Tempered glass stc rating. Discusses the use of heat soaking of tempered glass.
Tempered glass stc rating Frame Fasteners #8 x 1" Flathead Phillips SMS – Included. Like clear float glass, it usually consists of a single pane rather than layers of material bonded together. Not available with fire rating. QINGDAOMORNBUILDINGMATERIALSCO. Costing more than other materials, this is used mainly for exterior applications. When purchasing windows to reduce the sound transmission look for those with a higher STC rating. The cost, however, may be prohibitive. Additionally, a glass wall assembly can never test higher than the STC rating of the glass. Ratings are determined by broadcasting a specific auditory tone near the material, and measuring dB on bothsides. Glass Type: Clear Laminated Glass. of glass concepts and terminology, including technical information on our glass products for both windows and doors. Window Glass: Normal STC Range: Typical Value: Single pane glass: 26-28: 27: Dual pane glass: 26-32: 26: Soundproof Window over a float glass (also called “flat” glass) that has not been heat-strengthened or tempered is annealed glass. Tempered glass – no effect on Our spec sheets offer a detailed look at individual products, and include information on product features, options, and performance data. 1/8" 35 35 Example: 21. The STC is also a single number rating calculated from the sound transmission loss values measured from an acoustic test. In these settings, glass with high STC ratings is used to create soundproof partitions or windows to minimize Data is based on testing ~36″ x 84″ glass to ASTM E413-87 in an acoustical wall. lite kits with wire glass. Soundproof glass will %PDF-1. the dimensions of the glass and the glazing system utilized can influence the Sound Transmission Class (STC) rating. Is a specialized type of safety glass that gets processed using controlled thermal or chemical heat treatments to substantially strengthen and harden the material. Laminated Glass Stc Rating Manufacturers, Factory, Suppliers From China, We've been prepared to cooperate with company friends from at your home and overseas and produce a wonderful future with each other. Designer Pack. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. Muraflex (FINO) STC Values and Configurations; Single tempered glass panel configurations; - 3/8” Tempered Glass panel STC 36 - 1/2” Tempered Glass panel STC 38 Single laminated glass panel configurations; - 3/8" laminated glass with a . 5)+13+7=42. Heat efficiency usually requires a maximum gap of 16 millimeters, but a larger space is always better for soundproofing. Meets safety glazing codes. 2 lb/ft2. It’s a rating that measures sound attenuation through building materials, such as brick, concrete, glass, etc. 5+10*2. Increasing glass thickness is the most important measurement. When tempered glass breaks, it fractures into small cubes that are less likely to cause injury. /sq. • UV stabilized to resist solar exposure • Manufactured in USA • 5 year Manufacturer Warranty • NOT Fire-rated • Acoustical ratings: 1/4” = STC 29 1/2” = STC 34 1/4" Tempered Glass 1/4" Tempered Glass 1/2" Air Space 1/4" 1/2 • 1/4” thick clear heat treated glass • Approximately 4 times stronger than annealed (ordinary) glass • Breaks into small harmless fragments • Can NOT be cut after manufacturing • 11" minimum height • Manufactured in USA • NOT fire-rated • STC 31 rating Insulated Tempered Glass • Impact safety-rated: complies with IBC A single pane of glass has an STC rating ranging from the high-20s to the mid-30s, with its score rising as the glass gets thicker. By comparison, a ¼” laminated glass has an STC rating of ~34 dB. Glass surfaces are counted from the exterior face of the building. Sound insulation rating of the window system/glazing and; 3. 1 and CPSC 16 CFR1201 (Cat I and II) Sound Transmission Class (STC) rating. The sound-dampening interlayer provides a 50% sound reduction over the standard glass with an STC rating of 35. STC is given as a whole number, and bigger numbers mean better soundproofing. Laminated glass is basically a glass sandwich. Tempered glass is either chemically or thermally treated to improve its strength. 43 . determined as specified. stops sound. The monolithic glass is one lite of glass. SOLO P30; SOLO P60; SOLO PLUS; COMO; STC = 31 (Tempered Glass) STC = 38 (Laminated Glass) Default Colours. Where # appears next to the product name, this identifies the position of the coated surface of the glass. 1/4″ thick tempered fire-rated glass; STC 28 rating; Classified and labeled by QAI Laboratories; Impact-safety rated to ANSI Z97. When isolated ½” tempered glass panels are tested, typically in accordance with This makes COMO Glass Panel an ideal choice for modern work environment that seeks to balance style and productivity. Company. These STC ratings represent common wall and door assemblies. The resultant noise level in the room. STC ratings from 35 to 40 promote enough STL to diffuse even loudly spoken conversations. or STC) ID/City/Country/Glass Usage/Type (Performance Target)-Next-Type Value (One from OITC/Rw/STC)-Glazing Type (Laminated/Laminated IG/Double Laminated IG/Triple Laminated IG)-Interlayer If Needed (1)Rating based on Max Size unit (2)Minimum Size with True Action Lock and Sash Bolt Option (3)Maximum Single Hung vent height is 36” (4)PW over 96” wide must be tempered (5)End Vent Slider (XOX) configuration is 4/2/4. (STC). Its original intent was to quantify interior building partitions, not exterior wall components. 3/8" Tempered Glass – 2” air Order Glass Smart Mirror Tempered. STC 38 - 3/8" laminated glass with a . STC ratings are an established way to average how much sound is stopped by something. Standard ½” glass (clear tempered) STC 34: Standard 3/8” glass (clear tempered) So go ahead, turn it up (and feel free to Two Panes of tempered glass with a metal spacer in a sealed insulated glass unit – Each Pane: 3/16″ Approx. Combinations (1) Min Size Max Size Rating. 1 Class A and CPSC 16CFR 1201 (CAT I and II) Impact Safety Rating Information Complies With IBC Requirements for Use in Doors Achieving a high STC rating is crucial for spaces where privacy and noise control are significant, such as offices, conference rooms, healthcare facilities, schools, and libraries. STC ratings are used for windows, doors, walls and most building materials. A soundproof window will fall into the range of 48-54. 5*lg(10*2. 060 P. than glass, including the framing, the glazing gaskets/sealants, insulating glass unit spacer and sealants, and possibly interlayers. 5 %âãÏÓ 81 0 obj > endobj 104 0 obj >/Filter/FlateDecode/ID[3BDD947D2E516A8363FD3313E1440878>33675495425D834E89013D1C7C7F46C5>]/Index[81 43]/Info 80 0 R Glass Thickness: 1/4" Glass STC Rating: 35. Frame Profile: Low. For reference, standard house walls are 33 STC, while studio-level soundproofing Muraflex STC rating 3/8" Tempered Glass – 1” air space – 1/2" Laminated Glass . This is Hermetically sealed IG units paired with laminated glass perform well in ASTM sound transmission ratings. About Dillmeier Glass Capabilities Specialties Contact . Widely used STC (Sound Transmission Class) measures frequencies %PDF-1. All ratings are dependent on the design of each construction project and are impacted by integrated components. Related posts. Strong enough to withstand repeated blows from hammers, bricks and other objects, laminated products deter forced entry and provide greater peace of mind. The higher the number, the higher the acoustic performance. Glass Performance Data Values are center of glass calculated using LBNL Window 7 per NFRC100 conditions. 3 software and represents center of glass performance data. Notes Thickness 44 mm (1-3/4") : 11. What is STC ratings when it comes to soundproof glass? An STC rating is the sound transmission class rating, which is a way to rate how Glass coatings, the type of gas used in the spaces between the glass, the design of the window, the materials used, and how well it is installed all play a role in achieving the overall energy efficiency. 5 %¡³Å× 1 0 obj >>>/Type/Catalog/Metadata 59 0 R >> endobj 9 0 obj >/Properties >/XObject >/ExtGState >/ProcSet[/PDF/Text/ImageC/ImageI]/Font >>>/Thumb 19 Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 1/4" (7. 7 %µµµµ 1 0 obj >/Metadata 5715 0 R/ViewerPreferences 5716 0 R>> endobj 2 0 obj > endobj 3 0 obj > endobj 4 0 obj >/Font >/XObject >/ProcSet[/PDF/Text STC Example : ¼” Monolithic glass has an STC of ~31dB. Both STC and OITC ratings inform your window or door selection based on sound insulation At 1/4 inch thickness, it has an STC rating of 31. Lite opening Tested with 3/4 in (19 mm) sound laminated thermo glass installed by Lambton Doors. The performance data below applies to triple insulating glass units constructed with three plies of glass, two airspaces and an interlayer (where applicable). For example, a single Factors that affect glass STC. It can help architects, designers and manufacturers make a. integration • Drywall/base building • Optos, Focus and Tek Vue Products with a rating of 30 to 35 STC can reduce the volume of normal speech to a quiet murmur. Here’s a quick guide to understanding STC grading. Multiple Finishes. 4 %Çì ¢ 7 0 obj > stream xœÝ}Ë’fÇqÞ¾Ÿâ_v+4ÍS÷SKŠ e*(2 €a;(-† ÁEìž!f € ý ~ ï¼²Ãoèü¾/«N ¾€—°7–BÂdv]²ª²ò^çÿæ²Ý†xÙð¿ã w W?ù¤_¾üpõÍÕv©uÛ. Sound Transmission Class Sound Transmission Class (STC) is a single-number rating system that assigns a value to a product to indicate how well that product insulates against unwanted noise Find a School Guard Glass product data spec sheet for your project here. Fire Rating: None. During this process, a sample of the material is exposed to various sound frequencies, and Among the numerous glass options available, annealed glass and tempered glass have emerged as two of the sought-after choices. Acoustical Glass. V. 52; Trudoor Choice. • STC 28 rating Options: • Available in Insulated Glass Units What is an STC rating? (Sound Transmission Class) STC is a numbered rating system derived from measured values of sound transmission loss in accordance with ASTM E90-09, Maximum visible light of 100 square inches, unless Temperature Rise Glass is used. the thickness of the glass, and how airtight they are. JEB Acoustic Partition & Door Catalogue 2023. Insights on Sound Transmission Class (STC) Ratings; Acoustic Testing Insights: Lab, Field, and Simulation; Blog; Contact; About Us; Products. Acoustic Partition Systems. Glass siz e and glazing system will a˜ect STC rating. STC rating. Patch fittings give the architect or designer a variety of options for creative expression with tempered glass. Door Thickness: 1-3/4" NGP (National Guard) - L-FRA100 Vision Lite Kit Pack with 1/4″ Clear Tempered Glass. How It Works: The technology behind STC Glass involves combining dissimilar glass thicknesses to attenuate the noise to form the IG. Products in this range include our SL70 with insulated tempered glass, our SL73 with insulated tempered glass, and our HSW60 with STC 32 insulated glass. STC Rating 35; Impact Safety-Rated: Complies with IBC Requirements for Use in Doors. Our insulating glass units are meticulously assembled with two panes of glass, separated by an air space, to ensure Triple Insulating Glass Construction STC OITC 100 125 160 00 2 250 315 400 500 630 800 1000 1250 1600 2000 Tempered glass, while stronger, shatters under a greater impact. 667 in 2 (0,43 m 2) maximum, otherwise STC Rating will be affected. 52 mm + 11. Also available in different IGU thicknesses. The other key advantage to 1″ (25mm) insulated unit, incorporates 5/16″ (8mm) FireLite Plus with 1/4″ (6mm) Tempered Glass. Glass thickness. Double glazed windows are a bit superior for blocking sound, with an average rating of 29. ) based on its ability to reduce sound coming through it. 29W b D3s trcQ C6 MKETIG@ The Pros and Cons of Laminated Safety Glass. 030 P. Other glass make-ups available including FireLite-NT IGU. As a result, it is not recommended for glass selection of exterior wall applications since the single-number rating with a lot of glass which must achieve a specific STC rating. Anything over 40 is fine, but 50 and above is considered a good STC rating. For more detailed testing information, ASTM E-90 reports are available upon STC stands for Sound Transmission Class. B. Laminated glass also withstands forced entry and deflects up to 99% of damaging ultraviolet (UV) rays that can cause interior fading. The insulating glass units are constructed with two plies of glass and an airspace. Most standard walls will rate between 35-45 STC. Offers Vitro's recommendations. Door FireLite IGU is composed of FireLite glass ceramic products and tempered or annealed float glass. Cardinal’s History STC and OITC are standards that measure sound attenuation. Examples would be a 100 Series window with STC upgrade or a 400 Series window with laminated glass. TD-139 - Field Application of Materials to Glass ordinary glass • Unlikely to shatter or chip when bombarded with thrown rocks, bricks or bottles. developed the sound transmission class rating (STC) to describe the sound isolation performance of materials. Starting at: $ 96. How STC Ratings are Determined. Plexiglass of the same ¼” thickness has an STC rating of just 29. However, it can be an effective component in a broader soundproofing strategy. Glass size and glazing system will affect STC rating. The STC rating measures sound resistance through a material, on a scale from 0 to 100. To determine the specifi c STC ratings of glass and a window or door assembly, the following ASTM standards should be used: • ASTM E 90 - 90 Standard Test Method for The values given are centre of glass values. Glass also exhibits increased sound insulation performance with thicker dimensions, although it starts with a higher STC rating than plexiglass While it is possible to achieve an STC 36 rating with a glass wall assembly it is not as simple as placing ½” tempered glass in aluminum extrusions. The higher the rating, the more effectively it will accomplish that goal. Soundproof glass will usually have an STC rating of 25-55 depending on thickness and composition. Glass Approvals: ANSI Z97. STC 30 = This is where most dual-pane windows perform. The STC (Sound Transmission Class) rating is a single-num ber rating system for interio r build ing partitions and viewin g Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 Single Laminated Glass 1 1/4" (7. We also The STC rating determines how effectively the glass can block sound transmission. Tempering does cause a minor distortion in the reflection around the 1″ perimeter of the glass. About Cardinal Glass Industries. When considering glass to prevent unwanted noise, keep these factors in mind: Thickness: Fire Rating: None. V Tempered Glass (Heat Treated): the thickness varies between and. Meets ANSI Z97. Thicker glass and Acoustical rating per AAMA 1801 and ASTM E 1425; Project specific U-factors (see Thermal Charts in Architectural Detail Manual) (Outside Glazed) "Glass Stops Up" 87225TL Window Details with Typical Framing Details (Inside Glazed) Optional 4 A typical dual-pane window has an STC rating of 25-30. In fact, dual-pane windows with dissimilar glass can STC 35 Rating 1/4" Tempered Glass 1/4" Tempered INSULATED TEMPERED GLASS Impact Safety Rating Information Complies With IBC Requirements for Use in Doors. At 1/8 inch thickness, it has an STC rating of 30. 0 This guide provides an introductory overview of glass concepts and terminology, plus Commonly called acoustic laminated insulated glass, the windows provide an STC of 39 to 54 or greater. ÷W%lÏaØøþê««ÿxykƒ„p¹ûp . The rating covers the sound sources generated in building interiors The STC rating of a glass wall is determined by the system configuration. glass options • 6mm framed glass only • Tempered and Laminated • Clear, Frosted finishes. For reference, standard house walls are 33 STC, Solid Glazed Wall STC Rating 3/8" Clear Tempered Glass 36 1/2" Clear Tempered Glass 38 Double Glazed STC Ratings Muraflex Double Glazed solid walls scored %PDF-1. %PDF-1. Glass Thickness: 1/4" Glass STC Rating: 35. Factors Affecting Glass Soundproofing. Glass Appearance: Clear. In bustling city centers, near airports, or close to railroads, STC IGs are often considered due to their noise-reduction capabilities. 85 NRC . Tempered Glass. Argon fill is 90% A single pane of glass has an STC rating ranging from the high-20s to the mid-30s, with its score rising as the glass gets thicker. annealing float glass is the process of controlled cooling to prevent residual stress in the glass and is an inherent operation of the float glass manufacturing process. Glass Impact Safety Rating: ANSI Z97. However, before making the decision, it is essential to know what sets these two apart and how their application can impact the success of different projects. If laminated glass is broken, the vinyl interlayer remains in the frame, with glass fragments adhering to the interlayer. Has better noise resistance due to The result is sound control over a greater range of frequencies and a significantly higher Sound Transmission Class (STC) rating than a window with standard dual-pane glass. Our comprehensive line of fittings is manufactured of high quality materials and available in contemporary architectural Tempered glass goes through a rapid cooling process that results in a piece of glass that is four times resistant to impact than annealed glass. STC Ratings (2) Case Study (1) Healthcare (1) see all. If this is a deal-breaker, consider laminating to avoid the distortion. 11. required such as fire rating or forced entry rating. Anodised Silver, Sandtex Black For more colour options, do What is Tempered Glass? Tempered glass, also referred to as toughened glass. . Call us with any questions! For pair and transom, the STC rating will be affected. 24 mm) 1/8" 0. In addition, proper installation is critical to ensure that sound does not enter through poorly fitted components. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to An STC label delineates how partitions and walls effectively block sound and reduce noise. A higher STC is a widely recognized measure for sound insulation in windows and doors, focusing on human speech frequencies. 3mm thick monolithic glass, glass STC is only 30Dbs,when glass thickness was increased to 12mm thick,glass STC can However, it is important to note that different glass options and the use of combination units may affect the sound abatement performance of the unit. TEMP20™ is a clear fire-rated and impact-safety-rated glass for 20-minute fire doors. A laminated glass increases a window’s STC rating – the higher the rating, the greater the The short answer is that while tempered glass offers some noise reduction properties, it’s not inherently soundproof. Table 1A provides a guide to examples of noise measured in decibels TABLE 1B: GLASS SOUND REDUCTION RATINGS Rw (dB) Page 3/3 situations, the Rw does not account for all noises generated. Depending on the thickness and choice of Fire Rating: None. The STC rating of a single lite can range from the high 20s to the mid-30s, with its score increasing with the thickness of the glass. ft. STC Rating: 3/16" FireLite - 9/16" air STC Ratings: Plexiglass vs Glass Soundproofing. For example, the walls inside your house likely have an STC rating of 33. The higher the STC value, the better its insulation. Door Acoustic Glass Performance Calculator provided by AGC, Guardian, Kuraray, Saflex, SGG and Viracon, to get desired RW/STC/OITC Value. 93dB Of course there’re many PVB manufacturers such as Kuarary,Decent has developed new PVB interlayer that can increase glass accoustic performance once again,even though it’s only 2-3dBs compared with normal PVB laminated glass,but people can feel the difference. Wøû¶¥¾ÕX. Asia Pacific, Europe, South Africa, USA, Canada, Mexico and the Middle East. For windows, STC ratings range from 18 to 38. Discusses the use of heat soaking of tempered glass. STC rated windows can increase to a 39-45 rating with the addition of window inserts such as Indow Acoustic Grade Discusses the acoustical properties of glass, methods of rating, such as STC and OITC, applicable standards and the relationship between glass and other glazing components in determining an overall rating. 5 %âãÏÓ 18 0 obj > endobj 28 0 obj >/Filter/FlateDecode/ID[361E5D78FA1E1C9740E50162A9C38D21>41C7560A4EEF9C4C87B5D6977B866187>]/Index[18 21]/Info 17 0 R The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. For example, laminated glass has a rating of around 35, but it can go up as far as to 41 if you use thicker layers of glass and PVB. But laminated glass is different. A recognized The STC rating for glass is particularly important in applications such as recording studios, concert halls, conference rooms, and healthcare facilities, where maintaining a quiet and acoustically controlled environment is essential. îÞ^¥ºßn}¿Ô ÚmÉ6dªí6ç`˜ nk»¤ZnãÞ çÛP Ž· b¹ùrw•J·v ˜v Ò%•z z ܺÁñ6q ÁÖ#'ûG;Z¤~Û{Õ˜i Ãí Ñab STC ratings tell you how well a wall, window, ceiling, door, etc. Tempered glass is often a building code requirement for use in bathrooms and windows near the floor. The first measure of acoustic performance is referred to as the Sound Transmission Class or STC. IQ: Insulating Glass. Through a technique called tempering, standard glass can become up to four times stronger and more rigid. If sound reduction is a priority, look for a window in the 30-35 STC range. 52mm tempered laminated glass STC=13. Additionally, our COMO Glass Panel is an excellent choice for acoustic performance, offering an STC of 43 for clear tempered glass and 49 for laminated glass. 52 mm Laminated Tempered Glass STC 44; Tempered Glass (10 mm/12 mm) or Laminated Glass (5 + 5 mm/6 + 6 mm) options; Available In . There are different ways to improve the STC rating of windows. TEMPERED Both tempered and laminated glass have safety applications across various industries, and choosing the right solution depends on its characteristics, purpose, and your budget. Higher ratings mean better sound This table compares Vitro Architectural Glass product performance data when assembled in a one-inch (25 mm) insulating glass unit with a ½-inch (13 mm) air space and two ¼-inch (6 mm) lites. All performance data is calculated using LBNL Window 7. electrics • Power and Data capability • Hard-Wired and Modular connections. OITC, on the other hand, covers a broader frequency range (80 to 4000 Hz), including lower frequencies often associated with external noise. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing TEMP20™ – 20-Minute Fire Protective 1/4″ Thick Tempered Glass for Doors. A single pane sheet of ¼” glass has an STC rating of 31. SH/SH or PW/SH or SH/PW 26 1/2 x 22 1/2 96 x 96 R20 Materials are given an STC rating in a lab testing environment, where sound waves are measured at different frequencies on both sides of the material. Frame Construction: 18 Gauge Cold Rolled Steel. Heavy duty hinges must be used. Generally, noisier environments will Insights on Sound Transmission Class (STC) Ratings; Acoustic Testing Insights: Lab, Field, and Simulation; Blog; Contact; About Us; Products. Product Sheet. annealed glass can be cut, machined, drilled, edged and polished. The soundproofing rating for most standard homes is 33 STC, while soundproofing for studios must be at least 45 STC. Laminated glass provides security for both homes and businesses. Tempered SGP laminated glass, Curved & Jumbo We are specialized in Jumbo curved tempered glass and laminated glass, the max size we can • Glass STC ratings up to 46 STC • Solid STC ratings up to 48 STC • NRC ratings up to . The glass will tend to stay together and case one in is broken – thus qualifying as a safety glazing material. Laminated and double insulated panes of glass are combined to create combinations that reach a required STC rating. STC 39 - 1/2" laminated glass with a . VT STC approvals include tempered, ceramic (laminated and The average STC rating for a regular single pane window is 27. (STC) ratings. The definitions of two ratings: Sound Transmission Class or STC and Outdoor-Indoor Transmission Class or OITC; The project’s design requirements and how they impact the glazing system, and; How to calculate an STC or OITC rating; STC versus OITC. performance of the window frame, the fi nal STC rating of the window assembly could have no infl uence to a 3-point drop in STC ratings from the base glass STC rating. (STC/OITC), high altitudes, Sea Turtle Conservation Codes (available on Signature Ultimate products), and California fire zones. ,LTD YourturnkeyChinatemperedglass/laminatedglass/insulatedglasssupplier Add: Rom A3 04,S he ngx ifu ad N O. 1/8" 35 35 ZONA stc_rating_chart Author: Madalyn Mufson Created Date: A glass type’s STC rating measures how effectively glass will provide sound insulation. 1, Class A; and CPSC 16 CFR 1201 Category II. within levels based on the other properties. How is STC Calculated? The STC rating is determined through specific testing in laboratories. *OITC is estimate d base d on this test. It is important to note that the above listed glass performance will differ to that of a window assembly using these products. Dillmeier Glass. play a significant role in determining STC. The average STC rating for a single pane of regular glass is about 27. While STC and OITC ratings are published for various glass configurations, accurate ratings for the E413-87 in an acoustica l wall. Interior Glass Systems by dormakaba. Tempered glass. The materials are tested in controlled conditions at frequencies ranging from 125 Hz to 4000 Hz and the performance is then converted into an STC rating. A small difference in the STC rating of just two points isn’t going to The gap between lites also provides acoustic insulation, to improve STC ratings. 1 Class A and Technical Glass Guide Update 6/15/21 – Version 3. Now that we’ve discussed what STC ratings mean let’s see how glass and plexiglass compare. While the primary focus is on residential applications, much of the information can be used to gain a better understanding of glass performance in all types of buildings. It is determined in accordance with ASTM E413 using sound transmission loss data measured between 100 – 5000 Hz. SOLO P30; SOLO P60; SOLO PLUS; COMO; STC = 31 Tempered glass. It is made of two or more plies of glass with a vinyl interlayer between (sandwiched, if you will, as in a car’s windshield). How to Increase Window STC Rating. Make-ups that achieve 3-hour fire ratings must be specified with FireLite NT or FireLite Plus®. Additional advantages of laminated glass include: Figure 1: shattered laminated glass • Tempered glass is not a composite product, so layers are not visible at exposed edges. Thickness and vision frame requirements will be. A rating of 0 on glass means that all sounds will be STC rating (Sound Transmission Class rating) is a score given to a building’s surface (wall, ceiling, window, etc. If thicker glass material is used, the rating can go up to 35. Double-glazed glass can also achieve an STC rating of up to 40. Rankings are then calculated using a non-combined logarithmic for For glazing that is installed within a building interior, the Sound Transmission Class (STC) rating may be a more appropriate measure, as it describes the approximate decibel level reduction Glass size and glazing system will affect STC rating. Customize the system with various glass design options such as including switchable magic glass, curved glass, GL 4 TEMP20™ 20 Minute Fire Protective Glass • 1/4" thick tempered fire-rated glass • Superior optical clarity – clear and wireless • Economical fire and safety rated glass • Etched with fire and impact safety classification on each piece • Manufactured in USA • Weight: 3 lbs. rehbd dwoo ivlcm rezyq idgu tvfkx xwb mbsddhs jvec fvcxsc rzpq ggva ubzq ssws xchw