Quote:
Originally Posted by slaveern  Ethan,
Just curious - is there a reason not to pack them too tight? Also, what is the 'impact' of filling the cavities with denser materials like 703/705? Is it just about cost/effectiveness? |
Good question.
This question relates to a new problem I have... I was about to simply add 4" or 6" of the "pink stuff" behind the walls as discussed above, but now that the walls are complete, I am finding that I just don't have enough room behind the walls for 6" or even 4" of batt insulation. Remember, the space behind my walls is a "service gap", I need to be able to walk through there... it's a lot tighter than I thought... I guess I need to lose a few pounds
...
Anyway, looks like I can only get about 2" of stuff along / behind my wall. I see that 703 / 705 is sold in 2" thicknesses... I am going to guess that, because I have only 2" to work with that 703 / 705 WILL be the best option at this point? Yes? Or should I get 3.5" R-13 batt insulation and compress it to 2"? Which will offer better performance in this application or perhaps they'd be the same?
Also... WHAT is the difference between 703 and 705??? Which one is preferred for general sound absorption? Is one "better" than the other in terms of absorption? Does each have a different "favorite" absorption frequency range?
Thanks
