Click here to view this in a PDF VersionEffects of Green Glue in a Wood Stud Wall |
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Results: Green Glue transforms the sound isolation of common wood stud walls from poor to excellent. For wall of the same weight in this comparison, Green Glue adds 10 STC points and improves low frequency performance by as much as 12 dB. |
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Effects of Green Glue in a Staggered Stud Wall |
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Results: Green Glue works on normally high performance walls such as staggered stud walls as well. For walls of the same weight in this comparison, Green Glue adds 9 STC points and improves low frequency performnace by as much as 10 dB. |
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Effects of Green Glue on Poorly Installed Resilient Channel |
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Results: Walls built with resilient channel are frequently installed incorrectly with screws penetrating into studs and eliminating the flexibility of the resilient channels, creating short circuits. Adding Green Glue and drywall to such walls dramatically restores the performance of these walls, allowing poor-performance resilient channel walls to be 'repaired' in the field without expensive reconstruction. |
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Effects of Green Glue in Floors - Field Test |
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Results: Hard surfaces like hardwood and tile often result in excessive noise from footsteps and other impacts on the floor. This field test shows how effective Green Glue can be at reducing those. Even with the harder tile surface, results are substantially better. |
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Effects of Green Glue in Floors - Lab Test |
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Results: Green Glue in a floor results in large reduction in footsteps and other impact noise. Used just in the floor, with no changes to joists, insulation or ceiling, Green Glue reduces impact noise by an average of 8.5 dB. IIC improves 7, STC improves 6. |
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Effects of Green Glue in a Steel Stud Wall |
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Results: Green Glue improves the performance of metal stud walls considerably. For walls of the same weight in this comparison, Green Glue adds 9 STC points and improves low frequency performances as well. |
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Green Glue vs. Factory Damped Drywall with Resilient Channel |
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Results: Green Glue easily outperforms these 2 types of factory-damped drywall, especially at low frequencies. The higher weight of a Green Glue assembly (2 layers of conventional drywall + Green Glue) relative to a thin factory-laminated panel and the superb performance of Green Glue itself deliver better results. |
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Green Glue vs. Competitive Damping Glues |
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Results: We know of no competitive products that perform as well as Green Glue, although there are some that claim to. Two comparisons are shown here - same frame, same weight of drywall, same application of damping material - but both fall well short of Green Glue's performance, especially at lower frequencies. |
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Green Glue vs. Factory Damped Drywall - Wood Studs |
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Results: Green Glue outperforms all thin factory-laminated “soundproof” drywall products. Even exotic ones with metal and more than one layer of damping material. The secret to Green Glues superior performance is simple. A Green Glue wall, with 2 layers of normal, low-cost drywall, weighs more. And a Green Glue field application gives a wall with much more viscoelastic material than is contained in factory-laminated panels (which tend to have a very thin layer). Lastly, Green Glue is higher in performance than any other damping material of its type, anywhere in the world, that we are aware of. These advantages are particularly evident at lower frequencies, where Green Glue is up to 8 dB better than the factory-damped product on the same assembly. |
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Green Glue vs. Conventional Adhesives |
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Results: Green Glue's performance is superior to all conventional off-the-self materials. Rigid adhesives lowere performance by stiffening the wall. Common flexible adhesives, like silicone sealant, do not lower performance but contribute very little and tend to be fairly expensive. Green Glue has a dramatic positive effect on wall performance and is both more effective and more cost-effective than any off the shelf material. |
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Green Glue vs. Soundboard |
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Results: Using soundboard in a 2x4 delivers excellent high frequency performance, but only slight gains at lower frequencies. As a result, Green Glue substantially outperforms soundboard. |
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Green Glue vs. Factory Damped Drywall - Steel Studs |
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Results: Green Glue easily outperforms these 2 types of factory-damped drywall, especially at low frequencies. The thinner laminated products weigh less than an assembly of 2 layers of normal drywall with Green Glue. This extra weight combined with Green Glue’s excellent damping performance account for the difference. |
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Green Glue vs. Mass Loaded Vinyl |
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Results: Mass loaded vinyl can improve wall performance, but performance is much lower than Green Glue, especially at low frequencies. Green Glue is also lower in cost and much faster to apply than MLV. While hanging MLV limply is a common recommendation, using it as the center of asandwich performs better here. |