Guardian glass stc ratings chart Essentially, the higher the value, the better the barrier is at stopping sound, or in other words; the higher the value, the better the ability of the barrier to control sound transmission. Read more about the tools below A leader in tools for the glass industry. Floor to ceiling windows provide light, transparency and sweeping views of Central Park SunGuard SN 68 low-E coated glass provides a beautiful, natural look with balanced thermal performance and a 0. Compared to standard double-pane units, VIG delivers superior Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC) ratings. Mar 30, 2023 · Sound transmission class ratings generally come up in places where we want to keep sound either in or out, like a sound studio, a road-facing exterior wall, or a bedroom above the garage. This information provided by Pilkington or Guardian Glass. Like the STC rating System, OITC measures sound intensity loss in decibels. The Guardian Plus Acoustic Calculator 2. Web After you select the glazing then you need to determine the STC or OITC rating that the. Double-Glazed This has come about due to our continued investment in glass research and development. STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Glass 2 4-3/4" (120. Glass siz e and glazing system will a˜ect STC rating. Evaluate the aesthetic properties of virtually any glass makeup - just choose the glass you want to visualize, select the building and perspective that suits you, and see how different sky conditions affect the appearance of the glass. HS glass must achieve residual surface compression between 3,500 and 7,500 PSI for 6mm glass, according to ASTM C 1048. The STC wall rating chart measures between 45 – 80. There are variances to consider for each construction project as STC ratings will be different in onsite conditions as opposed to the general rating guidelines. Save as PDF 800 Park Drive , Owatonna , MN 55060 US | (800) 533-2080 Glass stc rating chart pdf. Pim Foam or Dura**** Operating Style Series Numbers Glass 1 Glass 2 Spacer STC File Name: STC Ratings - Tuscany | V400 Due to Jan 18, 2022 · Our Guardian Glass Analytics Tool simplifies creation of glass make-ups through a simple point-and-click, web-based interface. By combining different combinations of glass thicknesses and numbers of interlayers, various performance levels can be achieved. The rating covers the sound sources generated in building interiors However, it is important to note that different glass options and the use of combination units may affect the sound abatement performance of the unit. Laminated 1/4″ Guardian Acoustical Performance of Glass and Wall Constructions. Drywall between double studs can dramatically reduce the STC rating of an assembly. 24 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. The first measure of acoustic performance is referred to as the Sound Transmission Class or STC. Glass size and glazing system will affect STC rating. 6. Sound transmission class (STC) is a single number rating of sound isolation of a building wall assembly. pppideascapes. 6 days ago · 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 Rating Chart For Windows. A center for new ideas At the heart of our innovation program is the Guardian Glass Science & Technology Center (STC). Double-silver coating that delivers triple-silver performance. Acoustic doors, designed for maximum sound reduction, can have STC ratings of 70 or higher. See What’s Possible! STC Ratings Updated: 08/19/2021 by K. Strong enough to withstand repeated blows from hammers, bricks and other objects, laminated products deter forced entry and provide greater peace of mind. … Guardian UltraClear glass delivers both a high light transmission level of over 91% and average iron content of just 0. Read more about the tools below Reveal the world in a new light with high transparency. -1/8" (total 3/8" thick), 1/4"-0. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. Download further information, technical details and white papers on our ranges and specialist glass solutions 122 Leadenhall - The Cheesegrater. A higher STC rating indicates superior sound insulation. One Inch Insulating Glass Unit Comparisons with PPG Architectural Glass www. 174,000 square meters of Guardian SunGuard solar control glass and Guardian ClimaGuard low-E glass for the tallest building in the world Diar al hasa Glass helps provide quality living, and unique residential communities for Saudi citizens This has come about due to our continued investment in glass research and development. 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. Read more about the tools below STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Inside Construction Space Outside STC Value ISO RW 3 Single Laminated Glass 1 1/4" (7. Insulation will noticeably improve the STC rating of an assembly. The Performance Calculator allows the user to model a wide variety of laminated glass makeups using different float glass substrates, coatings and interlayer material, including those makeups where the coating faces the interlayer. 2021-es-eple - 1 - Overview Architectural glazing with high-performance low-e coatings enables building occupants to How the OITC Rating is Measured. The STC rating figure represents approximately the decibel reduction in noise that the assembly can provide. primary glass industry in nearly 50 years when production started at a new plant in Carleton, Mich. 75 lb/ft² Two common acoustical rating systems are: Sound Transmission Class Rating (STC) – applicable to interior building partitions and viewing windows where the sound source is human speech and/or office equipment. House brick rendered both sides (13mm (1/2") Winter. 24 0. * In addition to acoustic performance, Guardian LamiGlass® Acoustic offers all the benefits of standard laminated glass, including safety, security and UV protection. Guardian Glass is one of the largest glass producers and innovators in the world. 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. The STC and ISO RW values indicate the acoustical performance ratings, with higher numbers indicating better sound Guardian SunGuard SNX 70+ low-E coated glass has an incredibly transparent, neutral aesthetic with low 14% exterior reflectivity. The higher the STC rating, the better the sound isolation. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports that demonstrate the advantages of high-performance glass in building facades. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. STC Example : ¼” Monolithic glass has an STC of ~31dB. Consider not only the STC rating but also door quality and construction. STC is widely used to rate interior partitions, ceilings/floors, doors, and windows. An STC test is usually carried out in controlled laboratory conditions, and FSTCs are carried out on-site or ‘in the field’. This results in a beautifully clear, neutral color that offers incredibly clear views. Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. Summer. 2. 7. May 4, 2019 · Here we introduce a simple formula to calculate the glass STC-sound transmission class. 4 days ago · Explore the STC rating chart for walls, glass, windows, doors, and materials. 5” Acoustics Assembly Number: ISS-02 STC: 43 OITC: 28 Report No. Jan 10, 2025 · STC Rating Chart. Web insulating glass units. (Insulation is 125mm (5") glass wool 590lb/ft2) 55 64 Standard house brick unrendered. Laminated glass stc rating calculator. GLASS 1 GAP 1 10% Air, 90% Argon, 1/2" (12. The STC rating goes all the way up to 65. This double-silver solution on clear offers 68% visible light transmission while maintaining minimal outdoor reflectivity at 11%. Enameled glass is a stylish range of color-backed decorative toughened glass, that has a sleek, modern luster thanks to a high-quality coating on the 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. 01%. By comparison, a ¼” laminated glass has an STC rating of ~34 dB. Guardian ClimaGuard 55 glass offers a best-in-class solar heat gain coefficient (SHGC) 1, and provides powerful solar control to help reduce uncomfortable heat and glare without darkening rooms or compromising the view. E413-87 in an acoustica l wall. Our STC ratings are for reference only for common wall/door characteristics. To determine the minimum and maximum sizes available for finished glass products, the glass fabricator must be consulted. com 1-888-PPG-IDEA (1-888-774-4332) Total Total Winter Summer Shading Solar Light to Ultra Solar Visable Solar Night Day- Coeffi- Heat Gain Solar Glass Type Violet Visable Energy Light Energy time Time cient Coeffi- Gain % % % % % cient (LSG) Jul 31, 2022 · Glass doors can range from 28 to 60+ STC ratings, while steel and fiberglass doors range from 20 to 50. This has come about due to our continued investment in glass research and development. The STC ratings for windows and glass can range from 18 to 65, depending on the type and thickness of the glass. 03. Hybrid VIG can achieve an STC rating of 38, compared to the 34 STC of a double-pane IGU. All performance data is calculated using LBNL Window 7. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time glass wool 590lb/ft2) 55 59 Single 150mm (6") Steel stud with 3 layers of 13mm (1/2") plasterboard on one side and on the other side another 3 layers on a flexible channel screwed horizontally onto the steel stud. 0 is Jan 18, 2022 · STC Ratings Updated : 01/18/2022 by K. Glass size and glazing system will affect STC rating. SunGuard SNX 70+ is also designed to help deliver STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Glass 2 4-3/4" (120. ClimaGuard™ residential glass can help you meet or exceed some of the most ambitious window performance goals – including ENERGY STAR® version 7. Double-Pane (insulating) 28 Decibels components. Apr 3, 2024 · Sound Transmission Class (STC) Sound Transmission Class (STC): Average of a barrier’s ability to reduce sound over several frequency bands. Acoustical Guide – Determining Minimum STC Rating Figure 1. NWTL140828-03 STC 40 Assembly Components Finish material 1/ Is the sum of the solar direct transmittance and the secondary heat transfer factor of the glazing towards the inside, the latter resulting from heat transfer by convection and longwave IR-radiation of that part of the incident solar radiation which has been absorbed by the glazing. Is Complete Soundproofing Possible? Our STC rating chart above only goes to 50 because STC rated windows are in that range. 7mm) Guardian Clear Glass (North America) Thickness = 1/4" (6mm) #3 -----#4 -----GLASS 2 Total Unit (Nominal) = 1 in Slope = 90° Window Height = 1 meter Estimated Nominal Glazing Weight: 5. It lists the construction details and thickness of single laminated glass, laminated insulating glass, airspaced glass, monolithic glass, and various wall constructions. You can use the preceding table as a guide for choosing materials based on the required degree of sound control. Glass Type and Typical STC Value. Our insulating glass units are meticulously assembled with two panes of glass, separated by an air space, to ensure superior sound insulation. Guardian Nexa 6 can be used as a base or laminated glass with our high-performance coatings to offer solar control and thermal insulation, and add security, sound reduction or bird-friendly properties when laminated. Glass in your home can offer great views but also high performance. May 30, 2024 · Sound Transmission Class (STC) rating, calculated according to ASTM E413, measures the sound insulation of a window or door across the frequency range of 125 to 4000 HZ, primarily covering human speech frequencies. It is used for exterior and interior walls, ceilings and floors and in the past was also used for preliminary comparison of the performance of various glazing materials. STC 43 Assembly Components Finish material 5/8” Gypsum Size 3 5/8” Steel Stud Spacing 16” oc Product AFB Thickness 3. 3 software and represents center of glass performance data. Calculate What You Need for the Improvements You Want. Green Building Council’s LEED® green building program for the design, construction, maintenance and operations of high-performance green buildings, can influence the building sector and its best practices. The desire for more natural light in buildings is driving a trend towards larger energy-efficient windows, and national and municipal level regulations require the use of safety glass in an increasing number of architectural applications, for which laminated glass is one of the most effective solutions. . Cullet is broken or rejected glass which can be reprocessed – saving resources such as sand, soda ash and limestone. Web Sound Transmission Class or STC is an integer rating of how 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. A leader in tools for the glass industry. 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 This has come about due to our continued investment in glass research and development. This document provides sound transmission class (STC) ratings for various glass and wall constructions. Read more about the tools below GLASS: Guardian Clear Glass (North America) Glass, 1/8" (3mm) (2-ClimaGuard® 70 (North America)) GAP: 10% Air, 90% Argon 12. 87dB. 1/2″ AS(2)-1/4″Lam. We’ve been working with glass since 1932, and yet the limitless potential of this amazing material still fascinates and inspires us every day. 1. Sound Transmission Class (STC) is a single-number quantity which characterizes the airborne sound insulation of a material or building element over a range of frequencies. Resilient channel can improve the STC rating of an assembly. 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. The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. When people are evaluating building materials and acoustical products for sound reduction, they rely on the sound transmission class or STC rating of the product. Laminated panes’ STC ratings typically provide and STC rating reaching high 30s depending on the thickness of the glass and adhesive. On Guardian UltraClear™ low-iron glass, it transmits 68% of visible light with a color rendering index of 94. glass constructions only. 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. The strength of the tint affects the overall performance of the glass, including visible light, privacy and solar heat transmission. Here some of the finest minds in material science and engineering work tirelessly to uncover the possibilities of glass. The first column is the rating of the door panel only; tested in a static inoperable condition to determine the sound transmission through the door. Fall. Sound Transmission Class Sound Transmission Class (STC) is a single-number rating system that assigns a value to a product to indicate how well that product insulates against unwanted noise In the early 1950s, Guardian began production of curved, laminated windshields and in 1970, Guardian became the first company to enter the U. All comparisons are center of glass based on an insulating unit containing 3/4" insulating units; two 1/8" (3mm) glass lites and a 1/2" (12mm) air-filled space for the Guardian glass stc ratings chart. Having already been through the mineralization process, cullet melts at a much lower temperature than the raw materials, so the more cullet used, the more energy efficient the process. Laminated glass provides security for both homes and businesses. Helping you reduce embodied carbon across a wide range of facade applications. The 75,000 square metres façade features a curtain wall that is double glazed to allow for a high solar protection on neutral-looking glass. STC: OITC: Rw: 1/4″ Lam. This STC rating does not apply to the installed storm door unit. 7mm. 0 This guide provides an introductory overview of glass concepts and terminology, plus A leader in tools for the glass industry. Learn more. You can use the calculator to model the thermal and optical properties for glass make-ups ranging from the monolithic uncoated glass to highly complex combinations of float glass substrates, coatings and interlayers. Web E413 Classification for Rating Sound Insulation E1425 Standard Practice for Determining. Cullet Recycling. Jun 15, 2024 · STC Ratings for Windows and Glass. Web A product with a low air leakage rating is tighter than one with a high air leakage rating. … three different glass configurations. 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 for the sound of human speech. When broken, Laminating glass is a popular way to increase an STC rating. If a 105-decibel above ground subway only registers as 80 decibels after traveling through a Window or wall, the sound experiences a 25-decibel deficit. Guardian Nexa lower-carbon glass applications. 5*lg(6*2. 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. For insulating glass unit manufacturers and glass processors, the Guardian Plus Acoustic Calculator is designed to allow the user to select the most competitive glass configurations, from a range of glass options, which suit the building project application. 2021 Guardian Glass, LLC v. 5 – so that views become vivid and true to life, and interior and exterior environments feel connected. *OITC is estimated based on this test. Mar 5, 2021 · Delta IIC is a single-number approximation of an underlayment’s effectiveness based on a control hardwood IIC test. 5. Single-Pane 27 Decibels. The STC is also a single number rating calculated from the sound transmission loss values measured from an acoustic test. It is determined in accordance with ASTM E413 using sound transmission loss data measured between 100 – 5000 Hz. The higher the STC rating, Sound Transmission Class (STC) is a single-number quantity which characterizes the airborne sound insulation of a material or building element over a range of frequencies. Please provide your details with any additional information to support your inquiry and a Guardian Glass expert will get back to you. . Whether safety, thermal insulation, solar protection or sound proofing. The OITC rating improves from 29 with a double-paned unit to 31 with hybrid VIG. Please contact Guardian regarding thicker glass standards. Select materials for sound absorption according to their STC ratings. 0 is part of Guardian Plus, a business support programme for the glass and glazing industry within the UK and Ireland, that offers online support ranging from (instant) responses to technical enquiries to in-house or external training in glass and glass-related topics. 4. Jun 16, 2023 · Learn about glass sound insulation, the importance of Sound Transmission Class (STC) ratings, and how higher STC ratings help reduce sound transmission. OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 Laminated glass is a proven, effective solution for acoustical protection. 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. 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. 28 0. The second column is the rating of the operable door installed with hardware and gasketing which provides the STC rating of the door assembly. Using Guardian UltraClear® as a base glass with other Guardian products can lead to outstanding outcomes in both performance and . Not all glass will have these logos displayed, Both of these How to Read an OITC Rating E413-87 in an acoustical wall. Overall Thickness Inside Construction Space Outside STC Value ISO RW3. Outdoor-Indoor Transmission Class (OITC) – applicable to exterior walls (including doors and windows) where the Laminated glass stc rating chart. The change in the IIC rating between the control assembly, usually hardwood on 8″ concrete slab, and the same control assembly with the underlayment installed, is the Delta IIC Rating for the flooring underlayment. Doubling the mass of glass may also be impractical. When combined with Guardian ClimaGuard® and Guardian SunGuard® glass it also offers improved solar control and thermal insulation, light transmission, appearance and clarity. Window STC Rating Chart. 7 mm) 1/2" laminate 4", Air 1/4" laminate 51 51 At Guardian, we have a wealth of expertise around the use of glass in building. S. Maintaining a comfortable indoor environment is a challenge when temperatures fluctuate, sometimes dramatically, throughout the day, between seasons, and across climate zones. The amount of sound lost is measured in decibels. 0 criteria. 37 SHGC. 24 Page 1 of 7 Technical Glass Guide Update 6/15/21 – Version 3. *OITC is estimate d base d on this test. 7 mm) 1/2" laminate 4", Air 1/4" laminate 51 51 ClimaGuard™ ClimaGuard residential glass can help living spaces become beautiful, comfortable and energy efficient. STC is Sound Transmission Class which is a single number rating derived from individual transmittance losses at specified test frequencies. Learn why STC ratings matter for soundproofing. Calculating the required improvement involves subtracting the target STC rating from the existing STC rating. 174,000 square meters of Guardian SunGuard solar control glass and Guardian ClimaGuard low-E glass for the tallest building in the world Diar al hasa Glass helps provide quality living, and unique residential communities for Saudi citizens fully tempered glass is approximately four times stronger than annealed glass of the same thickness and configuration, and residual surface compression must be over 10,000 psI for 6mm, according to asTm C 1048. Web Sound Transmission Class STC - The STC rating is a single number value. Sound Transmission Class (STC) rating. Monolithic glass Formula: R=13. and Canada climate zone, there is a ClimaGuard low-E glass solution that can help brighten your space and make the most of views. Benefits of using a green building rating system Rating systems, such as the U. Spring. STC is highly dependant on the construction of the partition. 5)+13=28. Enamel glass is a type of glass produced by applying a ceramic paint onto its surface, which is then subjected to drying and tempering processes. To determine the specific STC ratings of glass and a Sound Transmission Class (STC) is a single-number quantity which characterizes the airborne sound insulation of a material or building element over a range of frequencies. Example:6mm clear tempered glass STC=13. PrivaGuard® is an advanced automotive glass that offers low natural light transmission, reduced solar thermal load and excellent privacy protection. May 20, 2014 · Guardian has introduced its free to use Acoustic Calculator as part of its Guardian Plus business support programme. GLASS: Guardian Clear Glass (North America) Glass, 1/8" (3mm) GAP: 10% Air, 90% Argon 12. Ad We Beat Any Competitor Price By 10. Web Viracon - Your Single-Source Architectural Glass Fabricator. Guardian tinted glass is produced by adding small amounts of metal oxides to the float glass as it’s made. Sound Transmission Class (STC) - The STC rating is a single number value quantifying the ability of a material to resist the transmission of sound. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. SOLARBAN® ®†† 70 ®Solar Control Low-E Glass on OPTIBLUE (formerly SOLARBAN z75 Glass) SOLARBAN 70 (2) OPTIBLUE + Clear 46 9 13 0. 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. Our focused portfolio of residential glass products is finely tuned to what homeowners want: For every U. In general, a higher STC rating blocks more noise from transmitting through a partition. Assemblies will be organized by STC value ranging from an STC of 40 to an STC of 57. Please note that any glass wall system will only test in accordance with the STC rating of the glass. 23 87 Insulating Glass Unit Performance for 1-inch (25 mm) units with 1/2-inch (13 mm) airspace and two 1/4-inch (6 mm) lites ARO - 242 West 53rd Street. 17. Helping to make a drive more of a pleasure. 5lg(M1+M2)+13+R1 R:laminated glass STC M1,M2:Glass panel density the dimensions of the glass and the glazing system utilized can influence the Sound Transmission Class (STC) rating. Acoustical Performance of Glass and Wall Constructions. Disclaimer This performance analysis is provided for the limited purpose of assisting the user in evaluating the performance of the glass products identified on this report. Tinted glass is also usually tempered, to prevent breakage from high solar heat absorption. The STC ratings are for glass only in a fullview glass panel. Laminated glass provides higher mechanical resistance and security benefits. On a clear-over-clear double-glazed configuration, its superb 68% visible light transmission with only 11% reflectivity can help illuminate interiors, expand views, and connect indoors and out. January 2020 Vitro® Architectural Glass (PPG) AGC Glass Guardian® Glass Cardinal® Glass Viracon® Saint‐Gobain NSG (Pilkington) Sungate® 400 ENERGY Select® 73 Plus SunGuard® Neutral 78/65 LoE‐180™ VE1‐85 Planitherm HNII Energy Advantage™ Heat-strengthened (HS) glass has been subjected to a heating and cooling cycle and is generally twice as strong as annealed glass of the same thickness and configuration. We would be happy to work through your specification with you, identifying the finer details of your project. The higher the STC number, the better the glass keeps out unwanted noise. GLASS: Guardian Clear Glass (North America) Glass, 1/8" (3mm) Calculated Values are in accordance with NFRC2010 Guardian Glass is one of the largest glass producers and innovators in the world. Sound Transmission Class (STC) Rated Single Door E413-87 in an ac oust ical wall. 5lgM+13 R:Monolithic glass STC M:Glass density. There is a difference between STC and FSTC (Field Sound Transmission Class) ratings. Guardian Clear Glass (North America) Thickness = 1/4" (6mm) #1 -----#2 SunGuard® AG 43 (NA) - Disc. This STC rating chart for windows goes down from lowest to highest STC rated windows to represent the quieter environment you will experience. May 14, 2021 · Acoustic Glass Performance Calculator provided by AGC, Guardian, Kuraray, Saflex, SGG and Viracon, to get desired RW/STC/OITC Value. Floor to ceiling windows provide light, transparency and sweeping views of Central Park Aug 11, 2015 · The new Acoustic Calculator 2. insulating glass units. Laminated glass Formula: R+13. ARO - 242 West 53rd Street. User guides and brochures. The acoustic values given have been either determined in accordance with EN ISO 140-3 and EN ISO 717-1 or are generally accepted values from EN 12758. Physical/mechanical capabilities and constraints of the fabricator will affect the final finished glass size availability. Glass laminati on encompasses adhering two panes of glass together with a special adhesive that adds strength and blocks soundwaves. Adding additional layers of drywall can improve the STC rating of an assembly. Four reasons to pick 70/36. 0 airgap/3mm) is 30. please contact Guardian for thicker glass standards. Laminated acoustic glass comprises two or more panes of glass bonded together using PVB interlayers. It is offered in many popular standard RAL colors. The definitions of two ratings: Sound Transmission Class or STC and Outdoor-Indoor Transmission Class or OITC; The project’s design requirements and how they impact the glazing system, and; How to calculate an STC or OITC rating; STC versus OITC. Experience high clarity with SunGuard™ SN 68 coating on clear glass. zqovyid rflcv wcrk ixrpuzv ulnve yqibx dma vnawnqw hfknpi bzo zoa vqb etixy gdou lkfbly