Glass stc rating calculator acoustic. 0) of its Acoustic Calculator.
- Glass stc rating calculator acoustic It is an International Organization for Standardization (ISO) rating and part of the ISO 140 (Acoustic) family. J2247-13-303-11-R0 Insulation Included STC ratings allow to accurately compare noise reduction capabilities by using a single value for the acoustical performance of a door. In general, test specimens with higher STC ratings will have better acoustical performance than those with lower ratings. The higher the rating, the more effectively it will accomplish that goal. STC ratings are also used to measure speech intelligibility and clarity. It is important to note that the above listed glass performance will differ to that of a window assembly using these products. glass pane in itself will contribute to 4 points gain on your results. txt) or read online for free. 24 Page 1 of 7 Due to continual product research and development, details listed are subject to change at any time. The best performances can be achieved with our wide range of compositions Acoustic, Acoustic Plus or Acoustic Performance. Once a calculation is complete, users have the option to refine these selections, and then receive a detailed report including acoustic ratings, test details, a sound transmission Prior to the STC rating, When asked to rate their acoustical performance, people often describe these walls as "paper thin. The STC rating for glass is determined through laboratory testing according to ASTM standards. Your go-to portal for discovering the The performance data below applies to monolithic glass. STC ratings are used for windows, doors, walls and most building materials. However, architectural acoustics can often become a bewildering array of alphabet soups (STC, OITC, and IIC, to name a few!), and even acoustically experienced architects and designers can be left scratching their heads. 8 Pilkington Optiphon™ 8,8 37 0 -2 8. Acoustic Calculator: Calculate the Reverberation Time of your space based on geometry and finishes, and This calculator provides the calculation of Sound Transmission Class (STC) rating for soundproofing applications. 5. While standard glass units consist of two panes that Glass 3 Spacer STC OITC Test Date Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. Glass laminati on encompasses adhering two panes of glass together with a special adhesive that adds strength and blocks soundwaves. The laminated glass interlayer should be of a thickness and type designed for optimum acoustic performance (e. The higher the STC rating, the better the soundproofing performance. Laminated and double insulated panes of glass are combined to create combinations that reach a required STC rating. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. Acoustic Behavior Within Rooms. The STC rating system (Sound Transmission Class) is a way to measure how good structural elements such as walls, windows, doors etc. 0 airgap/3mm) is 30. 030" PVB, 1/8" glass 52 57; 58 STC Ratings for Windows and Glass. Next. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports QINGDAOMORNBUILDINGMATERIALSCO. Glass size and glazing system will affect STC rating. 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. B. Laminated panes’ STC ratings typically provide and STC rating reaching high 30s depending on the thickness of the glass and adhesive. The difference in sound levels is used to calculate the STC rating. 29W b D3s trcQ C6 MKETIG@ Sound Transmission Class (STC) - The STC rating is a single number value quantifying the ability of a material to resist the transmission of sound. However, soundproof windows can have an STC rating of 48-54 or higher to provide conservative estimates of required STC or Rw ratings to be used by the building designer as a planning tool for window glazing. STC 35-45: Loud speech is audible but less intelligible. For windows, STC ratings range from 18 to 38. Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. Calculate the target STC rating for the area based on acoustic needs and functions. 0) of its Acoustic Calculator. It is determined in accordance with ASTM E413 using sound transmission loss data measured between 100 – 5000 Hz. 3. While STC rating can provide a good indication of how a material or product will perform against sound in general, it isn’t the whole picture. The MTC Class is 100% based on an STC calculation, with the same 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 1/4" (7. Glass size and For glazing that is installed within a building interior, the Sound Transmission Class (STC) rating may be a more appropriate measure, as it describes the approximate decibel level reduction The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. Sound transmission class (STC) and Impact insulation class results are given as well as the following The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic glass, and laminated glass constructions. It includes the Sound Transmission Class (STC) rating and Outside-Inside Transmission Class (OITC) rating, as well as sound transmission loss data across a range of frequencies, for various glass makeups and Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 1/4" (7. STC 43 Assembly Components Finish material 5/8” Gypsum Size 2 1/2” Steel Stud Spacing 16” oc Product AFB Thickness 1. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. Rw ratings are similar to STC in that they follow familiar testing methods. The OITC (Outside-Inside Transmlssion Class) rating is used to classify acoustic performance of glazing in exterior Triple Insulating 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) Explore the STC rating chart for walls, glass, windows, doors, and materials. It’s an important factor in determining the STC rating and ensuring effective TABLE 1B: GLASS SOUND REDUCTION RATINGS Rw (dB) Page 3/3 situations, the Rw does not account for all noises generated. All contours are defined across the one-third octave band range 125 Hz to 4000 Hz, inclusive, on which most acoustic calculations are based, difficult and time con-suming, certainly for people the standards where meant for. While STCs are a good one-number approximation for TR15 Acoustic Calculator . Always specify the minimum required STC for laminated glass rather than simply specifying “laminated glass” of a specific thickness. 8 Pilkington Optiphon™ 10,8 38 -1 -3 10. the thickness of the glass, and how airtight they are. See Acoustic Rating for more information. Certain places, such as recording studios or residential areas, have specific requirements that affect the ideal STC E413-87 in an ac oust ical wall. provided by a particular glass type. are at blocking sound. 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. Acoustic Test Findings: While there is not a Building Code requirement for STC ratings between adjacent office or commercial spaces, the rule of thumb generally requires an STC of 40-45. With Pilkington Optiphon™ you can match any product in the range to a specific sound profile, and achieve superior performance without dramatically increasing the glass thickness. 8 Pilkington Optiphon™ 20,8 42 -1 -3 20. The Perfect STC Rating for Your Project. ,LTD YourturnkeyChinatemperedglass/laminatedglass/insulatedglasssupplier Add: Rom A3 04,S he ngx ifu ad N O. 030 P. Multiple configurations can be added to the list by clicking "Calculate – Compare Additional Products" after building the next configuration. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. 5” Acoustics Assembly Number: ISS-00 STC: 43 OITC: 28 Report No. The software uses the calculation For instance, a home office may require an STC rating of 35, while a high-security area might need a rating of 55 or higher. pdf), Text File (. What Is a Good STC Rating for Windows? As an example, STC rating of 22 to 24 with gaining two points, shows a 90% reduction in noise. For example, MLV has an STC rating of around 27. Of course there’re many PVB manufacturers such as Kuarary,Decent has developed new PVB interlayer that can increase glass 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 1/4" (7. 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. Instructions. The Acoustic Calculator is an industry tool that helps glass and building professionals identify the best insulating glass unit (IGU) configuration to STC stands for sound transmission classification. 1 / 7 2 / 7 3 / 7 4 / 7 5 / 7 6 / 7 7 / 7 Previous. Outside-Inside Transmission Class (OITC)—measures sound transmission of low- to mid-frequency noises through exterior Data is based on testing ~36″ x 84″ glass to ASTM E413-87 in an acoustical wall. " They offer little in the way of privacy. STC Calculator: Calculate the STC of your partition based on stud type, size, spacing, and drywall/insulation layers. STC Rating: Fire Resistance Rating: For Homeowners *70% recycled content is based on the average recycled glass content in all Owens Corning fiberglass batts, rolls and unbonded loosefill insulation manufactured in Canada. • As a guide when frames are included, the Rw values shown will decline. The effectiveness of these materials is quantified using the STC rating. with single laminated This calculator provides the calculation of Sound Transmission Loss (STL) for a given Sound Transmission Class (STC) rating and frequency. Address: 6301 N Florida Ave Tampa, FL 33604 TRIPLE PANE INSULATING ACOUSTICAL DATA. Vitro Architectural Glass | 400 Guys Run Road Cheswick, PA 15024 USA | ©2001-2025 Vitro Flat Glass llc STC OR NIC Rating = [No canvas support] Frequency (Hz) STC Contour Contour Level (dB) TL or NR (dB) Deficiency Pass or Fail 1/3 OBCF 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 Sum of Deficiencies: Guess STC OR NIC North America, a rating system was introduced in 1970 under ASTM E 413 “Classification for Rating Sound Insulation. 24 mm) 1/8" 0. Double-Glazed STC [dB] Single pane glass window (dual pane glass window range is 26-32″) 27: Sound insulation ratings # Sound insulation depends, among other, on the frequency of the acoustic wave. STC ratings are used for windows doors, walls & most building materials. Address: 6301 N Florida Ave Tampa, FL 33604 Class (STC) rating. For example, a single-track sliding glass partition may have a rating of 30 to 40 depending on the type of laminated glass used. The overall STC rating is an average of the STC ratings measured between 125 Hz and 4,000 Hz. PrivaSEE PrivaSEE is the only all glass single track stacking system best fits the data gives the STC rating. Determine the Target STC Rating. Our glazed partitioning systems are tested at a certified laboratory to ensure reliable STC ratings. Glass Acoustic Data Rw values Float mm Rw 3 , 4 30 5 , 6 31 8 34 10 35 12 37 19 39 Duo Plus™ IGU with Float mm Rw 4/12/4 32 5/12/5 33 6/12/6 34 Single Laminated PVB mm Rw 6. Learn why STC ratings matter for soundproofing. During testing, sound is generated on one side of the glass panel, and measurements Guidelines for Acoustic Glass Systems in Office Environments To illustrate typical office spaces requiring acoustic glass systems, Table 1 outlines common accommodations—such as meeting rooms (Type A), private offices (Type B), and pantries and corridors (Type C)—and provides key specifications like floor area and partition area. Double stud partition walls are typically constructed with varying gypsum wallboard panel layers attached to both sides of double 2x4 wood studs spaced 16 inches on-center and Acoustical Calculator. This rating is based on how much sound is blocked across a range of frequencies, usually from 125 Hz to 4,000 Hz. Several options and upgrades to eliminate this noise include adding a layer of drywall, filling Here we introduce a simple formula to calculate the glass STC-sound transmission class. What are NR, NIC & STC? The overall air-borne sound isolation between two adjacent spaces is measured by the NR (Noise Reduction) between the spaces, and is rated by the single number NIC value (Noise Isolation Constructed with laminated or insulated glass, their soundproofing improves, and STC ratings range from 28 to 60+. higher STC ratings. VOC's Volatile organic compounds – Emitted as gases from a variety of chemicals. Address: 6301 N Florida Ave Tampa, FL 33604 The higher the STC rating, the higher the sound attenuation properties of the system. In this insulating glass units. WOOD PRODUCTS > 1¾’’ SASH I. The STC ratings for windows and glass can range from 18 to 65, depending on the type and thickness of the glass. Laminating glass is a popular way to increase an STC rating. For instance, LEED v4 requires an STC of 45 between standard offices and 50 for executive offices. For example, a whisper is 30 decibels while a rock concert can reach dangerous levels of up to 140 The values given are centre of glass values. A standard dual-pane window carries an STC rating of around 27, but requesting the appropriate options can boost that value up to around STC 34. A detailed discussion of the methodologies and supporting analytical rationale are provided in Section 4. Some have short/long-term adverse health effects. Acoustic A leader in tools for the glass industry. Designed specifically for soundproofing, acoustic doors have the highest STC ratings Understanding Soundproofing Concepts. ” This rating system is the Sound Transmission Class, or STC classification system. 03. 1/8" glass, . STC ratings are an established way to average how much sound is stopped by something. 800-782-5742 Talk to an expert! MAIN MENU MAIN MENU. STC is generally used in settings where you have full-height walls that extend from floor to ceiling. HSW60 is an acoustic stacking glass door tested and rated up to unit STC 43. 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. Laminated glass is a proven, effective solution for acoustical protection. This is Figure 1: Sound Transmission Loss of Laminated Glass with Saflex® Q series acoustic interlayer and Saflex ® R series interlayer. 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. Noise Reduction. STC rated windows can increase to a 39-45 rating with the addition of window inserts STC (Sound Transmission Class) Rating – STC Rating is a numerical value representing how well a structure is at reducing airborne sound transmission. See more Search for suitable solutions based on glazing parameters and acoustic requirements. Effective acoustic design encompasses more than merely blocking sound transmission between spaces; it also involves managing how sound behaves within a room. Higher numbers indicate the assembly is more effective at reducing sound transmission. Glass Acoustical Performance Glass Technical Document | TD-135 Vitro Architectural Glass PAGE 3 OF 4 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 Calculation of STC Rating for Glass. Glass size and glazing system will affect STC rating. V. Configuration = 44. The final STC/OITC rating of the window assembly could vary because of the influence of the framing members and the construction of the window assembly. Calculation Example: The Sound Transmission Class (STC) rating is a measure of how well a material or assembly blocks sound transmission. The insulating glass units are constructed with two plies of glass and an airspace. 2 glass of 3 mm 19 mm [¾''] 29 24 I. After sealed IG units were installed into the laboratory test opening, the first glass panel and wood spacers were used to complete the triple glass configurations. The OITC (Outside This AIS Glass’ software helps you to calculate the acoustic insulation & configurations like glass thickness, thermal breakage, etc. Glass surfaces are counted from the exterior face of the building. STC ratings are the ONLY way to accurately compare various noise reduction products. The rating covers the sound sources generated in building interiors Here’s a quick guide to interpreting STC ratings: STC 25-30: Speech can be easily understood through the partition. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to Guardian Industries’ Glass Group, on of the UK’s leading suppliers of commercial, residential and interior glass products, has introduced the latest version (2. STC ratings are calculated by a weighted average of Transmission Loss (TL: a door’s ability to reduce noise) values taken over 16 frequencies, which are fitted to a curve in a method defined by the ASTM E413 Classification Standard for Rating Phone: 888-815-9691. Glass Kits: If your door includes glass panels, the type and How to Calculate the Glass STC - Free download as PDF File (. 8 Pilkington Optiphon™ 12,8 40 -1 -3 12. For more definitions see our glossary of acoustic terms. To determine the specific STC ratings of glass and a Acoustic glass partitions provide versatility and flexibility within interior space to easily and aesthetically create private rooms. com. CAC The answer to a noise concern is not less glass, but the use of innovative laminated safety glass made with Saflex™ Acoustic PVB interlayer. This rating is given to materials that are tested over a range of frequencies, and are proven to block sound in some capacity. Click "Next" to move to the next layer and click "Calculate" to finalize your configuration. STC Decibels: This acoustic measurement calculates a noise’s volume — the higher the decibel level, the louder the noise. These details help establish the acoustic Common materials include drywall, insulation, and acoustic panels. Enhance your digital specifications with our customised BIM files designed for specific glazing applications. STC is another critical metric that quantifies how well a wall or other vertical partition blocks sound. To achieve your acoustic goals without settling for more expensive solutions, ask for dual-pane windows with dissimilar glass. It’s important to first understand requirements, such as Sound Transmission Class (STC) ratings, decibel levels, glass types, necessary materials, and more. 8 Pilkington Optiphon™ 16,8 41 -1 -3 16. Lab results are highly controlled and may not reflect the same performance in the field based on the conditions of your STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 Glass 2 4-3/4" (120. It’s important to Acoustical Calculator. This guide will help you navigate these ratings and ensure you specify the best solutions from ADL’s custom acoustics product line for your projects. . For example, the STC of a 1/2” insulating glass unit (3mm/6mm airgap/3mm) is 28 and the STC rating of a 3/4” insulating glass unit (3mm/13. 8 It should be noted that STC ratings obtained in a lab may be different than those achieved in real-world applications. One of the features of glass is sound proof,whether it’s single glazing, laminated glass,insulated glass or even laminated insulated,the glass can reduce the sounds transferrd from outdoor to indoor. (NRC) soundPATHS web application is a prediction tool for the calculation of direct and flanking sound transmission between adjacent rooms. The STC value for a monolithic 6mm glass is 31, for an insulated 24mm glass is 35 and for a 13. Factors Affecting the STC Level on Site. Refer to Table 2 for representative STC ratings. The higher the STC rating, The calculation of STC ratings begins with a foundational concept in acoustics: Transmission Loss (TL). Monolithic Glass Construction. *OITC is estimated based on Users have a range of variables to consider, including the type of acoustic interlayer, glass thickness, air space, types of insulated glass, and design strategies. As discussed in Section 2, STC ratings and the Rw for most glass configurations are equal. 030" PVB, 1/8" glass, 1/2" airspace, 1/8" glass, . 5 mm) 1/8" 1/4", Air 1/8" 28 30 4 Acoustical Calculator. 24 If the window has an STC rating of 30, the final STC with the addition of the blanket is not 65. Products. At STC 30, normal speech is audible but unintelligible; at 35 loud speech is audible but unintelligible; and at 42 loud speech is just a murmur. STC ratings are used to determine the transmission loss of a material, which is the reduction in sound intensity as sound passes through a partition. Explanation. g. For more sound dampening Simply put, STC ratings measure sound level on one side of a wall, versus the other side of a wall. This range is suitable for offices or moderately noisy environments. Acoustical Guide – Determining Minimum STC Rating Figure 1. Soundproof glass, also known as acoustic glass or noise-reducing glass, is a type of glass that is designed to reduce the amount of external This article will explore the six variables that affect STC ratings in walls. 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. Once the data is collected, professionals calculate a barrier’s OITC rating in accordance with standards laid out by the American Sound Transmission Class (STC) rating. 1/8" 35 35 Glass 2 1" (26. Based upon the data and methodologies compiled in American Wood Council’s Technical Report No. The order of sound insulation performance from poor to excellent is: Phone: 888-815-9691. 1 mm) 1/4" laminate 1/2", Air 1/4" 39 39 To find out the best windows and their glass STC rating chart, contact the best window company in Toronto such as Vinyl Light. In fact, the results of our testing show that ALUR’s frameless glass system achieves the same acoustical . This is the measure of how much sound energy is lost as it passes through a barrier, such as a door or wall. It’s like the cousin of CAC but focuses on walls instead of ceilings. Once a calculation is complete, users have the option to refine these selections, and then receive a detailed report including acoustic ratings, test details, a sound transmission Phone: 888-815-9691. , Saflex Acoustic PVB). glass constructions only. You can read all about soundproof doors here. OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500. Calculation Example: The Sound Transmission Class (STC) rating is a measure of how well a partition or other building element blocks sound. 52mm laminated glass is 39. STC. Glass walls comprising 50 STC-rated materials can drop into the mid-30s via acoustic flanking—even through the smallest cracks. Dissimilar glass. 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. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing The concepts of Noise Reduction Coefficient (NRC), Sound Transmission Class (STC), and other acoustic ratings are vital in designing spaces that meet your acoustic and aesthetic requirements. Email: info@commercial-acoustics. The STC is also a single number rating calculated from the sound transmission loss values measured from an acoustic test. * The performance data below applies to an insulating unit constructed with two plies of glass and an air or argon filled space. But they also differ quite a bit: for example, Rw covers a larger frequency range than STC. The tables below include a selection of the most common colors available. Users have a range of variables to consider, including the type of acoustic interlayer, glass thickness, air space, types of insulated glass, and design strategies. Thickness STC* OITC* Double Std I. G. What is an STC rating? Sound Transmission Class (STC) ratings show how well a wall assembly diminishes airborne sound traveling from one room to another. A brief review of acoustic ratings. The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. 15 (TR15), this calculator simplifies the calculation of sound transmission through wood-frame floor and ceilings. This rating is common in residential buildings with minimal soundproofing. Acoustic Doors. Pilkington Optiphon™ is our high performance acoustic laminated glass; it enhances sound insulating properties to meet the increasing demands for noise control. You A glass type’s STC rating measures how effectively glass will provide sound insulation. If you're interested in calculators related to acoustics, check out our other calculators: Sound intensity level We would like to show you a description here but the site won’t allow us. While there isn’t a specific solution offering 100-percent sound blockage, glass can reach the most achievable levels, with sound reductions up to 90 percent to 95 percent. These specialty products may include advanced technologies, such as acoustic layers or coatings to enhance sound insulation properties. includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. Determine Target STCs. 2 MOST SENSITIVE RANGE OF HUMAN HEARING THRESHOLD 'DIP' Rw is the alternative to STC and used by most of the world. Gaps or weaknesses in the frame can compromise the STC rating. Depending on the tightness and acoustical performance of the window frame, the final STC rating of the window assembly could have no influence to a 3 decibel drop in STC ratings from the base glass STC rating. 38 32 • The higher the Rw value the better the acoustic performance. An STC rating is an instrument measurement of how much noise is stopped. Learn more. 1/8" 35 35 The STC rating of a glass wall is determined by the system configuration. The higher the STC rating, the better the sound Pilkington Optiphon™ – acoustic performance data Glass types Acoustic performance data [dB] Total thickness R [mm] w C Ctr Single glazing Pilkington Optiphon™ 6,8 36 -1 -4 6. *OITC is estimated based on this test. 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. The STC rating of a partition does not guarantee a quiet environment if the room lacks adequate sound absorption. V400 | Tuscany® Series Acoustical Ratings 1. Noise reduction is the reduction in sound intensity as it travels through a material or barrier. Composition I. 7 mm) 1/2" laminate 4", Air 1/4" laminate 51 51 1/2" (14. 1/3 Octaveband (HZ) STC: For monolithic, laminated or insulating glass unit performance data, please go to SystemSelect ™, our on-line glass performance calculator. nhxk iiixfk ssa zkvehvg pwz buuiqh wwxfxw vwil xtsa balr fvggi lqesl bwjljl ike eiib