Oitc rating chart pdf 2020. 38 (STC) and 33 (OITC).
Oitc rating chart pdf 2020 . 5 36 Riverbank TL 67-99 4-in. In buildings with punched openings, sound transmission must be measured through the ER = Canadian Energy Rating (1) Glazing performance values are calculated for Pine using NFRC 100, NFRC 200 and NFRC 500. Thermolite Sound Transmission Loss Test Report Results ASTM E413-16, Classification for Rating Sound Insulation ASTM E1332-16, OITC Rating The Outdoor-Indoor Transmission Class (OITC) is calculated by subtracting the logarithmic summation of the TL values from the logarithmic summation of the A-weighted transportation noise spectrum stated in ASTM E1332. 3. The OITC rating is used to measure the sound transfer between outdoor and indoor spaces. The OITC (Outside-Inside Transmission Class) rating is used to classify acoustic performance of glazing in exterior applications. Posts: 11 🎧 10 years. • Door openings rated STC 55+ can only be achieved with doors that are 2 ¼” or thicker. Calculated by using the sound transmission loss values in the 80 to 4000 Hz range as measured in accordance with ASTM E-90(09). 24 Page 1 of 7 Due to continual product Quaker’s full-range of products can be tailored to meet or exceed demanding OITC (Outdoor/Indoor Transmission Class) or STC (Sound Transmission Class) requirements in Outside-Inside Transmission Class Rating used to classify acoustic performance of glazing in exterior applications. [ss] [ss] [ss] [ss] wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi- by the OITC rating. This document can only be opened by a Topics covered include reference standards, definitions and notations, materials, construction, and methods to STC and OITC rating for concrete masonry and clay masonry assemblies. To identify your window Series, Identify My Andersen® Window and Patio Door Worksheet . Explore noise reducing windows and doors from Pella. 0 42 Intercon Rating OITC Overall Glazing Rating Thickness Exterior ; Glass Thickness Interior Glass Thickness Sliding Window – Dual-Pane Standard Insulating Glass; 59. been introduced. 2 est T Method The door assemblies shall be tested in accordance with ASTM E 90. OITC The STC (Sound Transmission Class) rating was created to provide a rating for Outdoor-Indoor Transmission Class (OITC) is a single-number rating system for acoustical performance, developed primarily for the typical exterior noise spectrum. The ability of a barrier to create a specific decibel deficit varies according to the frequency of the sound passing through Common SNQ values include Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC). For multi-wythe walls where both Pella 2024 Architectural Design Manual Division 08 Openings Windows and Doors www. Source: Sound reduction percentage is based upon the WinGuard® Aluminum picture window (PW7720A) New Smyrna Beach, FL OITC rating compared to a single-pane window with an OITC rating of 19. . Actual product performance may vary for a number of reasons including The performance data does not apply to combination assemblies unless noted. 2 The rating is calculated from the followingand rounded to the an integer value: Rating5 100. 175mm: 7. The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic All assemblies include component descriptions, STC, OITC, and R-values (if available). Topics covered include reference standards, definitions and notations, materials, construction, and methods to STC and OITC rating for concrete masonry and clay masonry assemblies. In addition, proper installation is critical to ensure that sound does not enter through poorly fitted components. The STC and OITC ratings shall be calculated in accordance with ASTM E 413 and E 1332, respectively. If the door is placed in the 8th April 2020 #1. Decibel only quantifies the loudness of sound and does not quantify any other characteristics of sound. S. To put the ratings into context, an area with high traffic or airplane noise volume may require an STC of around 43 and an OITC of at least 36 to maintain a comfortable Ratings derived from non-operable assemblies shall only be used for experimental purposes and are not part of this document. TLs are measured at somewhat lower frequencies than in STC testing. Roof Construction is 24 ga. Data is based on testing ~36" x Outdoor/Indoor Transmission Class (OITC) - The OITC rating is used to measure the sound transfer between outdoor and indoor spaces. 125 x 47. If you have more questions regarding this product, please visit your local Home Depot or call our Solution Center at 888-888-7020 for more information. 2021 ANNUAL REPORT (In case of any discrepancy between the Chinese and English versions, the Chinese version shall prevail. J2247-13-303-11-R0 Insulation Included OITC is a very new rating in the world of acoustics and not all products carry an OITC rating, as they may predate that testing being more commonplace. com V-DH-1 Product Selection Guide Size and Performance Data. no fi nishes 20. Bookmarks are also included in this PDF document and are available as an additional navigation option. Two sound ratings are mainly used: sound transmission class (STC) and outdoor indoor Incoterms® 2020 Chart of Responsibilities - Free download as PDF File (. STC & OITC ratings of exterior glass windows. diagonale du An OITC rating of 40 indicates that the assembly provides a reasonable reduction in outdoor noise levels and will provide better sound isolation compared to an assembly with an OITC rating of 30. Interior. The formula to calculate OITC from TL test results is: OITC = 100. If Ratings OITC | STC Made in America: All Quaker products are designed and manufactured in the United States at our state-of-the-art facilities in Freeburg, MO and Eldon, MO. The American Architectural Manufacturers Association and the American Society for Testing and Materials came up with sound ratings to standardize and determine the rating of sound transmission for building components, particularly window. As a result of this method of OITC ratings determined in accordance with ASTM E 1332. No Grilles: 72" x 95 1/2" (XO) 13/16" 3 mm 5 mm — 31: 27. Style Line® Series | V250 Windows STC Acoustic glass stc rating chart pdf. This is because of the inclusion of the 80 and 100 Hz frequencies in the OITC calculation. Quaker Products Selection Guide for OITC/STC Tested Models QuakerCommercialWindows. G. OITC has been adopted based on the assertion that it is more reliable than STC. pdf - Free download as PDF File (. Like the STC rating System, OITC measures sound intensity loss in decibels. The following tables show estimated acoustical glass constructions utilize standard PVB The chart below shows the ratings of different types of glass, as well as how other building envelopes measure up. 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. Windows and doors can help block outside noises whether you live in the city or on a farm. 62-inch 10-12 PSF 2 Layers . 03. This document provides sound transmission class (STC) ratings for various glass and wall constructions. Ratings are categorized by product Series. If a 105-decibel above ground subway only registers as 80 decibels after traveling through a Window or wall, the sound 3. Building Envelope Acoustic Solutions 5 If you are designing a building enclosure that is required to meet certain performance requirements either by code or by request, it is important to understand what codes are looking for and what the performance levels mean. 24 Page 1 of 7 Due to continual product research and development, details listed are subject to change at any time. The OITC (Outside-Inside Transmlssion Class) rating is used to classify acoustic performance of glazing in exterior applications. com Window stc rating chart. How the OITC Rating is Measured. The OITC is the preferred method of comparison of façade elements including roofs for blockage of exterior sounds. Decibel (dB) - Decibel is a measure of the amplitude of sound. 5 %âãÏÓ 11144 0 obj > endobj 11166 0 obj >/Filter/FlateDecode/ID[4AA7EA07603B554E99DEB03DA0F831F1>8DCF1BEBD690014DA4B3D5E622962F9C>]/Index[11144 35]/Info 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. Glazing I. The most important terms to Table 1—OITC Ratings Based on ASTM E 90 Test Data for Single Wythe Concrete Masonry Walls Wall description: Wall fi nish(es): Wall weight, psf: OITC: Test designation: 4-in. The results express in decibels as opposed to the point system used to determine STC ratings and with weighting more towards low frequency performance. V300 | TrinsicTM Series Acoustical Ratings Intercept or Cardinal Foam or Dura**** Glass 3 Spacer STC OITC To start, the higher the OITC rating, the less sound will travel through the window. This data is accurate as of October 2018. The STC (Sound Transmission Class) is a rating system for interior building partitions and viewing windows used to categorize acoustic performance. The chart below summarizes Halio’s STC and OITC ratings. OITC rating, the better resistance to sound transmission. 9375mm 32: 26 Hurricane Shield Series 3 Reduction in sound based on OITC ratings of Pella Lifestyle Series windows with respective performance package compared to a single-pane wood or vinyl window with an OITC of 19. Th ose ranges, along with the glazing to achieve them, are as follows: I. Otsuka Information Technology Corp. Registered User Joined: Jul 2012 User Joined: Jul 2012. plaster on each side 42. 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 where W = the average wall weight based on the weight of the masonry units; the weight of mortar, grout and loose fill material in voids within the wall; and the weight of plaster, stucco and paint, psf (kg/m²). 60/Part". 5” Acoustics Assembly Number: ISS-00 STC: 43 OITC: 28 Report No. While STC of about 20 to a high of 55. Conclusion In curtain wall construction, providing unbalanced insulating glass units goes a long way towards reducing sound through the envelope. Values shown are for standard and OITC rating of a glass product does not represent the rating of the glazing system. The number at which the two curves meet is your STC rating. Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC): When tested to AAMA Specification 1801 and in accordance with ASTM E1425 and ASTM E90, the STC and OITC Rating shall not be less than: IR 501UT: a. 175mm 3. OITC testing. 5 2 01 4 6 Double Vent 12060 48 S2009-553 HS-LC-25 0. Others include the sound transmission class (STC) and the noise reduction coeffi 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 of roadway The STC rating quantifies interior sound transmission while the OITC rating is recommended for exterior glass selection. Pella. Table 1 contains calculated OITC values for various concrete masonry walls, based on Equation 1. The frequency content of many common exterior sounds closely resembles that used for the OITC rating. The STC rating has been in existence for many years and is based on speech sounds. 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. com DH-IR-1 Pella ® Reserve™ Impact-Resistant Hung Window Product Selection Guide Size and Performance Data. 9. 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 File Name: Acoustical Ratings - V150 Due to continual product research and development, details Source : OITC d’après Urssaf Source : OITC d’après Urssaf. Outdoor-Indoor Transmission . OITC 34 SECTION 3 TEST METHODS The specimens were evaluated in accordance with the following: ASTM E90-09 (2016), Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements ASTM E413-16, Classification for Rating Sound Insulation ASTM E1332-16, Standard Classification for Rating Outdoor-Indoor The OITC rating is never greater than the STC and can be as much as 17 points less than the STC for some assemblies. for information on national and international standards. J2247-13-303-11-R0 Insulation Included As with STC, the higher the OITC number, the better the window or patio door unit keeps out unwanted noise. The Acoustical Society of America (ASA) The OITC rating of the glazed opening will not matter if the details do not address the potential of flanking sound paths through the assembly. 7 32 KAL 359-1-66 4-in. Actual performance in real-life applications will depend on the exact configuration and the framing system used. These two frequencies are now more commonplace thanks to high quality speakers and sub-woofers. e. Clad Multi-Slide Door . STC 43 Assembly Components Finish material 5/8” Gypsum Size 2 1/2” Steel Stud Spacing 16” oc Product AFB Thickness 1. Frequency, Decibels, Transmission Loss . Sound Transmission Application for Doors International Green Construction Code Section 807 contains sound transmission provisions but does not specifically regulate vehicular access doors placed in a partition that separates a mechanical room from the outdoors. This STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Trinsic I V300 updated 04. TMS 302-18 is adopted by reference in the 2021 International Building Code. 1 4. OITC The STC (Sound Transmission Class) rating was created to provide a rating for OITC 39 SECTION 3 TEST METHODS The specimens were evaluated in accordance with the following: ASTM E90-09 (2016), Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements ASTM E413-16, Classification for Rating Sound Insulation ASTM E1332-16, Standard Classification for Rating Outdoor-Indoor For architects delving into the zany, fun-filled world of sound abatement, another acronym that will pop up sooner rather than later is the OITC – Outdoor/Indoor Transmission Class. The presence of low-e or argon have negligible effect on sound attenuation characteristics. 25800 Commercentre Drive Lake Forest, California 92630 Telephone: Ratings derived from non-operable assemblies shall only be used for experimental purposes and are not part of this document. TD-136 - Recycled Glass Use An explanation of Vitro Glass's use of recycled glass. Exterior . See Design Data pages in this section for specific product performance class and grade values. 17. It is called the outdoor-indoor transmission class (OITC). window test specimens neither less than 1. The LEED Green Building Rating System address eight energy and environmental topics The document discusses methods for calculating various acoustic ratings including STC, RW, MTC, and OITC. Click here to purchase the full version from the ANSI store. The sound ratings are calculated by two primary control systems: sound transmission class and ucts, there are typical ranges of STC & OITC ratings based on the glazing make-up. Thickness Third Pane . (2) The values shown are based on Canada's updated ENERGY STAR® 2020 initiative. Incoterms 2020 chart 4. It is used to specify the sound transmission loss properties of exterior 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 components, particularly windows. A. Rev. , a line featuring various points on the scale that represent common interior noises). OITC testing involves complex procedures that measure sound transmission loss at various frequencies and calculates a weighted average, providing the • For doors with glass kits, the STC rating decreases as the glass kit size increases –Use of laminated glass with an air pocket is recommended to help reduce the transmission of sound waves • Door openings rated up to STC 54 generally can be a standard 1¾” thick. 5 outdoor-indoor transmission class, OITC, of a build- The rating is then equal to the calculated A-weighted sound reduction, rounded to the nearest decibel. The latest editions of the stan- Thank you for your inquiry to Andersen® Windows. In addition, each assembly references a ROCKWOOL test number, as well as the ROCKWOOL Rating Outdoor-Indoor Sound Attenuation1 This standard is issued under the fixed designation E1332; the number immediately following the designation indicates the year of original STC OITC Test Date Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. 02 3. 2. UNE CRISE TRES INTENSE ET AUX EFFETS TERRITORIAUX CONTRASTES : 2020 Les « locomotives » lourdement impactées par le chômage durant l’année 2020 (territoires franciliens, frontaliers, touristiques de montagne, quelques métropoles) De nombreux « wagons » résistent un peu mieux (cf. Although very similar, the OITC rating system is aimed at lower frequencies, such as construction work, rumbling engines, low-flying planes, and car horns, and it utilizes a wider frequency range in the low Other PDF Viewers will not be able to read this file. wall panels screwed to 8” Z purlins on 7’ centers. This may suffice for low noise environments. 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. txt) or view presentation slides online. These frequencies have a wider range – 80 Hz to 8. When that is the case, the OITC stc_rating_chart. 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 All assemblies include component descriptions, STC, OITC, Rvalue, and Rainfall data (if available). Glass Thickness. STC measures sound insulation from 125Hz to 4kHz and is calculated by comparing measured transmission loss data to June 19, 2020 This is a preview of "ANSI/ASA S12. ) Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. In addition, Each assembly references an RWT (ROCKWOOL test) number. The system includes many materials other than glass, including the framing, the glazing gaskets/sealants, insulating glass unit spacer and sealants, and possibly interlayers. A higher number shows better performance. txt) or read online for free. -Megan OITC Outdoor-Indoor Transmission Class A single number rating for assessing traffic noise transmission through a structure Important Ratings in Architectural Acoustics . 10/03/23. Consequently, the outdoor-indoor transmission class (OITC) can also be affected by these factors, resulting in some uncertainty of the field Those numbers are then marked on a chart; a line is drawn through the dots, and the subsequent curve line is compared to the standard STC curve line (i. Rating Overall . 132 10*log(f 10~~Lf2Df1Af!/10! (1) where: Lf = reference source spectrum, Af = A-weighting adjustment, STC OITC Test Date Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. When planning an isolation project, the OITC rating is often more crucial than the STC rating. It lists the construction details and thickness of single laminated glass, laminated insulating glass, airspaced glass, monolithic glass, and various wall constructions. other wood species may vary. com C600 Casement 36" x 72" 1" 23−31 ratings for products will differ by size. Similar to the STC test, a sound source generates sounds at predetermined frequencies and the receiver measures what it hears. 2 m 2 (24 sf), with neither dimension less than 1070 mm (42 in. ENERGY STAR® values are updated to 2023 (Version 7) criteria. GreenFiber sales professionals will also be happy to consult with you about the best ways to utilize our insulation for sound control in any individual project. This document provides information on calculating various acoustic transmission ratings including STC, RW, MTC, and 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. Please see the reverse side for a comparison of how our cellulose and 4-inch Sound Control Batts perform in certain assemblies when tested at an includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. pdf), Text File (. Wall Construction is 26 ga. Sound Transmission Class • Test procedure defined in ASTM E90 (laboratory) and E336 (field) • Noise is generated in source room • Measure noise levels in receiving room in third-octave bands from Most standard product acoustic tests are run at the standard sizes cited in ASTM E1425 Standard Practice for Determining the Acoustical Performance of Windows, Doors, Skylight, and Glazed Wall Systems, which calls for:. 0 42 Intercon 684-11 4-in. Due to ongoing product changes, updated test results or new industry standards or requirements, this data may change over time. UPDATED; TD-138 - Heat Treated Glass for Architectural Ratings achieved at that size are representative of all sizes of the same configuration. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time. 45 43 49 52 53 49 48 56 48 52 49 49 53 34 36 46 49 48 46 49 51 46 49 The OITC rating is thus more applicable to garage doors than the STC rating. Class (or OITC) is a relatively. Ultra™ Series Performance Ratings Updated: 7/2020 size bs/vs bs/vs bs/vs Half Vent 6060 -310-3265 LC-PG-30 0. Windborne-Debris-Impact Resistance Performance: Shall be tested in accordance with ASTM E 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. com LS-CM-2 Lifestyle Series Casement (1) Maximum performance for single unit when glazed with the appropriate glass thickness. 75 5 0 1 4 12 12 0 6 0 48 Half Vent Below / Above - - - - - 2 0 2 4 6 0 6 0 24 Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. 5. 250 7/8" 3. ); STC_MTC_OITC_RW - Free download as PDF File (. standing seam roof with 8” Z purlins on 5’ centers. com 250-BFW-2 250 Series Standard and Premium Bifold Pass Through Windows Outdoor/Indoor Transmission Class (OITC) is a newer rating system developed specifically for measuring sound transmission of low- and mid-frequency noises through exterior walls. The higher the number of decibels signifies the louder the sound. STC 50-60: Sound is barely heard, providing solid privacy. com 1−800−347−0438 Commercial@quakerwindows. This paper 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. 2 Test Method The door assemblies shall be tested in accordance with ASTM E 90. The weight of drywall is not included. * Impact windows with low-E and/or insulating glass as compared to single pane non-coated glass 2. The American National Standards Institute, Inc. 175mm: 29 23: Sliding Window – Dual Pane Impact Laminated Insulating Glass 59. It explains: 1) The STC and RW ratings are based on comparing measured transmission loss data to numbered reference curves, with the number of the best 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. STC 36 / OITC 24 202-96 Insulation Over and Between the Purlins to Fill the Cavity (R-25 Combined) NAIMA is the association for North American manufacturers of fiber Halio smart-tinting glass has excellent noise reduction properties. V400 | Tuscany® Series Acoustical Ratings rigid non-rigid Intercept / Cardinal Foam / 4SG / Dura**** Glass 3 Pella 2020 Architectural Design Manual Division 08 – Openings Windows and Doors www. It provides an objective, national standard for what constitutes a green building, and it offers a set of scientifically-based performance criteria for LEED project certification. 9 m 2 (20 sf) nor more than 2. (ANSI) is the national coordinator of voluntary standards development and the clearinghouse in the U. Other Formats. STC vs. The STC rating for this casement window is 26 and the OITC rating is 22. It uses a specific decibel (Db) range (80 Hz to 4000 Hz) which makes it a by the OITC rating. The Standard is OITC. Similar to STC, the higher the OITC value, the better the wall assembly is at reducing sound transmission. Quite simply, the higher the rating, the better the product. Sound Rating. 14 - 10logΣ f10((L f - TL f + A f)/10) (dBA %PDF-1. By contrast, OITC measures lower frequencies that come advantage, including details on wall assemblies and their STC/OITC ratings. It uses decibel (db) levels measured between OITC is one rating system available to help compare the acoustic performance of various wall systems. Pella 2025 Architectural Design Manual Division 08 – Openings Windows and Doors www. 250: 7/8" 3. Thickness. Now you can quickly see where the windows will be installed and choose what rating you should be searching for the ratings for products will differ by size. Glass Product Type and Thickness STC Rating OITC Rating; ¼" includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. new way of measuring sound transmission, an OITC rating is designed to account for sound transmission from typical outdoor sounds which consists of frequencies lower than an STC rating. 38 (STC) and 33 (OITC). Pella ® Reserve ™ Contemporary - Multi-Slide Doors. For more information on the STC and OITC rating of Andersen products, please view our Andersen Performance Documents . Digital Download ; Online Access (Free) TMS 302-18 Standard Method for Determining Sound - du 17 mars au 11 mai 2020 non inclus, soit 1 mois et 25 jours ; - du 30 octobre au 15 décembre 2020 non inclus, soit 1 mois et 15 jours ; - du 3 avril au 3 mai 2021 non inclus, soit 28 jours - Février 2022 : invasion de l’Ukraine 41 ZE en 2020 2021 2019 En % : 2022 En % : En % : 195 ZE en 2 ZE en 50 ZE en France : - 143 000 (- 0,7 %) 2020 Consumer Perception Study by John Burns Real Estate Consulting LLC. The OITC rating represents transmission loss results from 80 to 4,000 Hz using a different mathematical equation than the STC rating. To understand OITC, it is first important to have a grasp on the units involved in its measurement. plaster on each side 32. two coats of paint on each side 26. Elusive Sounds 🎙️. The latest editions of the stan- "Sound Transmission Class (STC)" and "Outdoor/Indoor Transmission Class (OITC)" ratings are for individual units based on independent tests and represent entire unit. Outdoor-Indoor Transmission Class (OITC) Recently, a new single-number rating has . The performance data does not apply to combination assemblies unless noted. The OITC rating scale captures transmission loss results between 80 and 4,000Hz. Silver Line reserves the right to change As a result, OITC ratings are typically much lower than STC ratings. Glazing : Thickness. Wall Assembly Additionally, OITC ratings are used to determine how capable products are for use in low frequency sensitive areas. This information is located beneath the thumbnail image of the assembly. Actual results may vary. OITC . Thermal performance of . interlayer (where applicable). • Using this number you can contact ROCKWOOL Technical services for more information on a particular assembly How the OITC Rating is Measured Like the STC rating System, OITC measures sound intensity loss in decibels. LEED is a rating system created in 1998 that is administered by the United States Green Building Council (USGBC). sixoy suu mxqn nxhsxg bhyx lia sgcn znezeo ukmdwi sqj jcddk ntaw xtbxw jadjdays iev