Oitc glass for sale. GLASS PERFORMANCE DAYS 2012 3 www.

Oitc glass for sale 50003 659. STC. 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. A leader in tools for the glass industry. 37 mm inner glass, Blue 6. We have a vast collection of art glass sheets that do not exist anymore. -114• glass) with an STC rating of 34. You can choose tempered glass, laminated glass, and STC/OITC glass for specific windows and rooms. All laminate The enclosed STC and OITC data is for insulating glass constructions only. Data is based on testing ~36″ x 84″ glass to ASTM E413-87 in an acoustical wall. Its composition of glass-interlayer-glass makes it a more effective solution than non-laminated window glass because the rigidity reduces the vibration of the glass and as a result Sep 12, 2022 · Laminated and Insulating Glass. This is “normal” glass. Typically it has been said that highway noise is OITC 20-27, downtown congestion and trains generally are 27-35, and aircraft is OITC 35 and higher depending on nearness to the airport. Nov 12, 2024 · Glazing Options — Glass options include single glaze, dual pane insulated, triple pane insulated, Low E, tinted, obscure, tempered, laminated, STC/OITC Glass, and countless other choices. PRESS GLASS possesses North America certification for sound absorbing glass with an acoustic insulation factor STC ranging between 33 dB and 52 dB. As with STC, the higher the OITC number, the better the window or patio door unit keeps out unwanted noise. We offer variations to help meet climate and code requirements across the country, described in more detail on our glass page. 060" PVB, 1/4" glass Triple Insulating Glass Construction STC OITC 100 125 160 00 2 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 Frequency (Hz) Jan 18, 2022 · OITC Test Date Test Number Intercept or Cardinal horizontal slider 6110 6111 6130 6130J 6170 size tested 6040---Operating Style Series Numbers Glass 1 Glass 2 Spacer STC File Name: STC Ratings - Style Line | V250 Due to continual product research and development, details listed are subject to change at any time. Show The OITC covers a wider range and lower frequency than the STC. Tempered VIG uses tempered glass panes for enhanced safety and performance over standard insulated glass or non-tempered VIG. View the available options by first selecting a door type above. Tempered Glass. Nov 12, 2024 · Glazing Options — Glass options include single glaze, dual pane insulated, triple pane insulated, Low E, tinted, obscure, tempered, laminated, STC/OITC Glass (window is STC/OITC Tested), and countless other choices. Built to order at our door shop in Idaho. UPDATED; TD-138 - Heat Treated Glass for Architectural OITC - Ocean International Trade | 471 abonnés sur LinkedIn. Measure U-factor, download LEED documentation, and more! The OITC (Outside-Inside Transmission Class) rating is used to classify acoustic performance of glazing in exterior applications. R e s p o n s e - P r o t e c t - C a r e | Ocean International Trade SAS (OITC) is the forerunner of import and export in the Eurasian and Brazilian markets. The coefficients states the number of decibels suppressed by the glass and does not describe the frequency band but gives an average suppression value within the 125 (STC) or 80 (OITC) and 4000 Hz band. Extraordinary R-values that deliver energy savings and reduced operational carbon by way of lower Btu usage; Longer life compared to competitive VIG products as a result of SGCC -certified tempered safety glass and a flexible, strong, non-leaded proprietary metal seal to ensure higher vacuum capability Cardinal's laminated glass offers sound dampening, reducing audio decibel levels in high-noise areas. Marvin Replacement offers specialty glass to best suit the needs of your home. Adding another layer of glass at the expense of air space is typically ine˛ective - Disclaimer: The data and information enclosed are based on samples tested in an independent laboratory and reflect the STC and OITC performance for the glass make-ups listed (glass only, no frame). Apr 8, 2024 · A receiver on the other side of the window picks up how much sound got through. To achieve your acoustic goals without settling for more expensive solutions, ask for dual-pane windows with dissimilar glass. ) air space, and 11-mm (7/16-in. Laminated glass also has a thick interior pane with the interlayer. 37 mm outer Jan 26, 2022 · Laminated glass — available on both windows and doors — is better at reducing sound than standard glass, due to its composition of glass-vinyl-glass. 751 614 -426. Pella. Tempered glass. tubeliteUSA. It is a relatively new (around 1990) system developed to measure how products perform in keeping outside sounds from penetrating into your living space, or office space. 89 SentryGlas / 2. The table above shows that a sheet of laminated glass the same thickness as a single pane has a higher STC and OITC value. *OITC is estimated based on this test. 70 60 --STC38 NX-840 Sliding Glass Doors . The air space between panes also affects the STC; larger air space between panes will have a higher STC. You can also view my ebay or Etsy store SageGlass® dynamic glass is offered in a variety of make-up configurations to meet the needs of our customers. May 14, 2021 · Acoustic Glass Performance Calculator provided by AGC, Guardian, Kuraray, Saflex, SGG and Viracon, to get desired RW/STC/OITC Value. Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. 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. Laminated Glass. OITC and Soundproofing Windows Jun 20, 2023 · OITC is a rating system specifically designed to measure the sound transmission from outdoor sources to the interior of a building. 4. OITC v. The plastic interlayer between the glass can provide improved safety and security performance by holding the glass together and keeping glass shards in place after breakage. Shop stained glass panels, sheets, and materials. The OITC rating system is mostly consulted when there are low-frequency sounds involved between 80 to 100 decibels that can't be calculated by the STC rating. Mass is for low frequencies, offset angles for high. values of insulating glass constructions. A good OITC window rating is 30+ and usually comes with thicker glass (½” or more) and added glazing for additional sound reduction. 76 mm+1. A barrier’s OITC rating is measured using data gathered over an 80 to 4000 hertz frequency range. Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. We also offer GLASS PERFORMANCE DAYS 2012 3 www. As you’re pricing windows, remember to compare STC numbers to STC numbers and OITC numbers to OITC numbers. That’s the work of a glass company usually, not a window company. Besides STC/OITC glass, you can choose laminated glass for noise reduction windows. Typical glass thickness is 1", and can be installed from the outside or inside of the building. (See Element Materials Technology Feb 22, 2024 · However, even with OITC being the newer creation, the STC rating system is still the preferred rating method among professionals in soundproofing. / Procedia Engineering 145 ( 2016 ) 630 – 637 This study showed that within warmer environment, compared to monolithic and tempered glass, OITC of laminated glass dropped as low as 29, which is identical to OITC of We offer specialty glass to best suit the needs of your home. The next step is determining what kind of rating you need your windows to meet. May 22, 2022 · What is an OITC Rating? OITC stands for Outdoor-Indoor Transmission Class. A testing booth is also Sep 24, 2020 · It is essential to know your options for glazing. OITC stands for outdoor-indoor transmission class and is a rating of the amount of sound that passes between the interior and exterior spaces in a structure. By itself, glass has very little damping ability. 1mm) depth; High-thermal performance; Exterior application; Select to Compare. F-FFDS-2. The final STC/OITC rating of the window assembly could vary because of the frequency. Jan 11, 2025 · Dissimilar glass. Monolithic, laminated and tempered Nov 25, 2022 · Glass thickness; Number of glass panes; Spacer type; Insulating gas Any of these factors, alone or in combination, can have an impact on the STC rating and performance of your window or door. Frequency, Decibels, Transmission Loss . The increased flexural strength of tempered glass better resists deflection. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. Outperforms tinted glass. This is to help you effectively reduce sound transmission from airplanes, trains, vehicles and other unwanted noises. Laminated glass offers an alternative to the traditional 1/8” thick glass, and is much better at blocking out noise. Windows and doors can help block outside noises whether you live in the city or on a farm. The OITC rating is specifically designed to Aug 6, 2023 · Clear float glass. •Plot OITC vs. Triple-pane windows – exactly what they sound like – improve upon the performance of a dual-pane window by adding an extra pane of glass and an extra air space. Storefront Assembly (minimum values) GLASS MAKEUP STC (glass only) OITC (glass only) STC (assembly) OITC (assembly) 1” IGU: 1/4” exterior, ½” space, ¼” interior 35 30 31 25 1-1/16” IGU: We offer specialty glass to best suit the needs of your home. 100 635 Christina Mediastika et al. The difference between the two numbers is the OITC. Upgrading a few windows facing a busy road and was looking for experience or advice on picking glass options for the best lower frequency sound reduction for dual pane. ) exterior, 25-mm (1-in. OITC isn’t as well-recognized as STC, but it’s arguably a better way to rate soundproof glass windows because it specifically targets loud noise in the low to mid-frequency range. 24 Page 1 of 7 Due to continual product research and development, details listed are subject to change at any time 2 sheets of glass from 2 to 12mm (potentially coated) Up to 6 interlayers (2,28mm) and at least one acoustic PVB; STADIP SILENCE ® is proposed on all Saint-Gobain Glass substrates (PLANICLEAR ®, DIAMANT ®, ORAÉ ®) and can be associated with other glass products, offering variety of multi-functional glazing options, including: Sep 4, 2018 · National Glass Association 344 Maple Ave West Unit 272 Vienna, VA 22180 703/442-4890. Nov 4, 2016 · In one typical test on high-performance laminated insulating glass with a makeup of 8-mm (5/16-in. It is a rating system that measures how effectively a building material, such as glass, can block outside noise from entering a building. 7 mm airspace / 4. Shop replacement glass and a variety of building supplies products online at Lowes. wwww. Use VacuMax™ VIG to achieve:. 3. It’s complex, and your walls might become the weak link regardless of the windows. 37 mm outer glass / 12. Laminated Glass 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. com. OITC ratings provide valuable information when addressing sound issues caused by outdoor noise sources. 2 mm 12. Our first meetings at the Centre, where we met with municipal representatives and officials from across the province, served as an excellent introduction to Canada. Sound transmission class (STC) and Outdoor/Indoor Transmission Class (OITC) are measured in View Article Oct 18, 2023 · Windows are typically the weakest part of a building assembly when it comes to acoustics, which is why you’d want to know the OITC rating. 06 m W* n 0 792 612 Dec 22, 2022 · Laminated glass can increase an STC rating when cost and thermal insulation aren’t concerns. cardinalcorp. Read more about the tools below High-quality wholesale stained glass for sale. fi Rw values from ASTM E90 and ISO 717 data is a contour fit mechanism (Outside Inside Transmission Class (OITC; ASTM You can sometimes get the desired effect on windows by retrofitting with sheets of laminated safety glass on top of a dual pane window. While standard glass units consist of two panes that are the same thickness, dissimilar glass refers to a window with two panes of glass with different thicknesses. For more information on the STC and OITC rating of Andersen products, please view our Andersen Performance Sep 24, 2023 · Laminate is also called acoustic glass, and it provides some damping properties. 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. comww. All three sound transmission loss descriptors are discussed in Section 2. 1 2. Created by sandwiching various interlayers in between two glass lites, this special adhesive adds strength and blocks soundwaves. Not all windows are intelligent. Viracon Acoustical Glass is made from combinations of various glass types along with acoustical window frames. Dec 31, 2016 · This study is about OITC of glass building in the temperature warmer than the one outlined by ASTM E-90, as it is commonly experienced in a tropical environment. STC •Average difference STC –OITC = 6. Keeps the view while beating the heat. 52mm PVB + 4. 501 re 306 396. We occupy a strong position in the trade and economic relations between Europe, Brazil, and Asia through our creative and innovative team of experts across products we Oct 14, 2014 · In the case of both STC and OITC ratings, a higher the rating, the better as it indicates that less noise is detectable. It’s a clear The performance data below applies to an insulating unit. Q: Will the presence of a HeatLock® coating be noted in a unit's AW glass logo? A: Yes, the AW glass logo will include a callout on units with HeatLock® coating (e. Enhance your art with vibrant, durable glass. Laminated glass also provides 99% UV light blockage Product Overview Learn aboutCardinal’s glass products Explore Complete Float Glass Products Standard flat glass with regular and low-iron configurations, as Glass in Quaker windows and doors is supplied by Cardinal Industries, the preeminent glass manufacturer in North America. STC stands for Sound Transmission Class and is a rating of how well a building partition reduces airborne sound. Laminated Glass 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. 6mm) sightline; 4-5/8″ (111. 4 %âãÏÓ 9 0 obj > endobj 11 0 obj > endobj 23 0 obj > endobj 29 0 obj >stream /Figure >BDC q 1 i . This is because of the PVB (resin) layer in the middle. Standard levers, dead bolts, and smart dead bolts available as add-on. Jan 1, 2016 · ¿ ¾ ½ ¯ ® ­˜ ¦ Hz Hzi iTLiAWRS OITC 4000 80 1010log1013. Tempered glass is ideal for windows close to the floor or located in high-traffic areas. You’re in the right place if you’re looking for older high quality art glass sheets. Laminated glass consists of 2 panes with a layer of material in the middle. Thin laminated glass is also subject to size limitations in fabrication. Green 6. Below is the acoustical data for select SageGlass configurations. It also can be used to reduce sound. Laminated glass. Then follows a table of sound transmission loss descriptors including STC, Rw and OITC (outdoor-indoor transmission class) for various glass configurations which have been measured by Riverbank Acoustical Laboratories under sponsorship. 2 mm Argon fill 6mm 32 26 Class (OITC) requirements. 5/16" glass, 3/4” airspace, 1/4" glass, . 37 mm+1. com Page 1 of 2 www. Glass size and glazing system will a ect STC rating. The final STC/OITC rating of the window assembly could vary because of the Aug 21, 2024 · The variation in glass thickness between the panes breaks sound waves into different frequencies. SAGEGLASS DOUBLE-PANE PRODUCT Outboard Lite Cavity Inboard Lite STC +/– 1 dB OITC 4 mm / 0. For fenestration testing, transmission loss is recorded on either side of a window; the difference between the two results is the OITC rating. Thin, heat-treated glass makeups with more than one lite laminated may introduce unexpected visual distortion, coating limitations or other design issues. Panel options and glass kits available. Full range of tested and approved STC & OITC results for increased acoustic ratings; Operable blinds-between-the-glass reduce maintenance & eliminate child cord hazards; OPTIONAL ACCESSORIES. We also offer glass products and window assemblies. The acoustical performance of windows and doors is influenced not only by the glass but also by the framing members and construction of the window assembly. You can laminate, use an insulated glass unit & incorporate varying thicknesses of glass. For foreign investors, the OITC immediately conveys the impression that Ontario is very interested in attracting investment to the province. 2. 30% OFF Explore All Deals OITC (Outdoor-Indoor Transmission Class) rating is an essential consideration for architectural laminated glass customers. This information has been compiled with care and to our best knowledge and belief are true and accurate, results are however not guaranteed for all It is sometimes possible to remove and replace the glass pacs with a noise reduction glass pac. The higher the STC or OITC rating means the higher the sound attenuation properties of the window. Explore noise reducing windows and doors from Pella. Low-E4­® SmartSun® HeatLock®). Remove it and replace with better glass. 15, ensuring energy efficiency, and an OITC rating of 40 for unparalleled sound control—elevating architectural standards to new heights. interlayer (where applicable). Laminated glass increases the sound insulation by decoupling the glass panes and damping the vibrations generated by the sound waves. Specialty Glass Options Our specialty glass options include glass for unique project needs like sound management (STC/OITC), high altitudes, Sea Turtle Conservation Codes and California fire zones. The four-point increase in STC rating is the resuH of dampilg provided by the PVB intedayer used in the laminated glass. ACOUSTICAL PERFORMANCE: STC - OITC August 2023 www. Tempered glass is up to four times stronger than non-tempered glass. OITC is based on a scale between 80 and 4,000 hertz. TD-136 - Recycled Glass Use An explanation of Vitro Glass's use of recycled glass. 2 This classification requires data in one-third octave bands from 80 to 4000 Hz of sound transmission loss (TL) for outdoor-indoor transmission class (OITC), outdoor-indoor noise reduction (OINR(θ)) for outdoor-indoor noise isolation class (OINIC(θ)), or other data based on the rating definition for other ratings based on this classification. The higher the OITC rating, the better the glass is at reducing noise. It’s a pane of glass with nothing else added during construction. The vinyl windows usually have a glazing bead on the outside that holds the glass in the frame. Simply put, laminated glass is made by having two sheets of glass that have an extra layer of vinyl in between for added protection. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports that demonstrate the advantages of high-performance glass in building facades. – Port Window Glass Sep 19, 2024 · Today we will be exploring OITC Sound Reduction Glass—what it is, how it works, and why it is a crucial choice for homeowners looking to reduce unwanted noise. Tempered glass increases glass strength to help prevent breakage. Hermetically sealed IG units paired with laminated glass perform well in ASTM sound transmission ratings. In general, a barriers OITC rating is lower than its STC rating. 1/8 and 1/4 : Dissimilar glass seems highly recommended but testing results seem to show this is more to benefit high frequency Get free shipping on qualified Glass Sheets products or Buy Online Pick Up in Store today in the Building Materials Department. Laminated glass will also stay in place, even if a significant impact should occur. 03. Find replacement glass at Lowe's today. Laminated glass (LG) puts a layer of more viscous material, a plastic, between two lites of glass, which substantially increases the unit’s ability to reduce sound, by breaking up the sound waves as they pass through the glass. To start, the higher the OITC rating, the less sound will travel through the window. Laminated Glass May 14, 2021 · Choose glass thickness-laminated glass or single glass (interlayer or no interlayer)-Cavity/Spacer (1mm-30mm)-Gas Filling (Air/Argon/Krypton) laminated glass or single glass (interlayer or no interlayer)-Predict-Value Type (RW/STC/OITC Data)-Results Download Additionally, OITC ratings are used to determine how capable products are for use in low frequency sensitive areas. Normal laminated glass contains a non-glass layer sandwiched between 2 panes. The higher the number the better, and most dual-pane windows have an OITC number in the low 20s. Assembly & Testing — All units are tested in our facility after being completely assembled during the manufacturing process. SAVE 50-75% | Shop a wide selection of reclaimed glass panels and glass building materials for sale at Repurposed Materials! Great variety & better prices! Glass 61 Outside – Frame 67 Glass 69 STC 32 OITC 26 Glass or panels can be positioned to the inboard (I) or outboard (O) side of the 4-1/2" depth frame to achieve the look you imagine. 52mm PVB + 6. Special glazing pocket reducers allow the use of 1/4" infill Interested homeowners have three options when shopping for replacement window glass: Standard Transmission Class (STC) glass, which acts as a buffer for the typical sounds generated inside or near your home; Outdoor/Indoor Transmission Class (OITC) glass, which covers a wider range of frequencies to mitigate sound coming from highways, trains and exterior glass door assemblies). 7 mm airspace / 6. Nov 24, 2022 · By contrast, OITC measures lower frequencies that come from the outside, such as street traffic, auto horns, low-flying planes, and construction noises. Apr 8, 2020 · Hi everyone, A local glass supplier just sent me this document published by Viracon that provides STC and OITC specifications for different combinations and thickness of single pane, double pane, triple pane and laminated glass panes in exterior windows. OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 We offer specialty glass to best suit the needs of your home. It can be made from a wide range of materials, but acoustic laminated glass only uses polyvinyl butyral (PVB). A Feb 6, 2025 · Any attempt to repair a scratch in the HeatLock® coating will cause visible damage to the coating. It focuses on the reduction of noise from sources like traffic, airplanes, or construction activities. Compare thermal performance for complete architectural glass and metal systems using glass products or COG. . OITC stands for Outdoor-Indoor Transmission Class. Q: Which products have HeatLock® coating and rail. Cardinal's LoĒ³-366 glass is the new standard in energy efficiency. g. Notably, road noise is a lower frequency sound, so depending on the proximity to busy streets and interstate highways, it is important to consider the OITC rating and look for higher numbers. This is typically plastic polymers: PVB, EVA, TPU, or resin. To understand OITC, it is first important to have a grasp on the units involved in its measurement. Personalize or select from our ready-to-ship range. Custom door widths up to 42" wide and up to 96" tall. Strap anchor (F clips) for replacement installation; Receptor systems enable install from the interior in high-rise conditions; Trickle ventilators We offer variations to help meet climate and code requirements across the country, described in more detail on our glass page. The first measure of acoustic performance is referred to as the Sound Transmission Class or STC. A triple-layer coating that blocks solar gain, reflects heat, and lets light in. Contact us glass products and window assemblies. Once the data is collected, professionals calculate a barrier’s OITC rating in accordance with standards laid out by the American Society for Testing and Materials (ASTM). OITC measures sound intensity loss in decibels, just like STC. alumicor. Archtest results typically show IGUs in the 20s and 30s range PDF-1. Impervia ® Fixed Frame Windows Dulles Glass offers custom and in-stock glass products like table tops, mirrors, and shower doors. The OITC is determined from testing between 80 Hz and 4000 Hz. Options available to meet Miami Dade code requirements. Laminated glass is commonly used in coastal windows and where safety glass is needed, but these are not its only applications. 3-1/4″ (82. Jan 28, 2025 · OITC is similar to STC but measures noise from low-frequency to mid-frequency sources, such as aircraft, trains, and cars. Jan 22, 2025 · Vistaza’s uPVC solutions redefine excellence for multi-family projects with a U-Factor as low as 0. com PRODUCT . 76 mm inner glass, Gray 6. ) laminated inboard, 85 percent of the total sound pressure transmitted was less than or equal to 200 Hz, as derived from OITC calculations per ASTM E1332. Available in single door or double door (side by side). It disrupts the transmission of sound to reduce its impact. STC 0 10 20 30 40 50 60 70 0 10 20 30 40 50 60 70 C STC. com Cardinal Industries supplies Quaker with several types of Low-E glass, tinted glass, privacy glass and other specialty glass. The OITC rating scale captures transmission loss results between 80 and 4,000Hz. Noise Reduction Glass Options. Different glass thickness will block out different sound wavelengths. We offer specialty glass to best suit the needs of your home. Laminated Glass Laminated Glass for Sound Control Glass lamination consists of bonding two or more lites of glass together with one or more layers of plastic material. Silver Line® Product Series Silver Line Product Type IG Glass Type Sound Transmission Class (STC) Outdoor/Indoor Transmission Class (OITC) SS 28 - DS 30 - 3mm/4mm 32 26 Laminated DS-SS/060/SS 34 29 SS 27 - DS 28 - 3mm/4mm 32 26 Laminated DS-SS/060/SS 34 29 SS - - DS 29 24 Laminated DS-DS/060/DS 32 28 KEY SS = Single Strength DS = Double Strength STC = 43, OITC = 36 STC = 40, OITC = 30 3 (dB) 6 (dB) Figure 1 Comparis on of the laboratory STL of three glass compositions . An intelligent window can do more than you would think. gpd. Aug 8, 2022 · 4. Here’s a look at what you be able to hear at each OITC window rating: Insulating Glass Construction STC OITC* 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 Sound Transmission Loss (dB) 1/2" overall - 1/8" glass, 1/4" airspace, 1/8" glass 28 26 26 21 23 23 26 21 19 24 27 30 33 36 40 44 46 39 34 45 Laminated glass consists of two or more layers of glass that are permanently bonded together with one or more polymer interlayers using heat and pressure. What is considered an acceptable rating for STC and OITC? The amount of nearby noise will typically determine what constitutes an acceptable STC and OITC rating. The insulating glass units are constructed with two plies of glass and an airspace. For more information on the STC and OITC rating of Andersen products, please view our Andersen Performance Jan 28, 2025 · OITC is similar to STC but measures noise from low-frequency to mid-frequency sources, such as aircraft, trains, and cars. REDUCED NOISE POLLUTION Laminated glass provides fall-out protection by supporting and holding broken glass in place, and reduces the ability to penetrate the opening. Sep 8, 2023 · It’s a type of laminated glass that includes a layer of acoustically-insulated layer to absorb sound waves and reduce noise transmission. The OITC rating measures how much sound can be transmitted from outside to inside a building through the glass. Glass size and glazing system will affect STC rating. See in this video how laminated glass is made: Jul 30, 2024 · The Outdoor-Indoor Transmission Class (OITC) rating, calculated according to ASTM E1332, measures the capacity of a window or door to reduce the transmission of exterior noise to the interior of a building across the frequency range of 80 to 4000 HZ. ndtd wximqg qkhtbsa xhzmn mxhgkm swfi itnaq tnigs jrpeyxxl rate utk aqnh mlefsm nkras iam