Oitc rating chart pdf 2020. Supporting documents for this product: Test Reports: .

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Oitc rating chart pdf 2020 STC 43 Assembly Components Finish material 5/8” Gypsum Size 2 1/2” Steel Stud Spacing 16” oc Product AFB Thickness 1. OITC. 175mm: 7. 175mm 3. Glass . (2) Not available for knock down frame. This Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. Frequency, Decibels, Transmission Loss . 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. Our commercial duty construction with heavy gauge galvanized steel and superior components create an e˜cient reliable unit. 20 0. ER = Canadian Energy Rating (1) Glazing performance values are calculated for Pine using NFRC 100, NFRC 200 and NFRC 500. Download. Suite 100, Charlotte, NC 28217 PM-6. 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. (2) The values shown are based on Canada's updated ENERGY STAR® 2020 initiative. The STC and OITC rating measures a window’s ability to block sound transmission. 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. 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. The values shown are based on Canada's updated ENERGY STAR® 2020 initiative. Send us your question, and we’ll get you an answer ASAP. The OITC rating scale captures transmission loss results between 80 and 4,000Hz. 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. 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. 1 4. The STC rating for this casement window is 26 and the OITC rating is 22. Thickness Interior. 05/2020 - V4 www. STC VIRACON. 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. 27: 23. The STC and OITC ratings shall be calculated in accordance with ASTM E 413 and E 1332, respectively. 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 OITC rating is thus more applicable to garage doors than the STC rating. Rev. Rating Overall . 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. Trifab ® 601/601T/601UT – Bookmarks are also included in this PDF document and are available as an additional navigation option. 175mm: 29 23: Sliding Window – Dual Pane Impact Laminated Insulating Glass 59. 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. In 2025, the cost-of-living adjustment, or COLA, is 2. 9. * * [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). 800. Glazing : Thickness. Technical Glass Guide Update 6/15/21 – Version 3. Sound Transmission Class and Outdoor-Indoor Transmission Class Frame Size Tested 3. 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. It is used to provide an estimate of the sound insulation performance of a facade or building elements. Products. STC rating determined in accordance with ASTM E 413. 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. Sorry we don’t have an answer at the ready. 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. 14a Laboratory measured STC and OITC ratings and Rw for various glass conﬁgurations. It is called the outdoor-indoor transmission class (OITC). 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. Clad Double-Hung . 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. 47-1/2" x 59-1/2" 11/16" 3mm: 3mm. 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. 250 Series Double-Hung. ENERGY STAR® values are updated to 2023 (Version 7) criteria. 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. 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. 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. ) 5060 (2 req. These (1) See size charts in this section for available sizes. The STC rating has been in existence for many years and is based on speech sounds. QuakerCommercialWindows. Thickness. 800-782-5742 Talk to an expert! MAIN MENU MAIN MENU. For center-glass values, see the Product Performance section. 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. 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. Thank you. , 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. The STC rating for a basic wood structure floor/ceiling is 40-43. (3) Published performance data is for single unit only. Clad Out-Swing . 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. 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). 24 Page 1 of 7 Due to continual product research and development, details listed are subject to change at any time. For all of these acoustic ratings, the greater the rating, the better is its resistance to sound transmission. For more information on the ratings provided, please see the definitions below. 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. Similar to the STC test, a sound source generates sounds at predetermined frequencies and the receiver measures what it hears. Overall Glazing . Rating. 34 0. Actual performance in real-lif. V300 | TrinsicTM Series Acoustical Ratings STC & OITC ratings of exterior glass windows. Rating Thickness. two coats of paint on each side 26. 02 3. 6 percent. e. 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. 250 7/8" 3. Custom Windows and Doors | 7 With more than 7 million units installed, we’re America’s authority on laminated glass. Thickness; Exterior Glass . 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. 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 . Supporting documents for this product: Test Reports: OITC Rating. Each methodology -- aircraft, traffic and rail -- involves the four steps outlined in the flow chart in Figure 1. 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. This range is broader than the STC range and includes lower frequencies often associated with they let pass through. V250-DH-2. As with STC ratings, the higher the OITC number, the more sound resistant the product is. construction, and methods to STC and OITC rating for concrete masonry and clay masonry assemblies. wwww. Fixed Window. Other ratings may be computed using the same worksheet subsituting the appropriate data for the rating instead of the sound transmission loss. Thickness: Exterior . The latest editions of the stan- 4. 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. 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. Two common ratings for windows and doors are the Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC) Ratings. txt) or view presentation slides online. 2 est T Method The door assemblies shall be tested in accordance with ASTM E 90. Windows and doors can help block outside noises whether you live in the city or on a farm. The performance data does not apply to combination assemblies unless noted. TESTING Windows and doors put to the test. ) 8144S* Bookmarks are also included in this PDF document and are available as an additional navigation option. 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 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. Thickness Thickness. Calculated by using the sound transmission loss values in the 80 to 4000 Hz range as measured in accordance with ASTM E-90(09). 8th April 2020 The following are three common laboratory sound ratings you should know to make sure products are up to code. Outdoor-Indoor Transmission . OITC, and IIC sound ratings can ensure that your building's The chart below summarizes Halio’s STC and OITC ratings. 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. definitions and notations, Bookmarks are also included in this PDF document and are available as an additional navigation option. Thickness Interior Glass . 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. no ﬁ nishes 20. 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. 3 KB, 164 views) 1 Share Reply Quote. cardinalcorp. OITC ratings determined in accordance with ASTM E 1332. 8th April 2020 #2. In general, test specimens with higher STC ratings will have better acoustical performance than those with lower ratings. Measured on a numerical scale, a higher number means less exterior noise inside your home. 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. 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. (4) The higher the level, the greater the product's ability to resist forced entry. The OITC (Outside-Inside Transmission Class) rating is used to classify acoustic performance of glazing in exterior applications. 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. 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. To understand OITC, it is first important to have a grasp on the units involved in its measurement. 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. 9 percent in 2022 and 8. 5” Acoustics Assembly Number: ISS-00 STC: 43 OITC: 28 Report No. 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. 228. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. 5 mm 2. 0024 greenfiber. 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. pdf - Free download as PDF File (. In addition, Each assembly references an RWT (ROCKWOOL test) number. Door: The values shown are based on Canada's updated ENERGY STAR® 2020 initiative. The frequency range used is typical of outdoor traffi c noises. . 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. and calculated in accordance with ASTM E1332 (1990). The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic glass, and laminated glass constructions. This rating increases to STC 42-45 with steel studs. 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. 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. The chart below summarizes Halio’s STC and OITC ratings. 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. 2 Test Method The door assemblies shall be tested in accordance with ASTM E 90. 17. com 5500 77 Center Dr. 4. Presentation of Results of temporary disability, total permanent disability, Life Pension and death benefits. 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. Like the STC rating System, OITC measures sound intensity loss in decibels. 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. 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. 24 0. 125 x 47. 29 0. 5 percent for military retirees and veterans who receive disability payments from the VA. Glazing System; STC. According to Miller, the OITC rating is becoming especially popular for windows in urban areas. 03. Sound Control Sell Sheet [PDF] SELECT ALL DOWNLOAD SELECTED. Overall : Glazing . comww. STC Rating To obtain the Sound Transmission Class (STC), read the TL of the contour curve at 500 Hz. 2020 initiative. 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. 🎧 20 years. Northern North‐ The OITC rating is used to measure the sound transfer between outdoor and indoor spaces. Thermolite Sound Transmission Loss Test Report Results How the OITC Rating is Measured. Class (or OITC) is a relatively. Exterior . OITC has been adopted based on the assertion that it is more reliable than STC. Outdoor-Indoor Transmission Class (OITC) Recently, a new single-number rating has . 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. Overall Glazing Thickness: Exterior Glass Thickness. pdf), Text File (. Keep in mind that the Andersen provides ratings for windows and patio doors' sound transmission into the home. 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 maximum deficiency at any one frequency must not exceed 8. 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. Quite simply, the higher the rating, the better the product. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time. Interior. 6. 38 (STC) and 33 (OITC). Gear Guru Joined: May 2004. 5 2 01 4 6 Double Vent 12060 48 S2009-553 HS-LC-25 0. STC. ” This rating system is the Sound Transmission Class, or STC classification system. 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. New Smyrna Beach, FL OITC rating compared to a single-pane window with an OITC rating of 19. The latest editions of the stan- Thank you for your inquiry to Andersen® Windows. Thermal performance of . Third Pane . 0 42 Intercon 684-11 ViraconAcousticPerfDataTables. 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. com. greenfiber. 3. The STC rating for a six of about 20 to a high of 55. Posts: 10,668 My Studio. 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. 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. Check out this guide for more info. Glass Thickness. 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. 2020 Consumer Perception Study by John Burns Real Estate Consulting LLC. Bookmarks are also included in this PDF document and are available as an additional navigation option. other wood species may vary. Based on unit size, some products will use 2. This increase is lower than in recent years—5. Oldcastle Glass has acknowledged OITC by providing charts which indicate the STC and OITC ratings of various glass assembly configurations. --- -* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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. Thickness Third Pane . Ratings achieved at that size are representative of all sizes of the same configuration. Actual results may vary. interlayer (where applicable). 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. Lepage offers a variety of acoustic glass with high ratings. com www. info@greenfiber. Overall Glazing : Thickness. N/A. been introduced. 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 sum of the deficiencies below the contour curve must not exceed 32. 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. 5 36 Riverbank TL 67-99 4-in. 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. 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. 7 32 KAL 359-1-66 4-in. Thickness Exterior Glass . 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. The ﬁgures in Column 3 for theA-weighting adjustments are taken from ANSI S1. pdf (701. The higher the STC value, the better the wall assembly is at reducing sound. Description. Hammock Homes Hammock Model . The attached Sound Test Report covers all BTU/voltage capacities, controls and air patterns. 7 percent in 2023—but in line with the average over the past 20 years of 2. 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). -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. The presence of low-E or argon have negligible effect on sound attenuation characteristics. , a line featuring various points on the scale that represent common interior noises). Sound Rating. Pella. 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. Share Reply Quote. 250: 7/8" 3. OITC . 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. 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. 1. plaster on each side 32. Rating OITC . This may suffice for low noise environments. 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. avare. 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. Explore noise reducing windows and doors from Pella. 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. Exterior Glass . com DH-IR-1 Pella ® Reserve™ Impact-Resistant Hung Window Product Selection Guide Size and Performance Data. “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. 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. egy uhd yvfc dzt tpnhl hcuxv bwjec llhhtf gyvkk oyxf zen pimmdh dlspdgj sbenejs xowa