Quote:

Originally Posted by

I think its a wonderful idea. You can play with the following calculator to get a feel for the benefits of using this method: http://www.stanleyhallstudios.co.uk/pacalc/

Of course this is simply a calculation, but can still give a good indication to the difference of materials.

Flow resistivity of OC705 is roughly 30,000 - resistivity of pink fluffy is about 5,000

Use the average depth of the corner to get a somewhat more accurate picture.

I also recommend selecting "Miki (1990)" from the "Model" section on the left.

Cheers!

**GIK Acoustics**I think its a wonderful idea. You can play with the following calculator to get a feel for the benefits of using this method: http://www.stanleyhallstudios.co.uk/pacalc/

Of course this is simply a calculation, but can still give a good indication to the difference of materials.

Flow resistivity of OC705 is roughly 30,000 - resistivity of pink fluffy is about 5,000

Use the average depth of the corner to get a somewhat more accurate picture.

I also recommend selecting "Miki (1990)" from the "Model" section on the left.

Cheers!

Well it looks like it wont make much difference at all according to the graph. Green is with the OC705 and a 10" air gap, which is what I have now. Blue is with the OC705 and 10" of pink fluffy insulation behind it.http://www.stanleyhallstudios.co.uk/pacalc/pacalc.php?m=4&s11=2&d11=101.6&v11=30000&s12=2&d12=254&v12=5000&s21=2&d21=101.6&v21=30000&s22=1&d22=254