Glass stc rating chart. Explore noise reducing windows and doors from Pella.
- Glass stc rating chart E413-87 in an ac oust ical wall. Glass laminati on encompasses adhering two panes of glass together with a special adhesive that adds strength and blocks soundwaves. Understanding STC Ratings for Drywall. Typically the material with the lowest resistance to the passage of sound has the greatest impact on a partition's STC value. Heat efficiency usually requires a maximum gap of 16 millimeters, but a larger space is always better for soundproofing. Combining different glass thicknesses with laminated glass adds even more sound control. 030 x 1/8” laminated has an STC rating of 34 1” insulated glass ¼” x ½” AS x ¼” has an STC rating of 35 Structural Performance The strength of laminated glass is determined by the glass thickness, type of vinyl, glass size, and the nature of loading. 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. PDF-1. Save as PDF 800 Park Drive , Owatonna , MN 55060 US | (800) 533-2080 Mar 3, 2023 · To find out the best windows and their glass STC rating chart, contact the best window company in Toronto such as Vinyl Light. 5” Acoustics Assembly Number: ISS-02 STC: 43 OITC: 28 Report No. 17. Laboratory testing is used to measure the resistance of partitions such as walls, windows, or entry doors to the passage of sound. STC ratings are determined in a laboratory under controlled conditions. A higher STC rating translates into more reduction in sound. Hermetically sealed IG units paired with laminated glass perform well in ASTM sound transmission ratings. 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. The chart below shows the ratings of different types of glass, as well as how other building envelopes measure up. This rating is given to materials that are tested over a range of frequencies, and are proven to block sound in some capacity. Assemblies will be organized by STC value ranging from an STC of 40 to an STC of 57. 030 P. The STC rating figure represents approximately the decibel reduction in noise that the assembly can provide. See additional notes below data for specific Typical dual glazed windows can achieve better ratings of 25-27. 1. Read more about the tools below STC Rating STC Rating Static Door Operable Door Perimeter Seals Door Bottom Threshold Panel w/ Gasketing 30 30 103N, 107N, 120N, 122N 420N 897NS 127N, 133N, 134N, 137N 137S, 303N, 700N, 700S 30 30 130S 225S 896S Feb 18, 2022 · 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. Old aluminum and wood windows are rated even lower. V. UPDATED; TD-138 - Heat Treated Glass for Architectural Sound transmission class (STC) ratings solve that problem by giving a single value to acoustical performance for a door. Double-glazed glass can also achieve an STC rating of up to 40. fire-resistance ratings for veneer and conventional systems –Can minimize or eliminate irregularities such as ridging, boarding and nail pops associated with standard drywall Sound transmission class (STC) is a single number rating of sound isolation of a building wall assembly. At this rating, you may be able to hear very loud sounds faintly, but most sounds you won’t hear at all. Actual values may vary due to production tolerances. In the fi eld, fl anking noise, quality of material and construction practices can lead to widely varied STC’s for the same assembly. STC is highly dependant on the construction of the partition. Thermolite Sound Transmission Loss Test Report Results The gap between lites also provides acoustic insulation, to improve STC ratings. This might seem a little difficult to do, but as long as a person has somewhat of an idea on how the ratings work, it is a A leader in tools for the glass industry. Glass size and glazing system will affect STC rating. At JELD-WEN, for example, we glass constructions only. Lower Range Up to STC 35. -1/8" (total 1/4" thick), 1/4"-0. Additional Technical Our spec sheets offer a detailed look at individual products, and include information on product features, options, and performance data. Call us with any questions! Sound Transmission Class (STC) Ratings. After a 1/4” Thermolite sound control window was placed behind the same window, the STC rating improved to 43 and the OITC rating improved to 33. 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. May 22, 2022 · And glass in the door lowers the overall STC rating even more. 751 614 -426. Explore noise reducing windows and doors from Pella. Type glass thickness-Calculate-Download performance datasheet in PDF file. ,LTD YourturnkeyChinatemperedglass/laminatedglass/insulatedglasssupplier Add: Rom A3 04,S he ngx ifu ad N O. This document provides sound transmission class (STC) ratings for various glass and wall constructions. Laminating glass is a popular way to increase an STC rating. -1/2" (total 3/4" thick), panels caulked in place in single frame with wooden stops and glazing putty. 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. On the Technical Glass Guide Update 6/15/21 – Version 3. Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. Click here to review the full details. 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. Glass siz e and glazing system will a˜ect STC rating. It also explains the factors that affect the STC ratings, such as interlayer thickness, air space, and sealing methods. Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 1/4" (7. Sound Transmission Class ratings. 3 software and represents center of glass performance data. What does an STC rating of 45 mean? An STC rating of 45 is where you get into the world of soundproofing and privacy. … Dec 7, 2023 · Through acoustic testing, you’ve determined an assembly has an STC rating of 50. There are different ways to improve the STC rating of windows. components. Adding additional layers of drywall can improve the STC rating of an assembly. To determine the specific STC ratings of glass and a The performance data below applies to an insulating unit constructed with two plies of glass and an air or argon filled space. 7 mm) 1/2" laminate 4", Air 1/4" laminate 51 51 Mar 30, 2023 · Also, an acceptable STC rating for walls may be different from the acceptable STC rating for floors, depending on whether the walls are shared by a neighbor, or a room is directly beneath a kitchen with heavy traffic. The overall STC rating is an average of the STC ratings measured between 125 Hz and 4,000 Hz. Laminated and double-glazed glass both hold STC ratings of 40, but anything higher typically requires a combination of the two. Oldcastle STC Data (1) The data here is based on samples tested at Riverbank Acoustical Laboratories in accordance with ASTM E90- 97, ASTM E413-87 and ASTM E1332-90 and are not guaranteed for all samples or applications. Down to 35 – 40. Lab Proven STC Ratings VT's Sound-Resistant STC Doors. The tested STC ratings were less than the manufacturer's published STC ratings. This document provides a chart of STC ratings for various glass configurations based on sound transmission loss tests. 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. Both STC and OITC ratings inform your window or door selection based on sound insulation May 6, 2020 · As a result it is not recommended for glass selection of exterior wall applications since the single-number rating was achieved under a specific set of laboratory conditions. In the US, it is widely used to rate interior partitions, such as demountable walls and/or glass walls, ceilings/floors, doors, windows and exterior wall configurations. 0 This guide provides an introductory overview of glass concepts and terminology, plus 400 Series Frenchwood® Hinged Patio Door Hardware (Trim Set) Exploded View The higher the STC or OITC rating means the higher the sound attenuation properties of the window. Compare the STC and OITC values for various frequencies and thicknesses of glass. Lab results are highly controlled and may not reflect the same performance in the field based on the conditions of your environment. Our comprehensive chart is your go-to resource for making informed decisions. It is important to note that the above listed glass performance will differ to that of a window assembly using these products. 2. Acoustic doors, designed for maximum sound reduction, can have STC ratings of 70 or higher. Quite simply, the higher the rating, the better the product. An STC rating is an instrument measurement of how much noise is stopped. Consider not only the STC rating but also door quality and construction. Insulation will noticeably improve the STC rating of an assembly. In the USA, it is widely used to rate interior partitions, ceilings and floors, doors, windows and exterior wall configurations (see ASTM International Classification E413 and E90). Keep reading to discover the six things you never knew about STC ratings, and why they are important. *OITC is estimate d base d on this test. Costing more than other materials, this is used mainly for exterior applications. Even if the glass is damaged, it remains securely in its frame, keeping the elements outside. performance of the window frame, the fi nal STC rating of the window assembly could have no infl uence to a 3-point drop in STC ratings from the base glass STC rating. Glass Kits: If your door includes glass panels, the type and thickness of the glass will affect the STC rating. 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. Laminated & Double-Glaze Combinations. Glass thickness. The STC and ISO RW values indicate the acoustical performance ratings, with higher numbers indicating better sound Jan 18, 2022 · STC Ratings Updated : 01/18/2022 by K. The higher the STC rating, the better the sound isolation. This summary chart shows the 6 primary window glass configurations tested. If thicker glass material is used, the rating can go up to 35. 24 mm) 1/8" 0. 030" P. Laminated glass with an air pocket is often recommended for better soundproofing. Understanding STC ratings for drywall can be complex. S. *OITC is estimated based on this test. STC ratings are the ONLY way to accurately compare various noise reduction products. Here we introduce a simple formula to calculate the glass STC-sound transmission class. 5lg(M1+M2)+13+R1 R:laminated glass STC M1,M2:Glass panel density three different glass configurations. Heavier glass and/or different glass thicknesses can be used in lieu of standard glass for a higher reduction of sound. For windows, STC ratings range from 18 to 38. We sent our solid and glass walls to get Sound Transmission Class (STC) ratings from labs that follow the American Society of Testing and Materials (ASTM) E90 test procedures. com (blocks 30 decibels) You should be able to get either for under Factors that affect glass STC. Example:6mm clear tempered glass STC=13. 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. WE STAND BEHIND OUR GLASS WinGuard® Aluminum products are backed by some of the best warranties in the industry, including: • A 10-year warranty on the frame and laminated glass unit • Limited lifetime warranty on the insulating glass unit May 22, 2022 · Commonly called acoustic laminated insulated glass, the windows provide an STC of 39 to 54 or greater. Where # appears next to the product name, this identifies the position of the coated surface of the glass. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time Jul 5, 2023 · Thinner glass has a low STC rating because sound travels through it easily. 24 Page 1 of 7 Glass 3 Spacer STC OITC Test Date Test Number Operating Style Series Numbers 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. Double-Glazed Laminated architectural glass can be fabricated using various glass types, including low-e, clear, low-iron, tinted, reflective, patterned or wired glass to achieve desired aesthetics or to improve solar control and thermal performance. Jan 28, 2024 · The average STC rating for a regular single pane window is 27. Jan 10, 2025 · Precast walls will usually come with an STC rating to save you the trouble of how determining the STC rating of a wall yourself. STC ratings are a logarithmic scale similar to the earthquake Richter Scale, which means each escalating number is significantly higher in performance than the previous number. Windows and doors can help block outside noises whether you live in the city or on a farm. 5lgM+13 R:Monolithic glass STC M:Glass density. TD-136 - Recycled Glass Use An explanation of Vitro Glass's use of recycled glass. The STC (Sound Transmission Class) is a rating system for interior building partitions and viewing windows used to Triple Insulating Glass Construction STC OITC It should be noted that STC ratings obtained in a lab may be different than those achieved in real-world applications. Glass surfaces are counted from the exterior face of the building. E413-87 in an acoustica l wall. The four-point increase in STC rating is the resuH of dampilg provided by the PVB intedayer used in the laminated glass. The STC or sound transmission class is a single number method of rating how well wall partitions reduce sound transmission. STC is determined by a weighted average of TL values taken over 16 frequencies, which are fitted to a curve in a method defined by the ASTM E413 Classification Standard for Rating Sound Insulation. Even then, differences of 1-2 points STC can occur for the same assembly in the same laboratory. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. There is plenty of information out there at our fingertips, but it's important to get a full picture. 6. 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. NWTL140828-03 STC 40 Assembly Components Finish material 1/ When planning your acoustics—especially in environments like conference rooms or medical facilities where sensitive information is discussed—knowing the STC ratings of different materials is crucial. Standard windows offer sound control up to an STC rating of 30. Solid Glazed Wall STC Rating 3/8" Clear Tempered Glass 36 1/2" Clear Tempered Glass 38 Double Glazed STC Ratings Muraflex Double Glazed solid walls scored industry standards: Solid Double Glazed Wall 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. Determine Target STCs Jul 31, 2022 · Glass doors can range from 28 to 60+ STC ratings, while steel and fiberglass doors range from 20 to 50. B. Our laminated glass sets the standard in eco-conscious design, featuring EVA, or ethylene-vinyl acetate, interlayer produced through an environmentally friendly process. Beyond the type of windows you select, other factors can affect the STC rating of your glass. Dec 22, 2022 · Double-glazed glass can also provide an STC rating of up to 40. 22. 800-782-5742 Talk to an expert! Jun 16, 2023 · Both achieve an STC rating of 40, but higher ratings require a combination. Mid Range STC 36 - 42. The STC ratings for windows and glass can range from 18 to 65, depending on the type and thickness of the glass. Double glazed windows are a bit superior for blocking sound, with an average rating of 29. Of course, the higher the STC rating, the better. With either scale (the OITC scale for exterior glazing or the STC scale for interior glazing) a performance rating of 30, for instance, Tested under ASTM E90, laminated outside pane consisted of either 1/8"-0. 50003 659. Sound Transmission Class (STC ) is an integer rating of how well a building partition attenuates airborne sound. STC Rating Chart Determining STC Rating of Wall, Drywall, and Windows STC Rating of Drywall. 1/4” (6mm) monolithic glass has an STC rating of 31 1/8” x . 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. Glass size and glazing system will affect STC rating. Mass pigmented and decorative interlayers can also be used to provide a wide range of effects. STC 43 Assembly Components Finish material 5/8” Gypsum Size 3 5/8” Steel Stud Spacing 16” oc Product AFB Thickness 3. A higher sound transmission class rating indicates more effective sound insulation than a lower number. Seals and Gasketing: Even the highest-rated door will perform poorly without effective Laminated glass is two or more layers of glass permanently adhered to one another with one or more polymer interlayers in a thermoset, high-heat process. It’s important also to consider: Glass thickness: thicker glass typically provides better sound insulation than does thinner glass Jun 15, 2024 · STC Ratings for Windows and Glass. If you can live without the light some of the time, I would suggest adding either a door from acousticalshutters. Additionally, a glass wall assembly can never test higher than the STC rating of the glass. 87dB. Learn why STC ratings matter for soundproofing. STC Results Chart. In general, a higher STC rating blocks more noise from transmitting through a partition. Factors That Affect Your Glass STC Rating. Refers to a window manufactured by Soundproof Windows, Inc. For this reason, STC (Sound Transmission Class) ratings have become a primary consideration when choosing doors for large-scale projects. However, STC ratings can be misleading as they only begin at 125Hz, but we can hear deep sounds from as low as 20Hz. STC 30 if you live in an average area but want more privacy, STC 35 is the go to in louder areas, STC 37 if in a louder area and you want a luxury feel or you are pretty close to the airport or overlooking the freeway, STC 40+ is either you live in an area that is obnoxiously loud (seldom the case for single family housing) or you don't want to A3000 Series Sliding Glass Doors (1) Restorations Series V5500 (1) STC Ratings (2)Zip file Installation Instructions (5)Zip file. The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. 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. For simplification, we have segmented NanaWall sound-rated opening glass wall solutions into three categories. Tested under ASTM E90, laminated outside pane consisted of either 1/8"-0. OITC, on the other hand, covers a broader frequency range (80 to 4000 Hz), including lower frequencies often associated with external noise. 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. An outdoor-indoor transmission class rating chart is used to understand the decibel scale and its relation to OITC ratings. See generic STC and OITC ratings for monolithic, laminated, and insulating glass units. Fortunately, there are some tools we can use when we choosing the suitable glass types we need. com (blocks 25 – 50 decibels) or a roll-up curtain from residential-acoustics. 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 thinking about STC ratings, there is a lot to understand and consider. A SPW using 1/4" laminated glass A SPW using 5/8" laminated glass All tests were performed by Western Electro-Acoustic Laboratory (WEAL), a fully accredited Resilient channel can improve the STC rating of an assembly. These independent tests confirm that Falkbuilt delivers superior acoustic performance. Check the STC rating chart above to have a better understanding of this. What Is a Good STC Rating? An excellent rating is an STC of 60 or higher. Performance documents for altitude limits, NFRC ratings, center of glass, joining window load table, air infiltration, and more. The STC (Sound Transmission Class) rating is a single-num ber rating system for interio r build ing partitions and viewin g windows used to catego rize acoustic performanc e. 24 Page 1 of 7 Feb 19, 2024 · Explore the STC rating chart for walls, glass, windows, doors, and materials. To determine the specifi c STC ratings of glass and a window or door assembly, the following ASTM standards should be used: • ASTM E 90 - 90 Standard Test Method for -114• glass) with an STC rating of 34. 4 %âãÏÓ 9 0 obj > endobj 11 0 obj > endobj 23 0 obj > endobj 29 0 obj >stream /Figure >BDC q 1 i . That being said, anything below an STC rating of 40 might garner comments about paper thin walls. The STC ratings allow accurate 'apple to apple' comparisons. 06 m W* n 0 792 612 winds. Drywall between double studs can dramatically reduce the STC rating of an assembly. stops sound. Noise is one of the single most common complaints at hotels, condos, and other commercial properties. Learn how to reduce sound transmission with glass products and systems. This rating is especially important to architects since it can have the largest impact on building performance. The cost, however, may be prohibitive. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. 501 re 306 396. One US glass manufacturer who has STC Rating Chart. The higher the STC rating, the more sound will be dampened. 3mm thick monolithic glass, glass STC is only 30Dbs,when glass thickness was increased to 12mm thick,glass STC can reach 36Dbs,whether it’s single piece monolithic glass,laminated glass,or insulated glass,the thicker total glass thickness,the better sound transmission loss. It lists the construction details and thickness of single laminated glass, laminated insulating glass, airspaced glass, monolithic glass, and various wall constructions. May 30, 2024 · STC is a widely recognized measure for sound insulation in windows and doors, focusing on human speech frequencies. Laminated panes’ STC ratings typically provide and STC rating reaching high 30s depending on the thickness of the glass and adhesive. Argon fill is 90% and air fill is 100%. When planning glass wall systems, here’s a May 14, 2021 · It is hard for us to know how much DB noise has been blocked during transmission. Class (STC) rating. -1/4" (total 1/2" thick), 1/4"-0. AGC Glass Configurator Single & Laminated Glass Data. Oct 16, 2023 · acoustical ratings not available for this glass combination glass combination X--> X 30 27 04/12/23--> X 34 29 12/14/22 OITC Test Date Test Number Intercept or Cardinal horizontal slider 6110 6111 6130 6130J 6170 size tested net 59" x 47" STC 29-34 X X <--32 Operating Style Series Numbers Glass 1 Glass 2 Spacer STC TL22-271 28 12/14/22 TL22-270 QINGDAOMORNBUILDINGMATERIALSCO. Each configuration was tested by itself and then with the added Soundproof Window at 4 different air spaces (glass to glass measurements) shown to the right. In fact, dual-pane windows with dissimilar glass can achieve STC ratings nearly as high, if not as high, as triple-pane or laminated glass. All performance data is calculated using LBNL Window 7. 03. 5)+13=28. Riot Glass® is a full line of ballistic glass available in single and dual pane options. 1. A higher sound transmission class rating indicates more effective sound insulation than a lower rating. A rating increase from 24 to 33 corresponds to a 95% of noise reduction. Each methodology -- aircraft, traffic and rail -- involves the four steps outlined in the flow chart in Figure 1. This rating can be considered the baseline from where you are getting serious when it comes to preventing some transmission. An STC rating measures how much noise is stopped by something. Specific products for these building materials will vary, so talk to the manufacturer to get the exact STC rating before purchasing. Pim Foam or Dura**** 3/32 3/32 - 28 23 4/19/99 TL99-145 Operating Style Series Numbers Glass 1 Glass 2 Spacer STC File Name Oct 10, 2024 · 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 STC ratings are used for windows, doors, walls and most building materials. 5*lg(6*2. Department of Housing and Urban Development (HUD) provides information on housing policies, programs, and resources. Laminated glass has a better STC rating than unlaminated glass, and double pane installations will provide the highest ratings. Glass 3 Spacer STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Trinsic I V300 updated 04. [3] The STC provides a standardized way to compare products such as doors and windows made by competing manufacturers. How to Increase Window STC Rating. 1/8" 35 35 The STC rating is the average amount of noise stopped at 18 different frequencies, measured in decibels. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. Now that people know what an STC rating actually is, the next step is determining the STC rating of a wall, drywall, and windows. The attached STC and OITC data is for glass only and that the final STC rating of the window assembly could vary because of the influence of the acoustical performance of the framing members and the construction of the window assembly. 29W b D3s trcQ C6 MKETIG@ –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. Our retrofit framing allows us to install the ArmorPlast® into your existing framing to significantly reduce costs and downtime. STC ratings tell you how well a wall, window, ceiling, door, etc. Products versus Spaces Dec 31, 2024 · Gaps or weaknesses in the frame can compromise the STC rating. High Range STC 43 - 45. Therma-Tru STC-rated Noise Reduction doors deliver aesthetics with a commercial level of performance for residential projects. Values are center of glass calculated using LBNL Window 7 per NFRC100 conditions. The U. Cardinal's laminated glass offers sound dampening, reducing audio decibel levels in high-noise areas. But what does that really mean? A sound transmission class chart is a simple way to understand the decibel scale and its relation to STC ratings. -1/8" (total 3/8" thick), 1/4"-0. Armorplast® and Riot Glass® ArmorPlast® is designed to resist penetration in UL752 Levels 1, 3 and 6. As the table shows, a single pane 1/4” annealed curtain wall window has a STC rating of only 31 and an OITC rating of 28. Monolithic glass Formula: R=13. Mar 5, 2021 · STC stands for sound transmission classification. Find the Sound Transmission Class (STC) ratings for different types of insulating glass construction, such as dual and triple pane, with airspace and PVB. Typically a two (2) or more point change Oct 18, 2023 · How to Read an OITC Rating Chart. Mar 22, 2022 · Six Things You Never Knew About STC Ratings. Transmission Class (STC) rating may be a more appropriate measure, as it describes the approximate decibel level reduction for the sound of human speech. 5. These Nov 25, 2022 · A four-point STC improvement can cause a clearly perceptible change in your home’s acoustics, while a 10-point improvement can reduce sound by 50 percent. Most of the time, an assembly’s OITC rating is lower than an STC rating. This performance data is not a commitment for Cardinal to produce. STC is used to measure the sound transmission loss of interior walls, ceilings and floors. It is a non-linear scale. Understanding STC May 18, 2023 · Sound Transmission Class ratings, commonly referred to as an STC rating, is an integer rating that details how well a building partition reduces airborne sound waves. STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Glass 2 4-3/4" (120. Learn more. It includes STC ratings for commonly used materials such as: The values given are centre of glass values. STC is widely used to rate interior partitions, ceilings/floors, doors, and windows. Laminated glass Formula: R+13. 70 60 --STC38 Feb 11, 2025 · The result is sound control over a greater range of frequencies and a significantly higher Sound Transmission Class (STC) rating than a window with standard dual-pane glass. Increasing glass thickness is the most important measurement. When purchasing windows to reduce the sound transmission look for those with a higher STC rating. OA Glass 1 Glass 2 Acoustical Ratings - Ultra I C650 updated 04. aqnbgb hxtfl ima mbaph qmgj czxgwdzt hosqrg yaikqk fkdn tjnbkq esk jyt ywmqn hlhsk onphng