I am going to install R19 above the tiles for some piece of mind that I treid to do somthing and I'm sure would be cheaper and maybe as effective as the Roxal in this case? If so you just saved me a lot of money! I would have liked to drywall the ceiling but it would be against code for my situation. I do have some ideas with the ceiling like putting in some fiber optics as a night time effect. I am trying to make the best of what I have and this site is great for me as a newbe to get ideas from.:sn:From an isolation standpoint, you're limited using drop tiles. The Roxul will help a little. From the standpoint of allowing the ceiling to be a large broadband bass absorber, it won't change much.
Thanks for the heads up, yes I did put down P.T for the bottom plate and also used PL premium glue.If you are putting in just carpet, it should be fine. However, some moisture will wick through the concrete. But carpet breathes, so it should not be a problem. Hardwoods or laminates are another story, though.
Also, if you haven't framed yet, make sure the bottom plate is pressure treated (the part that meets the concrete. Even with the basement being dry, the wood can absorb and hold moisture and slowly rot. Probably won't be a problem, but it would be a major pain if it did.
Funny you should say that, when I bought my house everything from my other house that was in the attic and basement was put into my existing house which was built in 1913 and we just had hurricane floyd and it dumped 15 inches of rain and man my basement was under water so I knew I had to do somthing so I dug it out and fixed it.You should be fine. I just moved to a house with an unfinished basement. We think it's dry, but are holding off for a year before we finish it just to be sure. I know too many people who have re-done their basements due to surprise floods and inadequate drainage. Sounds like you are all set though.
And remember, pics, pics pics!
I am going to fill between the joist with R19 and again with R13 going the other dirrection above the drop ceiling in hopes that it will dampen some of the highs and noise from going upstaires. I also will be making some wall mounted noise traps.Like I said, from a purely isolation standpoint, the Roxul will do a little bit better. From an in-room performance standpoint, not much - unless you can fill the whole cavity above the drop with std insulation rather than just say 4" of Roxul.
Dam ! foiled againonder:. I am going to try it anyways and let you know if there's any difference.Good thought but it really won't do anything for absorption or for isolation. Just not the right material.
I am trying to deaden the room a bit and also stop sound from passing both ways through the floor.Which are you trying to accomplish? Isolation? If so, one easy and relatively inexpensive way to go is to simply cut drywall and glue it to the underside of the subfloor above. That will increase the mass and reduce the transmission while only reducing the cavity depth for insulation by 1/2"