid foam over the existing plywood, then 1/2" plywood over that. This would replace the foam but its double the cost per sheet, at about 1/2 the thermal insulation.
I think I will be ok with the loss of r-value, the floors on this bus are already 1.5" thick plywood so the heat gain/loss is slower than just sheet metal, but is the soundproofing worth double the cost? Are there better/cheaper options?