Window stc rating chart. Learn why STC ratings matter for soundproofing.
- Window stc rating chart STC 42 -49 Pairs Seal Set 4 - Pemko. A higher sound transmission class rating indicates more effective sound insulation than a lower rating. 03. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. STC 40-47 Embossed Singles Seal Set 6 - Pemko. A high STC rating can mean the difference between a peaceful oasis and a Jan 11, 2025 · Single-pane windows: Existing single-pane windows often have an STC rating between 18 and 20. This summary chart shows the 6 primary window glass configurations tested. 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 Normal replacement windows can have window STC ratings anywhere from 18 to 38. However, for the average homeowner, the STC ratings for windows are sufficient—and preferable. 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. Picture Window Picture Window Single Slider Picture Window Single Hung Picture Window Single Slider Single Hung Picture Window . Replacing old single-pane units with new acoustic windows will likely have a noticeable effect. Over double paned windows, the STC rating is 48 or more. I still have doubts that it will be enough to block out most of the noise. Higher numbers in both are better. 1 4. Jan 28, 2024 · There are many ways to securely and successfully soundproof both walls and doors by relying on STC ratings for materials that you’ll use. Click here to review the full details. 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. Specific products for these building materials will vary, so talk to the manufacturer to get the exact STC rating before purchasing. The highest I have found so far is the Simonton 5500 with laminated glass with has an STC rating of 34. As previously explained, this means they have been tested in a laboratory for their sound transmission loss. Explore noise reducing windows and doors from Pella. 250 7/8" 3. com * Impact windows with low-E and/or insulating glass as compared to single pane non-coated glass 2. 04/12/2024 Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. When looking at STC ratings for windows and doors be aware that the glass manufacturers publish values for the glass they produce. The higher the STC rating, the better the building reduces sound transmission. Glass size and glazing system will affect STC rating. 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. For a typical single pane window you can expect a STC Rating of 18-20. ] Ultra™ Series Performance Ratings Updated: 7/2020 size bs/vs bs/vs bs/vs Half Vent 6060 -310-3265 LC-PG-30 0. Our STC-Rated Windows. Department of Housing and Urban Development (HUD) provides information on housing policies, programs, and resources. I would be comfortable with something in the high 30s. Examples would be a 100 Series window with STC upgrade or a 400 Series window with laminated glass. Oct 21, 2013 · How effectively a wall or floor reduces airborne sound is measured by STC ratings (sound transmission class). Updated Approval’s; Vinyl Fire Properties; Impact Products Fact Sheet; Egress Worksheet Instructions. 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 higher the rating, the better the window controls the sound. The higher the STC rating, the more effective the window is. 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 Escape the noise with PGT's impact windows and doors. … construction of the window assembly. Soundproof Windows STC ratings range from 48 to 54, which varies depending on the existing window and the air space. STC is widely used to rate interior partitions, ceilings/floors, doors, and windows. 17. 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 Performance documents for altitude limits, NFRC ratings, center of glass, joining window load table, air infiltration, and more. 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. Mecart’s standard acoustic products are labelled STC-35, STC-45 and STC-52. In many situations this is sufficient, and could dampen sound STC Results Chart. 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 May 22, 2022 · Commonly called acoustic laminated insulated glass, the windows provide an STC of 39 to 54 or greater. Dual-pane windows: New dual-pane windows with standard glass fall in the STC 25 to 27 range. Comparison chart data subject to change without notice. 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. Jun 15, 2024 · The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. Anlin Del Mar 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. If sound reduction is a priority, look for a window in the 30-35 STC range. The Ideal STC Rating. Standard. 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. 02 3. Single Slider. Sound Transmission Class and Outdoor-Indoor Transmission Class Ratings achieved at that size are representative of all sizes of the same configuration. *OITC is estimated based on this test. This 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. Hammock Homes Hammock Model Window Stc Rating Chart - This stc rating chart shows a variety of building materials, their average stc rating and what noise can. 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). 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 Feb 12, 2024 · Otherwise, STC ratings should be enough to insulate your home against excessive external noise. Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. The STC rating figure represents approximately the decibel reduction in noise that the assembly can provide. Windows and doors can help block outside noises whether you live in the city or on a farm. Heavier glass and/or different glass thicknesses can be used in lieu of standard glass for a higher reduction of sound. Thermal values are shown with no internal dividers (aka grids or muntins). Clear opening specifications: Windows-doors. 7 %µµµµ 1 0 obj >/Metadata 422 0 R/ViewerPreferences 423 0 R>> endobj 2 0 obj > endobj 3 0 obj >/ExtGState >/XObject >/ProcSet[/PDF/Text/ImageB/ImageC May 22, 2022 · Adding mass to the walls, and decoupling will increase your rating. 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. Jan 11, 2025 · Consider that an average exterior wall of a stick-built home has an STC rating between 34 and 38. Each methodology -- aircraft, traffic and rail -- involves the four steps outlined in the flow chart in Figure 1. -114• glass) with an STC rating of 34. Window STC Rating Chart. 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. Provided on this sheet are the smallest possible window sizes that our different window types can meet. The higher the STC rating, the better the sound isolation. STC ratings are pretty straightforward. 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. 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. 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. 175mm: 7. Pella manufacturers stipulate that ratings conform to applicable NFRC procedures for determining whole product performance. 70 60 --STC38 STC Acoustic Rating Up to 41 Up to 41 Up to 41 Up to 35 * Series 6100 NFRC U-Factor of 0. This rating system was created to convey an average of how much sound is “stopped” by a window. Pella. STC 46-47 Vert-Rod Pairs Seal 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). A rating increase from 24 to 33 corresponds to a 95% of noise reduction. Windows & Patio Doors Sizing Document Vinyl Patio Door Install-Measure Guide Ratings achieved at that size are representative of all sizes of the same configuration. You can see in this chart from Acoustical Solutions that each STC number correlates to the volume of speech heard through a Product Ratings. , a line featuring various points on the STC 32 Single Seal Set 32 - Pemko. To use the Egress Worksheet below you must have Microsoft Excel. STC ratings evaluate a product’s capacity to hinder sound transmission. These ratings range from 18 to 38, with higher numbers meaning that your windows can filter more sound. All Cascade Windows products may be ordered to meet or exceed Energy Star requirements. 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 For example, when a window is open, you’re at 0 STC, hearing all the sounds from outside. Learn why STC ratings matter for soundproofing. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time 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 STC Rating OITC Overall Glazing Rating Thickness Exterior ; Glass Thickness Interior Glass Thickness Sliding Window – Dual-Pane Standard Insulating Glass; 59. This will ensure that our products provide a lifetime of reliable, energy saving performance. 25 for triple glazed horizontal sliding window panel. STC 46-47 Pairs Seal Set 3 - Pemko. V3000 Series Windows (8) Restorations Series V5500 Windows (7) Sunrise Series V4500 Windows (7) V2000 Series Windows (7) Vanguard Series V4550 Windows (7) A2000 Series Sliding Glass Doors (1) A3000 Series Sliding Glass Doors (1) Restorations Series V5500 (1) Sunrise Series V4500 Sliding Glass Doors (1) V2000 Series Sliding Glass Doors (1) V3000 E413-87 in an acoustica l wall. 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 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. 24 Page 1 of 7 Due to continual product research and development, Standard windows offer sound control up to an STC rating of 30. STC is calculated by taking the Transmission Loss(TL) values tested at 16 standard frequencies over the range of 125 Hz to 4000 Hz. 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 Sep 21, 2018 · A “typical” dual glazed window generally has an STC rating between 26 – 33 depending on glass thickness and air space dimension. 1/8 over 1/8. 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. Single-pane windows have an STC rating of 18-20, and double-paned windows can achieve STC ratings of 28-32. STC 33-41 Singles Seal Set 1 - Pemko. Values shown are with standard reinforcement configurations. 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. When purchasing windows to reduce the sound transmission look for those with a higher STC rating. Ideal STC ratings differ with the type of window Contact us at windows@spi-ind. 125 x 47. Soundproofing windows are Windows 101 Video Series. 175mm 3. STC 42-49 Vert-Rod Pairs Seal Set 13 - Pemko. 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 Jun 16, 2023 · To effectively “soundproof” a space requires utilizing glass and window systems with an STC rating of 45 to 50 or higher. Sound Transmission Class and Outdoor-Indoor Transmission Class Tuscany® Series | V400 Windows and Doors STC Ratings Updated: 08/19/2021 by K. STC 33-38 Single Seal Set 38 - Pemko. They have to be used together. 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. construction team and the design team to take this into account for higher STC ratings. 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 What is STC? STC ratings measure sound level on one side of a building’s surface (wall, ceiling, window, etc. Jan 28, 2025 · As applied to windows and patio doors, the STC measures (in decibels) how much sound is lost from one side of the window or patio door unit to the other. Vinyl Window Warranty Harvey Windows and Doors Clear Opening Specs. 3/16 over 1/8. com or 800-824-7744 with any questions or to request support from our architectural team. %PDF-1. 1. Acoustical Guide – Determining Minimum STC Rating Figure 1. Commonly used to assess the soundproofing performance of building materials like doors, windows, walls, and ceilings, a higher STC rating indicates superior sound-blocking Sep 17, 2018 · What we mean when we say STC-35, STC-45 and STC-52. The two rating systems are not interchangeable. Now that people know what an STC rating actually is, the next step is determining the STC rating of a wall, drywall, and windows. Sound Pack. Rev. Jun 4, 2024 · Single-pane windows typically have a rating of 26-28, and it’s hard to significantly raise it. The STC rating was slightly higher that way. Enjoy our collection of animated educational videos covering a variety of topics including condensation, window styles, window options, warranties, window/building codes and more. 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). Sound transmission class (STC) is a single number rating of sound isolation of a building wall assembly. 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. V250-SW-2. 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. Sound is measured in decibels (dB). 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. For this reason, casements, awnings and fixed windows are the ideal operating types. 250 Series Sliding Window. STC 30 = This is where most dual-pane windows perform. Lab Proven STC Ratings 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. 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. I also changed our previous horizontal sliders to “T-bar” windows, which is basically two vertical sliders hooked together. How to Increase Window STC Rating. S. Harvey Vinyl Window Warranty. While perhaps a better measure of Soundproofing, you’re generally better off asking for a Window’s STC rating. 175mm: 29 23: Sliding Window – Dual Pane Impact Laminated Insulating Glass 59. However, in this article, our main focus will be window soundproofing, since most of the noise travels through the windows. energystar. The window has its own STC rating though, typically averaging about 30. Warranty for all Harvey vinyl windows. Open frame no sash available for PTAC (Packaged Terminal Air Conditioner) applications. Combining different glass thicknesses with laminated glass adds even more sound control. Feb 19, 2024 · Explore the STC rating chart for walls, glass, windows, doors, and materials. Examples of STC Ratings Effectiveness. If the window was just a hole, then just the blanket would be a total STC 35. 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 Style Line® Series | V250 Windows STC Ratings Updated : 01/18/2022 by K. As a point of reference, sound studios typically have an STC rating of 50 and higher. Quality windows are excellent barriers against outside noise. Glass siz e and glazing system will a˜ect STC rating. Oct 18, 2023 · How to Read an OITC Rating Chart. Open the link to view the worksheet. ** Series 6200 NRFC U-Factor of 0. STC ratings are also used for doors, walls and other building components. Anlin Sound Package with sound suppression technology greatly reduces the transmission of noise from the outside of your home to the inside, making your home even quieter. Over a single-paned window in a standard wall, the STC rating is 48. STC 30-40: Loud speech can be heard, but not entirely clear. Feb 20, 2022 · What Is the STC Rating for Windows? Again, STC stands for Sound Transmission Class rating. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. 22. 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. View and download the performance data and energy efficiency ratings for Anlin windows and doors (Thermal, Sound STC, Structural, Min/Max Sizes). Web learn how stc ratings measure how much sound is stopped by windows, and compare the noise reduction of single pane, dual. The test results are available upon request. 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 So far, no issues with the Hamilton series, but we just installed them this past September. STC 33-41 Singles Seal Set 41 - Pemko. OITC ratings are generally lower than STC ratings because the results are in decibels rather than the STC point system. Here’s a quick guide to understanding STC grading. A sound reduction of 35 decibels is very high. Typical dual glazed windows can achieve better ratings of 25-27. The OITC rating System is still in its infancy, and has yet to diffuse throughout the Soundproof Window industry. As an example, let’s take a typical single-pane window and a masonry wall. An STC 34 brings the windows up to the level of most of the outside envelope of the home. e. Learn more. Roughly speaking, the STC rating equals the reduction in decibel levels across the partition. 5 2 01 4 6 Double Vent 12060 48 S2009-553 HS-LC-25 0. Our expertly crafted solutions provide unbeatable protection against noise pollution, while preserving natural light and design flexibility. Glazing Option Air Infiltration. Depending on the tightness and acoustical performance of the window frame, the final STC rating of the window A typical dual-pane window has an STC rating of 25-30. [Click to enlarge any image] Definition of STC, Definition of SRI , Definition of OITC Pella 2024 Architectural Design Manual Division 08 Openings Windows and Doors www. E413-87 in an acoustical wall. If you’re looking for new windows that can reduce sound, Renewal by Feb 26, 2020 · I'm looking for windows with the highest STC rating available in Jacksonville, FL. With increases of air space, figures greater than 50 are easily achieved. Pim Foam or Dura**** OITC Test Date Test Number Intercept or Cardinal Jul 31, 2022 · So, prepare to delve into the realm of STC ratings and soundproof doors! Understanding STC Ratings. Understanding STC Ratings for Drywall. For a more scientific explanation of STC please see STC Ratings. _____ 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. Actual results may vary. * * [The data and information set forth are based on samples tested and are not guaranteed for all samples or applications. STC Rating Chart Determining STC Rating of Wall, Drywall, and Windows STC Rating of Drywall. ) versus the other side of a building’s surface. . *OITC is estimate d base d on this test. Class (STC) rating. Use this STC rating chart as a rough guide to the different STC ratings for soundproofing materials: Sound Transmission Class (STC ) is an integer rating of how well a building partition attenuates airborne sound. Performance based on dual glazed casement window test results. Understanding STC ratings for drywall can be complex. 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. However, soundproof windows can have an STC rating of 48-54 or higher , providing significantly better sound isolation. Most of the time, an assembly’s OITC rating is lower than an STC rating. When shopping, make sure to compare structural and thermal performance ratings to ensure that you are purchasing […] 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. 9375mm 32: 26 Hurricane Shield Series Jul 11, 2022 · The Basics of STC Ratings. When it comes to windows, STC ratings ranging from 18 to 38 are considered as good ratings. We also have shutters and they work great with the new windows! Edit: single-hung! 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. STC Rating Chart. gov to view specific US climate zone requirements. Jan 11, 2025 · Windows with a higher glass-to-frame/sash ratio are likely to perform better, especially if the glass in the window is designed to achieve a higher STC rating. Browse Windows 101 Videos STC sound rating was introduced in 1961 as the method of comparing various wall, ceiling, floor, door and window assemblies. STC provides noise ratings from mid-frequency to high-frequency sources, such as speech, radio, or television. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. However, builders can install double-pane windows and add more insulation around the windows to mitigate sound overall. com. Old aluminum and wood windows are rated even lower. 24 for triple glazed casement window. 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. A high STC rating is better than a low one. It means they can reduce excess sound in a significant manner. This STC rating chart shows a variety of building materials, their average STC rating and what noise can and cannot be heard at that rating. 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. STC 40-50: You can hear some muffled sounds, but not specific words. When you close the window, you hear the sound through a barrier (glass), and the glass has an STC rating, indicating how much sound has been reduced. STC ratings for sound control windows largely depend on the glass type. Web for more information on the stc and oitc rating of andersen® products, please view the performance grade and. Take caution, however, as too much noise reduction can make your ears more sensitive to sound. cycles. A four-point STC improvement can cause a clearly perceptible change in your The U. See the typical STC values and the factors that affect them. STC 50-60: Sound is barely heard, providing solid privacy. (see Table 5-15). S = Standard; O = Optional, (—) = Not available STC Ratings. 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. How Is the STC Rating Determined? STC ratings represent the average amount of The STC rating of a window soundproofing film is a key indicator of its ability to reduce sound transmission. 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. An STC rating is a quick reference number for the entire frequency band, and primarily measures interior noises at levels most common to human Ratings achieved at that size are representative of all sizes of the same configuration. 75 5 0 1 4 12 12 0 6 0 48 Apr 16, 2019 · Noise reducing features are measured with something called the STC rating. May 13, 2022 · The higher the STC rating, the less noise is transmitted from the assembly. You may choose to add the Anlin Sound Package to windows throughout your home, or to windows facing a street or other sources of noise. 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. These 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 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. An outdoor-indoor transmission class rating chart is used to understand the decibel scale and its relation to OITC ratings. The unique design of the Cam Lift Hinge offers enhanced radial strength, longer lasting performance, and easy maintenance. Please visit www. Apr 4, 2019 · STC ratings are one of the things you should look at when you’re going to replace your windows. The cost, however, may be prohibitive. 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. STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Trinsic I V300 updated 04. There are different ways to improve the STC rating of windows. 24 Page 2 of 7 Due to continual product research and development, details listed are subject to change at any time Standard windows offer sound control up to an STC rating of 30. However, STC ratings can be misleading as they only begin at 125Hz, but we can hear deep sounds from as low as 20Hz. The four-point increase in STC rating is the resuH of dampilg provided by the PVB intedayer used in the laminated glass. erk asstz fonjy zqgs hwkeb qaydl kpizjt nmymny yfblz whbx txvg pjq sydzr pzixaco nuzonap