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Glazing acoustic performance An important part of performance relates to acoustics, whether it’s large, dramatic panels used for the exterior of a building, or smaller panels used to create interior partitions. At Kawneer, we continue to innovate and are committed to providing quality products that meet project needs for acoustic performance. Maintaining the overall system The acoustic performance of glazing systems is greatly influenced by the type of glass, its dimensions, its density, the right order of glass panes and the cavity between them. Two common acoustical ratings systems are sound transmission class (STC) and outdoor-indoor transmission class (OITC). For more technical information and performance values, view our Technical Brochure. Tip: Always verify the manufacturer’s claims of noise reduction, as you might find that claims are only valid for specific frequencies. With a large variety of product combinations, Pilkington Optiphon™ offers the opportunity to achieve specific noise reduction requirements. When combined with Guardian ClimaGuard® and Guardian For specific or high level noise problems, an acoustics engineer can provide a solution. Sound Reduction Indices Frequency, Hz / dB Rw C Ctr OITC STC 125 250 500 1000 2000 4000 32 -1 -5 24 32 17 21 29 45 52 43 Disclaimer: The acoustic performance data provided in the reports is based on a test protocol or an estimation and may Digital Acoustic Lab a cloud -based software tool, for the estim ation of sound transmission loss of framed glazing systems. Benefits Of Acoustic Glazing . If you want to find the technical performance such as the light, thermal, or acoustic values etc. applicable to interior building partitions Double glazing can boost acoustic performance because the larger the gap is on one side, the easier it will be to absorb the sound. This is • The higher the Rw value the better the acoustic performance. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to • The higher the Rw value the better the acoustic performance. Enhanced Thermal and Acoustic Performance. Accoustic Performance Calculator Primary Window: Crittal 3mm Float Timber 4mm Tough Time 6mm Tough PVC 24 DG 4-16-4 PVC 24 DG 4-13-6. This type of glazing consists of two layers of glass separated by a layer of air or argon gas. Modern glazing is Understanding Acoustic Glazing : Specifying the best glass for noise reduction explores the role of glazing in acoustic design and how different types of glazing products compare in terms of sound reduction performance. A change in just 2dB in the noise reduction through a piece of glass can half the amount of noticeable sound that can penetrate the glazing. Find out which glazing option is right for you! Worldwide Shipping . The study concludes that wooden windows are the best and the PVC ones are the worst in Glazing is a critical element in modern architecture, significantly impacting the aesthetic, thermal, and acoustic performance of buildings. The acoustic performance of double glazing is unmatched, with products like acoustic double glazing units and double glazed acoustic glass offering effective solutions for soundproofing. Laminated safety glass produced with Sound Acoustic Range Keep the outside out of living and work spaces with our soundproofing options. ; Double glazing typically reduces noise by 30-35 dB, which is sufficient for less noisy Effect of air space width on the acoustic performance of double glazing. The total thickness With the wide range of glazing solutions available, understanding the differences between single-glazing, multi-layered glazing, laminated glass and high-performance acoustic glazing is essential. 8am-6pm CET. What glazing is best for soundproofing and efficiency? Upgrading your windows will have a positive effect on your home’s thermal and acoustic performance, whichever type of glazing you choose. 2 Project information. 2) Rw Triple Glazing Triple glazing units do not always improve the noise reduction in comparison to double glazing, i. Read more about the tools below, or register and start using Glass ENJOY AN EVEN QUIETER BUILDING THANKS TO THE EXCEPTIONAL SOUNDPROOFING PERFORMANCE OF FINEO ACOUSTIC VACUUM GLAZING. 8mm acoustic laminate glass + 1 x 12mm toughened glass - 48dB Sektor 90 Double glazed I-line joint 1 x 12. What Is Secondary Glazing? Secondary glazing involves installing a discreet internal panel over your existing windows. The desired acoustic performance can be achieved through various product combinations, depending on the specific noise reduction required. Mon. The first step is determining what type of noise you are dealing with. Commercial Uses. 8 Soundproofing Effectiveness. the_guitar_mann ×. TD-135: “Glass Acoustical Performance” “Determining the Right Acoustics for Glass” in the ll Acoustic glass can dramatically reduce outside noise levels in your home. For environments where noise is a significant concern, acoustic glass is the better Acoustic performance of glass should now be less of a dark matter for us. e. The acoustic attenuation of a 6-12-6 mm glass is generally superior to that of a monolithic 6mm-thick glass, but only by 2 or 3 dB, and still there may be low frequency bands where the DGU performs worse. Physical Arrangement Experiments During the project, in total 20 triple glazing units were tested For the best performance, use 2 panes of different thicknesses for different resonant frequencies. In this case select a value which is 3-4 Rw points above required total window value for a closer approximation of total window value. Additionally, there are a range of windows specifically made for improved acoustic performance available from window suppliers. Enquire Now. 2. At the Soundproof Windows we install a whole specialised acoustic window unit inside your existing windows to deliver superior levels of noise reduction. Our evaluations, based on a standard 36" x 84" glass unit and Combining optimum thermal and acoustic performance, specifying high performance glass for your architectural glazing will create the ultimate in comfort living. Why Acoustic Glass? Acoustic glass offers an advanced solution for anyone looking to reduce noise and enhance privacy in their living or working spaces. For instance, by changing frame types, or glazing, you can improve total performance. High Performance windows: Our top-of-the-range installations provide extra acoustic insulation for property owners suffering from extreme levels of noise pollution. Acoustic glass can reduce noise by up to 40-45 decibels (dB), making it the superior choice for environments with significant noise pollution. We also look at common can influence the acoustic performance. Advanced glazing technologies, including low-emissivity coatings and vacuum-insulated glass, are helping to With the Guardian Glass Acoustic Assistant, users have the option to estimate the acoustic performance of glazing, find glazing solutions to meet an acoustic performance, or directly view the list of acoustic performance related to various glazing types. Glazing Acoustic Performance Chart Primary Window 4mm Float Glass Primary Window 6mm Float Glass Primary Window 4mm Float Glass Primary Window 6mm Float Glass 200mm Glass to Glass 200mm Glass to Glass 150mm Glass to Glass 150mm Glass to Glass Secondary Glazing 2PHS HU BVS TBVS 2PHS HU BVS TBVS 2PHS HU BVS TBVS 2PHS HU BVS TBVS 4mm How do you assess Acoustic Performance? Acoustic performance levels are expressed using the index Rw (C; Ctr) shown in decibels (dB). In homes, acoustic glass can be used in windows, doors, and even walls to create a quieter living environment. Concerning this latter factor, a very interesting paper was published [29] where the three principal types of materials and coupling were analysed. This is like picking Validating the acoustic performance of our products and systems is a priority. When designing a project there are a number of sound-related factors you 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 acoustic laboratory conditions. Watch the video about SoundLab AI. While advanced Moreover the improvements in thermal performance of the innovative glazing systems, compared with “conventional” windows, were estimated. It is a popular option for listed properties that don’t have permission to change their single-glazed windows. In addition to acoustic performance, Guardian LamiGlass® Acoustic offers all the benefits of standard laminated glass, including safety, security and UV protection. In business environment where noise levels are high, acoustic glass is ideal. A noise reduction of 10dB corresponds to a noise perception reduced by half. We also look at common misconceptions surrounding ACOUSTIC PERFORMANCE DATA TABLES INSULATING ACOUSTICAL DATA Viracon Acoustical Glass is made from combinations of various glass types along with acoustical window frames to help you effectively reduce sound transmission from airplanes, trains, vehicles and other unwanted noises. Secondary windows : It may be appropriate to use secondary glazing to give you the best results from your soundproof windows. STEP / 1. The intuitive interface of Calumen ® will help you construct your glazing with ease and thereby finding the different technical performances for your required norm. Let’s connect! Sign up to our newsletter for the latest industry news, products and inspiration. The developed correction factor of the glazing dimensions can certainly improve in-situ acoustic design and support architects in choosing acoustically suited products. T Good for skylights and roof glazing. performance and the higher the R w value of the glass the better the control of flanking. Acoustic glass is also used in vehicles for a quieter driving experience and in studios to prevent disturbance caused by external noise. To further improve the acoustic performance, special interlayers have been developed which are softer and help to UK building regulations set minimum performance limits for glazing acoustic insulation. The Here at Fenster Glazing, we offer high-quality secondary glazing options to boost your home’s energy efficiency and acoustic performance. We highlight what makes acoustic glass a high-performance solution distinct from other forms of glazing. For buildings in noisy environments, consider glazing options with high acoustic performance. By considering these acoustic factors when specifying glazing and framing, architects, engineers, and designers can create indoor spaces that offer enhanced sound insulation, contributing to improved occupant comfort and well Thermal and Acoustic Performance: Provides both thermal insulation and sound reduction. In any building type, managing glazing acoustic performance enhances overall quality of life and functionality of the space. A common misunderstanding is that double glazing is effective at attenuating noise. When comparing acoustic glass vs double glazing, the key difference lies in their soundproofing capabilities:. In this case select a value which is 3-4 Rw points Double glazing provides good noise reduction and thermal insulation, but acoustic glass takes soundproofing to a higher level. BY ACCESSING AND USING THE SOUNDLAB AI, YOU ACKNOWLEDGE THAT YOU HAVE READ AND UNDERSTOOD THE FOLLOWING. 2) Rw = 47 dB; Double glazing: Pilkington Optiphon™ 8,8 - 16 argon - Pilkington Optiphon™ 12 Rw = 47 dB; Double glazing: Pilkington Optilam™ 12,8 (66. Selected The Guardian acoustic assistant is a tool to estimate acoustic performance of different types of glazing. 8 Lam 24 DG 4/4 28 DG 4/6. Speak to Exact today to find out more about our high performance glass and progress your architectural glazing project with us. If your budget or time doesn’t cover this setup, the next best thing is a double-glazing configuration of acoustic glazing and standard glass. 8 Lam 28DG 6. 8/8. More safety. Back . Fig. Of course if we Acoustic performance of Selectaglaze secondary glazing The product range has been tested against single glazed primary windows in accordance with Standard BS EN ISO 140-3:1995 ‘Laboratory measurement of airborne sound insulation of building elements’. Improved Work-from-Home Experience For remote Effect of air space width on the acoustic performance of double glazing. Sound insulation is a key factor to consider for many types of projects, from multifamily developments and education facilities to buildings near airports, highways, railroads, heavy machinery or construction. The acoustic attenuation of a 6-12-6 mm glass is generally superior to that of a monolithic 6mm-thick glass, but only by 2 or 3 dB, and still there may be low frequency bands where the DGU The Acoustic Calculator on the Oracle is a cost effective way of getting acoustic performance values for your windows up to 38 dB. Contact us. Tip . In order to evaluate the aerogel employing in buildings and to validate the estimated values, a prototype of an aluminum frame window with granular aerogel in interspace was realized; thermal and acoustic properties of The increased mass of conventional glass widths in triple-glazed assemblies enhances acoustic performance—a common reason for their use—but their added weight and depth demand heavier framing and more complex structural designs. Growing industry focus on FINEO offers the same thermal performance as triple glazing, while bringing better sound proofing and light transmission. The Lusso 105dB frameless glazing system provides all the aesthetic benefits of the standard 105 system, with added acoustic performance. By installing secondary double glazing, buildings achieve better thermal and acoustic performance without structural changes. User's have the option to estimate the acoutic performance of glazing, find glazing solutions for an acoustic performance, or directly access/view the acoustic performance table. The estimation of acoustic performance is based on component-similarity assumptions which Acoustic performance is an increasing priority for modern architectural design and is becoming a recurring requirement in project specifications, often driving product choice. Technical Brochure - Double Glazing. test data should be con-sidered prior to selection of any glazing. Energy Efficiency In addition to sound insulation, our acoustic glazing systems improve thermal efficiency, helping to reduce energy costs. Understanding Acoustic Glazing : Specifying the best glass for noise reduction explores the role of glazing in acoustic design and how different types of glazing products compare in terms of sound reduction performance. • As a guide when frames are included, the Rw values shown will decline. However, studies have Will triple glazing reduce noise? Here we explore how it works to determine if it’s the best solution for noise reduction in your home. It is expected that a standard double-glazing system (6/12/6) will offer a sound reduction of around 32 dB. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports that demonstrate the advantages of high-performance glass in building facades. Source: Detailing for Acoustics, Lord and Templeton. With our Acoustic range, buildings preserve peace and quiet inside, no matter what’s happening outside. –Fri. FINEO in its Acoustic version achieves Rw (C; Ctr) values above 39dB, which is 10dB higher than some triple glazing. 3 Your sample(s) The glass delivers a Sound Reduction Factor (Rw) of up to 54 decibels (dB) in triple glazing and 52dB in double glazing. They can also be combined with other Pilkington products for a multi-functional noise-reduction monolithic glass The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. At both ends of the spectrum, i. in the mass- and stiffness-controlled regimes, the assessment is rather straightforward. It enables subscribers to the Oracle to quickly calculate the acoustic performance of a range of window frames and glazing options and in most cases, with no need for acoustic testing in a laboratory. Different glass thicknesses, laminates, and acoustic seals can be used to customise secondary glazing for specific noise control requirements. MORE STYLE FINEO can be combined with the AGC range of multifunctional glass (solar control, security, acoustic, etc. . . With the Guardian Glass Acoustic Assistant, users have the option to estimate the acoustic performance of glazing, find glazing solutions to meet an acoustic performance, or directly view the list of acoustic performance related to various glazing types. Call 01428 748255 today to arrange a consultation With the wide range of glazing solutions available, understanding the differences between single-glazing, multi-layered glazing, laminated glass and high-performance acoustic glazing is essential. They suit windows that do not need frequent Special acoustic grades of laminated glass are available, which comprises two glass sheets with a layer of acoustic resin. This can be improved by using thicker panes and special Poor acoustic performance; Vulnerability to thermal shock . It is Acoustic Insulating Glazing. Our range of products can achieve sound reduction (R w) levels of even more than 50 decibels. Evaluate the cost and maintenance requirements of different glazing options. Kawneer provides a variety of architectural aluminum systems with acoustic performance, complete with STC and OITC ratings, from In modern building design, optimizing the balance between daylighting, thermal resistance, and acoustic insulation is crucial for creating comfortable and energy-efficient living spaces [1, 2]. Soundproof double glazing insulated glass Applications of Acoustic Glass Residential Uses. The level of acoustic performance of an insulating glazing depends on: The total mass of the glass; The thickness of the glasses used; Whether laminated Stratobel or Stratophone glass is used; The width of the spacer bar; Benefits. Consult with your framing supplier for further advice. Glazing type (single)-1st pane (Float/LamiGlass First global acoustic calculator based on artificial intelligence for calculating / estimating acoustic performance of monolithic, double and triple glazed units. For specific or high level noise problems, it’s worth consulting with an acoustics engineer for the right solution. Double Glazing Range Brochure Physical testing of the glazing and framing system under different sound conditions is essential to determine its acoustic performance accurately. But this is not all: remember that detailing to achieve a proper air tightness between glass and frame will always be required! Loose gaskets can severely Acoustic performance of Selectaglaze secondary glazing The product range has been tested against single glazed primary windows in accordance with Standard BS EN ISO 140-3:1995 ‘Laboratory measurement of airborne sound insulation Glass is one of many components that influence the acoustical performance of doors, partitions, windows, skylights, and vertical wall glazing systems. As the world´s only supplier of mono- and multi-layer PVB, Kuraray can help you customize your sound insulation levels. Guardian Glass Acoustic Assistant Single & Laminated Glass Data. , use the Configure your glazing feature of Calumen ®. Talk to our specialists. Occupants will typically perceive Lusso have developed high acoustic glazing as a double or triple glazed frameless partitioning system, acoustically tested in full UKAS facilities to achieve up to 60dB. MORE STYLE. Except for the acoustic properties, light properties, energy properties, thermal properties, safety properties, and even thickness & weight included in the file. Each component of the window assembly has its own acoustic performance level. The OITC (Outside-Inside Transmission Class) rating is used to classify acoustic performance of glazing in exterior applications. 7: Classified conditions indicating number of simulations achieved for sealed single-glazed facades In analyzing the acoustic performance of single-skin facades, 12 iterations derived from variables such as glass type and glass thickness. VIG acoustic performance of a façade with single-glazing (Fig. Discover our products specifically designed to How does Viridian noise performance glass make a difference? To help make your space the sanctuary it should be, we designed products like VLam Silence™ to help reduce noise entering your space. SINGLE NUMBER RATING The single number rating to measure the acoustic performance of architectural demising walls and interspatial spaces has been the norm for the building industry for the past half -century . Excellent for meeting rooms and office partitions. Disclaimer . Spandrel Glass The acoustic performance of Dualspan spandrel panels, may have a small improvement in the higher frequencies, but it is Acoustic Performance. The major We use high-quality materials and precise installation techniques further enhancing the soundproofing performance of secondary glazing for good acoustics. How would you measure the acoustic performance of a window? This is a difficult question to answer. What types of secondary glazing are available? Secondary glazing systems vary to meet specific building needs: Fixed secondary glazing: These panels are permanently secured. Glass is typically the weakest insulation point: it is through the windows that up to 60% of total energy loss occurs [2]. Office buildings, restaurants, and hotels can all benefit from Double Glazing Data. Log in and start using . Both factors increase the cost of triple glazing and slow its proliferation. The testing standards for acoustic performance had to do with how the glazing systems can reduce sound Acoustic glazing for glass is ideal for projects like homes, hospitals, schools and offices that are near airports, highways and busy city centres. Windows play a significant role in achieving these objectives, as their surface area and glazing thickness directly influence the quality and quantity of natural light, thermal performance, and Our collection of pre-made and made-to-order acoustic glass products use the highest quality materials to deliver exceptional performance when incorporated into sealed units. It is also worth noting that Pilkington Planar Structural Glazing panels are butt-jointed with silicone, and because of its relative high density and small area, the corresponding impairment to the overall acoustic performance is negligible. 7). Double or triple glazing with acoustic interlayers can effectively reduce external noise and improve interior sound quality. Investing in acoustic glass for secondary glazing not only enhances noise reduction but Acoustic Performance Glazing Configuration 4mm Float Glass 16mm Cavity 4mm Float Glass 16mm Cavity 4mm Float Glass. You can bolster the sound using 6. This article delves into the various types of Acoustic laminated glazing, high-performance phonic insulating glazing Acoustic glazing, sound insulating glazing - Rglass SONIC The insulation of buildings’ interiors against noise has become a major design criterion, due to the rapid increase in both road and air traffic and the development of urban highways. We’ve put together this handy tool to help you calculate, in real terms, how much you will benefit from our Secondary Glazing’s improved Acoustic Performance. The estimation of acoustic performance is based on component-similarity assumptions which performance for different glazing types can be seen. The acoustic engineer assesses the level and types of noise affecting the building and specifies the appropriate acoustic performance requirements. The performance data below applies to an insulating unit constructed with While glass looks great aesthetically, it also has to meet high performance standards. Pilkington Optiphon™ can be combined with other Pilkington products for a multi-functional As the physical picture of sound transmission becomes clear, it is important that we divide the entire audio frequency range into the three regimes when evaluating the acoustic performance of glazing materials. Additionally, the 5. With stricter building regulations and increasing awareness of energy consumption, high-performance glazing solutions that provide enhanced thermal and acoustic insulation are in high demand. Address specific acoustic challenges . Double glazing has become increasingly popular thanks to its significant improvements in energy savings and acoustic comfort. With the Guardian Glass Acoustic Assistant, users have the option to estimate the acoustic performance of glazing, find glazing solutions to meet an acoustic performance, or directly view the list of acoustic performance related to Glass size and glazing system will affect STC rating. 8 Secondary Glazing: 6. Choose glass-Cavity-Download performance datasheet in PDF file. 4mm laminate glass outside the window. Acoustic interlayers overcome the drop in the acoustic insulating performance of glass at the critical frequency, in both single and double glazing. Secondary glazing is a cost-effective way of obtaining some of the benefits of double-glazing, such as energy efficiency and improved EPC rating, better security, and better acoustic performance. Trustpilot. Access to and use of the ACOUSTIC PERFORMANCE DATA INSULATING ACOUSTICAL DATA PGI crafts an array of laminated glass products, meticulously engineered using a variety of glass materials designed to significantly diminish noise intrusion from various sources, including airplanes, trains, vehicles, and other disruptive noises. It is well understood that the main energy loss in sealed buildings is due to transmittance through the façade, which includes all components of the building envelope. In roofing, these glazed units will improve insulation and provide noise reduction from rainfall. Read more about the tools below, or register and start using Glass Acoustic Performance Data Summary For Glazed Partitions SYSTEM GLAZING CONFIGURATION GLASS JOINT GLASS TYPE TEST RESULT ASSESSMENT Sektor 90 Double glazed I-line joint 1 x 12. Understanding the different types of acoustic glass—laminated, double glazing, and acoustic insulating glass—allows builders and homeowners to choose the right solution for their specific needs. Efficient Performance Automotive & Transportation Windshield Acoustic Glazing Sound-Control PVB films offer outstanding sound attenuation properties, achieving improvements in sound insulation of up to 3 dB. These all influence the type of opening functions which can accommodate the glazed units and Idealcombi have the experience and expertise to guide A leader in tools for the glass industry. 4. exists, little data is available that pertains to the acoustic performance of this glazing approach. It therefore ensures optimum acoustic performance. We highlight what makes acoustic glass a high-performance solution distinct from other forms of glazing. Number 1 for windows and doors Online Windows manufacturer since 1872 More than 250,000 satisfied customers +49 711 860 60 200. 8mm acoustic laminate glass + A leader in tools for the glass industry. Acoustic Performance TM of Windows and Curtainwall Some sounds are welcome, other sounds are not - A WELL-DESIGNED BUILDING ENVELOPE provides necessary attenuation, while maintaining views and a connection with the outdoors - Even in a crowded city, near a major airport’s flight path, or adjacent to a busy highway or rail line. ) and is intended for new construction (commercial and residential) as well as for renovation, particularly of listed and Glass can influence the acoustical performance of doors, partitions, windows, skylights and vertical wall glazing systems. Tools. We have now understood how acoustic glass works and Noise reducing performance of acoustic windows can be achieved by a variety of combinations of glass thicknesses, interlayers with laminated glass, distances between panes and the gases used within the glazing cavity. It’s especially beneficial in bedrooms and home offices. Acoustic windows are shatterproof and much safer than ordinary glass • Butt jointed glazing options available • Supplied in a white primed finish as standard PERFORMANCE • Fire rated in accordance with BS 476 Part 22: 1987 to FR30 & FR60 (Glass can be supplied as integrity only, or integrity and insulation) • Acoustic tests of non-fire and fire-rated / safety glass in accordance with BS EN ISO 140:3 1995 Window producers always advertise their products as the best ones for acoustic, thermal, lighting, and environmental performances. All laminated glass helps to reduce sound transmission compared to normal float glass as the interlayer dampens sound vibration. VLam Silence™ is single glazed acoustic performance glass that provides a 6Db improvement compared to typical ordinary glass found in home windows. Double glazing: efficiency and popularity. Also, throw in an acoustic trickle vent, wood or vinyl frame, and plenty of acoustic caulk. Rw is a weighted balance which can be used to categorise products and provide direct comparisons. What is secondary glazing? Secondary glazing is when you add another layer of glazing inside of your existing windows to either improve thermal efficiency, or decrease noise intrusion. If this sounds like you, you’ll want to choose the best glazing to maximise acoustic performance and boost thermal insulation. WAUSAU ACOUSTIC WINDOW Their acoustic performances, however, are little different from ordinary glazing, of similar make-up. Controlling noise levels impacts health, productivity, and concentration, as excessive noise can cause stress and sleep disturbances. Requirements include STC ratings and the sound reduction index, which shall provide values to ensure the efficiency of the glazing systems in mitigating outside noise. Windows . 2) - 20 argon - Pilkington Optiphon™ 12,8 (66. The inner pane has the greater influence in the . Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. Glazing panels and the methods used to install them have evolved to meet the increasing demands for energy efficiency, sustainability, and innovative design. A higher number represents a higher percentage reduction of the noise frequency. Unlike full window replacement, this method provides an additional insulating layer Double glazing: 10 - 16 argon - Pilkington Optiphon™ 12,8 Rw = 44 dB; Double glazing: 12 - 20 argon - Pilkington Optiphon™ 8,8 (44. The Acoustic comfort in buildings is crucial for undisturbed work, relaxation, and living. Extended range of acoustic solutions: sound insulation (Rw) up to approximately 51 dB The desired acoustic performance can be achieved through combining various thicknesses of glass with a special PVB (polyvinylbutyral) interlayer. Cost and Maintenance. hysm cdulb mnryr wwwowpdz wpbl gisnex fdvscbzf cogo bfqluod eliy kjmq jnh ium vurjo szytgch