Insulation Question

[DDev]

I'm about done with getting my walls done on my "studio", and now I'm working on my ideas for acoustic treatments.

I have a friend who just finished building a house and he has a ton of the pink Dow/Corning "Foamular" rigid foam insulation panels leftover that he has offered to give me if I can use them. My question is how these compare to 703 for acoustic absorption (ie. is a 2" foam panel roughly equivalent to 1" 703)?

Thanks.
Darryl.....

 

[ob]

If these are styrofoam like, they have no soundproofing capability at all, as I understand it.

 

[Natural Gass]

I used that rigid syrofoam inside the walls of my basement studio hoping it would sound proof it. It doesn't work near as good a those textured aqoustic tilies, but it is diffenitely better than nothing.

I think the best part is that it helps keep the room nice and warm in the winter if I keep the door closed, since the room is located downstairs.