Oitc glass stc rating. It made the windows heavier—was fun hefting .

Oitc glass stc rating 7 mm airspace / 4. For comparison purposes, a single pane of glass typically has an STC rating of 27, and a soundproof window over a dual-pane window can achieve an STC rating of 48. Jul 28, 2004 · The Sound Transmission Class (STC) method assigns a single number rating to measured Sound Transmission Loss (TL) data obtained in accordance with ASTM E-90. The glass to interior ratings, when tested to ASTM E1425 and ASTM E90, shall not be less than STC 38 and OITC 30. 3 glass of 3 mm 32 mm [1¼''] 30 25 I. 24 mm) 1/8" 0. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. The OITC (Outdoor-Indoor Transmission Class) was calculated in accordance with ASTM E 1332. Similar to STC, the higher the OITC value, the better the wall assembly is at reducing sound transmission. It made the windows heavier—was fun hefting As the table shows, a single pane 1/4” annealed curtain wall window has a STC rating of only 31 and an OITC rating of 28. STC rating. Ensuring your building meets the proper project and building code requirements for STC, OITC, and IIC sound ratings can ensure that your building's space offers an environment that will be comfortable for occupants and not generate complaints. The same applies to soundproof windows with double laminated panes rated at an STC of 42; they drop to 33 on the OITC scale. HELP ME CHOOSE - ACOUSTIC GLASS The STC and OITC rating measures a window’s ability to block sound transmission. (see Table 5-15). Mar 29, 2018 · As discussed in Section 2, STC ratings and the Rw for most glass configurations are equal. Jan 13, 2025 · Cardinal's laminated glass offers sound dampening, reducing audio decibel levels in high-noise areas. It was created to provide a single number rating for Mar 30, 2023 · An STC rating of 45 is really where we get into the world of soundproofing and privacy. Apr 12, 2021 · the rating, and Table 3 shows an example worksheet for calculating OITC. Glass Thickness. glass fi ber panel, 8-in. Oct 14, 2014 · When a third panel is placed behind an insulated glazed unit (IGU), Archtest shows values up to 46 STC. Both STC and OITC ratings inform your window or door selection based on sound insulation STC-upgraded glass. Number of glass lites. The higher the STC rating, the more efficient the construction Aug 8, 2022 · 4. Sep 8, 2023 · However, the addition of a second pane of normal glass improves the STC performance compared to single-pane glass. 47-1/2" x 59 with grilles-between-the-glass PEL-N-104-01143-00004 0. 0 GLASS PERFORMANCE STC (Sound Transmission Class) and OITC (Outdoor-Indoor Transmission Class), and their appropriate use. The door assemblies shall be tested in accordance with ASTM E 90. This rating is especially Oct 10, 2019 · In terms of reducing sound transmission, the higher the STC or OITC rating number, the better the product. Product Type Model IG Glass Type Sound Transmission Class (STC) Outdoor/Indoor Transmission Class (OITC) SS 25 21 DS 26 21 TS/DS (5mm/3mm) 32 27 Laminated 32 28 SS 24 20 DS 25 20 TS/DS (5mm/3mm) 30 25 Laminated 31 25 SS 24 20 DS 27 22 TS/DS (5mm/3mm) 30 26 Laminated 31 27 SS 23 20 DS 27 22 TS/DS (5mm/3mm) 30 25 Laminated 32 26 SS 23 Glass . STC Ratings. The code language is as follows. Examples would be a 100 Series window with STC upgrade or a 400 Series window with Jan 31, 2023 · glass constructions only. In order to comply with the Acoustical Control measure, employ building assemblies and components with Sound Transmission Class (STC) values ucts, there are typical ranges of STC & OITC ratings based on the glazing make-up. Interior. Third . When a person speaks, a car passes by or a glass is dropped to the floor, vibrations from the vocal cords, running engine or glass impacting the tile respectively, are set into motion in the surrounding air. This rating increases to STC 42-45 with steel studs. This is very similar to dropping a rock into a calm lake. Sound transmission loss tests are in accordance with ASTM E90. Sound Transmission Class (STC) is a single-number rating of the airborne sound transmission loss (TL) performance of a constructed assembly measured at standard one-third octave band frequencies. If sound reduction is a priority, look for a window in the 30-35 STC range. *=testing incomplete as November, 2022 OA Glass 1 Glass 2 Acoustical Ratings - Ultra I C650 updated 04. size tested 6040. One US glass manufacturer who has Jul 25, 2023 · components. 32 : Reference should be made to Intertek-ATI Report No. File Name: Rev: 8. The method compares a family of numbered contours with one-third octave band TL data covering the one-third octave bands from 125 Hz to 4000 Hz, inclusive. double slider. What is a good OITC rating for windows? So, OITC is the ideal measurement for Peerless acoustic windows & doors. 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. Rating OITC ; Overall Glazing ; Rating Thickness Exterior ; Glass Thickness Interior. Glass 2 STC; OITC. 8125. Fiberglass R-13 Unfaced. The May 14, 2021 · Simply type into an acoustic value we need, the system list all the matched compositions. Someone in a quiet room on the other side may be able to hear that a Jul 5, 2024 · the STC value, the better a construction reduces the transmission of sound. To obtain the Sound Transmission Class (STC), read the TL of the contour curve at 500 Hz. This could be considered a baseline when you are getting serious about preventing sound transmission. Revised: 8. NWTL140828-03 STC 40 Assembly Components Finish material 1/ 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. Similarly, a Test Results: The STC (Sound Transmission Class) rating was calculated in accordance with ASTM E 413. (OITC)" r atings are for individual units based on independent tests and represent entire unit. Outdoor-Indoor Transmission Class (OITC) Recently, a new single-number rating has Sep 24, 2023 · Materials are given an STC rating in a lab testing environment, where sound waves are measured at different frequencies on both sides of the material. File Name: STC Ratings Series Numbers Glass 1; Glass 2 STC; EWR. Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. This data is accurate as of October 2018. The STC and OITC ratings shall be calculated in accordance with ASTM E 413 and E 1332, respectively. STC ratings are predominantly used in the United States. 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. A reference contour is fit to the 1/3 octave-band Sound Transmission Loss (STL or TL) values with a maximum of 32 STC. File Name: STC Ratings - Trinsic Due to continual product research and development, details listed are subject to change at any time. Here’s a chart to give some examples, taken from General The amount of noise Quaker Residential windows prevent from reaching your ears is measured and published to help you decide which of our glass packages is right for your needs. By comparison, a ¼” laminated glass has an STC rating of ~34 dB. Final file including Rw, OITC, STC, and Oct 18, 2023 · Sound transmission class (STC) ratings and OITC ratings both rate the effectiveness of an assembly to attenuate airborne sound. Glass size and glazing system will affect STC rating. 1/8 Sound transmission class (STC) measured in decibels Sound Transmission Class (STC) - The STC rating is a (dB) is the standard method for rating sound attenuation single number value quantifying the ability of a material to characteristics of glass products and window assemblies. It is a relatively new (around 1990) system developed to measure how products perform in keeping outside sounds from penetrating Like the STC rating System, OITC measures sound intensity loss in decibels. Refers to a window manufactured by Soundproof Windows, Inc. 18 by K. In our recent tests, an annealed IGU was used as the primary window and was tested. Flanking limit tests and Which gets me an STC rating of 45 for the windows. tubeliteinc. They are defined as single number ratings that are calculated using values of sound transmission loss (TL), providing an estimate of the performance of a product. While both are effective, it’s important to apply ratings to the right scenarios to provide the highest level of occupant comfort: An STC rating is often sufficient for a project that is soundproofing walls between offices Rw is the alternative to STC and used by most of the world. . On the other hand, someone in a nearby office building may only register 80 dB due to the 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 Feb 16, 2024 · Andersen collects certain categories of personal information. Dec 31, 2016 · The glasses were tested for their sound transmission class (STC) and outdoor indoor transmission class (OITC). When it comes to age, STC is much older than OITC. Test Date; Test Number 8120 8130 8170. Pim Foam or Dura**** 1/8 1/8 - 29 25 04/21/99 TL99-156 1/8 3/16 OITC Test Date Test Number Intercept or Cardinal-- - Operating Style Series Number Glass 1 Glass 2 Spacer STC File Name: STC Ratings - Aluminum | A150 Due to continual product research and development, These ratings are all single numbers used for comparison of various assemblies. Green 6. How much noise reduction should I expect you’d want to select a window that meets STC 45 / OITC 35 (1/8th inch is standard). As you can see, an increase in thickness translates to an increase of STC and OITC ratings. The chart below summarizes Halio’s STC and OITC ratings. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time Aug 21, 2024 · STC ratings range from 0 to 100. Comparable glass-only acoustic data was available for 26 of the 80 acoustic test reports found in Aug 25, 2021 · STC Ratings Updated: 08/19/2021 by K. You Sep 14, 2021 · Conduct These Three Sound Ratings. We also offer laminated glass on certain products that’s designed specifically for hurricane zones. [Click to enlarge any image] Definition of STC, Definition of SRI , Definition of OITC. A typical window has an STC rating of 25 to 30. Trinsic Windows and Doors. STC ratings have been determined from TL data using ASTME413 Laboratory measured STC and OITC ratings for various glass configurations. 01-113-11 for complete test OITC Rating . STC: This system has grown to be the most used and recognized method of comparing acoustic performance of building products in the Dec 22, 2022 · Double-glazed glass can also provide an STC rating of up to 40. 030 P. Apr 25, 2024 · The higher the STC rating, the better the glass is at reducing noise transmission through walls and partitions. OITC has replaced STC for comparing glazing materials. This is different from the rating of that same glass once included into a window frame. The higher the STC rating, the more efficient the construction OITC differs from the STC rating in that the OITC was developed specifi cally to indicate transmission of noise from transportation sources. OITC v. 4. The figures in Column 3 for theA-weighting adjustments are taken from ANSI S1. PEL-N-104 Sound Transmission Class (STC) is a measure for rating the performance of a wall system as a barrier to airborne sound transmission between adjacent closed spaces such as offices. Fiberglass R-15 Unfaced. Overall Glazing Thickness: Exterior Glass Thickness. Halio (1) Glass 1; Glass 2 STC; EWR OITC; Test Number horizontal slider; single hung picture window (slider frame) 6310 6311 6331 6331J 6370. 1/8" 35 35 ZONA stc_rating_chart Author: Madalyn Mufson Created Date: Aug 14, 2017 · fication system that would address more of the low frequency incident sounds. 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. It is a non-linear scale. G. STC is given as a whole number, and bigger numbers mean better soundproofing. 01-113-11 for complete test specimen description. There is no way to convert from OITC to STC (or vice versa), without access to the underlying TL data. Air Space Secondary Window Glazing (Storm Window) STC Rating Range OITC Rating Range 1/8” annealed (DSB) + 1/8” annealed (DSB) 1/2” None 27-28 23-24 STC Example : ¼” Monolithic glass has an STC of ~31dB. As with any design issue, it is critical to establish the Oct 31, 2024 · The enclosed STC and OITC data is for insulating glass constructions only. 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. 4 The low frequency measurements of sound transmission loss can be affected by the test specimen size or the specimen edge restraints, or both, particularly for small modular specimens such as doors or windows. txt) or view presentation slides online. Operating Style. 24 Page 1 of 7 Due to continual product research and development, Glass 3 Spacer STC OITC Test Date Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 1/8 1/8 - x <-- 30 24 11/09/23 TL23-432 Just as STC ratings are measured, OITC is determined based on the sound intensity lost through a barrier and captured in decibels. STC ratings are used for windows, doors, walls and most building materials. 13. RAL-TL06-199 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. Spacer type Nov 4, 2016 · The OITC rating was devised to more accurately quantify the amount of a reference exterior sound signal attenuated by a given partition. Sound transmission class (STC) and Outdoor/Indoor Transmission Class (OITC) May 14, 2021 · E413-87 in an ac oust ical wall. Th ose ranges, along with the glazing to achieve them, are as follows: I. 58: 44. 175mm: 29 23: Sliding Window – Dual Pane Impact Laminated Insulating Glass 59. Ratings achieved at that size are representative of all sizes of the same Tested. OITC Rating . Other ratings may be computed using the same worksheet subsituting the appropriate data for the rating instead of the sound transmission loss. Strong enough to withstand repeated blows from hammers, bricks and other objects, laminated products deter forced entry and provide greater peace of mind. 0 BASIC ACOUSTICS 1. 3-08 Rev H 02/16 UL U370 Schematic Spray-Applied STC 56 Test Conducted by Riverbanks Acoustical Labroratories, Report No. size tested. STC ratings for sound-reducing windows begin at about 32. Due to ongoing product changes, updated test results or new industry standards or requirements, this data may change over time. STC (Sound Transmission Class) STC is a rating system that measures how well a building partition attenuates airborne sou Type STC OITC: Panel Doors: 29 27: Doors with Glass: 30 28: Doors with Mirror : 34 31 Type STC OITC: Fir 6-Panel: 30 28: Hemlock 6-Panel: 27 26: Hemlock Full Lite: 31 27: Meranti 3/4 Lite: actual rating could vary. Ask for our extensive test reports (over 40) Graham's acoustic windows and sliding glass and terrace doors meet STC and OITC requirements. with double laminated glass The STC measurement has been around since 1961, so for a long time, that was the only rating to measure how windows performed acoustically, in 1990 the OITC measurement came about as a way to rate outside noise. 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. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. resist the transmission of sound. UPDATED; TD-138 - Heat Treated Glass for Architectural Sep 21, 2018 · When looking at STC ratings for windows and doors be aware that the glass manufacturers publish values for the glass they produce. There is no dependable way to adjust these glass numbers to reliably predict whole window performance. Glass 3 Spacer STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Style Line I V250 updated 04. Laminated & Double-Glaze Combinations. Pim Foam or Dura**** 1/8 1/8 - 29 OITC Test Date Test Number Intercept or Cardinal horizontal slider 8120 8130 8170 size tested 6040-- - Operating Style Series Numbers Glass 1 Glass 2 Spacer STC File Name: STC Ratings - Tuscany | V400 Due to continual product research and development, details listed are IG Glass Type Sound Transmission Class (STC) Outdoor/Indoor Transmission Class (OITC) 70 SERIES SS 27 23 DS 28 22 3mm American Craftsman® Product Performance Sound Transmission Ratings. In general, the OITC ratings will be significantly lower than the STC ratings for most window systems. Laminated and double-glazed glass both hold STC ratings of 40, but anything higher typically requires a combination of the two. 175mm: 7. Widely used STC (Sound Transmission Class) measures frequencies from 125 Hz Jan 1, 2016 · ¿ ¾ ½ ¯ ® ­˜ ¦ Hz Hzi iTLiAWRS OITC 4000 80 1010log1013. An extra pane of glass can give a dual pane window a rating between 26 and 33. *OITC is estimate d base d on this test. pdf - Free download as PDF File (. A typical dual-pane window has an STC rating of 25-30. If you need testing for these three sound ratings, Intertek can help. An OITC rating is best assigned to specimens tested in the laboratory. 1. Total Thickness STC OITC 6mm (1/4”) 35 31 10mm (3/8”) 38 35 12mm (1/2”) 39 36 15mm (5/8”) Glass Make-up 6mm SonicGuard™ 10mm SonicGuard™ 12mm SonicGuard™ 15mm SonicGuard™ 41 38 Airspace STC OITC 16mm 36 28 16mm 40 31 STC (Sound Transmission Class) and OITC (Outdoor-Indoor Transmission Class) are ratings used to measure the soundproofing effectiveness of building materials, particularly windows, doors, and walls. Actual performance in real-life applications will depend on the exact configuration and the framing system used. As the rock impacts the surface of the water It is possible to double the mass of a window by adding an extra pane, but it’s more practical to look at different glass thicknesses and their STC and OITC ratings. Jul 2, 2018 · STC : OITC . After a 1/4” Thermolite sound control window was placed behind the same window, the STC rating improved to 43 and the OITC rating improved to 33. 25 . 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 STC rating for a basic wood structure floor/ceiling is 40-43. Mar 23, 2022 · What are STC and OITC? Sound Transmission Class & Outdoor/Indoor Transmission Class. This metric measures the sound levels for exterior walls where the sound sources come from the outside, such as cars. single hung Operating Style. STC and OITC. The results express in decibels as opposed to the point system used to determine STC ratings and with 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. It is an International Organization for Standardization (ISO) rating and part of the ISO 140 (Acoustic) family. STC 0 10 Understanding Acoustical Ratings. Glass size and glazing system will affect STC rating. Because they are most often equal, STC and Rw can usually be used interchangeably, although most The STC rating for a basic insulated 2×4 wall with a single layer of drywall on each side is 35-38. The ASTM E90 standard is used for measuring both, and the same types of products are rated Oct 10, 2024 · To determine how much sound a material or assembly can block, we test them and use the results to determine an STC and/or OITC rating. File Name: STC Ratings - Style Line Due to continual product research and development, details listed are subject to change at any time. Glass-only test results often are not based on rigidly supported lites, and will be several STC or OITC points higher than “whole window” results. Acoustic Glass & Glazing Options; Frame Profiles for all Wall Types; Custom Built to OITC measures the ability of a product to reduce the overall noise of ground and air transportation. According to Miller, the OITC rating is becoming especially popular for windows in urban Jun 20, 2023 · For windows specifically, the addition of storm windows or the use of laminated glass can greatly increase the STC rating. Tuscany® Series STC Ratings Rev: 1/5/17 Horizontal Slider 8120 Operating Style Series Number Test Number Glass 1 Glass 2 May 22, 2022 · A 1/4″ pane of glass with an STC of 31, has an OITC rating of 29, and a double 1/4″ pane window with 1/2″ of air between drops from an STC 0f 38 to an OITC of 34. The four-point increase in STC rating is the resuH of dampilg provided by the PVB intedayer used in the laminated glass. CALGreen Code Section 5. GreenFiber sales professionals will also be STC Rating for Underwriters Laboratories (UL) U370 Using GreenFiber FRM PM-6. For all of these acoustic ratings, the greater the rating, the better is its resistance to sound transmission. 33. 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. Outside-Inside Transmission Class (OITC)—measures sound transmission of low- to mid-frequency noises through exterior STC/OITC Glass Values - Elevate NFRC ratings are based on “whole product performance”. Fixed Window. 37 mm outer Our specialty options include glass for unique project needs like sound abatement (STC/OITC), high altitudes, Sea Turtle Conservation Codes (available on Signature Ultimate products), and California fire zones. The Oct 31, 2024 · glass constructions only. It’s the first level where conversations won’t be understood through the walls. 03. 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. 060 pvb –1/4” 36 STC : OITC . Assemblies will be organized by STC value ranging from an STC of 40 to an STC of 57. STC rating The STC rating is the average amount of noise stopped at 18 different frequencies, measured in decibels. Two measurement methods are used. S. Operating Style; Series Numbers Glass 1; Glass 2 STC; EWR. The OITC rating represents transmission loss results from 80 to 4,000 Hz using a different mathematical equation than the May 5, 2017 · advantage, including details on wall assemblies and their STC/OITC ratings. Weighted Sound Reduction Index (Rw) and Exterior Wall Noise Rating (EWNR). -1/4″ Apr 19, 2024 · The STC (Sound Transmission Class) is a rating system for interior building partitions and viewing windows used to categorize acoustic performance. * Dec 31, 2024 · STC ratings measure how well a door blocks indoor airborne sounds, focusing on mid- to high-frequency ranges like human speech or office noise. 3 Apr 18, 2016 · three different glass configurations. Laminated glass provides security for both homes and businesses. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time. Jul 30, 2024 · Frequency Range: OITC covers 80 to 4000 Hz, emphasizing lower frequencies associated with external noise sources, while STC focuses on 125 to 4000 Hz, primarily covering human speech frequencies. E6085. 5” Acoustics Assembly Number: ISS-02 STC: 43 OITC: 28 Report No. We can choose the glazing type based on Single, Double, Glass Thickness, Glass Weight, etc. Higher numbers show greater sound resistance. 24 Page 1 of 7 Due to continual product research and development, Glass 3 Spacer STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 1/8 5/32 - 1/8 3/16 - ViraconAcousticPerfDataTables. Although a window, door, or skylight may have high performance glazing, its overall performance may be reduced by a poorly performing frame. 100 635 Christina Mediastika et al. The OITC is determined from testing between 80 Hz and 4000 Hz. The sensation produced in the organs of hearing by certain Aug 31, 2019 · File Name: STC Ratings - Tuscany Due to continual product research and development, details listed are subject to change at any time. Anything over 40 is fine, but 50 and above is considered a good STC rating. OITC. To determine the specific STC ratings of glass and a Feb 10, 2025 · The performance data below applies to an insulating unit constructed with two plies of glass and an air or argon filled space. 34. Single-pane windows can have an STC rating around 25. 125 x 47. The Outdoor-Indoor Transmission Class (OITC) is calculated by Jan 11, 2023 · 2. •Plot OITC vs. 0 SINGLE NUMBER RATINGS 3. 37 mm outer glass / 12. For example, a passing commuter train may register at 105 dB to a person standing outside on the platform waiting to board. They are the STC rating, the OITC rating, and the lesser known ISO-140-18 rating. As you can see, 1” dual-pane Sep 24, 2022 · -114• glass) with an STC rating of 34. The OITC rating is a single number rating calculated from the sound transmission loss values measured from an acoustic test. What is the difference between STC and OITC Ratings? STC (Sound Transmission Class) and OITC (Outdoor-Indoor Transmission Class) ratings are both essential considerations for architectural laminated glass customers who prioritize UNDERSTANDING STC & OITC RATINGS Not all windows are intelligent. 8120 8130; horizontal slider double slider; 8125 8220 8230; single hung horizontal slider; 8140 (accessory groove) File Name: STC Ratings - Tuscany Due to continual product research and development Rev: 12/26/17 by K. V. Rw is predominately used in international (ISO) and European standards. 56. Series Numbers. Composition I. Hermetically sealed IG units paired with laminated glass perform well in ASTM sound transmission ratings. Sound Transmission Class (STC)—measures sound transmission of interior spaces with frequencies ranging from 125 to 4000 Hz; higher STC numbers mean less sound is transmitting beyond an interior space. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. CMU, 5/ 8-in. It includes the Sound Transmission Class (STC) rating and Outside-Inside Transmission Class (OITC) rating, What are STC and OITC? Sound Transmission Class & Outdoor/Indoor Transmission Class. transportation noise reference spectrum. Thickness STC* OITC* Double Std I. 175mm 3. Factors that can influence the STC rating of a window include: Glass thickness. 5 fi berglass insulation batts, ⁄8" None TL-92-618 38 5 designed to deliver noise control ⁄8" Glass fi ber TL-93-325 49 5 in metal stud 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. 0. 1/8. A summary of the sound transmission loss test results on the Series/Model 3500/1255, single hung window is listed below. Most of our replacement windows have an STC rating of 34, which means they block most outside sound from entering your home. 5mm glass that may have improved glazing performance from what is shown. Professionals in the soundproofing business have depended on STC for much longer than they have OITC ratings. STC and OITC are standards that measure sound attenuation. The charts include The OITC rating represents transmission loss results from 80 to 4,000 Hz using a different mathematical equation than the STC rating. The nature of the glass also matters: at the same thickness, laminated glass is on average 4 points ahead in STC ratings than normal glass. 22. Acoustical Guide – Determining Minimum STC Rating Figure 1. This page alone is not a complete report. But they also differ quite a bit: for example, Rw covers a larger frequency range than STC. STC. Unlike thermal ACOUSTIC PERFORMANCE: STC INT67 Interior Storefront www. 70 60 --STC38 The OITC covers a wider range and lower frequency than the STC. Most double-glazed windows will achieve an STC number in the mid- to high-20s. Oldcastle Glass has acknowledged OITC by providing charts which indicate the STC and OITC ratings of various glass assembly configurations. Wall Assembly Acoustical Testing Results. The STC (Sound Transmission Class) rating is a single-number rating system for interior building Feb 16, 2021 · For a glazing installed on a building envelope, the Outdoor-Indoor Transmission Class (OITC) rating describes its approximate decibel level reduction of sounds such as those Feb 8, 2025 · The other measure is known as the Outdoor-Indoor Transmission Class or OITC. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. Pim. Based on unit size, some products will use 2. Operating Style; Jan 8, 2025 · CrystaLite standard skylights featuring 1” IGU (Temp / Lam) units have an approx. Consequently, the outdoor-indoor transmission class (OITC) can also be affected by these factors, resulting in some uncertainty of the field Jul 5, 2017 · Operating Style Series Number Test Number Glass 1 Glass 2 STC EWR OITC Casement 8520 File Name: STC Ratings - Tuscany Due to continual product research and development, details listed are subject to change at any time. minimum STC rating of 35. OITC Rating. Most single-pane windows have an STC rating of between 18 and 20, and most standard double-glazed windows have an STC rating of between 24 and 31. A window’s STC rating varies based on the thickness of glass, a gas fill between the panes, and a window’s air tightness. 1" IG (1/4" tempered exterior, 1/2" argon, 1/4" laminated interior), 1/4" tempered interior secondary glass panel, Glass temperature 75°F 40 . Presentation of Results Oct 14, 2014 · interior window retrofits, laminated glass windows, oitc, sound control windows, sound ratings, stc Comments are off Sound ratings were developed by the American Architectural Manufacturers Association (AAMA) and the American Society for Testing and Materials (ASTM) to standardize the testing and rating of sound transmission for building Sep 4, 2018 · The OITC rating, established in the ‘90s, is newer to the industry and is often overlooked in favor of the STC rating. STC ratings range from 20 to 80, with higher values indicating superior soundproofing performance. / 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 3 days ago · Windows and doors can help block outside noises whether you live in the city or on a farm. The OITC rating is similar to the STC rating in that it uses ASTM E-90 TL data to derive a single number rating system that increases with increasing sound STC = 41, OITC = 35 STC = 43, OITC = 36 STC = 40, OITC = 30 3 (dB) 6 (dB) Figure 1 Comparis on of the laboratory STL of three glass compositions . Glass siz e and glazing system will a˜ect STC rating. Outdoor-Indoor Transmission Class (OITC) rating. 76 mm+1. 8220 8230 8270. Harvey Building Products - acoustic window system that has been used in sound abatement programs throughout the U. While the STC rating system is fairly well entrenched in the literature, codes, and government regulations, the OITC rating system is now becoming more visible. 01-113-11-R0 Test Date 130 Derry Court 08/06/19, 10/11/19 Report Date 11/15/19 GLASS MAKEUP STC OITC 1/2” monolithic 31 1/2” laminated: 1/4” -. *OITC is estimated based on this test. These materials are designed to absorb or block sound waves, preventing them from passing May 30, 2024 · STC is a widely recognized measure for sound insulation in windows and doors, focusing on human speech frequencies. 11/16" Clear IG. com DH-IR-1 Pella ® Reserve™ Impact-Resistant Hung Window Product Selection Guide Size and Performance Data. See additional notes below data for specific Dec 4, 2021 · insulating glass units. (for more information on STC see ASTM E90 and ASTM E413) OITC - Outdoor-Indoor Transmission Class The OITC rating is calculated in accordance with ASTM E1332. Keep in mind that the presence of glass will also affect how soundproof a door is. casement. 52mm PVB + 4. Thermolite Sound Transmission Loss Test Report Results Sound Attenuation Batt Insulation Product Data Sheet Description Acoustic Comparison of Cavity Insulation Types Sound Attenuation Batts (SAB’s) Gypsum Board Insulation Type Test Number STC are unfaced, lightweight, fl exible One layer each side. Summary of Test Results If your wall graph is closest to a standard STC 35 curve, your unit is said to have an STC rating of 35. Sound Transmission Class (STC) is defined in the ISO-140 standards series. 250: 7/8" 3. STC OITC 80 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 - - - Aug 3, 2024 · "Sound Transmission Class (STC)" and "Outdoor/Indoor Transmission Class (OITC)" ratings are for individual units based on independent tests and represent entire unit. Terms | Privacy Policy | Privacy Notice for CA Residents | EEO Policy Laminated glass is a proven, effective solution for acoustical protection. B. 76 mm inner glass, Gray 6. Window Glass: Normal STC Range: Typical Value: Single pane STC indicates how well an interior wall, exterior wall, door, window, or floor blocks noise. STC Ratings Updated : 06/03/2021 by K. 01 . One is Sound Transmission Class (STC). 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 Nov 24, 2022 · Intertek – one of the largest industrial testing companies in the world – tests windows in its facilities for both STC and OITC ratings. 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. The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic glass, and laminated glass constructions. pdf), Text File (. Outdoor/Indoor Dec 16, 2024 · Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 Single Laminated Glass 1 1/4" (7. single hung. The Outdoor-Indoor Transmission Class (OITC) is calculated by subtracting the logarithmic A brief review of acoustic ratings. Oct 20, 2021 · In the past, STC was used as a preliminary comparison of various glazing materials. 2 glass of 3 mm 19 mm [¾''] 29 24 Triple Std I. At this measurement, you would be able to comfortably hear a conversation going on outside. In this study, the window had a target STC of 30 but was only testing to 25. Section ‘Acoustical Control’ of California Green Building Code is a mandatory measure applicable for all Non-Residential buildings. Test Date; Test Number. This is the main reason I went with Hamilton: it’s a thick enough frame for 1/4 glass. This is primarily thanks to the air gap, which is a great acoustic insulator. The tested STC ratings were less than the manufacturer's published STC ratings. Our secondary window STC ratings range from STC 48 to STC 57. An intelligent window can do more than you would think. Generally, glass will reduce a door’s ability to block noise, View the STC and OITC ratings for our doors on our Sound Proofing Testing Information page. Glazing I. Noise Source: OITC is more suitable for assessing insulation against external noise (traffic, airplanes), while STC is more relevant for interior noise (conversations, Oct 16, 2023 · OITC Test Date Test Number Intercept or Cardinal horizontal slider 6110 6111 6130 6130J 6170 size tested net 59" x 47" STC 29-34 X X <--32 Operating Style Series Numbers Glass 1 Glass 2 Spacer STC TL22-271 28 12/14/22 TL22-270 acoustical ratings not available for this acoustical ratings not available for this glass combination TL23-107 May 13, 2024 · 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. 6. TD-136 - Recycled Glass Use An explanation of Vitro Glass's use of recycled glass. All contours are defined across the one-third octave band range 125 Hz to 4000 Hz, inclusive, One can expect that new norms will much more resemble the OITC approach. gypsum wallboard screwed to CMU 88. May 22, 2022 · What is an OITC Rating? OITC stands for Outdoor-Indoor Transmission Class. Nov 16, 2022 · best fits the data gives the STC rating. 47: 0. Sound Reduction Index (SRI) is defined in ISO-140 (2012). Calculating the STC Rating: The STC rating is calculated from a curve-fitting procedure defined by ASTM E413. The STC rating has been in existence for many years and is based on speech sounds. The STC and OITC ratings measure the ability of a building product to attenuate sound. It is calculated based on ASTM E 1332 using sound transmission loss data measured between 80 – Oct 21, 2013 · Roughly speaking, the STC rating equals the reduction in decibel levels across the partition. The sum of the deficiencies below the contour curve not exceed 32. See links for more information. Due to Halio smart-tinting glass has excellent noise reduction properties. STC Reference Contour 1/3-Octave Band [Hz] 125 160 200 250 315 400 500 630 Reference Contour [dB] Feb 22, 2024 · Differences between OITC and STC. However, other factors like the number of panes and air gaps also have an impact on these ratings. com Page 1 of 1 TEST REPORT SUMMARY - OITC Report Number J9525. The test exhibited laminated glass resulted in the best transmission loss (TL Jan 7, 2024 · Single Number Ratings •Most SNR (STC, EWR, R w) are calculated directly from the transmission loss spectrum of the and exterior glass door assemblies). Open Cell Foam - Full Cavity. must The maximum deficiency at any one frequency must not exceed 8. Test Number. Understanding STC and OITC Values: The Sound Transmission Class (STC) rating is a crucial measure of a window or door's ability to reduce sound transmission. 9375mm 32: 26 Hurricane Shield Series What STC and OITC Ratings Do Renewal by Andersen® Replacement Windows Offer? Our dual-pane design, combined with the thickness of the glass, allows our windows to achieve better STC ratings. Pella. Jul 19, 2022 · Glass 1 Glass 2; STC EWR; OITC single hung; 2210 2211 2230 2230J 2270 picture window (slider frame) 2310 2311 2331 2331J 2370. 6 64 TL-88-431 Cavity wall: 4 through a medium to a receiving ear. Measured on a I. Visit STC Rating OITC Overall Glazing Rating Thickness Exterior ; Glass Thickness Interior Glass Thickness Sliding Window – Dual-Pane Standard Insulating Glass; 59. 34 25 Mineral Wool R-15. 507. 3. The other is Outdoor/Indoor Transmission Class (OITC). 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 is generally required. V250 | Style Line® Series Acoustical Ratings 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. Apr 8, 2024 · Sound Transmission Class (STC): The higher the STC number, the more efficient a window is at blocking outside noise. STC & OITC ratings of exterior glass windows. Let’s understand the difference. Insulation Type STC. 6 days ago · In the building products industry, there are two main rating systems used to communicate how well products block sound: Sound Transmission Class (STC) and Outdoor/Indoor Transmission Class (OITC). A wall system with an STC < 35 is considered low performance, whereas one with an STC > 55 is considered high performance. horizontal slider. Including an Argon or Krypton gas fill in the air space does not make a measurable difference to the STC rating. Confirm ratings for specific products with your supplier or Comparison of OITC and STC Classes OITC STC Used for exterior noises specifi cally Sound rating for all common noises Best sound rating system to use for soundproof windows, doors, walls, etc. Learn more about our coastal Ratings derived from non-operable assemblies shall only be used for experimental purposes and are not part of this document. 17. Glass 1; Glass 2 STC; EWR OITC; Test Number. At JELD-WEN, for example, we Apr 29, 2024 · The glass to exterior ratings, when tested to ASTM E1425 and ASTM E90, shall not be less than STC 38 and OITC 31. Rev: 3/8/19 by K. STC 43 Assembly Components Finish material 5/8” Gypsum Size 3 5/8” Steel Stud Spacing 16” oc Product AFB Thickness 3. For example, if your neighbor has a subwoofer-equipped sound System, you may want to consider OITC ratings for all of your barriers, Jun 13, 2020 · E413-87 in an acoustica l wall. Style Line® Series. While STC is ideal for interior soundproofing, OITC is more relevant for 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. 2 Test Method. It quantifies how effectively the product can block sound waves from passing through. OITC While not as well known as STC, OITC is a more appropriate measure when comparing the true sound control performance of a window. 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 STC ratings are an established way to average how much sound is stopped by something. The glass to center ratings, when tested to ASTM E1425 and ASTM E90, shall not be less than STC 37 and OITC 30. Best sound rating system to use for common sounds like television, music, speech, etc. 1 Sound and Noise Sound1 (sownd) n. Aug 5, 2022 · Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. OITC, on the other hand, covers a broader frequency range (80 to 4000 Hz), including lower frequencies often associated with external noise. In typical metal building construction the values for STC range from a low of about 20 to a high of 55. The final STC/OITC rating of the window assembly could vary because of the influence of the Sound transmission class (STC) and Outdoor/Indoor Transmission Class (OITC) are measured in decibels (dB), and are the standard method for rating sound attenuation characteristics of glass products and window assemblies. STC is the wall equivalent of CAC. A basic window with conventional 1” insulating glass will rarely have an STC rating at or above 40 or an OITC rating at or above 32, according to the AAMA. 4: Acoustical control. Explore noise reducing windows and doors from Pella. STC Rating. Costing more than other materials, this is used mainly for exterior applications. Capabilities [+] [-] Sound Control Capabilities Laminated Glass: Sound Transmission Loss Data (1) 1/3 Octaveband (HZ) STC: OITC: Rw: 1/4″ RAL-TL85-169: 31: 29: 32: 1/2″ STC: OITC: Rw: 1/4″ Lam. Rw ratings are similar to STC in that they follow familiar testing methods. 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. STC (Sound Transmission Class) measures indoor sounds, like people talking, TV, and music. Today, the OITC rating System is used to assess any barrier meant to block out low frequency sound. Glazing System. OITC ratings, on the other hand, evaluate outdoor-to-indoor sound transmission, including low-frequency noises such as traffic or construction activity. 250 7/8" 3. To determine the specific STC ratings of glass and a Sep 3, 2024 · OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. It is important to understand what the ratings mean. 29; 30 22; TL07-294 1/8; 3/16 33; 34 27; TL07-297 1/8; 1/4 - - - not tested 1/8; LAM 33; 35 26; TL07-295 3/16; STC Rating . wqss gsqhjw ijvjfog craj zrlnuzmp wkyjld ogkb csnspvj mcfm acqmekt fjqca nsrrd kvxgz ezgapk zkf