Laminated glass stc rating calculator free. 3 software and represents center of glass performance data.
Laminated glass stc rating calculator free. FLOAT GLASS The STC rating of a single.
- Laminated glass stc rating calculator free 52mm laminated glass is 39. See more Welcome to our interactive glass selector tool where you can find glass that meets your performance requirements. 2 safety and security mega-trend: need for reducing risk 1. Laminated glass is also available in clear, bronze, gray, or green with tinted interlayers. • Laminated glass can be drilled, cut and otherwise modified in the shop or field, increasing fabrication Sign in with your username and password. Send e-mail to Technical Support. If thicker glass material is used, the rating can go up to 35. 3. The balance of the sound transmission tests are not yet complete; the theoretical numbers listed are based on the glass package and the style of window which are the determining factors of . LoĒ Color Simulator. How to Calculate the Glass STC - Free download as PDF File (. Capabilities [+] [-] Sound Control Capabilities our on-line glass performance calculator. This document provides sound transmission class (STC) ratings for various glass and wall constructions. Although they are technically considered double-pane, laminated soundproof windows still utilize three glazings. When planning glass wall systems, here’s a For example, if an 80 dB sound on one side of a wall/floor/ceiling is reduced to 50 dB on the other side, that partition is said to have a STC of 30 dB. Commonly called acoustic laminated insulated glass, the windows provide an STC of 39 to 54 or greater. Example:6mm clear tempered glass The performance calculator simplifies the creation of glass make-ups through a point-and-click, web-based interface. VAT Number GB 544 939 Laminated glass is a proven, effective solution for acoustical protection. This patented, tri-layer system targets sounds in the 1000–4000 Hz range (an area sensitive in human hearing) for superior sound damping in laminated safety glass. ÷W%lÏaØøþê««ÿxykƒ„p¹ûp . Each increase of 10 in an STC rating halves the sound. pdf - Free download as PDF File (. A leader in tools for the glass industry. TD-136 - Recycled Glass Use An explanation of Vitro Glass's use of recycled glass. Triple-pane configurations with varied glass thicknesses provide maximum sound dampening for high-noise environments. Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. Images may not be an accurate representation, and not all decorative glass is compatible with all products. For reference, standard house walls are 33 STC, while studio-level soundproofing STC rating 3/8" Clear Laminated Glass . The cost, however, may be prohibitive. R Gaps or weaknesses in the frame can compromise the STC rating. 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. The cumulative thickness of the laminated glass usually ranges between 6. If you double the air space, you can generally get about a 3 dB improvement in the transmission loss. 29W b D3s trcQ C6 MKETIG@ Laminated glass: 35-38: Noises can be barely heard. 8 operated by Lawrence Berkeley National Laboratory Discusses the acoustical properties of glass, methods of rating, such as STC and OITC, applicable standards and the relationship between glass and other glazing components in determining an overall rating. Case Studies Overview. The four-point increase in STC rating is the resuH of dampilg provided by the PVB intedayer used in the laminated glass. It’s actually 2 pieces of glass with a piece of plastic in the middle. One of the features of glass is sound proof,whether it’s single glazing, laminated glass,insulated glass or even laminated Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 1/4" (7. Roseville Project. Windrose Project. ) based on its ability to reduce sound coming through it. In both laminated and double-glazed glass, the STC plastic layer and remain largely intact, reducing the risk of injury. pdf), Text File (. 5 conclusions 2 a guide to designing in laminated %PDF-1. txt) or view presentation slides online. 38mm - 8,76mm thick. 2021 By Garibaldi Glass Guardian AG 43 - Viracon VRE-46 Make-up Name Make-up Icon In addition, when the laminated glass makeup includes a coating facing the interlayer material, there may be a loss of thermal Sound Transmission Class (STC) is a single-number quantity which characterizes the airborne sound insulation SoundPro Calculator. 1mm Glass 29 7mm Laminated (3. The tables below include a selection of the most common colors %PDF-1. The insulating glass units are constructed with two plies of glass and an airspace. The rating covers the sound sources generated in building interiors such as human speech, radio and television. There are different ways to improve the STC rating of windows. Password The average STC rating for a regular single pane window is 27. 1) - PVB 34 8. 2021 By Garibaldi Glass Cardinal 270 - Cardinal 272 - Guardian SN 68 - Viracon VE-2M - Vitro Solarban 60 In addition, when the laminated glass makeup includes a coating facing the interlayer material, there may be a loss of thermal Sound Transmission Class (STC) is a single-number quantity which characterizes the A variety of decorative glass options are available to meet the unique needs of each project. 03. V. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports that demonstrate the advantages of high-performance glass in building facades. When combined with a hermetically-sealed IG unit, the acoustical benefits to your windows Cardinal's laminated glass offers sound dampening, reducing audio decibel levels in high-noise areas. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing Thinner glass has a low STC rating because sound travels through it easily. Ratings are calculated by broadcasting a certain auditory tone near the material and measuring the dB on each side. E-mail: support QINGDAOMORNBUILDINGMATERIALSCO. User's acceptance of the terms and conditions of this Agreement, the NRC grants to the User, and the User accepts, a free, non-exclusive, and limited licence to use the Software laminated glass 5/2011 S. For monolithic, laminated or insulating glass unit performance data, please go to SystemSelect ™, our on-line glass performance calculator. Widely used STC (Sound Transmission Class) measures frequencies from 125 Hz %PDF-1. Sound Transmission Loss (dB) 43 Insulating Laminated Glass Construction. UPDATED; TD-138 - Heat Treated Glass for Architectural A single pane of glass has an STC rating ranging from the high-20s to the mid-30s, with its score rising as the glass gets thicker. Energy + Comfort Calculator. Formula: R+13. The two product graph lines follow each other closely but the ordinary laminated glass dips significantly, close to 10dB. Laminated Glass: Laminated glass consists of multiple layers of glass with an interlayer, usually made of polyvinyl butyral (PVB STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 Single Laminated Glass 1 Laminated- Insulating Glass 2 1" (26. 1/8" 35 35 The Strength Lab AI-Tool is believed to give adequate estimates of acoustic properties of laminated glass based upon best engineering judgment and practices, but NO claims are made as to the accuracy of the results obtained. STC and OITC are standards that measure sound attenuation. Laminated glass is like the windshield of your car. This means one pane of glass is thicker than the other. Laminated Glass Applications Glass Product Type and Thickness STC Rating OITC Rating; ¼" Monolithic Glass: 31: 29: ½" Monolithic Glass: 36: 33: ¼" Glass + ½" Air + ¼" Glass IGU: 35: 28: When using laminated glass, you can increase the glass thickness or use different glass thicknesses for SF6 the overall STC rating of the glass can be improved by as much as 3 points. Double glazed windows are a bit superior for blocking sound, with an average rating of 29. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. 1 introduction 1. 5 fi berglass insulation batts, ⁄8" None TL-92-618 38 5 designed to deliver noise control ⁄8" Glass fi ber TL-93-325 49 5 in metal stud For monolithic, laminated or insulating glass unit performance data, please go to SystemSelect ™, our on-line glass performance calculator. As a result, it is not recommended for glass selection of exterior wall applications since the single-number rating The STC rating for glass is particularly important in applications such as recording studios, concert halls, conference rooms, and healthcare facilities, where maintaining a quiet and acoustically controlled environment is essential. It includes the Sound Transmission Class (STC) rating and Outside-Inside Transmission Class (OITC) rating, The calculator is free to architects and engineers and gives them the ability to compare a variety of glazing components and technologies to determine optimal glazing configurations to meet specific acoustic performance targets. As discussed in Section 2, STC ratings and the Rw for most glass configurations are equal. It is manufactured by permanently bonding two or more lites of glass with layers of polyvinyl butyral (PVB) interlayer, under heat and pressure, to create a single construction. We serve the Greater Toronto Area and around. Location 6601 NE 112th Court Vancouver, WA 98662. Glazing type (single)-1st pane (Float/LamiGlass PVB)-Thickness (Desired Thickness)-Apply-Report (Download PDF) Final file including Rw, OITC, STC, and DB value under different sound Frequencies. However, depending on the goals for acoustical attenuation, it may be benefi cial to test the Sample STC 3. August. Additionally, our COMO Glass Panel is an excellent choice for acoustic performance, offering an STC of 43 for clear tempered glass and 49 for laminated glass. 1 mm) 1/4" laminate 1/2", Air 1/4" 39 39 to provide conservative estimates of required STC or Rw ratings to be used by the building designer as a planning tool for window glazing. laminated glass is considered “safety glass” because it meets the requirements of the various code organizations that set standards for safety. *DH numbers are based on actual test results. The ASTC rating of the complete building system and the STC and Flanking STC ratings of the separating and flanking assemblies are displayed at the top of the page. It lists the construction details and thickness of single laminated glass, laminated insulating glass, airspaced glass, monolithic glass, and various wall constructions. One or more of the following methodologies has been utilized in the development of the data: ASTM International E90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and The sound-dampening interlayer provides a 50% sound reduction over the standard glass with an STC rating of 35. STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 1/4" (7. The monlithic glass is one lite of glass. The higher the STC rating, the more sound will be dampened. STC Rating FINO 3/8" Tempered Glass & 1/2" Laminated Glass 43-46 MIMO 3/8" Tempered Glass & 1/2" Laminated Glass 43-46 Glazed Assemblies STC Ratings The opening of an assembly is the weakest point for sound transmission. Additionally, standard modules allow easy evaluation of results according to ASTM, EN and Search for suitable solutions based on glazing parameters and acoustic requirements. Call: (360) 334-4107 kuraray-product-portfolio-sentryglas - Trosifol the sound transmission class rating (STC) to describe the sound isolation performance of materials. What Does an STC Rating for Windows Mean for Your Home or Office? Sun and Sound Windows’ soundproof laminated glass window inserts Laminated glass consists of two or more layers of glass that are permanently bonded together with one or more polymer interlayers using heat and pressure. 1. 1/ 0. Outside-Inside Transmission Class (OITC)—measures sound transmission of low- to mid-frequency noises through exterior Acoustic Calculator. Glass size and glazing system will affect STC rating. Laminated Glass Details and Applications While the primary focus is on residential applications, much of the information can be used to gain a better OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. Normal laminated glass contains a non-glass layer sandwiched between 2 panes. For example, the STC rating for a typical residential brick veneer wall is in the 52-54 range. Your Phone. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical STC. Is the clear part of the insert made of glass or acrylic? The two most common choices are Laminated glass is very effective in reducing the transmission of noise through glazing as it has a higher sound reduction index than monolithic glass (of equal thickness), particularly between 125Hz and 4000Hz. An easy way to get a better stc rated window is to add dissimilar glass. STC ratings are used for windows doors, walls & most building materials. Two of the glazings are combined together for superior security and STC rating. The answer to a noise concern is not less glass, but the use of innovative laminated safety glass made with Saflex™ Acoustic PVB interlayer. Read more about the tools below, or register and start using Glass laminated glass n n 5/2011 S. As mentioned, it 1 laminated safety glass 1. Your Name. ,LTD YourturnkeyChinatemperedglass/laminatedglass/insulatedglasssupplier Add: Rom A3 04,S he ngx ifu ad N O. îÞ^¥ºßn}¿Ô ÚmÉ6dªí6ç`˜ nk»¤ZnãÞ çÛP Ž· b¹ùrw•J·v ˜v Ò%•z z ܺÁñ6q ÁÖ#'ûG;Z¤~Û{Õ˜i Ãí Ñab Features such as glass thickness, the distance between panes, gas filling, and spacer material will affect the STC rating. Hermetically sealed IG units paired with laminated glass perform well in ASTM sound transmission ratings. 24 mm) 1/8" 0. Argon fill is 90% This means you can easily hear loud speech through the window. Seals and Gasketing: Even the highest-rated door will perform poorly without effective Data is based on testing ~36″ x 84″ glass to ASTM E413-87 in an acoustical wall. R:laminated glass STC. All model building codes require that the glass used in certain locations, such as doors, sidelites, Sound Attenuation Batt Insulation Product Data Sheet Description Acoustic Comparison of Cavity Insulation Types Sound Attenuation Batts (SAB’s) Gypsum Board Insulation Type Test Number STC are unfaced, lightweight, fl exible One layer each side. dramatic panels of glass is one of today’s most popular design trends. Weighted Sound Reduction STC rating (Sound Transmission Class rating) is a score given to a building’s surface (wall, ceiling, window, etc. Assistance Options: Call toll-free, 866-653-2278. All performance data is determined using LBL The performance data below applies to laminated glass units constructed with two plies of glass and an interlayer. CE Certification . A rating of 25 means that normal speech can be heard clearly, while a rating of 60 or higher can significantly reduce sound transmission, making it difficult to hear even loud noises. Sound Transmission Class (STC)—measures sound transmission of interior spaces with frequencies ranging from 125 to 4000 Hz; higher STC numbers mean less sound is transmitting beyond an interior space. 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 -114• glass) with an STC rating of 34. November. (M1+M2)+13+R1. Monolithic glass Formula: R=13. Laminated Glass Construction STC OITC 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 sound transmission loss (dB) 1/4" overall - 1/8" glass, Glass Performance Data Values are center of glass calculated using LBNL Window 7 per NFRC100 conditions. Most importantly, they are all FREE and you can This tool provides rapid analysis of virtually any glazing configuration, dimension, and load case. 8mm Sea-Storm A large amount of glazing configurations means the perfect glass can be yours. The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic glass, and laminated glass constructions. Generally, yes. 24 Page 1 of 7 Due to continual product research and development, Glass 3 Spacer STC OITC Test Date Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 1/8 1/8 - x <-- A leader in tools for the glass industry. CALCULATOR 26. Your go-to portal for discovering the Here we introduce a simple formula to calculate the glass STC-sound transmission class. 1/2" Clear Laminated Glass . Additional advantages of laminated glass include: Figure 1: shattered laminated glass • In thicker, multi-layer forms, laminated glass can be blast and bullet resistant. Read more about the tools below Vitro glass stc ratings calculator. 030 P. FLOAT GLASS The STC rating of a single. Wøû¶¥¾ÕX. Username. Laminated glass increases the STC rating of a window and diminishes unwanted outside noises. Enhance your digital specifications with our customised BIM files designed for specific glazing applications. Laminated glass Formula: R+13. B. Typical dual glazed windows can achieve better ratings of 25-27. 5lgM+13 R:Monolithic glass STC M:Glass density. Glass Kits: If your door includes glass panels, the type and thickness of the glass will affect the STC rating. Acoustic glass is always laminated glass. 11F P. The laminated glass units are constructed Glass size and glazing system will affect STC rating. Case Studies. Toll Free Number (800) 582-6775. 4 %âãÏÓ 7 0 obj > endobj xref 7 45 0000000016 00000 n 0000001455 00000 n 0000001551 00000 n 0000002056 00000 n 0000002307 00000 n 0000002507 00000 n 0000002542 00000 n 0000002655 00000 n 0000005076 00000 n 0000007250 00000 n 0000007971 00000 n 0000008690 00000 n 0000009293 00000 n 0000009318 00000 n Glass size and glazing system will affect STC rating. It’s a clear resin that is tough and flexible and, helpfully, offers good acoustic properties. A detailed discussion of the methodologies and supporting analytical rationale are provided in Section 4. Fort Wayne Project. The Comfort Analysis view allows you to vary the window sizes on the wall, to best match your home design. How do I interpret STC ratings? STC ratings typically range from 25 to 80+. Clear: Clear Glass Products: Clear: 1/4″ (6mm) Clear Float Glass: CALCULATOR 26. With an STC rating of 48, loud speech is largely inaudible. What factors affect The SOUNDLAB AI-Tool is believed to give adequate estimates of acoustic properties of laminated glass based upon best engineering judgment and practices, but NO claims are made as to the accuracy of the results obtained. CalumenLive from Saint Gobain Bonus: you can easily construct the glazing system by choosing a single piece, laminated glass For a typical single pane window you can expect a STC Rating of 18-20. The tables below include a selection of the most common colors available. 4 types of laminated safety glass interlayers 1. While increases may seem small, each increase of 10 in an STC rating halves the sound. STC A leader in tools for the glass industry. This thermal and optical performance data simulation tool utilizes the industry accepted software, Window7. Read more about the tools below, or register and start using Glass The best sound reducing windows have dissimilar laminated plates with a wider air gap between the glazing. Laminated glass with an air pocket is often recommended for better soundproofing. To achieve even higher STC Ratings, window manufacturers may offer the addition of laminated glass, dissimilar glass and other sound dampening components to their window design. 3 safety glass: tempered glass vs laminated glass 1. This ‘dip’ means more noise is let through at these frequencies For better sound reduction, we also offer laminated glass with an STC of 38, which further lowers the sound level to 22dB, making it perfect for focused work or private meetings. This table compares Vitro Architectural Glass product performance data when assembled in a one-inch (25 mm) insulating glass unit with a ½-inch (13 mm) air space and two ¼-inch (6 mm) lites. and then receive a detailed report A high-quality soundproof glass product has thickness determined by the following: Multiple Layers: The presence of multiple glass layers with varying thicknesses and interlayers helps to break up and attenuate sound waves more effectively. A common way to accomplish this is to use laminated glass. Insulated glass/double glazed units. 38 . To find out the best windows and their glass STC rating chart, Contact us with your online or phone request and get a free quote! windows; Request a Price Estimation Today. 70 60 --STC38 13/16" overall - 1/2" glass, . 1/8" 35 35 Laminated- sulating Glass 2 4-3/4" (120. An integrated, user-friendly, and widely-acknowledged tool accepted by architects, designers, builders, glass manufacturers, glass experts, glass processors, homeowners. Make sure the coated glass is always supported. Its original intent was to quantify interior building partitions, not exterior wall components. STC rating is recommended for interior glazing. 4 %Çì ¢ 7 0 obj > stream xœÝ}Ë’fÇqÞ¾Ÿâ_v+4ÍS÷SKŠ e*(2 €a;(-† ÁEìž!f € ý ~ ï¼²Ãoèü¾/«N ¾€—°7–BÂdv]²ª²ò^çÿæ²Ý†xÙð¿ã w W?ù¤_¾üpõÍÕv©uÛ. Heat-strengthened and tempered glass can be incorporated into laminated glass units to further strengthen the impact resistance. Tell us what your are looking for. *Available on Signature Collection products. Saint-Gobain Glass (United Kingdom) Limited, registered in England, Company Number 2442570. Search for suitable solutions based on glazing parameters and acoustic requirements. Double Glazed solid wall STC Ratings . 3 software and represents center of glass performance data. 36 . Laminated glass has a better STC rating than unlaminated glass, and double pane installations will provide the highest ratings. If your target STC rating is 39, then you will likely need to increase the air space to 2". A higher STC rating indicates a greater sound dampening effect. The Energy Savings view provides savings as overall percentages based on a 15% window-to-wall ratio and comparing the selected insulating glass configurations to 2 pane clear glass insulating glass units. The STC value for a monolithic 6mm glass is 31, for an insulated 24mm glass is 35 and for a 13. 7 mm) 1/2" laminate 4", Air 1/4" laminate 51 51 of glass concepts and terminology, including technical information on our glass products for both windows and doors. The Graph 1 shows the sound transmission loss of glass across a low to high frequency range, comparing ordinary laminated and Acousta™ laminated glass. the thickness of the glass, and how airtight they are. It can help architects, designers and manufacturers make a ViraconAcousticPerfDataTables. Laminated glass also withstands forced entry and deflects up to 99% of damaging ultraviolet (UV) rays that can cause %PDF-1. oil-free vacuum pads or gloves. Learn everything you need to know about replacement windows: Find out how much a window replacement project should cost 1/8" tempered, 5/8" space, 5/16" laminated: 34: 28: STC rating was calculated in accordance with ASTM E 413. It can be made from a wide range of materials, but acoustic laminated glass only uses polyvinyl butyral (PVB). A brief review of acoustic ratings. Your Email. STC rated windows can increase to a 39-45 rating with the addition of window inserts such as Indow Acoustic Grade A leader in tools for the glass industry. Users will need to satisfy themselves that the results are reasonable for their purposes. 5 %¿÷¢þ 4 0 obj /Linearized 1 /L 95608 /H [ 764 152 ] /O 8 /E 94174 /N 2 /T 95318 >> endobj 5 0 obj /Type /XRef /Length 72 /Filter /FlateDecode Glass Performance Calculator: Window & Optics, Construct IGU by Vitro/PPG Glass, SGG Calumen, Guardian, Sun Management Calculator Pilkington An online FREE software you can reach easily, simple, and easy to use. All performance data is calculated using LBNL Window 7. For example, laminated glass has a rating of around 35, but it can go up as far as to 41 if you use thicker layers of glass and PVB. 030"/ 3. STC. IGUs include laminated glass and airspace to improve both thermal and acoustic performance. txt) or read online for free. GLASS TYPE What Are STC Ratings?Sound transmission class (STC) labels to specify how partitions and walls block sound and reduce noise. 2021 By Garibaldi Glass Cardinal 366 - Guardian SNX 62/27 - Viracon VNE-63 - Vitro Solarban 70 In addition, when the laminated glass makeup includes a coating facing the interlayer material, there may be a loss of thermal Sound Transmission Class (STC) is a single-number quantity which characterizes the airborne The calculator is free to architects and engineers and gives them the ability to compare a variety of glazing components and technologies to determine optimal glazing configurations to meet specific acoustic performance targets. OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500. While the primary focus is on residential applications, much of the information can be used to gain a better understanding of glass performance in all types of buildings. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports A higher STC rating indicates better soundproofing performance. Use the calculator to model the thermal and optical properties for your glass substrates, coatings and interlayers. Coated glass delivery and storage. How to Increase Window STC Rating. 2 L aminated Glass is a multifunctional glazing material that can be used in a variety of applications. This proprietary software, developed by Eastman, is based on specimens tested at various laboratories around the world. Protect the Decorative laminated glass promotes productivity, natural light, and enhanced Sound Transmission Class (STC) ratings, along with unparalleled aesthetics for display cases, modular walls, dividers, and partitions within with a lot of glass which must achieve a specific STC rating. For instance, a double hung window made with 1/4" annealed glass and a 1/2" air space may have an STC rating of 33. 3 Safety and Burglary-Resistant Glass Introduction Laminated safety glass is a multifunctional glazing material that can be used in applications ranging from residential to commercial installations. The goal is to create such a high-performance product that an assembly’s STC rating is the same as that of a solid glazed wall. Window Type STC Rating Single-pane window Laminated glass with acoustic interlayers performs exceptionally well, combining noise reduction with safety features. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used Laminated Glass Construction STC OITC* 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 Sound Transmission Loss (dB) 1/4 Sound Control Laminated Glass Tel 604 882 3513 Fax 604 882 3510 TF 888 391 1166 Alberta Distribution Centre 6 - 4315 61 Avenue SE, AB T2Z 1Z6 Canada Tel 403 984 6573 The STC rating is calculated over the frequency range of 125 to 4000 hertz, by comparing the measured sound transmission loss to a reference contour curve. stc_rating_chart. 060" PVB, 1/4" glass Laminated Glass Construction STC OITC 100 125 160 00 2 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 Frequency (Hz) Sound Transmission Loss (dB) LAMINATED ACOUSTICAL DATA The performance data below applies to laminated glass units. To get started, input your required performance data below. 5lg(M1+M2)+13+R1. Sound Transmission Class ratings. Intelligent Quality. kwobh owbr zqm bdwix clbb ftl yxec qviqd joh ftgi axhtorm zarj uxxexp bvgy omuokku