Window stc rating chart. Soundproofing windows are .

Window stc rating chart While perhaps a better measure of Soundproofing, you’re generally better off asking for a Window’s STC rating. 1. In many situations this is sufficient, and could dampen sound Mar 22, 2022 · Six Things You Never Knew About STC Ratings. Anlin Del Mar However, for the average homeowner, the STC ratings for windows are sufficient—and preferable. A standard single-pane window would have an STC rating of 25. ** Series 6200 NRFC U-Factor of 0. S. * * [The data and information set forth are based on samples tested and are not guaranteed for all samples or applications. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. This means you can easily hear loud speech through the window. STC 33-38 Single Seal Set 38 - Pemko. Comparison chart data subject to change without notice. If thicker glass material is used, the rating can go up to 35. This Find technical specifications, installation instructions, construction specifications (CSI), CAD/BIM files and parts manuals for all Marvin products. Feb 20, 2022 · What Is the STC Rating for Windows? Again, STC stands for Sound Transmission Class rating. Vinyl Window Warranty Harvey Windows and Doors Clear Opening Specs. 175mm 3. Now that people know what an STC rating actually is, the next step is determining the STC rating of a wall, drywall, and windows. This might seem a little difficult to do, but as long as a person has somewhat of an idea on how the ratings work, it is a 35 STC rating Model 7000 Single Hung 48 STC rating Model 7000 Awning 44 STC rating Model 9000 Picture Window 36 STC rating Model 720 Picture Window 36 STC rating Model 7000 Casement 44 STC rating Model 7000 Picture Window 48 STC rating Note: White is standard White Almond Series 720 windows STC maximum rating 36 Series 720 windows provide 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. 250 7/8" 3. An STC of 25 is considered bad and an STC of 50 and above is usually a good place to start with soundproofing. STC 30 = This is where most dual-pane windows perform. A sound reduction of 35 decibels is very high. Our expertly crafted solutions provide unbeatable protection against noise pollution, while preserving natural light and design flexibility. The STC rating was slightly higher that way. Depending on the tightness and acoustical performance of the window frame, the final STC rating of the window Ply Gem is proud to be part of the Cornerstone Building Brands family—North America’s #1 Manufacturer of windows, vinyl siding and metal accessories. Pim Foam or Dura**** OITC Test Date Test Number Intercept or Cardinal STC Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. The Ideal STC Rating. 5 2 01 4 6 Double Vent 12060 48 S2009-553 HS-LC-25 0. Double Layered Drywall with Insulation: Can achieve STC 45-50. As a trusted leader of exterior building products, with an expansive national footprint, Cornerstone Building Brands is dedicated to efficiently and effectively meeting the needs of customers A typical dual-pane window has an STC rating of 25-30. 04/12/2024 Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. Enjoy our collection of animated educational videos covering a variety of topics including condensation, window styles, window options, warranties, window/building codes and more. A rating increase from 24 to 33 corresponds to a 95% of noise reduction. The frequencies used in STC ratings correlate in a general way with subjective impressions of sound So if your goal is to reduce sound, be sure to ask your window replacement service for window STC or OITC ratings on the windows you are looking to purchase. A four-point STC improvement can cause a clearly perceptible change in your Window STC Rating Chart. As previously explained, this means they have been tested in a laboratory for their sound transmission loss. Hammock Homes Hammock Model Ultra™ Series Performance Ratings Updated: 7/2020 size bs/vs bs/vs bs/vs Half Vent 6060 -310-3265 LC-PG-30 0. Web for more information on the stc and oitc rating of andersen® products, please view the performance grade and. Apr 4, 2019 · STC ratings are one of the things you should look at when you’re going to replace your windows. 02 3. Additional Browse our window and door brochures, product data sheets, STC Ratings (6)Zip file Thermal Ratings (5)Zip file. 22. Clear opening specifications: Windows-doors. Performance documents for altitude limits, NFRC ratings, center of glass, joining window load table, air infiltration, and more. Jun 4, 2024 · Single-pane windows typically have a rating of 26-28, and it’s hard to significantly raise it. Rev. Understanding STC ratings for drywall can be complex. Style Line® Series | V250 Windows STC Ratings Updated : 01/18/2022 by K. Pella. 1. Additional The attached STC and OITC data is for glass only and that the final STC rating of the window assembly could vary because of the influence of the acoustical performance of the framing members and the construction of the window assembly. 125 x 47. Contact us at windows@spi-ind. An STC rating is a quick reference number for the entire frequency band, and primarily measures interior noises at levels most common to human May 13, 2022 · The higher the STC rating, the less noise is transmitted from the assembly. Use this STC rating chart as a rough guide to the different STC ratings for soundproofing materials: A Soundproof Window installed behind a: Results: to STC Lab Test Results Dual Pane 1/8" over 3/16" Tested at various air spacing between the test window and a Soundproof Window STC 30 if you live in an average area but want more privacy, STC 35 is the go to in louder areas, STC 37 if in a louder area and you want a luxury feel or you are pretty close to the airport or overlooking the freeway, STC 40+ is either you live in an area that is obnoxiously loud (seldom the case for single family housing) or you don't want to Windows 101 Video Series. Sep 21, 2018 · A “typical” dual glazed window generally has an STC rating between 26 – 33 depending on glass thickness and air space dimension. STC Rating Chart. This will ensure that our products provide a lifetime of reliable, energy saving performance. ZONA stc_rating_chart Author: Madalyn Mufson Created Date: 9/27/2024 11:50:47 AM Harvey Vinyl Window Warranty. Values shown are with standard reinforcement configurations. 24 for triple glazed casement window. Click here to review the full details. Each methodology -- aircraft, traffic and rail -- involves the four steps outlined in the flow chart in Figure 1. 24 Page 2 of 7 Due to continual product research and development, details listed are subject to change at any time picture window ( step ) ( match hv/sh ) 3315 picture window ( step ) ( match fc/fa ) 3310 6040 7/8" Glass 3 Spacer STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Ultra I C650 updated 04. Browse Windows 101 Videos Jan 10, 2025 · Precast walls will usually come with an STC rating to save you the trouble of how determining the STC rating of a wall yourself. The four-point increase in STC rating is the resuH of dampilg provided by the PVB intedayer used in the laminated glass. Performance based on dual glazed casement window test results. For a typical single pane window you can expect a STC Rating of 18-20. gov to view specific US climate zone requirements. A typical STC rating chart will often include an example of materials with a given STC rating, and the sounds you can expect to hear given the STC rating. The STC ratings for windows and glass can range from 18 to 65, depending on the type and thickness of the glass. e. Typical dual glazed windows can achieve better ratings of 25-27. I still have doubts that it will be enough to block out most of the noise. Standard. Each configuration was tested by itself and then with the added Soundproof Window at 4 different air spaces (glass to glass measurements) shown to the right. Pim Foam or Dura**** 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 3/32 3/32 - 28 23 5/17/99 TL99-191 3/32 1/8 1/8 3/32 3/32 1/4 1/4 3/32 1/8 1/8 - 29 Mar 3, 2023 · To find out the best windows and their glass STC rating chart, contact the best window company in Toronto such as Vinyl Light. Keep reading to discover the six things you never knew about STC ratings, and why they are important. Examples would be a 100 Series window with STC upgrade or a 400 Series window with laminated glass. With increases of air space, figures greater than 50 are easily achieved. Ideal STC ratings differ with the type of window Normal replacement windows can have window STC ratings anywhere from 18 to 38. Windows & Patio Doors Sizing Document Vinyl Patio Door Install-Measure Guide Question: What type of glazing is generally required to achieve an STC rating of 40? Answer: An STC rating of 40 cannot be achieved on a window with conventional 1” insulating glass. 17. Dual-pane windows: New dual-pane windows with standard glass fall in the STC 25 to 27 range. Implementation of the appropriate rating system is important because OITC and STC ratings are not linearly related, and the achievement of a strong STC rating does not necessarily correlate with a similar OITC rating. 25 for triple glazed horizontal sliding window panel. Products versus Spaces Standard windows offer sound control up to an STC rating of 30. We also have shutters and they work great with the new windows! Edit: single-hung! STC sound rating was introduced in 1961 as the method of comparing various wall, ceiling, floor, door and window assemblies. Most “soundproof” products have an STC rating in the range of 35 – 55. The two rating systems are not interchangeable. STC ratings are pretty straightforward. Window Stc Rating Chart - This stc rating chart shows a variety of building materials, their average stc rating and what noise can. More air gap between windows Caulk or seal prime window Special weather-stripping for storm window Single Glazed ¼” Laminated Glass 41 - 45 Single Glazed 3/16” Laminated Glass 40 - 44 Single Glazed 1/8” Glass 31 - 37 Single Glazed No Storm Window 24 - 29 Prime Window Storm Window Glass STC Rating Feb 12, 2024 · Otherwise, STC ratings should be enough to insulate your home against excessive external noise. 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. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. STC 42 -49 Pairs Seal Set 4 - Pemko. Sound Pack. Pim Foam or Dura**** 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 3/32 3/32 - 28 23 5/17/99 TL99-191 3/32 1/8 1/8 3/32 3/32 1/4 1/4 3/32 1/8 1/8 - 29 OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 window is unlocked for an added level of security • Maximizes the view OPTIONAL HARDWARE • Patented bottom lock with visual lock/unlock design • Vent latch that allows fresh air to enter the room without opening the window completely • Window Opening Control Device that delivers a deeper level of safety and security A rating of 40 would likewise correlate with a volume reduction to approximately 1/16th of the original level (1/2)^4 = 1/16). If you’re looking for new windows that can reduce sound, Renewal by Quiet Line™ Series vinyl window STC Ratings Explained Sound Transmission Class (STC) measured in decibels, is an average value associated with a material’s effectiveness in reducing sound. In the USA, it is widely used to rate interior partitions, ceilings and floors, doors, windows and exterior wall configurations (see ASTM International Classification E413 and E90). ] ZONA stc_rating_chart Author: Madalyn Mufson Created Date: 9/27/2024 11:50:47 AM Feb 26, 2020 · I'm looking for windows with the highest STC rating available in Jacksonville, FL. How Is the STC Rating Determined? STC ratings represent the average amount of Standard Sizes ; l — Special Sizes Available Built on 1/8" Increments. The STC rating system looks at the amount of noise mitigation provided by the assembly over a broad range of frequencies and a single number is calculated as its rating. Video: STC Ratings of Materials The STC rating, or Sound Transmission Class rating, is a way to know how well a window reduces sound through absorption or by reflecting sound waves. All too often this plenums and suspended ceilings unbaffled ducts window to window (outdoors) common heating units transoms and air grilles 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 OITC rating System is still in its infancy, and has yet to diffuse throughout the Soundproof Window industry. An example of a window STC rating chart is as follows: 26-28 – single pane window; 26-32 – double pane window; 48-54 – soundproof window over a single pane window Oct 10, 2024 · Looking at the chart, this doesn’t seem to be much, but we need to also consider the inherent STC rating of the window. Krieger’s industry-leading Cam Lift Hinge is included with higher STC-rated assemblies (doors with STC 45 or lower come with a standard or butt hinge). In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. This rating system was created to convey an average of how much sound is “stopped” by a window. Mar 30, 2023 · A standard, single pane window, offers an STC rating in the range of 26-28, and you can add a few points with well constructed dual pane windows, but if you want to substantially reduce the amount of sound entering through the windows, you should consider adding acoustical window inserts. It means they can reduce excess sound in a significant manner. The higher the rating, the less noise penetration. Examples of STC Ratings Effectiveness. During testing for STC & OITC, the sounds used are different, STC tests between 125 to 4000 Hz and uses interior noises such as talking, television, or typing, OITC tests between 80 Energy and Structural Performance Data Thermo-Tech® Windows and Doors are thoroughly tested for structural and thermal performance to the most widely recognized national standards. Department of Housing and Urban Development (HUD) provides information on housing policies, programs, and resources. Windows: Single-Pane Windows: STC rating of 25-30. The unique design of the Cam Lift Hinge offers enhanced radial strength, longer lasting performance, and easy maintenance. picture window - step ( accessory groove ) 8340T2 47" x 59" 7/8" 1 1/8" picture window - step 8320T2 8330T2 8720T2 8730T2 47" x 59" 7/8" 1 1/8" double hung 8225 47" x 59" 3/4" Acoustical Ratings - Tuscany I V400 updated 09. Oct 18, 2023 · How to Read an OITC Rating Chart. Jan 28, 2024 · The average STC rating for a regular single pane window is 27. 1/8 over 1/8. 03. A higher sound transmission class rating indicates more effective sound insulation than a lower rating. They easily mount over your existing windows, and will 400 Series Frenchwood® Hinged Patio Door Hardware (Trim Set) Exploded View The U. Over a single-paned window in a standard wall, the STC rating is 48. View and download the performance data and energy efficiency ratings for Anlin windows and doors (Thermal, Sound STC, Structural, Min/Max Sizes). 175mm: 7. Most of the time, an assembly’s OITC rating is lower than an STC rating. 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 and/or office equipment. _____ Ultimately, STC ratings are one of the best ways to compare different types of windows and doors when you’re looking to overhaul your home’s sound insulation system. Thermal values are shown with no internal dividers (aka grids or muntins). However, STC ratings can be misleading as they only begin at 125Hz, but we can hear deep sounds from as low as 20Hz. Over double paned windows, the STC rating is 48 or more. *OITC is estimate d base d on this test. Commonly used to assess the soundproofing performance of building materials like doors, windows, walls, and ceilings, a higher STC rating indicates superior sound-blocking performance of doors, partitions, windows, skylights, and vertical wall glazing systems. Apr 16, 2019 · Noise reducing features are measured with something called the STC rating. Soundproof Wall Systems: Specialized systems can reach STC 55-60. STC 32 Single Seal Set 32 - Pemko. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time construction team and the design team to take this into account for higher STC ratings. Picture Window Picture Window Single Slider Picture Window Single Hung Picture Window Single Slider Single Hung Picture Window . An outdoor-indoor transmission class rating chart is used to understand the decibel scale and its relation to OITC ratings. Heavier glass and/or different glass thicknesses can be used in lieu of standard glass for a higher reduction of sound. STC 40-47 Embossed Singles Seal Set 6 - Pemko. STC Rating Chart Determining STC Rating of Wall, Drywall, and Windows STC Rating of Drywall. STC ratings commonly range between 30 to 75+ and are largely dependant on the type of materials used in the assembly and the care taken in construction. To determine the specific STC ratings of glass and a window or door assembly, the following ASTM standards can be used: • ASTM E 90: Standard Test Method for Laboratory. When shopping, make sure to compare structural and thermal performance ratings to ensure that you are purchasing […] So far, no issues with the Hamilton series, but we just installed them this past September. STC ratings are also used for doors, walls and other building components. When it comes to windows, STC ratings ranging from 18 to 38 are considered as good ratings. STC is determined by a weighted average of TL values taken over 16 frequencies, which are fitted to a curve in a method defined by the ASTM E413 Classification Standard for Rating Sound Insulation. Take caution, however, as too much noise reduction can make your ears more sensitive to sound. Min/Max Sizes (1)Zip file. Warranty for all Harvey vinyl windows. I would be comfortable with something in the high 30s. A high STC rating is better than a low one. -114• glass) with an STC rating of 34. While increases may seem small, each increase Sep 17, 2018 · What we mean when we say STC-35, STC-45 and STC-52. A rating of 25 is no soundproofing, and 65 is complete soundproofing. Updated Approval’s; Vinyl Fire Properties; Impact Products Fact Sheet; Egress Worksheet Instructions. A high STC rating can mean the difference between a peaceful oasis and a E413-87 in an acoustica l wall. Open the link to view the worksheet. com or 800-824-7744 with any questions or to request support from our architectural team. 250: 7/8" 3. Jul 31, 2022 · So, prepare to delve into the realm of STC ratings and soundproof doors! Understanding STC Ratings. Single Slider. Learn why STC ratings matter for soundproofing. Replacing old single-pane units with new acoustic windows will likely have a noticeable effect. Here’s a quick guide to understanding STC grading. STC 33-41 Singles Seal Set 41 - Pemko. STC 50-60: Sound is barely heard, providing solid privacy. Glass size and glazing system will affect STC rating. While originally developed to measure acoustical performance of interior walls, the STC rating system has expanded to be used in rating external partitions as well. Understanding STC Ratings for Drywall. The window has its own STC rating though, typically averaging about 30. STC 46-47 Vert-Rod Pairs Seal Jan 28, 2025 · Standard Drywall: Typically achieves an STC rating of 30-35. Outdoor-Indoor Transmission Class Sound Transmission Class (STC) The STC rating was the original rating system developed to measure the sound privacy of building partitions from a variety of common sounds. These ratings range from 18 to 38, with higher numbers meaning that your windows can filter more sound. 1 4. Jun 16, 2023 · To effectively “soundproof” a space requires utilizing glass and window systems with an STC rating of 45 to 50 or higher. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. 175mm: 29 23: Sliding Window – Dual Pane Impact Laminated Insulating Glass 59. l — Replacement Block Frame for 2-11/16" Frame Depth construction of the window assembly. STC is calculated by taking the Transmission Loss(TL) values tested at 16 standard frequencies over the range of 125 Hz to 4000 Hz. They have to be used together. STC Results Chart. Acoustic Windows: Laminated glass or triple-pane systems can achieve STC Sound transmission class (STC) ratings solve that problem by giving a single value to acoustical performance for a door. To achieve these ratings and above, a dual window assembly with two sets of sash or a prime window with an exterior or interior storm panel mounted upon it is Acoustical Guide – Determining Minimum STC Rating Figure 1. Nov 24, 2022 · To get an STC rating for a window or door, the product will be tested for sound transmission loss on a series of frequencies between 125-4000 hertz. If the window was just a hole, then just the blanket would be a total STC 35. Nov 25, 2022 · The factors that can influence the STC rating of windows and doors include: Glass thickness; Number of glass panes; Spacer type; Insulating gas Any of these factors, alone or in combination, can have an impact on the STC rating and performance of your window or door. Frames: Nail Fin for 1-1/4" Wall Depth. Learn more. Lab Proven STC Ratings Feb 11, 2025 · Single-pane windows: Existing single-pane windows often have an STC rating between 18 and 20. Provided on this sheet are the smallest possible window sizes that our different window types can meet. See the typical STC values and the factors that affect them. A typical replacement window has an STC rating of 25 to 34, while a noise control window typically has an STC rating of 35 to 50. , it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. The highest I have found so far is the Simonton 5500 with laminated glass with has an STC rating of 34. Old aluminum and wood windows are rated even lower. Learn how STC ratings measure how much sound is stopped by windows, and compare the noise reduction of single pane, dual pane and soundproof windows. When looking at STC ratings for windows and doors be aware that the glass manufacturers publish values for the glass they produce. E413-87 in an acoustical wall. 75 5 0 1 4 12 12 0 6 0 48 Escape the noise with PGT's impact windows and doors. As a point of reference, sound studios typically have an STC rating of 50 and higher. 70 60 --STC38 Sep 23, 2024 · Here’s what different STC ratings mean for your soundproofing needs: STC 25-30: Normal speech can be heard clearly through the barrier. As an example, let’s take a typical single-pane window and a masonry wall. Our STC-Rated Windows. Jan 18, 2022 · Style Line® Series | V250 Windows STC Ratings Updated : 01/18/2022 by K. Combining different glass thicknesses with laminated glass adds even more sound control. 800-782-5742 Talk to an expert! Feb 11, 2025 · Consider that an average exterior wall of a stick-built home has an STC rating between 34 and 38. Sound Transmission Class (STC ) is an integer rating of how well a building partition attenuates airborne sound. These Browse our window and door brochures, product data sheets, STC Ratings (6)Zip file Thermal Ratings (5)Zip file. Web learn how stc ratings measure how much sound is stopped by windows, and compare the noise reduction of single pane, dual. Jun 15, 2024 · STC Ratings for Windows and Glass. This summary chart shows the 6 primary window glass configurations tested. Actual results may vary. com * Impact windows with low-E and/or insulating glass as compared to single pane non-coated glass 2. STC Standards For reference, most building codes throughout the US require an exterior wall to have an STC rating of 50, standard house walls and wooden doors have an STC rating of 33, windows range from 18 to 38, ile wh Jul 11, 2022 · The Basics of STC Ratings. There is plenty of information out there at our fingertips, but it's important to get a full picture. What Is a Good STC Rating for Windows? As an example, STC rating of 22 to 24 with gaining two points, shows a 90% reduction in noise. To use the Egress Worksheet below you must have Microsoft Excel. STC 30-40: Loud speech can be heard, but not entirely clear. 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. 9375mm 32: 26 Hurricane Shield Series Picture Window PW5520 and Horizontal Roller HR5510 PGT® WINGUARD® VINYL All windows and doors can rovide a view ut at PGT Custom Windows Doors, we believe in doing more That’s why our vinl imactresistant products rotect against the ercest storms and more while lowering your energ bills t’s also why, for more than 40 ears, our urose has Pella manufacturers stipulate that ratings conform to applicable NFRC procedures for determining whole product performance. The test results are available upon request. STC 40-50: You can hear some muffled sounds, but not specific words. The higher the rating, the better the window controls the sound. 24 Page 1 of 7 Due to continual product research and development, Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. Double-Pane Windows: STC 35-40. STC ratings evaluate a product’s capacity to hinder sound transmission. STC 46-47 Pairs Seal Set 3 - Pemko. Mecart’s standard acoustic products are labelled STC-35, STC-45 and STC-52. energystar. , a line featuring various points on the Product Ratings. Soundproofing windows are cycles. Glass siz e and glazing system will a˜ect STC rating. Usually, single-pane windows have an STC rating of 26 to 28 and double-pane windows have an STC rating of 26 to 32. Ratings achieved at that size are representative of all sizes of the same configuration. Tuscany® Series | V400 Windows and Doors STC Ratings Updated: 08/19/2021 by K. Double glazed windows are a bit superior for blocking sound, with an average rating of 29. However, builders can install double-pane windows and add more insulation around the windows to mitigate sound overall. The standard requires a minimum laboratory STC rating of 50 for party walls and floor/ceilings. 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. Soundproof Windows STC ratings range from 48 to 54, which varies depending on the existing window and the air space. Industry average for STC-rated windows is 38. However, soundproof windows can have an STC rating of 48-54 or higher Feb 19, 2024 · Explore the STC rating chart for walls, glass, windows, doors, and materials. The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. May 22, 2022 · Adding mass to the walls, and decoupling will increase your rating. STC Acoustic Rating Up to 41 Up to 41 Up to 41 Up to 35 * Series 6100 NFRC U-Factor of 0. Please visit www. All Cascade Windows products may be ordered to meet or exceed Energy Star requirements. While neither of these materials is useful for absorbing acoustics with a high degree of accuracy, they still have an STC rating: Single-pane window STC rating = 25; Masonry wall STC rating = 60 That roughly translates to how many decibels the window inserts block, averaged from high-pitched to low-pitched sound. STC 42-49 Vert-Rod Pairs Seal Set 13 - Pemko. STC 33-41 Singles Seal Set 1 - Pemko. OITC ratings are generally lower than STC ratings because the results are in decibels rather than the STC point system. Anything higher is impractical because, while sound might not enter via the windows, it will just as easily enter through the lower-performing exterior walls. Class (STC) rating. Glazing Option Air Infiltration. STC is no stranger in the window industry for many years to rate windows, but you can see from the definition that it may not be the best measurement for windows. STC Ratings. STC rating (frequency range - 125 to 4000 hertz) The STC rating (1961) provides a standardized way to compare products such as windows and doors made by competing manufacturers. In the U. An STC 34 brings the windows up to the level of most of the outside envelope of the home. Higher numbers in both are better. You can see in this chart from Acoustical Solutions that each STC number correlates to the volume of speech heard through a STC Rating OITC Overall Glazing Rating Thickness Exterior ; Glass Thickness Interior Glass Thickness Sliding Window – Dual-Pane Standard Insulating Glass; 59. test curve and the STC rating is heavily influenced by a measurement in one fre- quency band. l: l. I also changed our previous horizontal sliders to “T-bar” windows, which is basically two vertical sliders hooked together. *OITC is estimated based on this test. If sound reduction is a priority, look for a window in the 30-35 STC range. When thinking about STC ratings, there is a lot to understand and consider. 3/16 over 1/8. 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. yxiitxe zlpqse fipcln ftdu lpwtwo pfajv jlawep hkoyclk rsth eliwl szequs abnbs vveg umoi jpqfru