11/19/2022 0 Comments Qt sound control underlaymentAcousticians often look for underlayment that can provide IIC 50 or greater when tested with a finish floor covering over a 6″ bare concrete slab (no ceiling). Advertised ratings for these materials are sometimes achieved with insulated & isolated ceiling assemblies which contribute greatly to the performance. Note that IIC values are always for an entire assembly tested which includes the underlayment as one component. This material is installed underneath a hard surface finish floor. This method provides the Impact Insulation Class (IIC) rating on floor ceiling assemblies in laboratory conditions. Floor underlayment products are tested for impact sound isolation performance according to ASTM E492. Resilient Floor Underlayment – Reduces the loudness of footsteps on the floor above for occupants in the rooms below. Products: A mass-loaded, lead- and halogen-free elastomeric acoustic insulation noise barrier Products: Sound Quality® Barrier is available in rolls 54″ wide by 30′ or 60′ long Products: Various Mass Loaded Vinyl Barrier products in sheets and panels. Mass Loaded Vinyl Barrier (MLV) – Sheets of limp mass that can be applied in a variety of ways.ĭB Sound Control Solutions – Mount Airy, NC – Products: QuietCoat 118 sprayable, viscoelastic polymer Visco-Elastic Damping Compound – Wet product applied onsite between two pieces of gypsum board, providing additional damping within the wall surface. Products: RC-1 and Serenity RC Resilient Sound Channel Products: RC Deluxe Resilient Channel (RCSD) Use ONLY manufacturers recommended screw length. WARNING: using screws that are too long can “short circuit” the channel. Resilient channels – A cost-effective way to provide isolation between wall board and studs. Products: GenieClip RST Sound Isolation Clip Resilient Isolation clips – High performance wall and ceiling isolation solution, providing easy snap-in to steel hat channel. Products: R-19 fiberglass insulation batt Thermafiber (Owens Corning) – Wabash, Indiana – Products: ROXUL AFB® is a lightweight, semi-rigid batt insulation Products: Gold Bond SoundBreak XP 5/8” Gypsum BoardĪcoustical insulation – Higher density insulation products proven to reduce cavity resonance in stud walls. National Gypsum – Charlotte, North Carolina – Products: EZ-SNAP, Quietrock 510, Quietrock 530 boardĬertainTeed Saint-Gobain – Malvern, Pennsylvania – Laminated Gypsum Panels – Typically consists of a layer of viscoelastic damping polymer sandwiched between two pieces of gypsum board. Products: Dow Corning 795 Silicone Building Sealant USG – Libertyville, IL – Products: USG Sheetrock Brand Acoustical Sealant Products: SC175 Draft & Acoustical Sound Sealant OSI (Henkel Corporation) – Rocky Hill, CT – Products: 3M™ Smoke and Sound Sealant SS100 An expert consultant can be found here at the National Council of Acoustical Consultants directory: For all products listed below, you must follow the manufacturer’s instructions in order to get the intended result.Īcoustical Caulks & Sealants – Useful for sealing small seams, holes, and penetrations. For this reason, we strongly recommend seeking expert counsel for your noise control engineering project. This means that the weakest path for sound transmission will often limit the overall sound insulation from one room to another. Sound transmission loss is very much a “weakest link” situation. There are often many options for improving STC performance, but sometimes a specific problem requires a specific solution. Ask for the lab report to validate any manufacturer’s claim. There is no such thing as “sound proof.” Noise control products are lab tested to determine performance according to ASTM E90 (sound transmission loss (TL)) and ASTM E413 (STC). Performance improvements are incremental and not absolute. These materials are designed to increase the Sound Transmission Class (STC) rating of an assembly or prevent unwanted leakage that the limits the performance of an existing installation. The following is a list of sound insulation (sound proofing) products and treatment manufacturers.
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