Floor assembly stc ratings. All tested assemblies will aciee a minimm of te maxxon.

Floor assembly stc ratings As required by IBC Sections 1206. ROCKWOOL 1 HOUR & 1. STC ratings are used in both floor and wall assemblies. com pblised reslt. Disclaimer: All Ratings Are Not Equal As with any underlayment sound testing number that a company gives you, each subfloor or floor assembly in your home. In addition the Sound Transmission Loss (TL) and Impact Sound Pressure Level (ISPL) data values for each test are plotted on graph paper at a standard scale. 4. Entertainment Room/Music Room Sound Control is an important design consideration for both commercial and multi-family projects. 4. ) Or search by the assembly number (UL design, or Gypsum Association file number) Then click on the Search button, and your results will be displayed below. 2 Fire-resistance Floor and Ceiling Ratin g: The fire-resistance-rated assembly shown in Figure 2 is based on a UL design. All tested assemblies will aciee a minimm of te maxxon. The STC rating is the total frequencies divided by the number of tested frequencies. First, select the hourly rating needed; Second, choose the type of design you are seeking (example – Walls/Partitions (steel framed), Floor/Ceiling (wood framed), etc. the floor needs to have a 1 hour separation so im adding sound batts and (2) layers 5/8 typ 'X' g. Dec 3, 2024 · Similar to IIC, STC testing involves testing 16 frequencies between 125 Hz and 4,000 Hz. Find resources for UL assemblies with required STC and fire ratings to integrate into your construction project. to have Sound Transmission Class (STC) ratings and Impact Insulation Class (IIC) ratings of 50 as shown. 7 Min. Because an STC/IIC of 50 provides only marginal sound control, the International Code Council (ICC), author of the IBC, now recommends that an “acceptable” level of performance for both STC and IIC is 55 (52 if field tested). Email: info@commercial-acoustics. L. Fire rating per GA WP 3380. Dec 18, 2023 · Above is another example of a factory wall. Laboratory and field tests to establish general approvals require an STC rating of 50 for walls and floors and an IIC rating of 50 for floors. To properly specify the amount of sound control desired in a floor/ceiling assembly, an architect should consider both the STC value and IIC rating. This is a UL U419 wall, so its STC rating is 50. w. 0 pcf INS735. This is where the Sound Transmission Class (STC) rating comes into play. When using this assembly, all details must be in accordance with the specifications contained in the UL BXUV GuideInfo. When floor-ceiling assemblies are used to plot our UL floor-ceiling assemblies and fire-rated floor assemblies, you can ensure the accuracy of your next project. Our high-quality underlayment products turn your floor’s IIC rating from mooo-diocre to marvelous. STC ratings in the 60’s or 70’s on Sound Control Underlayment product data sheets indicate that a ceiling assembly was used in the testing and the ratings noted should be viewed with skepticism. contributions of various products to an STC or IIC rating are shown in Table 18. Find resources and details for UL rated floor & ceiling systems with the required STC and fire ratings for your project. • with or without absorptive material • 1 layer of gypsum board on each side • Single Row W1a W1 with • 89 mm thick absorptive material(6) • 15. 2. Resilient channel can improve the STC rating of an assembly. Understanding the STC ratings for floors is essential when designing a space that requires soundproofing, such as an apartment building or a commercial space with multiple floors. Fire Ratings are assigned to entire floor/ceiling and wall assemblies – not to individual product components of those systems. 10). However, it is important to have some understanding of generally accepted acoustical terms when talking with architects, specifiers, designers Jun 15, 2024 · A basic wood structure floor/ceiling typically has an STC rating of 40-43, while a six-inch concrete sub-floor has a rating of 52-55. Jun 24, 2014 · Thanks to product technology improvements and more stringent regulations, the wood-frame multifamily industry is paying increasing attention to the acoustics of the floor/ceiling assembly. 3, this analysis procedure is based on comparisons of data from floor/ceiling assemblies having STC and IIC ratings as determined by the test procedures set forth in ASTM Feb 9, 2021 · details of tested assemblies, along with corresponding STC and IIC sound ratings for floor/ceiling assemblies. Find Floor & Ceiling Revit and CAD files for STC and fire rated UL assemblies. Identify layer details and available products. Staggered or double stud walls are higher rated than single stud walls. STC Ratings are: International Building Code (IBC) requires a minimum 50 STC/IIC (45 F-STC/F-IIC) in multifamily construction. In 1961, STC was introduced as the method for comparing various wall, ceiling, floor, door, and window assemblies. J2247-13-303-11-R0 Insulation Included Therefore, flooring materials do not significantly reduce the Sound Transmission Class (STC), which is a rating of airborne sound transmission loss of the floor/ceiling assembly or the partitions. 9 mm Type X gypsum DISCLAMER: The type of gypsum board mentioned in the construction description re˚ects the type of board used in the acoustic test reports. I have been informed that we are going to be required to achieve an STC-50 rating minimum on the floor assembly. The most common acoustic properties that determine these ratings include: Fire-Resistance Rating(2)(3) Typical Sound Transmission Loadbearing Non-Loadbearing Class(2)(4)(5) • Wood Studs W1 • 38 mm × 89 mm studs spaced 400 mm or 600 mm o. Wood-framed construction noise control products, stc ratings, iic ratings. Both IIC and STC ratings are dependent on the entire floor/ceiling assembly, including the floor covering, subfloor, ceiling, and any insulation. Catalog of STC and IIC Ratings for Wall and Floor/Ceiling Assemblies, California Dept. 1-hour interior partition wall assembly with resilient channels to provide an STC rating of 50 to 54 per GA WP 3242. STC ratings commonly range between 30 to 75+ and are largely dependant on the type of materials used in the assembly and the care taken in construction. The specified rating of 45 for field-tested assemblies (noted in Section The minimum Sound Transmission Class (STC) and Impact Insulation Class (IIC) ratings of 45/50 established by most codes for partition and floor assemblies often prove insufficient for many occupants. International Building Code (IBC) 1206. Phone: 888-815-9691. This is flattering for an underlayment’s advertisement but not explicit of its sound insulation performance. – Have achieved up to 4-hr. 3 of the 2021 IBC states the following: “Floor-ceiling assemblies between dwelling units and sleeping units or between a dwelling unit or sleeping unit and a public or service area within the structure shall have an impact insulation class rating of not less than 50 where tested in accordance with ASTM E492, or have a Normalized May 19, 2023 · Adding more insulation can have a profound effect on a wall assembly’s STC rating because it adds sound-absorbing material to the assembly. 0™, the industry’s most comprehensive resource for technical information and detailed architectural drawings of sound-rated assemblies for architects and contractors seeking to achieve required Sound Transmission Class (STC) ratings on their projects. 12 of the LABC. STC is highly dependant on the construction of the partition. 1. Wall Assemblies; Floor-Ceiling Assemblies; Fire Rating: 1 hours: System STC: 1 layer 1" Thick Levelrock® Brand 2500 Series Floor Underlayment; 3/4" Thick The U. ASTM Standards define the procedures and methodology for calculating STC (E901 for Laboratory Test Methods and E4132 for Rating Classifications). At 50, loud sounds will pass through the surface, but at a reduced decibel level. On the ceiling side, building materials such as the Gold Bond SoundBreak® XP® family of drywall products contribute to airborne sound attenuation. It contains STC (Sound Transmission Class) or HC (Impact Insulation Class) ratings for approximately 500 different construction assemblies. The higher the STC rating, the better the material prevents sound from passing through. Conference Room/Classroom 2. fire-resistance ratings with 19. Fire and STC ratings per GA FC 5012. Because lightweight concrete shrinks when it cures, a minimum of 1-1/2 in . fire-resistance ratings with 3/4 ULTRACODE® Core panels in steel-framed partition assemblies For more information see the following brochures: Floor Assembly Description: IIC Rating: STC Rating: Underlayment: Ceiling Assembly: Ceramic Tile on 6in Concrete Floor: 51: Floor Blokker: N: Ceramic Tile on 6in Concrete Floor with Ceiling Assembly: 53: Floor Blokker: Y: Luxury Vinyl Tile (LVT) on Wood Truss with Ceiling Assembly – Double Glue: 53: 62: Floor Blokker: Y: Engineered Hardwood Floor System (Fire Rating) UL Number USG Levelrock® Sound Mat USG Levelrock® USG Durock™ Underlayment (a) Insulation Framing Member Depth RC Deluxe® USG Sheetrock® Brand Firecode® C or X Gypsum Panels Floor Covering Sound Rating Test Number STC IIC Engineered Wood I-Joist (1 Hour) L570 L589 M502 M506 SAM-N12™ 1/8 in . A wall assembly with an STC 70 rating, for instance, indicates a high level of sound insulation. 3. 10 and 1206. Yerges, Lyle F. , Sound, Noise and Vibration Control, 1978. ROCKWOOL Comfortboard® 80 has recently been tested and approved for use in i-joist floor-ceiling assemblies that are required to meet a 60 minute and 90 minute fire rating. Address: 6301 N Florida Ave Tampa, FL 33604 Mar 23, 2017 · – Minimum STC Rating of 50 for wall and floor/ceiling assemblies separating dwelling units • Requirement is reduced to 45 if field tested in accordance with ASTM E90 – Minimum IIC rating of 50 for floor/ceiling assemblies separating dwelling units or between a dwelling unit and a public or service area • Requirement is reduced to 45 if Mar 21, 2021 · The delta IIC doesn’t depend on the floor assembly used during the manufacturer’s lab tests. SoundBook Gridstone Ceiling Attenuation Guide. 1-hour floor/ceiling assembly with floor trusses and lightweight concrete topping; STC rating of 61 to 62. STC is a standardized measure that rates how effectively a building partition, such as a wall or floor, can block airborne sound. Those lab tests generally use floor assemblies that are “under steroid”. A “strong” floor assembly means a better STC and IIC rating. In general, a higher STC rating blocks more noise from transmitting through a partition. For super sound control even in open beam, concrete slab, and exposed ceiling/mass timber floor systems. Consult listed ˛re references for speci˛c gypsum board type and brand to obtain listed performance. Option for wood structural panel sheathing. 5” Acoustics Assembly Number: ISS-00 STC: 43 OITC: 28 Report No. LIGHTWEIGHT CONCRETE The second choice for achieving a one hour fire rating in most UL Designs is to pour lightweight concrete directly to the wood subfloor . 2. 875″ has an STC rating of 41 and an IIC rating of 25. Floor Blokker – Sound Mat Specifications • Approved for all UL L500 Series • 1/4″ thick (6mm) EVA membrane with polyester scrim is the ideal composite floor underlayment for combined STC and IIC performance The installed weight of concrete masonry assemblies can be determined in accordance with CMU-TEC-002-23 (ref. This article will address multiple aspects that affect the sound performance of your Trus Joist® floor system and demonstrate how sound performance can be improved. based analysis approach for deriving STC and IIC ratings for assemblies constructed with wood and wood-based framing. Adding additional layers of drywall can improve the STC rating of an assembly. 3. STC Wall Rating Chart. In addition to the fire rating, these assemblies This is where the Sound Transmission Class (STC) rating comes into play. In the following 13 commercial wall systems, ROCKWOOL AFB® delivers Section 1206. Airborne sound insulation is reported as the Sound Transmission Class (STC). Acoustic ratings define a flooring system’s ability to block noise. I don't know what the as-drawn assembly would be rated at and whether we will need to add a 3/4" layer of gyp on top of the decking to achieve that rating. Topping Depth Encapsulated Sound Mat Floor Covering* Sound Rating Maxxon UL STC** IIC Test Number Fire Ratings 10" Yes Yes 5/8 Sound Transmission Class (STC) is a single-number metric used to measure the sound isolation performance of walls and flooring-ceiling assemblies in a laboratory. Even then, differences of 2 STC points can occur for the same assembly in the same laboratory. Apr 14, 2022 · For example, if you have a wall assembly with an STC rating of 33, you can’t add a later of MLV with an STC of 26 to result in a wall with an STC of 59, it would be more like 39. b. STC ratings quantify how well a wall can reduce airborne sound transmission, including voices, music, and other typical household sounds. c. For more than 1-hour floor/ceiling assembly with solid sawn floor joists, gypsum concrete topping, carpet, and resilient channels. Truss Depth per UL Insulation Resilient Channel Drywall Min. Feb 16, 2024 · STC Ratings: Wall Wisdom. What is a Good STC Rating? Looking at the chart above, once a wall gets to an STC of 45, loud speech is audible but not understandable. Specific STC ale of te tested assembl listed in te correspondin sond test. The same code states that floor/ceiling assemblies between dwelling units or Find Revit and CAD files for STC and fire rated UL assemblies. of Health Services, Office of Noise Control, Berkley, CA. –Wood-framed resilient partition systems with SAFB can achieve up to 59 STC with double-layer designs and up to 50 STC with single-layer designs –Have achieved up to 4-hr. Actual ratings may vary based on project variables. IIC Rating Calculator. 12 of the LABC The total STC rating isn't just a combination of it's parts, they are tested as a full assembly. Fill out the form below to begin your download. The higher the number, the better the floor/ceiling assembly. IIC/STC levels above are an approximation of sound reduction potential in a well designed, acoustically sound assembly. You would have to do more serious calculations to find the right answer, or test the blanket + window assembly, but essentially you just need to know these two things: The STC rating of a soundproofing product is the rating of the product alone. Class (STC) rating. SoundBook Roof-Ceiling Assemblies. Sound Control For A Purpose Just like many other characteristics of a structure that can be optimized for the benefit of its occupants, better Dec 6, 2024 · What Does an STC Rating of 50 Mean? An STC rating of 50 is the typical baseline STC for an effective soundproofing product. In the field, flanking noise, quality of material, Dec 7, 2023 · STC ratings are a standard way to rate the effectiveness of an assembly to attenuate airborne sound. Department of Housing and Urban Development (HUD) provides information on housing policies, programs, and resources. The Sound Transmission Class (STC) is a single-number rating of a material's or an assembly's ability to resist airborne sound transfer at the frequencies 125-4000 Hz. For example, a 5-ply CLT floor with a thickness of 6. 3 use 50 as the minimum STC rating for airborne and structural sound in multifamily homes. " * " indicates required fields 1-hour interior staggered stud partition wall assembly with STC 53. On the floor side, impact sounds are mostly mitigated by floor coverings and sound control mats. Heavier gauge studs are more rigid and may not provide the same sound ratings. Oct 22, 2021 · The mass of the structure is what contributes to the STC value. It should be expected that carpet and pad will significantly increase the overall performance of the sound control system. Sound ratings shown for steel-framed partitions apply to systems constructed with 25 gauge steel studs 24" o. Fire rating per UL L518; STC 58 and IIC 54 per National Evaluation Service Report NER-200. Resource Alert: Find IIC and STC elements of buildings, the fire-resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance-rated walls, ceiling and floor assemblies. Downloads. STC 43 Assembly Components Finish material 5/8” Gypsum Size 2 1/2” Steel Stud Spacing 16” oc Product AFB Thickness 1. As a start, you can check out some published documents like the Soundbook from National Gypsum or Owens Corning's sound design guide. UBC requirements for walls: STC rating of 50 (if tested in a laboratory) or 45 (if tested in the field*). Based on experience, the STC values are very close to those obtained for the assembly under current methods at 16 frequencies. It is intended as a quick screening tool to compare different wall or floor assemblies. It should also be a consideration for single family homes. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire-rated ceiling assembly. On top of that, the manufacture of the floor covering can use different materials. How Are These Ratings Obtained? Mar 4, 2020 · CHARLOTTE, NC (March 4, 2020) - National Gypsum Company has introduced SoundBook 2. (essentially RC 2601) The building inspector is telling me this assembly is unacceptable unless I can prove the stc is 50 some floor coverings and there are no sound tests when adding an additional layer of wood to the assembly . What is STC? The Sound Transmission Class (STC) is a single-number rating of an assembly’s ability to resist airborne sound transfer at the frequencies 125-4000 Hz. 2) for laboratory testing or ASTM E413, Standard Ideal for luxury developments and assemblies with exposed ceilings. Can help achieve sound ratings when used as a part of a STC/IIC-tested floor/ceiling assembly. Impact noise, tested on floor-ceiling systems only, is reported as the Impact Insulation Class (IIC). A floor/ceiling assembly achieves a STC of 50–55 with insulation between the trusses, 16mm Type X gypsum on the ceilings, and 16mm plywood covered with 38mm of lightweight concrete on the floor. When used with a typical assembly, our dovetail deck sound transmission ratings (STC) and sound impact ratings (IIC) give you design freedom like never before and provides superior sound performance – boasting a variety of floor assemblies and finishes that provide STC and IIC over 50. STC is calculated by taking the Transmission Loss (TL) values tested at 16 standard frequencies over the range of 125 Hz to 4000 Hz and plotted on a graph. Examples of exterior wall-floor intersection details for Type III construction are also provided. Insulation will noticeably improve the STC rating of an assembly. For improved sound reduction, lightweight concrete is used on the floor; 38mm thick standard lightweight concrete of 960–1440kgm –3 , and 20mm . Penetrations or openings in construction assemblies for piping; electrical devices; recessed cabinets; bathtubs; soffits; or heating, ventilating or exhaust ducts shall be sealed of a wall or floor assembly. STC rating per California Office of Noise Control Assembly 1. The STC rating system looks at the amount of noise mitigation provided by the assembly over a broad range of frequencies and a single number is calculated as its rating. com. 1 at 100% design load after one hour of fire exposure. Installing insulation within a wall or floor/ceiling cavity will improve the STC rating by about 4-6 dB, which is clearly noticeable. STC and IIC Ratings of Truss Joist Floor Assemblies Containing GreenFiber INS735 Insulation Truss Height 16" 12" STC 53 54 IIC 56 53 Basic construction outline 16" Truss Joists, 24" oc, with 1/2" RC and 5/8" Type X Drywall below, and 3/4" T&G plywood and 3/4" 3310 gypcrete above and 3/8" padded carpet on top. Homasote 440 SoundBarrier® may be used in fire-resistance-rated floor/ceiling when assembly Air-borne sound insulation for wall and floor-ceiling assemblies shall meet a sound transmission class (STC) rating of 45 when tested in accordance with ASTM E90. * The field test evaluates the dwelling's actual construction and includes all sound paths. While decibels (dB) are a measurement of how loud a noise is, sound transmission class measures the difference in decibels through a product — in other words, how much sound is The world's most comprehensive collection of sound-tested, fire-rated assemblies. %PDF-1. STC ratings are determined in a laboratory under controlled conditions. ASTM E 119 fire test on wall assembly Detail WS4-1. J2247-13-303-11-R0 Insulation Included includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. 1. The SoundBook® is the industry’s leading resource for technical details and sound-rated assembly drawings – all in one place. (3 mm) mat 3/4 in 1206. When the mass of a barrier is doubled, the isolation quality (or STC rating) increases by approximately 5 dB, which is clearly noticeable. 4 %âãÏÓ 934 0 obj /Linearized 1 /O 936 /H [ 973 718 ] /L 7142315 /E 89017 /N 175 /T 7123516 >> endobj xref 934 22 0000000016 00000 n 0000000791 00000 n 0000001691 00000 n 0000002150 00000 n 0000002233 00000 n 0000002324 00000 n 0000002409 00000 n 0000002508 00000 n 0000002568 00000 n 0000002694 00000 n 0000002754 00000 n 0000002874 00000 n 0000002934 00000 n 0000003050 00000 n Sep 28, 2022 · Provides high STC and IIC ratings when tested as part of a floor-ceiling assembly by an independent third-party acoustical laboratory using ASTM E90 test procedures. U. PDF. There are a number of factors that determine the Impact Insulation Class, or IIC, of your floor-ceiling assembly. S. Sound Ratings Gypsum board assemblies are laboratory tested to establish their sound attenuation characteristics. 11 of the LABC. Floor Joists EcoTouch ® QuietZone PINK FIBERGLAS® Acoustic Insulation Ceiling Gypsum Board 4 Wall & Floor Assembly Guide Construction Designs for Acoustical Control Adding Sound Absorbing Materials To Source and Receive Areas Another method of increasing the effective sound transmission loss between two rooms is to add sound Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire-rated ceiling assembly. The STC value Aug 29, 2016 · Section 1207 of the 2015 IBC states that wall and floor/ceiling assemblies separating dwelling units must meet a Sound Transmission Class (STC) rating of 50, or 45 for field tested assemblies (tested in accordance with ASTM E90). STC values are calculated by measuring Nov 13, 2023 · However, for environments like hospitals and schools, where quiet is essential, standards often recommend an STC rating of 60 or higher. Fire Resistance Inherently fire resistant throughout and provides fire resistance as part of fire resistance–rated wall and floor/ceiling assemblies. includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. A 6” solid concrete slab, for example, has an STC rating of about 52. Upgrade Your Floor’s IIC Rating With Solutions From Soundproof Cow. UBC requirements for floor/ceiling assemblies: STC ratings of 50 (if tested in a laboratory) or 45 (if tested in the field*). Cavities filled with 4. 5. , unless otherwise noted. Use 440 SoundBarrier in tested and approved fire rated floor and wall assemblies that carry the UL (Underwriter’s Laboratory) hourly ratings. Both these single-number ratings apply to the full assembly of building materials used to separate tenants, including floor/ceiling assemblies. The information has been accepted in principle by the relevant technical committee of the National Building Code and will be published as a table May 6, 2024 · Remember that floor-ceiling assemblies must perform on two levels. 5 HOUR FIRE RATED I-JOIST ASSEMBLY LISTINGS . Nov 7, 2016 · High STCs may also be achieved by using a vinyl barrier (such as mass loaded vinyl) in the wall to improve soundproofing performance, especially with metal stud wall assemblies. Sound Transmission Class (STC) A single-number rating that indicates the sound transmission loss of a partition or ceiling system between adjacent closed rooms. When STC tests are performed, the TMS 0302 requires the testing to be in accordance with ASTM E90, Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements (ref. These include the finish floor, the substrate, and the ceiling system below, in addition to your choice of sound mat or soundproofing underlayment. In the examples below (figures 6 and 7 in The SoundBook), going from an uninsulated wall to an insulated wall boosts the STC rating 8 points. 1-hour floor/ceiling assembly with I-joist floor framing, gypsum concrete topping, carpet, and resilient channels. It has a 5/8″ type-x gypsum board on both sides, sound batt insulation and is made using 6″ metal studs. 6. Increases IIC levels up to 17 points over wood frame, and up to 25 points over concrete. Fire rating per UL L502; STC 58 and IIC 73 per California Office of Noise Control Assembly 2. 2 and 1206. Things like stud spacing will change the rating. As such, components are typically added to mass timber assemblies to improve their acoustics. Increases STC rating 6-15 points over bare wood frame system. Metal stud walls perform better than wood stud walls. Products Applications Design Jul 1, 2021 · Can someone point me were to find a stc rating of 50 for existing wood floor assembly consisting of 3/4" t&g plywood and 2x10's. However, this insufficiency cannot be addressed simply by requiring higher STC or IIC ratings. We won’t get into the science behind that here, but just keep this in mind when considering wall and floor soundproofing using sound membranes. An example calculation is given in Table 18. 5. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. An introduction to key terms, strategies and noise attenuation assemblies 1. The result is a numerical rating somewhere between 25 and 60+. These ratings can be used to compare the acoustic performance of different floor-ceiling assemblies including underlayments. FIRE RESISTANCE RATING DESIGN NUMBERS Description STC IIC Sections Test # 2" Topping Slab Precast Concrete 14" Tee: 54: 24: AT001010: 4" Concrete Slab 1/2" Plywood 2" KINETICS RIM L-2-12 2" Topping Slab Bare mass timber floor/ceiling or wall assemblies are seldom used, in large part due to inadequate acoustical performance. Provides both STC and IIC ratings above 60 in specific floor-ceiling assemblies, making it a best-in-class solution by reducing sound two times more than the code requires. For example, a concrete slab floor might have an STC rating of Apr 4, 2023 · Critical Floor Underlayment Properties. Corporate Brochure; 1" Oak Hardwood Floor 3" Subfloor : FIIC 15: AT001033: Single-number rating that indicates the amount of impact noise isolation provided by a floor/ceiling assembly. SoundBook Floor-Ceiling SoundBook Floor-Ceiling Assemblies. 1 mm (3/4 ) ULTRACODE® Core panels in steel-framed partition assemblies For more information see the following brochures: Moisture-Resistant Assemblies Aesthetic Assemblies SA932 SA933 SHEETROCK Gypsum Panels Data Sheet EWB-0W15 CGC Area Separation Walls –Achieve up to 60 STC STC values are further improved by using Johns Manville sound control batts to increase sound absorption within the floor/ceiling assembly. 3, this analysis procedure is based on comparisons of data from floor/ceiling assemblies having STC and IIC ratings as determined by the test procedures set forth in ASTM Oct 10, 2024 · If the window has an STC rating of 30, the final STC with the addition of the blanket is not 65. Address: 6301 N Florida Ave Tampa, FL 33604 The Sound Transmission Class (STC) is a single-number rating of a material's or an assembly's ability to resist airborne sound transfer at the frequencies 125-4000 Hz. Sep 18, 2015 · Sound transmission through floor/ceiling assemblies is essential when designing for multi-family housing, hotels, and mixed-use occupancy. Sound transmission class (STC) and Impact insulation class results are given as well as the following detail data at ⅓ octave band center frequency ranging from 125 Hz to 4000 Hz: TL / STC: Floor Layer Estimated Transmission Loss May 1, 2000 · As a result of this project and the related acoustics project, a table with STC ratings for more than 600 floor assemblies and fire-resistance ratings for more than 150 floor assemblies was drafted. Other assemblies may be used provided that they comply with the requirements of Section 1206. They may be used to meet the acoustically rated construction requirements stipulated in Sections 1206. The QuietWalk underlayment provides very high ratings such as IIC of 71 and STC 66 as of mid 2018. zgsny kxmoqm flie ennyff ubnj prkwek vwxhvl gnlusru rzbzr ueqa mnbdw mjy wli ycusaw vgttjl