Decoupling the ceiling below is typically the best way to deal with footfall transfer between two floors and even for isolating airborne transfer. Damping alone with products like Green Glue Compound or QuietRock will not do the trick. They just won’t. Instead you need to insulate the joist space with basic fiberglass insulation, put up a GenieClip system with 25 gauge furring hat channel, and hang one or two layers of drywall from the hat channel. Adding a damping product to a decoupled ceiling is a good idea, but not without the clips.

Keep in mind too that including rubber underlayment in the assembly, even the thinnest stuff we sell, is a great addition for isolating footfall noise. If you look at testing for the Pliteq GenieClip in a standard ceiling assembly, you will see that you can easily achieve a 50+ STC and 50+ IIC rating. Add our QuietGround 125 to the assembly and your IIC rating jumps a quick six points. That is a huge jump for only adding about .60 cents per square foot in cost. That will put your rating in the mid to high 50’s for STC and IIC with under $2 per square foot of isolation products. That is a very low cost assembly with maximum results.

We recommend the Pliteq GenieClip for decoupling ceilings because of their extensive lab testing and more importantly the insanely good feedback from our customers for this product.

NOTE: STC measures airborne noise transfer and IIC measures impact noise transfer.

Comments are closed.