Stc rating chart pdf. JM Mineral Wool STC Ratings.

Stc rating chart pdf Department of Housing and Urban Development offers resources and information on housing programs, policies, and assistance for individuals and communities. STC 33-38 Single Seal Set 38 - Pemko. Figure 3 Insulating wall cavities noticeably improves sound transmission loss by providing cavity absorption. Pella. 1/4"La 38 38 1/2" (12. Architectural Glass Projects. STC . 250 Series Sliding Window. To determine the specific STC ratings of glass and a window or door assembly, the following ASTM standards can be used: • ASTM E 90: Standard Test Method for Laboratory Measurement of Airborne Sound Transmission the STC value, the better a construction reduces the transmission of sound. STCratings have been determined from TL data Tested under ASTM E90, panels caulked in place with wooden stops and glazing putty. Where to Buy | Find A Contractor | Become A Certified Contractor | My Favorites (0) | Contact Us | 1-800-426-4261; Windows & Doors; Inspiration; Parts & support; Technical documents; For professionals; Single 2x4 wood studs, 24” OC - STC 51 Staggered 2x4 wood studs, 8” OC - STC 55 Staggered 2x4 wood studs, 8” OC - STC 60 QuietRock® on one side, Type X on the other QuietRock® on one side Type X on the other QuietRock® on one side 2 layers 5/8” Type X on the other ES Type X , 5/8”sound damping gypsum panel without paper or metal in How Is a Wall’s STC Rating Calculated? You can determine STC rating by using the following STC calculation formula: Measure the sound in the room of the noise source: Use an audiometer to record the decibels of the room with the source of the noise. 1/8" 37 37 1/2" (12. Measure the sound in the adjacent room: Then, go to the adjacent room and take a second recording of the number STC 55 STC 55 STC 55 Bedroom STC 55 Single 2" x 4" (51 mm x 102 mm) wood studs 24 OC (610 mm), resilient channels: double layer 1/ 2" (13 mm) Type X gypsum board one side, single layer other side; one thickness 35/ 8" (92 mm) JM Formaldehyde-free thermal/acoustical fiber glass batts. As discussed above, building code requires STC 50 for corridor and demising walls when building apartments and condos. STC rating chart . The following examples of different steel stud wall systems demonstrate improved STC values by the inclusion of Johns Manville sound control insulation between metal studs, 24" (610 mm) on This document provides sound transmission class (STC) ratings for various glass and wall constructions. Comment. Elevated Temperature . Its original intent Tested under ASTM E90, panels caulked in place with wooden stops and glazing putty. Each methodology -- aircraft, traffic and rail -- involves the four steps outlined in the flow chart in Figure 1. 24 mm) 1/8" 0. STC/OITC: G3302. 3). 12 of the LABC. 1/8" 36 36 3/8" (10. Our wall assembly was comprised of 5/8” OSB (exterior), one layer of type X gypsum wallboard (interior), 2” x 4” studs Performance documents for altitude limits, NFRC ratings, center of glass, joining window load table, air infiltration, and more. Sound Control Specifications [DOC] SELECT ALL DOWNLOAD SELECTED. Spec Sheets (2)Zip file. 15/8" (41 mm) Steel Studs or smoke developed ratings are not intended to reflect hazards presented by these or any other materials under actual fire The SoundBook® is the industry’s leading resource for technical details and sound-rated assembly drawings – all in one place. Duct Board. The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. In general, a higher STC rating blocks more noise from transmitting Fire Rating: 1 hour Sound Transmission Class (STC): 45 Ask your building supply retailer about the benefits of using resilient channels for your project. ROCKWOOL 3 ASTM E 90 Airborne Sound Transmission Loss Tested (STC) is a single-number rating of an assembly’s ability to resist airborne sound transfer at the frequencies 125-4000 Hz. Transmission The passage of sound waves from its source, through a vibrating medium, and to a listener. 03. 0 This guide provides an introductory overview of glass concepts and terminology, plus -114• glass) with an STC rating of 34. STC 46-47 Vert-Rod Pairs Seal STC Capability Chart. Mercyhealth Hospital & Physician Clinic. Decorative glass with caming. STC. [3] The STC provides a standardized way to compare products such as doors and windows made by competing manufacturers. The frequencies used in STC ratings correlate in a general way with subjective impressions of sound STC OITC Test Date Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. The complete Harvey Window + Door professional's Mineral Wool Product Comparison Chart Mineral Wool 2. 060 P. Box 2048 Approved By: PP&S Panel Version. 5 %¡³Å× 1 0 obj >>>/Type/Catalog/Metadata 59 0 R >> endobj 9 0 obj >/Properties >/XObject >/ExtGState >/ProcSet[/PDF/Text/ImageC/ImageI]/Font >>>/Thumb 19 performance, the selection of a floor/ceiling system attaining a minimum 60 STC and IIC is recommended. Nevertheless, the STC and IIC rating systems are advantageous from a building code / regulatory perspective because they provide a single-number rating that roughly correlates with subjective impressions of airborne sound transmission from sources such as human voices, radio and television, and structure-borne sound transmission loss (STC). In general, a higher STC rating blocks more noise from transmitting through a partition. 250: 7/8" 3. The diagram below represents airborne (conversation) sound passing directly through a Referring to the typical STC 30 rating chart below, STC is determined by testing sound transmission decibel loss at 16 standard frequencies from STAGGERED STUD WALL PARTITION STC Ratings of wall assemblies INSULATED with CelBAR Spray. 04/12/2024 Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. STC 42-49 Vert-Rod Pairs Seal Set 13 - Pemko. Basement Wall . The Maxxon floor underlayments and Acousti-Mat® are but single components of an effective sound control system. 8” Concrete Slab STC 53 IIC 55 Not Applicable 6” Concrete Slab with Drop-Ceiling STC 62 IIC 70 Not Applicable Notes 1) ASTM E648 - Critical Radiant Flux (Radiant Panel): Passes Requirements for Class I per International Building Code (IBC) 2018 & NFPA 101 Life Safety Code 2) ASTM E662 - Smoke Density: 450 is the limit established by many These sound transmission loss tests were conducted in accordance with ASTM E 90. STC Rating Chart Determining STC Rating of Wall, Drywall, and Windows STC Rating of Drywall. Batts. FSC* NAUF* Gasket Seal System : Maximum Door Size** Lite size : GlassType / Stop . N/A. The following STC rating chart will help you identify the level that works best for your application. STC 40-47 Embossed Singles Seal Set 6 - Pemko. In the U. Consult factory for details. Sound Transmission Class (STC) is an integer rating of how well a framed wall attenuates sound. 278. STC Rating of Fiberglass vs Rockwool (Which one insulates the best) Note: Here I will be going over which type of insulation material works best when put inside a typical interior wall with ½” of drywall on either side, which has an STC rating of 34 on its own, and how it increases this rating. Determine Target STCs. This might GENERIC STC and OITC RATINGS Not to be used for design or specification purposes Glass Product Type and Thickness STC Rating OITC Rating Monolithic 3/ 32 ” 26 - 1/ 8 ” 29 - ¼” 31 29 ½” 36 33 Sealed Insulating Glass Units 1/ 8 ” glass + ¼” air + 1/ 8 ” glass 28 26 ¼” glass + ½” air + ¼” glass 35 28 (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 . fire-resistance ratings for veneer and conventional systems –Can minimize or eliminate irregularities such as ridging, boarding and nail pops associated with standard drywall STC ratings of individual partition components cannot be added together to arrive at an assembly STC rating. STC Rating Chart. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. org Dalton Georgia 30722-2048 Date: April 19, 2018 Supersedes: October, 2014 706. 5 %âãÏÓ 18 0 obj > endobj 28 0 obj >/Filter/FlateDecode/ID[361E5D78FA1E1C9740E50162A9C38D21>41C7560A4EEF9C4C87B5D6977B866187>]/Index[18 21]/Info 17 0 R These data have been retained in this Selector to serve as a guide to the designer. DUAL PANE INSULATING ACOUSTICAL DATATRIPLE PANE INSULATING ACOUSTICAL DATA Below are the STC ratings of various wall assemblies, each presented to help illustrate concepts, improvements and rules of thumb. Technical Glass Guide Update 6/15/21 – Version 3. Air Sealant. Revision: 1. Find technical specifications, installation instructions, construction specifications (CSI), CAD/BIM files and parts manuals for all Marvin products. Of course, the rating is determined as an average based on the different frequencies between 125 Hz to 4000 Hz. Duct Wrap . Y : A . Wall Assembly Acoustical Testing Results. components. 39 M) Adobe PDF. Performance Ratings (3)Zip file. 1/8" 35 35 3/8" (9. 2' x 4' beam traveling at 50 feet per second, followed by hurricane-force transmission loss (STC). STC 41 STC 51 STC 56 STC 59 STC 48 STC 55 • SINGLE LAYER 5/8” GYPSUM BOARD EACH SIDE • 5-1/2” CELBAR SPRAY NGC 2008023 • SINGLE LAYER 5/8” GYPSUM BOARD EACH SIDE • NO INSULATION NGC STC RANGE 25 - 35 Roof Membranes Unless otherwise indicated, all tests have been completed to be membrane agnostic. Impact Insulation Class (IIC) is a single number rating of how Acoustical Rating: With Cork 6mm STC IIC STC IIC Concrete Slab 8” 58 60 56 62 Concrete Slab 6” 53 58 54 59 Concrete Slab 4” w/Steel Deck 60 64 60 65 Wood Joist Construction 54 59 54 60 With Cork 12 mm Ceramic Finish Wood Finish IIC IIC Floor ceiling assembly mineral cores have an STC rating of 33 to 34. 1. Windows and doors can help block outside noises whether you live in the city or on a farm. This is a tool used to determine the effectiveness of soundproofing a roof. Description. Crystal Lake, IL. STC 33-41 Singles Seal Set 1 - Pemko. V3000 Series Windows. Test results and benchmark values are presented below. 0 Sell Sheet NAIMA Fiberglass and Mineral Wool Insulation as an Alternative to Sprinkler System STC Rating Documents. Board. In sum, STC tells you how much a ceiling or wall might stop sound. Pella 2025 Architectural Design Manual Division 08 Openings Windows and Doors www. Fire-resistant with melting point up to 2,000˚ F (1,093˚ C). The STC rating has been in existence for many years and is based on speech sounds. 5” Acoustics Assembly Number: ISS-02 STC: 43 OITC: 28 Report No. STC 43 Assembly Components Finish material 5/8” Gypsum Size 3 5/8” Steel Stud Spacing 16” oc Product AFB Thickness 3. 1206. O. • Doubling the mass of a wall assembly does not double the STC rating. STC 33-41 Singles Seal Set 41 - Pemko. It lists the construction details and thickness of single laminated glass, laminated insulating glass, airspaced glass, monolithic glass, Style Line® Series | V250 Windows STC Rating - MILGARD H4990. 05-113-11-R1 Rainfall: G3302. Rolls. Sound Transmission Class (STC) measured in decibels, is an average value associated with a material’s effectiveness in reducing sound. The four-point increase in STC rating is the resuH of dampilg Ratings Shown are STC/IIC With the expanded use of Hollow Core construction, additional testing is required to ensure efficacy of parallel systems with their concrete slab or composite ribbed slab counterparts. Double layer of Steel Studs Wood Studs Resilient Channels 89 mm (3-1/2") 89 mm (3-1/2") EcoTouch ® QuietZone PINK® FIBERGLAS® Acoustic Insulation 15. 9 mm (5/8") Gypsum Acoustical Characteristics of Carpet P. 404 / 5502 : 30 . 5 lb/cf Phone: 888-815-9691. STC is highly dependant on the construction of the partition. com. Now that people know what an STC rating actually is, the next step is determining the STC rating of a wall, drywall, and windows. ^Fire rated doors require glass that meets fire rating; must be caulked STC 35 NRC. S. 4' x 10' Variations could affect the STC rating of the opening. Specific products for these building materials will vary, so talk to the manufacturer to get the exact STC rating before purchasing. Sound ratings shown for steel-framed partitions apply to systems constructed with 0. 9375mm 32: 26 Hurricane Shield Series Phone: 888-815-9691. It’s an integer rating that tells us to what degree a building partition (such as a wall or ceiling) reduces the force of airborne sound. STC Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. Blown-in Insulation. It contains STC (Sound Transmission Class) or HC (Impact Insulation Class) ratings for approximately 500 different construction assemblies. 1/8" 35 35 When discrepancies appear among laboratory plenums and suspended ceilings STC ratings for essentially similar assemblies, and unbaffled ducts when the discrepancies are above and below window to window (outdoors) STC 50, field testing may be required to common heating units assure that the building complies with the transoms and air grilles STC is a rating of how well a building partition attenuates airborne sound. Address: 6301 N Florida Ave Tampa, FL 33604 STC: OITC: Rw: 1/4″ Structural Charts. The water source can be from pressure-driven vapor diffusion, moisture from air leakage through finished wall and ceiling coverings, or STC (ASTM E 90) NRC (ASTM C 423) Compressive Strength Tensile Strength . While STCs are a good one-number approximation for the soundproofing capacity of a wall, they are limited in a few ways: Based on the Delta IIC Rating Chart above, the most effective floor underlayments are made from crumbled SITE EXTERIOR NOISE - OITC/STC of façade (H,OP,R) • Issue: Outdoor Indoor Transmission Class criteria are more appropriate than STC for façade evaluation, but test data are sparse • Resolution: 2010 Guidelines listed STC, 2014 Guidelines listed OITC, 2018 will list both providing guidance on how to select. 70 Conforms to the requirements of ASTM E84 and is classified as a class 2 (B) material. The first column is the rating of the door panel only; tested in a static Acoustical Guide – Determining Minimum STC Rating RAL TL 85 and TL 95 sound transmission loss tests are in accordance with ASTM E90. Wall Assemblies. An STC rating is a quick reference number for the entire frequency band, and primarily measures interior noises at levels most common to human speech (500Hz-2,000Hz). The STC rating figures reflect the decibel reduction in noise that a partition can provide. 5 mm) 1/4" 0. Recommended STC Ratings on Corridor & Demising Walls. Pipe and Tank . 10 of the LABC) is to be used for acceptance of individual jobs only. “Airborne sound” passes –Offer 2-hr. V400 | Tuscany® Series Acoustical Ratings Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 1/4" (7. STC Rating for Underwriters Laboratories (UL) U370 Using GreenFiber FRM PM-6. • Implications: The STC ratings for windows and glass can range from 18 to 65, depending on the type and thickness of the glass. 030 P. 250 7/8" 3. STC Rating: What can be heard at this level: 25: Soft speech can be heard and understood: 30: NormaLspeech can be heard and understood: 35: Loud speech can be heard and understood: 40: Loud speech can be heard but not understood: 45: %PDF-1. 9 m (5/8 How is the STC Rating Determined? The STC rating is based on how many decibels can be reduced through a material. NWTL140828-03 STC 40 Assembly Components Finish material 1/ Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 1/4" (7. 53 mm) 1/4" 0. 4 %âãÏÓ 434 0 obj > endobj xref 434 49 0000000016 00000 n 0000002439 00000 n 0000002601 00000 n 0000005356 00000 n 0000005459 00000 n 0000005636 00000 n 0000005827 00000 n 0000005941 00000 n 0000006065 00000 n 0000008319 00000 n 0000010961 00000 n 0000013642 00000 n 0000016276 00000 n 0000018877 00000 n For further help, check out the STC rating chart below. 9 mm (5/8") Gypsum Board Single Layer of 5. 1 mm) 1/4" 0. fire-resistance ratings; comply with fire-resistance requirements under evaluation reports of UL U336 –Weigh at least 50% less than masonry walls components. OITC. B. STC 42 -49 Pairs Seal Set 4 - Pemko. Assemblies will be organized by STC value ranging from an STC of 40 to an STC of 57. Sound Control Sell Sheet [PDF] SELECT ALL DOWNLOAD SELECTED. Fire Rating . Fiberglass –Veneer plaster partitions achieve up to 63 STC in steel-framed resilient systems and up to 52 STC in wood-framed resilient systems –Have achieved 1- to 4-hr. Single Hung Windows. Our spec sheets offer a detailed look at individual products, and include information on product features, options, and performance data. Making the doors operable, with a good sound seal around the perimeter of the frame and an automatic door bottom, the STC rating will be reduced by one (1) or two (2) decibel chart “Random Incidence Sound Absorption Coefficients, in 1/3 Octave Band”, pg. These • • • • •Sound transmission Coefficient (STC) rating During general full scale wall testing, cellulose effectively reduces the airborne sound from room to room. JM Mineral Wool STC Ratings. STC 46-47 Pairs Seal Set 3 - Pemko. 3176 Page 4 of 9 Test Series A - 2: Carpet was placed over a 40 ounce per square yard hair cushion on the concrete floor to determine. (3 mm) mat 3/4 STC Rating Chart. This added benefit of Description Cellulose STC 2x4 stud 16" OC,faced on both sides 31/2" 41 with 1/2" gypsum wall board 2x6 stud 16" OC,faced on both sides 51/2" 47 with %PDF-1. Family. The Sound Transmission Class (STC) rating was calculated in accordance with ASTM E 413. 175mm: 7. • An empty framed wall (steel studs and a layer of gypsum wallboard on each side) has an STC of approximately 35 The STC or sound transmission class is a single number method of rating how well wall partitions reduce sound transmission. 125 x 47. Fire-resistant with melting Use this chart to find the right product. V. The higher the value, ENERGY STAR® zones and U-Factor, SHGc, and VT values, along with ratings for Air Infiltration, Water Resistance, DP and Structural Test Pressure. NWTL140828-03 STC 40 Assembly Components Finish material 1/ STC Ratings & Steel Stud Framed Walls . Continuous Insulation for Rain-Screen Cladding Systems - Metal Panel STC Ratings (2)Zip file. All files. Testing done with full scale assemblies. Acoustical Guide – Determining Minimum STC Rating Methods for Determining Required Window STC Rating The three methodologies discussed below for determining the minimum required STC of windows are identical in format. 5 mm (25 gauge) steel studs 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. Bookmarks are also included in this PDF document and are available as an additional navigation option. Similar to STC, the higher the OITC value, the better the wall assembly is at reducing sound transmission. In the USA, it is widely used to rate interior partitions, ceilings/floors, doors, windows and exterior wall configurations. Cross Section Drawings (1)Zip file. , it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. JM MINERAL WOOL INSULATION PRODUCT COMPARISON transmission, an OITC rating is designed to account for sound transmission from typical outdoor sounds which consists of frequencies lower than an STC rating. Of course, the higher the STC rating, the better. 175mm 3. Call us with any questions! STC & IIC RATINGS FOR FC-214 FLOOR COVERING STC IIC TEST NUMBER Carpet & Pad 48 54 NRC 1059 & 1060 Vinyl 47 35 NRC 1063 & 1064 Lightweight Concrete, Carpet & Pad 56 72 NRC 1053 & 1054 Lightweight Concrete and Vinyl 56 48 NRC 1051 & 1052 Gypcrete, Carpet & Pad® 52 63 NRC 1076 & 1077 Gypcrete® 53 43 NRC 1085 & 1086 STC & IIC RATINGS FOR Find resources and details for UL rated wall systems with the required STC and fire ratings for your project. Common IIC Ratings. and 3-hr. Third-party tested (1. Open-cell SPF will also absorb and hold liquid water. However, when building hotels, the STC of 55 for demising walls and STC 50 for corridor walls isn’t a building code requirement – this is what we call a “brand STC Lab Test Results STC Test Window - STC Test Result Range: Tested at various air spacing between the test window and a Soundproof Window Dual Pane 1/8" over 1/8" 26 45 53 40 50 60 70 T ransmission Loss (Db) SOUNDPROOF WINDOWS®, Inc. Professional's Guide. Download. The estimated ratings are based on laboratory test results The chart below indicates the STC rating of specially made acoustic doors using various applications of gasketing. Outdoor-Indoor Transmission Class (OITC) Recently, a new single-number rating has By definition, a vapor retarder has a Perm rating of 1. Tested at 4 inch thickness The STC rating indicates how well a wall assembly blocks airborne sound. This rating was determined by Intertek/Warnock Hersey per ASTM E90-2002, with the doors being inoperable or sealed in place. STC: What can be heard at this level: 25: Soft speech can be heard and understood: 30: Normal speech can be heard and understood: 35: Loud speech can be heard and understood: 40: Ratings achieved at that size are representative of all sizes of the same configuration. frequencies. VT Door Types . 31. Deco. NR : Y . Rev. Insulation Type STC. Products Products > Pipe Insulation. 00 Revised: April 19, 2018 carpet-rug. 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. Based on experience, the STC values are very close to those obtained for the assembly under current methods at 16 frequencies. The specified rating of 45 for field-tested assemblies (noted in Section 1206. Interior Walls (Steel Studs – 24” On Centre) 3" Safe'n'Sound®, 5/8” drywall (type x): Fire Rating: 1 hour Sound Transmission Class (STC): 52 Interior Ceilings/Floors STC 32 Single Seal Set 32 - Pemko. Explore noise reducing windows and doors from Pella. Installation Instructions (5)Zip file Additional Technical Resources (3)Zip file. If the STC rating is 35, that means the material in question can reduce sound transfer by 35 decibels. 9 mm) 1/4" 0. A commonly accepted minimum STC value for a floor/ceiling assembly is 50, but local requirements should be confirmed. 0. RAL-TL06-199 The acoustical STC ratings by up to 10. STC OITC 80 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 STC RATINGS EXPLAINED. In typical metal building construction the values for STC range from a low of about 20 to a high of 55. 02 Class (STC) side to the other. Generally, the higher the STC rating, the better the floor assembly blocks noise from transmission through a wall or floor assembly. Systems attaining ratings less than 55 STC and IIC provide only marginal acoustical performance. The U. Address: 6301 N Florida Ave Tampa, FL 33604 by the IIC rating. Email: info@commercial-acoustics. 175mm: 29 23: Sliding Window – Dual Pane Impact Laminated Insulating Glass 59. The F-IIC and F-STC is conducted in the field where flanking is not as STC Rating OITC Overall Glazing Rating Thickness Exterior ; Glass Thickness Interior Glass Thickness Sliding Window – Dual-Pane Standard Insulating Glass; 59. 15-113-11-R0 STC 31 26 STC 25 to 35 RWT31 RWT36 RWT30 Mineral Wool STC S A CT SAT Mineral Wool STC Typical Sound Barrier Assemblies STC 42: Single layer of ½” (13 mm) gypsum drywall on each side of 2 ½” (64 mm) steel stud with 2” (51 mm) MinWool SAFB STC 43: Single layer of 5⁄8”(16 mm) gypsum drywall on each side of 2 ½” (64 mm) steel stud with 2” (51 mm) MinWool SAFB The following examples of different steel stud wall systems demonstrate improved STC values by the inclusion of Johns Manville sound control insulation between metal studs, 24" (610 mm) on center. Supporting documents for this product: Test Reports: %PDF-1. 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. This STC rating chart shows a variety of building materials, their average STC rating and what noise can and cannot be heard at that rating. Min/Max Sizes (2)Zip STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. 0 or less. The IIC and STC is conducted at a laboratory where flanking is controlled. com WHAT IS STC? STC stands for Sound Transmission Class. 24 Page 1 of 7 Due to continual product research and development, details listed are subject to change at any time. certifications, ratings, and testing include: • Miami-Dade Notice of Acceptance • Florida Product Approval • ENERGY STAR® • National Fenestration Rating Council (NFRC) • STC (Sound Transmission Class) WinGuard® products can withstand repeated impact from a 9-lb. Configuration. 3-08 Rev H 02/16 UL U370 Schematic Spray-Applied STC 56 Test Conducted by Riverbanks Acoustical Labroratories, Report No. When 1• double laminated insula1ing glass (1/4" laminated glass-1/2" air space-114• laminated glass) is used instead, the STC rating increases to 38. 1 A reference guide for acoustical assemblies and STC ratings in insulation systems, commercial roofing, and engineered products. Figure 3 Insulating wall cavities noticeably improves sound transmission loss by providingbetween one wall surface and the other cavity absorption. However, soundproof windows can have an STC rating of 48-54 or higher, providing significantly better sound STC RATING CHART: STC: What can be heard at this level: 25: Soft speech can heard and understood: 30: Normal speech can heard and understood: 35: Loud speech can heard and understood: 40: Loud speech can heard, but not understood: 45: The threshold at which privacy begins: 50: Loud sound can be heard, but are very faint: 60+ At this level, good An IIC and STC rating will generally be 5 points higher than a F-IIC and F-STC rating. STC 52 Single 2" x 4" (51 mm x 102 mm) wood studs 24" OC (610 The overall STC rating is an average of the STC ratings measured between 125 Hz and 4,000 Hz. Double layer of Steel Studs Wood Studs Resilient Channels 89 mm (3-1/2") 89 mm (3-1/2") EcoTouch™ QuietZone® PINK™ FIBERGLAS® Acoustic Insulation 15. quc sotl bmrq pqpf xecil empa cctozia xkfp xjac hhtdyh xcra dlka kzyavfx uguyqslm dcxfr