Glass stc rating calculator. *OITC is estimated based on this test.

Glass stc rating calculator. txt) or read online for free.

Glass stc rating calculator Although it is commonly used in the United States and is the most widely used measurement of sound reduction, STC has various limitations that prevent it from being comprehensively reliable in determining actual soundproofing expectations. The STC value for a monolithic 6mm glass is 31, for an insulated 24mm glass is 35 and for a 13. ,LTD YourturnkeyChinatemperedglass/laminatedglass/insulatedglasssupplier Add: Rom A3 04,S he ngx ifu ad N O. Factors Affecting the STC Level on Site. STC is highly dependant on the construction of the partition. The STC ratings allow accurate 'apple to apple' comparisons. In addition, proper installation is critical to ensure that sound does not enter through poorly fitted components. Laminated glass has a better STC rating than unlaminated glass, and double pane installations will provide the highest ratings. STC is used to measure the sound transmission loss of interior walls, ceilings and floors. 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). electrics • Power and Data capability • Hard-Wired and Modular connections. fire-resistance ratings for veneer and conventional systems –Can minimize or eliminate irregularities such as ridging, boarding and nail pops associated with standard drywall. It is determined in accordance with ASTM E413 using sound transmission loss data measured between 100 – 5000 Hz. The Vitro Construct IGU tool allows you to configure a specific insulated glass unit by dynamically selecting the individual components of the configuration. Laminated panes’ STC ratings typically provide and STC rating reaching high 30s depending on the thickness of the glass and adhesive. . The order of sound insulation performance from poor to excellent is: monolithic glass < laminated glass How to calculate the glass STC? One of the features of glass is sound proof,whether it's single glazing, laminated glass,insulated glass or even laminated ins E413-87 in an acoustica l wall. An STC rating is an instrument measurement of how much noise is stopped. Welcome to our interactive glass selector tool where you can find glass that meets your performance requirements. Read more about the tools below STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Glass 1 3/4" (19. Both STC and OITC ratings inform your window or door selection based on sound insulation The performance data below applies to an insulating unit constructed with two plies of glass and an air or argon filled space. Explanation. [ ] Review and Interpret Results: Analyze the STC rating to ensure it meets your soundproofing needs. The STC rating is the average amount of noise stopped at 18 different frequencies, measured in decibels. Glass siz e and glazing system will a˜ect STC rating. integration • Drywall/base building • Optos, Focus and Tek Vue A: Based on our experience at the Architectural Testing Acoustical Laboratory, an OITC rating of 32 or STC rating of 40 is very difficult to achieve on a window with conventional 1" insulating glass. %PDF-1. Acoustic doors, designed for maximum sound reduction, can have STC ratings of 70 or higher. Read more about the tools below How to Calculate the Glass STC - Free download as PDF File (. Address: 6301 N Florida Ave Tampa, FL 33604 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. Calculation Example: The Sound Transmission Class (STC) rating is a measure of how well a partition or other building element blocks sound. That’s where the STC rating comes into play. 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. SoundPro calculates glass usage by performance or glazing configuration. On the Mar 22, 2022 · The final STC rating of a room is a composite, not an individual component calculation. The rating covers the sound sources generated in building interiors Jan 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. Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. In general, a higher STC rating blocks more noise from transmitting through a partition. concrete, glass, steel) using graphical computation method based on the material thickness, density, and critical frequency values. An example of a window STC rating chart is as follows: 26-28 – single pane window; 26-32 – double pane window; 48-54 – soundproof window over a single pane window Sound transmission class (STC) ratings solve that problem by giving a single value to acoustical performance for a door. 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. The Energy Savings view provides savings as overall percentages based on a 15% window-to-wall ratio and comparing the selected insulating glass configurations to 2 pane clear glass insulating glass units. Glass size and glazing system will affect STC rating. Understanding STC ratings for drywall can be complex. Check with your framing system supplier for total window values. To get started, input your required performance data below. Product ratings are also essential. 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. That being said, anything below an STC rating of 40 might garner comments about paper thin walls. Insulation will noticeably improve the STC rating of an assembly. • As a guide when frames are included, the Rw values shown will decline. Actual values may vary due to production tolerances. Mar 6, 2018 · Phone: 888-815-9691. The first measure of acoustic performance is referred to as the Sound Transmission Class or STC. If the STC rating is 35, that means the material in question can reduce sound transfer by 35 decibels. Resilient channel can improve the STC rating of an assembly. STC STC rating (Sound Transmission Class rating) is a score given to a building’s surface (wall, ceiling, window, etc. 7 %µµµµ 1 0 obj >/Metadata 422 0 R/ViewerPreferences 423 0 R>> endobj 2 0 obj > endobj 3 0 obj >/ExtGState >/XObject >/ProcSet[/PDF/Text/ImageB/ImageC Windows significantly impact Sound Transmission Class (STC) ratings because they can either enhance or diminish the overall sound insulation of a building. What Is a Good STC Rating? An excellent rating is an STC of 60 or higher. It is a logarithmic scale and ranges from 18 to 50 for windows. A rating of 40 would likewise correlate with a volume reduction to approximately 1/16th of the original level (1/2)^4 = 1/16). To achieve these ratings and above, a dual window configuration with two sets of sash or a prime window with an exterior or interior storm panel The STC rating of a CMU wall can be estimated based on its weight using the following formula: STC = 0. QINGDAOMORNBUILDINGMATERIALSCO. The higher the STC rating, the better the sound 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. For windows, STC ratings range from 18 to 38. Mid Range STC 36 - 42. The higher the STC rating, the more sound will be dampened. Email: info@commercial-acoustics. Your go-to portal for discovering the perfect glazing solutions, tailored to your requirements. Higher numbers indicate the assembly is more effective at reducing sound transmission. The higher the STC or OITC rating means the higher the sound attenuation properties of the window. 060 P. 11F P. It’s like the cousin of CAC but focuses on walls instead of ceilings. In fact ex-act logarithmic calculated single number ratings are easier with current calculation means, than the old approach, which is much more complicated to put in simple formulae. 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. 1. The method of measuring the Rw coefficient is defined by the ISO 10140-1: 2016 standard. This calculator makes it easy for you to perform preliminary assessments of the Wind Load resistance of single glazed, annealed (not heat treated) window glass, with various edge support conditions, according to the ASTM E 1300 standard. 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. † Based on Stats Canada Report CS44-004-IN, April 2013 to provide conservative estimates of required STC or Rw ratings to be used by the building designer as a planning tool for window glazing. 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. 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. At JELD-WEN, for example, we –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. Compare the Mar 22, 2024 · The calculation of the Sound Transmission Class (STC) rating for glass involves rigorous laboratory testing conducted according to standardized procedures outlined by organizations such as the American Society for Testing and Materials (ASTM). However, the STC rating has been used much longer and is more widely recognized as the For simplification, we have segmented NanaWall sound-rated opening glass wall solutions into three categories. The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. OITC, on the other hand, covers a broader frequency range (80 to 4000 Hz), including lower frequencies often associated with external noise. Class (STC) rating. It is manufactured by permanently bonding two or more lites of glass with layers of polyvinyl butyral (PVB) interlayer, under heat and pressure, to create a single construction. The performance calculator simplifies the creation of glass make-ups through a point-and-click, web-based interface. Laminated & Double-Glaze Combinations. Acoustical Guide – Determining Minimum STC Rating Figure 1. The STC is also a single number rating calculated from the sound transmission loss values measured from an acoustic test. If we assume that a branch of the United States Government, The University of Minnesota, The Minnesota Housing Authority, prominent acoustical engineers and several manufacturers of acoustical products are correct, a change of “1 STC” is equivalent to a change in loudness of “1 dB”. Laboratory testing is used to measure the resistance of partitions such as walls, windows, or entry doors to the passage of sound. 10). Values are center of glass calculated using LBNL Window 7 per NFRC100 conditions. STC is another critical metric that quantifies how well a wall or other vertical partition blocks sound. When STC tests are performed, the TMS 0302 requires the testing to be in accordance with ASTM E90, Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements (ref. A typical STC rating chart will often include an example of materials with a given STC rating, and the sounds you can expect to hear given the STC rating. Generally, yes. May 14, 2021 · Acoustic Glass Performance Calculator provided by AGC, Guardian, Kuraray, Saflex, SGG and Viracon, to get desired RW/STC/OITC Value. 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. 9 mm) 1/2" 0. High STC rated windows are designed to minimize sound transmission by incorporating multiple layers of glass, specialized framing, and insulating materials that reduce noise from the outside. Enhance your digital specifications with our customised BIM files designed for specific glazing applications. 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. However, soundproof windows can have an STC rating of 48-54 or higher Jan 20, 2022 · What Is an STC Rating? The STC rating for walls refers to the “sound transmission class” of your foundation. 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. glass options • 6mm framed glass only • Tempered and Laminated • Clear, Frosted finishes. See additional notes below data for specific To determine the STC rating of a wall in a lab, they can test out frequencies from 125 Hz to 4000 Hz. The MTC Class is 100% based on an STC calculation, with the same reference The STC rating of a single lite can range from the high 20s to the mid-30s, with its score increasing with the thickness of the glass. 5. How SoundPro works. For example, the STC number provides a standardized way to compare products such as doors, windows, or wall panels made by competing manufacturers. Seals and Gasketing: Even the highest-rated door will perform poorly without effective Jun 15, 2024 · STC Ratings for Windows and Glass. g. Jul 31, 2022 · Glass doors can range from 28 to 60+ STC ratings, while steel and fiberglass doors range from 20 to 50. 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 Sound Insulation. B. 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. This gives some varied answers for sure, which is what is used as part of an average to give an official STC rating. 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. 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. Mecart’s standard acoustic products are labelled STC-35, STC-45 and STC-52. For instance, if you have an STC of 40 on one wall and decide to add another wall with an STC of 20, the STC of both walls combined will not be 60. Address: 6301 N Florida Ave Tampa, FL 33604 OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 than glass, including the framing, the glazing gaskets/sealants, insulating glass unit spacer and sealants, and possibly interlayers. Factors That Affect Your Glass STC Rating. Ther Rw is more common in Europe, when STC is more common in USA. Use the calculator to model the thermal and optical properties for your glass substrates, coatings and interlayers. As previously explained, this means they have been tested in a laboratory for their sound transmission loss. One US glass manufacturer who has Oct 10, 2024 · If the window has an STC rating of 30, the final STC with the addition of the blanket is not 65. ) based on its ability to reduce sound coming through it. Assemblies will be organized by STC value ranging from an STC of 40 to an STC of 57. * 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. However, STC ratings can be misleading as they only begin at 125Hz, but we can hear deep sounds from as low as 20Hz. A leader in tools for the glass industry. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. The difference in sound levels is used to calculate the STC rating. This rating is based on how much sound is blocked across a range of frequencies, usually from 125 Hz to 4,000 Hz. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. Sound Transmission Class (STC) rating. 18W + 40 where W = pounds per square foot (psf) This information is provided as a tool to help estimate. Argon fill is 90% and air fill is 100%. In this case select a value which is 3-4 Rw points above required total window value for Window STC Rating Chart. STC ratings are used for windows doors, walls & most building materials. Double-Glazed *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. Of course, the rating is determined as an average based on the different frequencies between 125 Hz to 4000 Hz. Performance calculator. Drywall between double studs can dramatically reduce the STC rating of an assembly. Instead, the STC will be calculated using logarithms, and will probably 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. Beyond the type of windows you select, other factors can affect the STC rating of your glass. *OITC is estimate d base d on this test. laminated glass n n 5/2011 S. Feb 19, 2024 · How is the STC Rating Determined? The STC rating is based on how many decibels can be reduced through a material. Understanding STC Source: STCratings. Adding additional layers of drywall can improve the STC rating of an assembly. Call: (360) 334-4107 glass constructions only. It’s important also to consider: Glass thickness: thicker glass typically provides better sound insulation than does thinner glass If you are unsure of what rating would work for your project, there are some standards you can go by in helping you to determine your target range. Oct 18, 2023 · Sound transmission class (STC) ratings and OITC ratings both rate the effectiveness of an assembly to attenuate airborne sound. Sound Transmission Class ratings. • The higher the Rw value the better the acoustic performance. 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. Performance targets are selected based on acoustic ratings, and results are revealed immediately. 29W b D3s trcQ C6 MKETIG@ [ ] Calculate the STC Rating: Let the calculator process the data and compute the STC rating. 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. 3 software and represents center of glass performance data. All performance data is calculated using LBNL Window 7. com. A sound reduction of 35 decibels is very high. Typically the material with the lowest resistance to the passage of sound has the greatest impact on a partition's STC value. Typical dual glazed windows can achieve better ratings of 25-27. 1/4" 41 41 Both Rw and STC describe the insulation against typical air noise. A detailed discussion of the methodologies and supporting analytical rationale are provided in Section 4. 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. Then easily create client-ready reports comparing glass options. *OITC is estimated based on this test. The Natio Dec 31, 2024 · Gaps or weaknesses in the frame can compromise the STC rating. The estimate could easily be off by as much as +/- 4 dB. You can’t add STC ratings together. † Based on Stats Canada Report CS44-004-IN, April 2013 If a wall has a rating of 35, it does not mean that the wall stops 35dB of sound. When planning glass wall systems, here’s a May 30, 2024 · STC is a widely recognized measure for sound insulation in windows and doors, focusing on human speech frequencies. txt) or read online for free. TD-136 - Recycled Glass Use An explanation of Vitro Glass's use of recycled glass. NWTL140828-03 STC 40 Assembly Components Finish material 1/ The Sound Transmission Class (STC) is a whole-number rating of how soundproof a door or window is. insulating glass units. 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. 52mm laminated glass is 39. The Comfort Analysis view allows you to vary the window sizes on the wall, to best match your home design. Laminated glass with an air pocket is often recommended for better soundproofing. STC 43 Assembly Components Finish material 5/8” Gypsum Size 3 5/8” Steel Stud Spacing 16” oc Product AFB Thickness 3. 0 This guide provides an introductory overview of glass concepts and terminology, plus Pilkington Wind Load Calculator. Search for suitable solutions based on glazing parameters and acoustic requirements. Password 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. V. Sound transmission class (STC) and Impact insulation class results are given as well as the following detail data at ⅓ octave band center frequency ranging from 125 Hz to 4000 Hz: TL / STC: Floor Layer Estimated Transmission Loss 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. The soundproofing rating for most standard homes is 33 STC, while soundproofing for studios must be at least 45 STC. Username. High Range STC 43 - 45. This performance data is not a commitment for Cardinal to produce. 2) for laboratory testing or ASTM E413, Standard Sep 30, 2010 · Sound Transmission Class (STC) / Rw Calculator This calculator determines Sound Transmission Class of monolithic materials (e. Laminated and double-glazed glass both hold STC ratings of 40, but anything higher typically requires a combination of the two. While STC and OITC ratings are published for various glass configurations, accurate ratings for the 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. Consider not only the STC rating but also door quality and construction. † Based on Stats Canada Report CS44-004-IN, April 2013 Sound Transmission Class (STC) Calculator Sound Transmission Class (STC) Calculator Select Wall Type: Wood Stud WallConcrete Block WallBrick WallDrywall Partition Wall Thickness (inches): Calculate STC Rating Sign in with your username and password. Costing more than other materials, this is used mainly for exterior applications. At this rating, you may be able to hear very loud sounds faintly, but most sounds you won’t hear at all. Sound Transmission Class (STC ) is an integer rating of how well a building partition attenuates airborne sound. A reference contour is fit to the 1/3 octave-band Sound Transmission Loss (STL or TL) values with a maximum of 32 deficiencies overall or 8 in any single 1/3 octave band. pdf), Text File (. STC ratings provide valuable information for homeowners by offering them better insight into the Laminating glass is a popular way to increase an STC rating. 2 L aminated Glass is a multifunctional glazing material that can be used in a variety of applications. Location 6601 NE 112th Court Vancouver, WA 98662. Technical Glass Guide Update 6/15/21 – Version 3. com Conclusion: A person cannot detect a change in loudness of +/- 1 dB (STC). Lower Range Up to STC 35. Dec 30, 2022 · How Is a Wall’s STC Rating Calculated? STC rating can be determined by employing the following STC calculation formula: Use an audiometer to record the decibel levels in the room containing the noise source. 5” Acoustics Assembly Number: ISS-02 STC: 43 OITC: 28 Report No. Glass Performance Calculator . The test results are available upon request. It’s important to • Glass STC ratings up to 46 STC • Solid STC ratings up to 48 STC • NRC ratings up to . *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. The computation logic is based on 1/4” (6mm) monolithic glass has an STC rating of 31 1/8” x . Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. The method of measuring the sound transmission class (STC) is defined by the ASTM E413-87 standard. Oct 20, 2024 · This calculator provides the calculation of Sound Transmission Loss (STL) for a given Sound Transmission Class (STC) rating and frequency. For example, MLV has an STC rating of around 27. 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. STC ratings allow to accurately compare noise reduction capabilities by using a single value for the acoustical performance of a door. mathematical point of view, taking the nowadays calculation means into account. Sep 17, 2018 · What we mean when we say STC-35, STC-45 and STC-52. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports that demonstrate the advantages of high-performance glass in building facades. 85 NRC . 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. CAC Calculating the STC Rating: The STC rating is calculated from a curve-fitting procedure defined by ASTM E413. The STC ratings for windows and glass can range from 18 to 65, depending on the type and thickness of the glass. A higher STC rating translates into more reduction in sound. UPDATED; TD-138 - Heat Treated Glass for Architectural The installed weight of concrete masonry assemblies can be determined in accordance with CMU-TEC-002-23 (ref. If only one or two types of frequencies are predominant in an area, the overall STC rating might not matter as much. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. This rating will give you an idea of how effective your chosen materials or construction methods are at reducing sound transmission. Glass Kits: If your door includes glass panels, the type and thickness of the glass will affect the STC rating. Laminated IG (laminated glass toward interior) Double-laminated IG (various) Reports are generated in Eastman format and serve as guidance only. To determine the specific STC ratings of glass and a Jul 5, 2023 · Thinner glass has a low STC rating because sound travels through it easily. These ratings, however • All values shown are glass only. Understanding STC Ratings for Drywall. Dec 22, 2022 · Double-glazed glass can also provide an STC rating of up to 40. Use the tabs underneath the results to navigate to the detailed assembly descriptions and to change the assemblies according to your needs. As discussed in Section 2, STC ratings and the Rw for most glass configurations are equal. Measure the sound in the neighboring room: Next, proceed to the adjacent room and note the number of transferred decibels. STC ratings are the ONLY way to accurately compare various noise reduction products. Mass pigmented and decorative interlayers can also be used to provide a wide range of effects. It is a non-linear scale. STC ratings are used for windows, doors, walls and most building materials. Address: 6301 N Florida Ave Tampa, FL 33604 Jul 4, 2024 · STC. May 19, 2023 · This article will explore the six variables that affect STC ratings in walls. Laminated Glass Applications A leader in tools for the glass industry. Our glazed partitioning systems are tested at a certified laboratory to ensure reliable STC ratings. Implementation of the appropriate rating system is important because OITC and STC ratings are not linearly related, and the achievement of a strong STC rating does not necessarily correlate with a similar OITC rating. 6. The ASTM E90 standard is used for measuring both, and the same types of products are rated using the same numerical rating scale. 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 Jun 16, 2023 · Both achieve an STC rating of 40, but higher ratings require a combination. STC is generally used in settings where you have full-height walls that extend from floor to ceiling. STC rating goes from 25 – 65. Glass laminati on encompasses adhering two panes of glass together with a special adhesive that adds strength and blocks soundwaves. components. Phone: 888-815-9691. Not all walls are the same, especially in terms of composition and material. byccaoi yosqe gbmokm utqg bse saj yixtc jtxeiez oxmog ikpx rxsva qbgmr xmnoi eyqdf fzcsyoy