Author Topic: Questions about soundproofing existing walls  (Read 4627 times)

hearandnow

  • Guest
Questions about soundproofing existing walls
« on: May 07, 2009, 06:02:22 AM »
Our house is less than a block away from the train tracks, and the train horn is quite loud.  I'd like to sound proof my existing walls in my room after I put in a second interior window.   I was going to use green glue with another sheet of dry wall, but I was reading that since my walls are textured, it might not work.  If I use MLV with psa to adhere to the walls, could I then use the GG to attach another piece of dry wall? 

Randy S

  • Guest
Re: Questions about soundproofing existing walls
« Reply #1 on: May 07, 2009, 03:15:16 PM »
Having textured walls will not have any effect on the performance of green glue, however by adding the MLV w/psa will greatly improve your overall results especially when dealing with a train horn. It will deliver immediate results and improve over the 30 day cure time. Keep in mind the more Mass you add to the wall the greater the reduction you will get...Train horns are not an easy problem to address due to the vast range of frequencies they generate ...and they are specifically designed to go far distances.

hearandnow

  • Guest
Re: Questions about soundproofing existing walls
« Reply #2 on: May 08, 2009, 02:03:36 AM »
Is 2# MLV the same as 2 strips of overlapping 1# MLV? 

Randy S

  • Guest
Re: Questions about soundproofing existing walls
« Reply #3 on: May 08, 2009, 04:14:27 PM »
Actually using 2 layers of #1 MLV would perform better than #2 MLV.
#1 MLV = STC 26
#2 MLV = STC 33
2 layers of #1 MLV= STC 36

 

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