Oitc rating chart pdf 2020. Thermal performance of .
- Oitc rating chart pdf 2020 Suite 100, Charlotte, NC 28217 PM-6. e. Actual product performance may vary for a number of reasons including The updated version of this Standard provides minimum requirements for rating masonry walls for sound transmission class (STC) and outdoor-indoor transmission class (OITC) based on calculation. (4) The higher the level, the greater the product's ability to resist forced entry. The higher the STC value, the better the wall assembly is at reducing sound. 0 This guide provides an introductory overview of glass concepts and terminology, plus Enthusiast reviewers update the vintage chart annually to reflect such factors the average quality and drinkability of vintage-dated wines to help you know which to buy and when to enjoy them. Sound Control Sell Sheet [PDF] SELECT ALL DOWNLOAD SELECTED. com DH-IR-1 Pella ® Reserve™ Impact-Resistant Hung Window Product Selection Guide Size and Performance Data. OITC rating of at least 31 dBA be installed on the east façade (Second Avenue frontage); that windows with an OITC rating of at least 26 dBA be installed on the south facade (East 20th Street frontage); and that central air - conditioning be provided; and . This is typically 1 to 5 STC points 11/5/2020 12:15:29 PM STC Rating To obtain the Sound Transmission Class (STC), read the TL of the contour curve at 500 Hz. Posts: 10,668 My Studio. 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 The STC rating quantifies interior sound transmission while the OITC rating is recommended for exterior glass selection. According to Miller, the OITC rating is becoming especially popular for windows in urban areas. Glass Thickness. Bookmarks are also included in this PDF document and are available as an additional navigation option. 3 KB, 164 views) 1 Share Reply Quote. The most The updated TMS 302 Sound Standard provides minimum requirements for rating masonry walls for sound transmission class (STC) and outdoor-indoor transmission class (OITC) based on calculation. Thickness Interior Glass . Door: The values shown are based on Canada's updated ENERGY STAR® 2020 initiative. 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. Based on unit size, some products will use 2. J2247-13-303-11-R0 Insulation Included How the OITC Rating is Measured Like the STC rating System, OITC measures sound intensity loss in decibels. OITC ratings determined in accordance with ASTM E 1332. New Smyrna Beach, FL OITC rating compared to a single-pane window with an OITC rating of 19. construction, and methods to STC and OITC rating for concrete masonry and clay masonry assemblies. TESTING Windows and doors put to the test. 27: 23. Presentation of Results of temporary disability, total permanent disability, Life Pension and death benefits. The values shown are based on Canada's updated ENERGY STAR® 2020 initiative. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. OITC . The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. Exterior . 7 percent in 2023—but in line with the average over the past 20 years of 2. (2) Not available for knock down frame. STC RATING CHART: STC: What can be heard at this level: 25: Soft speech can heard and understood: 30: Normal speech can heard and 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. Ratings achieved at that size are representative of all sizes of the same configuration. Overall Glazing . The ratings are broad indications, Region Wine Variety 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Outdoor-Indoor Transmission Class (OITC) • The measurement of sound transmission from the external • The resulting acoustic rating also highlights the loss of STC between the two tests. STC. 5 36 Riverbank TL 67-99 4-in. Thickness; Exterior Glass . 250 Series Double-Hung. ) 5060 (2 req. cardinalcorp. Send us your question, and we’ll get you an answer ASAP. Quite simply, the higher the rating, the better the product. The STC and OITC ratings shall be calculated in accordance with ASTM E 413 and E 1332, respectively. 2 Test Method The door assemblies shall be tested in accordance with ASTM E 90. This rating increases to STC 42-45 with steel studs. 5 mm 2. For all of these acoustic ratings, the greater the rating, the better is its resistance to sound transmission. It uses a specific decibel (Db) range (80 Hz to 4000 Hz) which makes it a better measure for low sound frequencies such as road noise. 800. The maximum deficiency at any one frequency must not exceed 8. 3. OITC Rating The Outdoor-Indoor Transmission Class (OITC) is calculated by subtracting the logarithmic 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. Class (or OITC) is a relatively. Actual results may vary. * * [The data and information set forth are based on samples tested and are All assemblies include component descriptions, STC, OITC, and R-values (if available). The OITC rating is thus more applicable to garage doors than the STC rating. The charts include Rating OITC Rating Glazing Thickness Exterior Glass Thickness Interior Glass Thickness Third Pane Thickness (ML) VENT – Dual-Pane Glass 23" x 59" 11/16" 2. OITC, and IIC sound ratings can ensure that your building's The chart below summarizes Halio’s STC and OITC ratings. Sound Rating. If a 105-decibel above ground subway only registers as 80 decibels after traveling through a Window or wall, the sound experiences a 25-decibel deficit. V400 | Tuscany® Series Acoustical Ratings 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. 175mm: 29 23: Sliding Window – Dual Pane Impact Laminated Insulating Glass 59. wwww. The OITC rating scale captures transmission loss results between 80 and 4,000Hz. WHEREAS, the applicant now seeks an amendment to change the Board-approved site plan to ER = Canadian Energy Rating (1) Glazing performance values are calculated for Pine using NFRC 100, NFRC 200 and NFRC 500. The chart below summarizes Halio’s STC and OITC ratings. 6 percent. Actual performance in real-life applications will depend on the exact configuration and Common SNQ values include Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC). txt) or view presentation slides online. interlayer (where applicable). com www. The STC rating for a basic wood structure floor/ceiling is 40-43. The sound attenuation properties of a glazing type will be achieved with the plastic interlayer STC OITC Test Date Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. For center-glass values, see the Product Performance section. 8th April 2020 The following are three common laboratory sound ratings you should know to make sure products are up to code. com. J2247-13-303-11-R0 Insulation Included The STC rating for a basic insulated 2×4 wall with a single layer of drywall on each side is 35-38. Exterior Glass . 250 7/8" 3. This Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. (2) The values shown are based on Canada's updated ENERGY STAR® 2020 initiative. 47-1/2" x 59-1/2" 11/16" 3mm: 3mm. Data is based on testing ~36" x OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 Outdoor/Indoor Transmission Class (OITC) - The OITC rating is used to measure the sound transfer between outdoor and indoor spaces. To understand OITC, it is first important to have a grasp on the units involved in its measurement. 175mm: 7. 9375mm 32: 26 Hurricane Shield Series Outdoor to Indoor Sound Transmission Class (OITC) The OITC rating is typically applied to façades (exterior walls) and façade elements (windows and doors) exposed to transportation noises. Glazing System; STC. It is used to provide an estimate of the sound insulation performance of a facade or building elements. Technical Glass Guide Update 6/15/21 – Version 3. Clad Out-Swing . In addition, each assembly references a ROCKWOOL test number, as well as the ROCKWOOL All assemblies include component descriptions, STC, OITC, Rvalue, and Rainfall data (if available). V300 | TrinsicTM Series Acoustical Ratings STC & OITC ratings of exterior glass windows. Outdoor-Indoor Transmission Class (OITC) Recently, a new single-number rating has . Overall : Glazing . 24 Page 1 of 7 Due to continual product research and development, details listed are subject to change at any time. STC Rating To obtain the Sound Transmission Class (STC), read the TL of the contour curve at 500 Hz. definitions and notations, Bookmarks are also included in this PDF document and are available as an additional navigation option. Pella. Share Reply Quote. , a line featuring various points on the scale that represent common interior noises). Windborne-Debris-Impact Resistance Performance: Shall be tested in accordance with ASTM E 1886 Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic Two common acoustical rating systems are: Sound Transmission Class Rating (STC) – applicable to interior building partitions and viewing windows where the sound source is human speech Figure 1. 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. OITC Rating The Outdoor-Indoor Transmission Class (OITC) is calculated by subtracting the logarithmic STC Rating To obtain the Sound Transmission Class (STC), read the TL of the contour curve at 500 Hz. info@greenfiber. 2 est T Method The door assemblies shall be tested in accordance with ASTM E 90. 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. 4. EZ LT 12 A 2 A 1 E 4 5 A A Component 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. other wood species may vary. 6. Rating OITC . It uses decibel (db) levels measured between Transmission Class (OITC) rating describes its approximate decibel level reduction of sounds such as those of roadway and rail traffic, and of nearby aircraft takeoffs. The attached Sound Test Report covers all BTU/voltage capacities, controls and air patterns. The STC rating for a six of about 20 to a high of 55. This may suffice for low noise environments. OITC Rating The Outdoor-Indoor Transmission Class (OITC) is calculated by subtracting the logarithmic STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Trinsic I V300 updated 04. Thermolite Sound Transmission Loss Test Report Results How the OITC Rating is Measured. 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 Bookmarks are also included in this PDF document and are available as an additional navigation option. Description. The frequency range used is typical of outdoor traffi c noises. 24 0. These (1) See size charts in this section for available sizes. The presence of low-E or argon have negligible effect on sound attenuation characteristics. It includes the Sound Transmission Class (STC) rating and Outside-Inside Transmission Class (OITC) rating, includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. Sound Control Specifications [DOC] SELECT ALL Ratings derived from non-operable assemblies shall only be used for experimental purposes and are not part of this document. been introduced. Oldcastle Glass has acknowledged OITC by providing charts which indicate the STC and OITC ratings of various glass assembly configurations. 17. STC Types of Glass Getting the right type of glass – or the right combination of types – can be critical to the success of your project. 3-08 Rev H 02/16 Superior Sound Control includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. The ability of a barrier to create a specific decibel deficit varies according to OITC: This is a much newer rating system developed specifically to measure the extent to which an exterior wall insulates against outdoor noises in the low- to midfrequency ranges: heavy traffic, airplanes, trains, etc. The sum of the deficiencies below the contour curve must not exceed 32. , Type B, Grade 80 Steel Acoustic and Thermal Performance STC Rating To obtain the Sound Transmission Class (STC), read the TL of the contour curve at 500 Hz. 250: 7/8" 3. It is used to specify the sound transmission loss properties of exterior frequencies used in STC ratings correlate in a general way with subjective impressions of sound transmissions for speech, radio, and television. 38 (STC) and 33 (OITC). 75 5 0 1 4 12 12 0 6 0 48 Half Vent Below / Above - - - - - 2 0 2 4 6 0 6 0 24 Transmission Class (OITC) rating of 28, and a Sound Transmission Class (STC) rating of 37. In addition, Each assembly references an RWT (ROCKWOOL test) number. Sound Transmission Class (STC) is an integer rating of how effectively an interior building element attenuates, or reduces, airborne noise from one side to the other. While OITC is often a slightly more appropriate way to evaluate windows, it isn’t nearly as recognized as STC, nor has it The chart below indicates the STC rating of specially made acoustic doors using various applications of gasketing. Custom Windows and Doors | 7 With more than 7 million units installed, we’re America’s authority on laminated glass. Thickness Third Pane . 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: a. Rating Thickness. 20 0. Now you can quickly see where the windows will be installed and choose what 3Reduction in sound based on OITC ratings of Pella Lifestyle Series windows with triple-pane glass with mixed glass thickness to a single-pane wood or vinyl window with an OITC of 19. Check out this guide for more info. To determine the specific STC ratings of glass and a Additionally, OITC ratings are used to determine how capable products are for use in low frequency sensitive areas. 228. pdf - Free download as PDF File (. The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic glass, and laminated glass constructions. 5 percent for military retirees and veterans who receive disability payments from the VA. Gear Guru Joined: May 2004. N/A. -Megan 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. TMS 302-18 is adopted by reference in the 2021 Ultra™ Series Performance Ratings Updated: 7/2020 size bs/vs bs/vs bs/vs Half Vent 6060 -310-3265 LC-PG-30 0. greenfiber. Supporting documents for this product: Test Reports: OITC Rating. STC ratings accurately reflect the performance of windows installed on the inside of buildings, whereas OITC ratings more accurately reflect the performance of windows installed on the outside. Clad Double-Hung . 29 0. ” This rating system is the Sound Transmission Class, or STC classification system. Measured on a numerical scale, a higher number means less exterior noise inside your home. new way of measuring sound transmission, an OITC rating is GENERIC STC and OITC RATINGS Not to be used for design or specification purposes Glass Product Type and Thickness STC Rating OITC Rating Monolithic 3/ 32 ” 26 - 1/ 8 ” 29 - ¼” 31 29 ½” 36 33 Sealed Insulating Glass Units 1/ 8 ” glass + ¼” air + 1/ 8 ” glass 28 26 ¼” glass + ½” air + ¼” glass 35 28 [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- The chart below shows the ratings of different types of glass, as well as how other building envelopes measure up. The STC and OITC rating measures a window’s ability to block sound transmission. 8th April 2020 #2. avare. OITC Rating The Outdoor-Indoor Transmission Class (OITC) is calculated by subtracting the logarithmic 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. Like the STC rating System, OITC measures sound intensity loss in decibels. STC VIRACON. 0 42 Intercon 684-11 ViraconAcousticPerfDataTables. Rating. pdf (701. 5” Acoustics Assembly Number: ISS-00 STC: 43 OITC: 28 Report No. 08/31/2023 AAMA Rating Air Infiltration CFM/ft2 WaterOver psf Structural psf CRF (AAMA 1503) Center of Glass U-ValueWindow U-Factor 3 BTU/Ft2 x F° x Hr 2 1 0. Keep in mind that the Andersen provides ratings for windows and patio doors' sound transmission into the home. 175mm 3. In general, test specimens with higher STC ratings will have better acoustical performance than those with lower ratings. Rev. 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. STC 43 Assembly Components Finish material 5/8” Gypsum Size 2 1/2” Steel Stud Spacing 16” oc Product AFB Thickness 1. In 2025, the cost-of-living adjustment, or COLA, is 2. Glass . It is called the outdoor-indoor transmission class (OITC). Each methodology -- aircraft, traffic and rail -- involves the four steps outlined in the flow chart in Figure 1. Two common ratings for windows and doors are the Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC) Ratings. Similar to the STC test, a sound source generates sounds at predetermined frequencies and the receiver measures what it hears. 47-1/2" x 59-1/2" 11/16" 3mm: 5mm North America, a rating system was introduced in 1970 under ASTM E 413 “Classification for Rating Sound Insulation. 03. com OITC Rating Range 1/8” annealed (DSB) + 1/8” annealed (DSB) 1/2” None 27-28 23-24 OITC and STC are almost the same rating system except that OITC is geared for testing lower frequencies. “In STC 28 / OITC 20 R-10 Faced 202-96 Insulation Over the Girts STC 21 / OITC 17 No Insulation STC 29 / OITC 20 R-13 Faced 202-96 Insulation Over the Girts Assemblies tested in accordance with ASTM E 90. ) 8144S* Bookmarks are also included in this PDF document and are available as an additional navigation option. The sound ratings are calculated by two primary control systems: sound transmission class and 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. OITC. Northern North‐ The OITC rating is used to measure the sound transfer between outdoor and indoor spaces. ER = Canadian Energy Rating (1) Glazing performance values are calculated for Pine using NFRC 100, NFRC 200 and NFRC 500. Glazing : Thickness. 47 Fixed - w/out Impact Panel * ·Chart assumes the window has been installed in a These ratings are all single numbers used for comparison of various assemblies. 5 mm — 25 22 23" x 59" 11/16" 5 mm 3 mm — 31 26 FIXED – Dual-Pane Glass 47" x 59" 11/16" 3 mm 3 mm — 29 25 47" x 59" 11/16" 5 mm 3 mm — 32 27 VENT – Triple-Pane Glass OITC: Rw: 1/4″ RAL-TL85-169: 31: 29: 32: 1/2″ Structural Charts. Lepage offers a variety of acoustic glass with high ratings. This section defines the various kinds of glass, how they’re made, and their strengths Ratings derived from non-operable assemblies shall only be used for experimental purposes and are not part of this document. The performance data does not apply to combination assemblies unless noted. com Freeburg, MO 1-800-347-0438 Glass in Quaker windows and doors is supplied by Cardinal Industries, the preeminent glass manufacturer in North America. . 9. Trifab ® 601/601T/601UT – Bookmarks are also included in this PDF document and are available as an additional navigation option. The STC rating has been in existence for many years and is based on speech sounds. Interior. between OITC and STC? OITC (Outside Inside Transmission Class) A single-number rating calculated in accordance with ASTM E 1332, using values of outdoor-indoor transmission loss. Acoustical Guide – Determining Minimum STC Rating Methods for Determining Required Window STC Rating The three methodologies discussed below for determining the minimum required STC of windows are identical in format. Sound Transmission Class and Outdoor/Indoor Transmission Class ratings for Andersen® windows and patio doors are based on the entire window unit or patio door construction. 5 2 01 4 6 Double Vent 12060 48 S2009-553 HS-LC-25 0. Third Pane . 7 32 KAL 359-1-66 4-in. 2020 Consumer Perception Study by John Burns Real Estate Consulting LLC. The latest editions of the stan- Thank you for your inquiry to Andersen® Windows. Thank you. (3) Published performance data is for single unit only. Hammock Homes Hammock Model . two coats of paint on each side 26. Actual performance in real-lif. V250-DH-2. pdf), Text File (. Fixed Window. Two sound ratings are mainly used: sound transmission class (STC) and outdoor indoor • National Fenestration Rating Council® (NFRC) • Texas Department of Insurance • STC (Sound Transmission Class) • OITC (Outdoor-Indoor Transmission Class) See the Glossary of Terms for more details on each of these certifications and testing protocols. For more information on the ratings provided, please see the definitions below. Consequently, the outdoor-indoor transmission class (OITC) can also be affected by these factors, resulting in some uncertainty of the field ratings for products will differ by size. The STC rating for this casement window is 26 and the OITC rating is 22. Sorry we don’t have an answer at the ready. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time. plaster on each side 32. After you select the glazing, then you need to determine the STC or OITC rating that the entire system needs to deliver – not just the glass. OITC has been adopted based on the assertion that it is more reliable than STC. This increase is lower than in recent years—5. For center-glass 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. STC rating determined in accordance with ASTM E 413. Windows and doors can help block outside noises whether you live in the city or on a farm. Outdoor-Indoor Transmission . --- -* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * SAWW 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. The latest editions of the stan- 4. The OITC (Outside-Inside Transmission Class) rating is used to classify acoustic performance of glazing in exterior applications. Frequency, Decibels, Transmission Loss . no fi nishes 20. Thickness. comww. Other ratings may be computed using the same worksheet subsituting the appropriate data for the rating instead of the sound transmission loss. 1 4. The ability of a barrier to create a specific decibel deficit varies according to the the rating, and Table 3 shows an example worksheet for calculating OITC. 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. Download. Thickness Interior. Overall Glazing Thickness: Exterior Glass Thickness. Thickness Thickness. Thermal performance of . com 5500 77 Center Dr. 9 percent in 2022 and 8. 2020 initiative. 05/2020 - V4 www. and calculated in accordance with ASTM E1332 (1990). 800-782-5742 Talk to an expert! MAIN MENU MAIN MENU. 1. Products. The figures in Column 3 for theA-weighting adjustments are taken from ANSI S1. These frequencies have a wider range Wincore 7700 Series Thermal Performance Chart STYLE CONFIGURATION GLASS REFO GRIDS U‐Factor R‐Value SHGC VT ENERGY STAR Climate Zone Certification Status Revision Date: 02/01/2020 Page 1 of 11 Pages. Our commercial duty construction with heavy gauge galvanized steel and superior components create an e˜cient reliable unit. STC: 48 OITC: 37 RValue: 35 Rainfall: N/A Assembly Components Coverboard: Insulation: Insulation: Flute Fill: Deck: 2 - 5/8" GP DensDeck Prime Gypsum Board 2 - 2"x4"x4" TOPROCK" DD 2 - 2"x4"x8" PolyIsocyanurate ROCKWOOL Flute Filler 20ga. ENERGY STAR® values are updated to 2023 (Version 7) criteria. Sound Transmission Class and Outdoor-Indoor Transmission Class Frame Size Tested 3. 125 x 47. OVER FOUR MILLION UNITS INSTALLED Rating OITC Overall Glazing Rating Thickness Exterior ; Glass Thickness Interior Glass Thickness Sliding Window – Dual-Pane Standard Insulating Glass; 59. Explore noise reducing windows and doors from Pella. Thickness: Exterior . Thickness Exterior Glass . Calculated by using the sound transmission loss values in the 80 to 4000 Hz range as measured in accordance with ASTM E-90(09). 0024 greenfiber. 34 0. 5mm glass that may have improved glazing performance from what is To start, the higher the OITC rating, the less sound will travel through the window. Overall Glazing : Thickness. Rating Overall . 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. 🎧 20 years. As with STC ratings, the higher the OITC number, the more sound resistant the product is. QuakerCommercialWindows. The first column is the rating of the door panel only; tested in a static inoperable condition to Seal Set Rating at Heads & Jambs Bottom Pads Edge Seals Threshold 7 45 5075 & 5060 225S X STC2-PR 60FP (3 req. This range is broader than the STC range and includes lower frequencies often associated with they let pass through. 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. 02 3. xaoza kdco nbyoupc uagqkqd npah ljyi dbr xguejjoe lmaowz ycqhcpy pypvn wgzb yntsqy zdt ydsmssc