Usg stc ratings. All Roofing & Building Envelope.

Usg stc ratings 06 m W* n 0 792 612 USG Structural Panel Concrete Subfloor steel joist steel beam furring channel USG Sheetrock®Brand EcoSmart Firecode®X clip angle wire-netting USG Structural Solutions USG STRUCTURAL PANEL CONCRETE SUBFLOOR ATTAINABLE SOUND RATINGS UL® H501® – 2-HOUR FIRE RATED DESIGN FLOOR FINISH SAMPLE LAYOUTS 2-Hour Rated System STC IIC Carpet & Pad 56 75 – 1-hour and 2-hour fire resistance ratings, depending on components used – Sound control up to 52 STC with the use of resilient channels and sound insulation – Easy application and fast drying for surfaces that are ready for next-day decorating or painting Steel Framed For steel-framed construction, a veneer plaster system provides: USG Levelrock SAM-N12 Ultra Sound Attenuation Mat requires a minimum 3/4 in. The higher the STC value, the greater the attenuation of airborne sound provided by the partition. Whether you need exterior design detail drawings or interior design detail drawings, make the most informed decisions with our comprehensive UL assemblies directory and UL assembly details. What is a Good STC Rating? Looking at the chart above, once a wall gets to an STC of 45, loud speech is audible but not understandable. USG P−1 Vinyl Trim (Figure 81), used to seal the perimeters, can be expected to perform within one or two STC points of beads of USG Acoustical Sealant. Tohelp maximize sound isolation between floors, they may be used with Levelrock Sound Mats or Sound Board to improve STC and IIC ratings. (15. There are designs that require Thermafiber insulation to achieve the fire rating. In addition, USG Cavity Shaft Wall can be used to provide horizontal protection for corridor ceilings, underside of stairwells, and other applications. CAD/Revit USG STRUCTO-CRETE® Brand Structural Panels. These graphs plot composite STC ratings for the entire office based on three different floor thicknesses compared to the STC ratings of the composite partition and ceiling system. But what exactly is an STC rating, and how does it […] Sheetrock® Brand EcoSmart Panels Firecode® X (UL Type ULIX™) are lightweight 5/8 in. However, when building hotels, the STC of 55 for demising walls and STC 50 for corridor walls isn’t a building code requirement – this is what we call a “brand As UL Classified products, they are approved for use in over 100 UL fire-rated assemblies. USG makes no warranty Apr 6, 2023 · When looking out for the materials that can block sound, one must consider two major rating systems. The USG STRUCTO-CRETE® Brand Structural Panels Fire & Acoustic Manual (SCP100) is the single source for acoustic ratings for UL-certified floor/ceiling assemblies using USG STRUCTO-CRETE® Brand Structural Panels, including side-by-side acoustic values (STC & IIC) for many common floor coverings. 1. This innovative gypsum board allows for construction of high STC wall assemblies that are thinner, cost effective and more Phone: 888-815-9691. STC 35-45: Loud speech is audible but less intelligible. PDF. the composite partition rating (based on the area occupied by the door and/or glazing) using Table 2 or 3. STC is highly dependant on the construction of the partition. Of course, the rating is determined as an average based on the different frequencies between 125 Hz to 4000 Hz. TY-1826 Test By: C. The brochure provides technical information, test data, design guidelines and performance selector for acoustical assemblies. Fire Rating: 1 hours: System STC: 49 System Thickness: 4. This rating is common in residential buildings with minimal soundproofing. In a similar test but with caulking all the way around the partition with aluminum base trim, the performance was STC 45. c When discrepancies appear among laboratory plenums and suspended ceilings STC ratings for essentially similar assemblies, and unbaffled ducts when the discrepancies are above and below window to window (outdoors) STC 50, field testing may be required to common heating units assure that the building complies with the transoms and air grilles Resilient channel can improve the STC rating of an assembly. 7 1 hr. This range is suitable for offices or moderately noisy environments. 5. CAD/Revit & Acoustics The world's most comprehensive collection of sound-tested, fire-rated assemblies. OC 3. Here’s a quick guide to interpreting STC ratings: STC 25-30: Speech can be easily understood through the partition. In fact, USG Drywall Suspension Systems with Securock® Glass-Mat Sheathing has been accepted by Miami-Dade County for use on exterior soffits in high wind velocity hurricane zones. (Fire Rating) UL Number USG Levelrock® Sound Mat USG Levelrock® USG Durock™ Underlayment (a) Insulation Framing Member Depth RC Deluxe® USG Sheetrock® Brand Firecode® C or X Gypsum Panels Floor Covering Sound Rating Test Number STC IIC Open Web Wood Truss (1 Hour) L521 L528 L529 L534 L542 L546 L550 L558 L562 L563 L574 L576 L585 L592 M503 SOUND TRANSMISSION CLASS (STC) – A single-number rating for comparing sound attenuation of partitions, such as walls or floor-ceiling assemblies, tested per ASTM E90. 9 mm) Sheetrock® Brand Firecode® X Panels at a lower environmental impact and reduced weight. The intent is to categorize the relative performance of an assembly in impeding or attenuating sound energy as it passes through the […] These data have been retained in this Selector to serve as a guide to the designer. 1/2" Gold Bond® SoundBreak® XP® Gypsum Board consists of two pieces of high-density, mold-, mildew- and moisture-resistant gypsum board, with a specially designed PURPLE® paper, laminated together with a Jun 15, 2024 · The STC ratings for windows and glass can range from 18 to 65, depending on the type and thickness of the glass. Sheetrock® Brand EcoSmart Panels Firecode® X (UL Type ULIX™) are lightweight 5/8 in. Find all the information you need on USG products for LEED, LBC and WELL certifications, including Environmental and Health Product Declarations, percent recycled content, and more. 6 USG Area Separation Wall Systems Components USG area separation wall systems have been comprehensively tested for fire resistance ratings only when all of the system components are used together. Figure 81 Architects and contractors design and build assemblies that reduce sound transmission between spaces in commercial and multifamily buildings. — o. 4 %âãÏÓ 9 0 obj > endobj 11 0 obj > endobj 23 0 obj > endobj 29 0 obj >stream /Figure >BDC q 1 i . The performance level being sought will usually fall in the STC range of 45 to 60. 7 mm) gypsum panels that feature proprietary core and paper technologies, resulting in a high strength-to-weight ratio composite design. —panels att only—USG-860802 with 1 Type S screws—joints fin—perimeter caulked— T-1396-OSU wt. USG’s abuse-resistant drywall portfolio includes enhanced panels with up to five times the impact resistance of regular wallboard. 5 mm (25 gauge) steel studs Mar 30, 2023 · Also, an acceptable STC rating for walls may be different from the acceptable STC rating for floors, depending on whether the walls are shared by a neighbor, or a room is directly beneath a kitchen with heavy traffic. Substitutions of any of the components are not recommended and are not supported by USG. (5 mm) profile; STC and IIC values exceed code requirements for sound attenuation USG STRUCTO-CRETE® Brand Structural Panels. c. 9 mm] Sheetrock® Ecosmart Firecode 30® Gypsum Panel (UL Type FC30) Wood Studs: 1 layer 2" x 4" [38 x 89 mm] Wood Studs, 16" [406 mm] O. The sound mats can be used over a variety of subfloors including plywood, OSB, pre-cast concrete, concrete and corrugated steel decking. , unless otherwise noted. 9 USG Acoustical Assemblies Plaster Systems –Veneer plaster partitions achieve up to 63 STC in steel-framed resilient systems and up to 52 STC in wood-framed resilient systems –Have achieved 1- to 4-hr. This is probably what the field STC rating is of that walls in your house or apartment, even it it may have been designed at an STC 50+. All Roofing & Building Envelope. STC 54 with G556 or H505 on 10" o. STC 40-50: You can hear some muffled sounds, but not specific words. C. Its 0. On the other end of the scale, STC−60 partitions are found increasingly in luxury USG provides resources here for our UL wall assemblies for seamless integration into any construction project. (3 mm) thick mat deflects or compresses less than a 1/4 in . All SoundBreak products are part of National Gypsum’s PURPLE® family of high-performance drywall products that also provide superior moisture, mold and mildew resistance as Dec 18, 2023 · Above is another example of a factory wall. Acoustics are further improved with partitions having high STC values to help block sound and prevent transmission across large spaces. (3. Department of Housing and Urban Development (HUD) provides information on housing policies, programs, and resources. 5 in. Revit, CAD, and construction details for fire rated wall assemblies can be downloaded for planning and material estimation. Assemblies will be organized by STC value ranging from an STC of 40 to an STC of 57. –Veneer plaster partitions achieve up to 63 STC in steel-framed resilient systems and up to 52 STC in wood-framed resilient systems –Have achieved 1- to 4-hr. The partitions used in most single−family dwellings today would test about STC 35 (although the actual performance is often even less due to leaks and flanking paths). Products Applications Design & Resource Center Who We Are Careers Compliance Contact Us Phone: 888-815-9691. Provides superior IIC ratings for demanding sound environments; Three layers for a higher Delta performance; 3/16 in. Levelrock® & Durock™ Brand Fire & Sound Rating Guide; Surprisingly Strong Underlayments. Drywall between double studs can dramatically reduce the STC rating of an assembly. USG SHAFT WALL SYSTEM USG Shaft Walls provide up to 4-hour fire resistance and sound ratings to 51 STC. Explore the USG Ceilings® Portfolio. That being said, anything below an STC rating of 40 might garner comments about paper thin walls. Refer to the appropriate product Safety Data Sheet for complete health and safety information. Perforated USG Sheetrock® Brand Panels to optimize performance; Acoustically transparent USG Ensemble®Spray-Applied Finish; Clean, Elegant Aesthetics. Substitutions of any of the components are not recommended and are not supported by CGC. STC Wall Assemblies Mold/Mildew/Moisture Resistant Approved For Use on Walls and Ceilings Soundbreak XP Gypsum Board is an acoustically enhanced gypsum board used in the construction of high STC wall assemblies. The average STC rating for a regular single-pane window is 27, while double-glazed windows have an average rating of 29. thick, 4 ft. Dec 31, 2024 · When it comes to managing unwanted noise, soundproofing is an essential consideration for both residential and commercial spaces. Find Sustainability Documents Assemblies Directory & Design Details. fire-resistance ratings for veneer and conventional systems –Can minimize or eliminate irregularities such as ridging, boarding and nail pops associated with standard drywall Learn how to select USG products and systems for sound control in various applications and environments. fire-resistance ratings for veneer and conventional systems The world's most comprehensive collection of sound-tested, fire-rated assemblies. Insulation will noticeably improve the STC rating of an assembly. Based on experience, the STC values are very close to those obtained for the assembly under current methods at 16 frequencies. Sheetrock® Brand Acoustical Sealant is water-based, highly elastic and easy to apply with hand-gun equipment to vertical and horizontal surfaces (even overhead) without sagging. Fire Rating: 1 hours: System STC: 53 System Thickness: 7. For more information, refer to USG literature Finishing & Decorating Gypsum Panels White Paper (J2010). G512. wide, Gypsum Board UL Classified for Fire Resistance (CKNX) eligible for use in Design No. Surface-Burning Characteristics: Classified by UL with flame spread of 0 and smoke developed of 0. Email: info@commercial-acoustics. Fire Rating: 1 hours: System STC: 53 System Thickness: 6 in. As discussed above, building code requires STC 50 for corridor and demising walls when building apartments and condos. 2 mm) thickness can help address The minimum Sound Transmission Class (STC) and Impact Insulation Class (IIC) ratings of 45/50 established by most codes for partition and floor assemblies often prove insufficient for many occupants. S. CAD/Revit 8-5/8 in. All Ceilings. Walls. Lab tests are performed at NVLAP-certified laboratories in accordance with ASTM E90 and ASTM E492. CAD/Revit Sound Tested: As an integral component to maintain high STC/MTC ratings in partitions. Mar 4, 2020 · The testing confirms STC ratings on wall and ceiling assemblies incorporating National Gypsum’s acoustical gypsum products and a range of other gypsum board products. Fire Rating: 2 hours: System STC: 41 System Thickness: 4. Because a 1/8 in . CONSTRUCTION SYSTEMS LABORATORY - ACOUSTICAL TEST FACILITY -- STC TEST REPORT SOUND TRANSMISSION LOSS (STC) TESTS BETWEEN ADJACENT TEST ROOMS TEST No: USG-040911 DATE: 9/10/2004 Project No. Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. (12. In general, a higher STC rating blocks more noise from transmitting through a partition. STC 43 Assembly Components Finish material 5/8” Gypsum Size 3 5/8” Steel Stud Spacing 16” oc Product AFB Thickness 3. 751 614 -426. Heavier gauge studs are more rigid and may not provide the same sound ratings. CGC Shaft Wall Systems have been comprehensively tested for fire resistance ratings only when all of the system components are used together. Monolithic appearance with fine finish in standard white and custom colors; High light reflective finish (LR-85) looks elegant and reduces fixture and energy use; Easier Installation The Sound Transmission Class (STC) is a single-number rating of a material's or an assembly's ability to resist airborne sound transfer at the frequencies 125-4000 Hz. 25 ga. Find and download resources for STC rated wall assemblies for your construction project. Chatman Approved: S. When using this rating, the number is considered. Sound ratings shown for steel-framed partitions apply to systems constructed with 25 gauge steel studs 249 o. If you don’t see the STC Rated Wall Assembly you need below, contact one of our acoustical engineers with the desired Assembly and Target STC Rating Sound Transmission Class (STC ) is an integer rating of how well a building partition attenuates airborne sound. All Floors & Tile. CAD/Revit painting. • ASTM E90: Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements Below please find STC rated wall assemblies based on our acoustic lab tests and INSUL models. 62 USG-160905 ULX 64 USG-160915 SCX 5/8 in. Fire Rating: 3 hours: System STC: 48 System Thickness: 4. Fire Rating: 1 hours: System STC: 61 System Thickness: 9. Address: 6301 N Florida Ave Tampa, FL 33604 Sheetrock® Brand UltraLight Panels are 1/2 in. However, STC ratings can be misleading as they only begin at 125Hz, but we can hear deep sounds from as low as 20Hz. (3 mm) thick mat that requires just 3/4 in . 9 mm) enhanced proprietary Type X gypsum panels that have been formulated to achieve all of the same strength and performance characteristics as standard 5/8 in. Refer to the appropriate product material Design Number label starting with "ALA" is an estimate generated by USG's proprietary Acoustic Learning Algorithm. The U. steel studs Sep 23, 2020 · USG BORAL DRYWALL SFZ LLC — Type C USG MEXICO S A DE C V — Types C, IP-X2, IPC-AR 3A. USG Sheetrock® Brand Type X Gypsum Panels 3-5/8 in. This is a UL U419 wall, so its STC rating is 50. Repair Details. of USG Levelrock® 2500 Floor Underlayment resulting in a total profile of 7/8 in . Nov 7, 2016 · STC Wall Rating Chart. The SoundBook® is the industry’s leading resource for technical details and sound-rated assembly drawings – all in one place. fiberglass insulation both cavities Single layer, double layer 10-1/8 in. Have a Question About Assemblies? Interior Partition - Wood Stud (Load-Bearing) Gypsum Panel: 1 layer 5/8" [15. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. Address: 6301 N Florida Ave Tampa, FL 33604 Feb 19, 2024 · How is the STC Rating Determined? The STC rating is based on how many decibels can be reduced through a material. If the STC rating is 35, that means the material in question can reduce sound transfer by 35 decibels. However, this insufficiency cannot be addressed simply by requiring higher STC or IIC ratings. –Veneer plaster partitions achieve up to 63 STC in steel-framed resilient systems and up to 52 STC in wood-framed resilient systems –Have achieved 1- to 4-hr. NWTL140828-03 STC 40 Assembly Components Finish material 1/ USG Cavity Shaft Wall can be used in elevator and mechanical shafts, air ducts, stairwells, and areas where wall construction is only available from one side. In other assemblies, the Thermafiber insulation is used to increase the STC. Fire Rating: 1 hours: System STC: 39 System Thickness: 4. • Installed by USG Levelrock authorized applicators USG Levelrock® Brand SAM-N12™ Sound Attenuation Mat provides an economical method of improving the IIC and STC ratings of a variety of subfloors such as plywood, OSB, pre-cast concrete, concrete and corrugated steel deck. 50003 659. 501 re 306 396. These wall assembly files are used for planning and estimation purposes for many UL wall types, such as fire-rated wall assemblies. Laboratory tests are conducted per ASTM E90 and classified per ASTM E413. 875 in. CAD/Revit USG Sheetrock® Sealant USG Sheetrock® Brand Gypsum Panels USG Sheetrock® Brand Gypsum Panels Stud Floor J-runner USG Sheetrock® Brand Acoustical Sealant USG Sheetrock® Brand Gypsum Panels USG Sheetrock® Brand Gypsum Liner Panel Conventional Wall: BW-S-0013, BW-S-0016, BW-S-0022, BW-S-0026, HW-D-0001, HW-D-0002, HW-D-0262, HW-D-0372, HW-D Construction Detail Description Test Number STC Test Number • 5/8" USG Sheetrock® Brand Firecode® gypsum panels – RC-1 channels or equivalent – Joints finished – Steel roof deck – Steel truss 48" o. See USG Sheetrock® Brand Tuff-Hide™ Primer-Surfacer Submittal Sheet (J1613) for limitations and application instructions. STC 30-40: Loud speech can be heard, but not entirely clear. USG Levelrock® Brand SAM-N12™ Sound Attenuation Mat is a 1/8 in . Their noise reduction qualities, aesthetics and high light reflectance make them an excellent choice for a variety of ceiling projects in conference rooms, privacy rooms and open office plans. Radar™ High-NRC/High-CAC Acoustical Ceiling Panels are great looking, clean panels at an economical price. Oct 11, 2023 · This product will meet and exceed building code requirements for sound attenuation in mass timber, with independent, third-party testing showing STC and IIC ratings as high as 56/53 with a single, low-profile sound mat. CEMCO’s HOTROD and HOTROD XL have been tested for STC in several wall assemblies. CAD/Revit & Acoustics found to be STC 35. Higher numbers indicate the assembly is more effective at reducing sound transmission. View Resources Sound Test Reports for Fire Bead, Fire Gasket, Sound Gasket, FAS J-Track, RBR Strap, 093X Jul 28, 2018 · STC Ratings for Walls. 625 in. steel studs staggered 16 in. 6. It’s a relatively straight-forward proposition to achieve an STC 50 on a 25-gauge stud wall, but if the wall requires shear strength or structural load capacity, then the gauge size and spacing become a major hindrance. • Roof covering and roof insulation over 1/2" USG Durock® Brand cement board or 1/2" USG Sheetrock® Brand gypsum panels USG STRUCTO-CRETE® Brand Structural Panels. When a Level 5 finish is required, use USG Sheetrock® Brand Tuff-Hide™ Primer-Surfacer. Fire Rating: 2 hours: System STC: 66 System Thickness: 11. This rating system is called STC, sound transmission classification. 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). Technical Support 1-800-USG-4YOU Product Safety Hotline 1-800-507-8899 Product Categories Provides high-rated Sound Transmission Class (STC) values. Choose high-CAC ceiling panels for private offices, meeting rooms and other enclosed areas to block sound from traveling up into the plenum and out to adjacent spaces. However, soundproof windows can have an STC rating of 48-54 or higher, providing significantly better sound rating Test Number STc IIc STc IIc open Web Wood Joist L521 L546 L550 L558 L562 L563 L574 L576 L585 USG Levelrock® Sound and Fire Rating Brochure (English USG STRUCTO-CRETE® Brand Structural Panels. Sound Transmission Class (STC) is a widely used rating of sound attenuation performance of wall and floor systems. They resist intermittent lateral loads up to 15 psf; also resist fatigue failure under cyclic lateral loading. (22 mm) . For Use in Fire-Resistant, Sound and Smoke Partitions: Acceptable for use at the perimeter of most Recommended STC Ratings on Corridor & Demising Walls. STC 55 STC 50 Lounge Office Office Office Conference Room STC 42 15/ 8" (41 mm) steel studs: single layer 1/ 2" (13 mm) Type X gypsum board each side; one thickness 23/ 4" (70 mm) JM Formaldehyde-free thermal/acoustical fiber glass batts. CAD/Revit Levelrock® SAM-N™ Series Sound Attenuation Mats provide an economical solution to improving the IIC and STC values in floor-ceiling assemblies. Adding additional layers of drywall can improve the STC rating of an assembly. It has a 5/8″ type-x gypsum board on both sides, sound batt insulation and is made using 6″ metal studs. Understanding STC ratings for drywall can be complex. CGC provides resources for our UL wall assemblies for seamless integration into any construction project. 4. Check the UL Fire Resistance Directory for the specific design requirements. USG Performance Flooring. These ratings, however chan one side spaced horiz 24 o. Refer to the appropriate product material The acoustical performance of a wall assembly is measured using a single number rating system, where the higher the number the better the performance. Sound Transmission Class (STC) of Rated Partitions. Next, refer to the three graphs in Fig. USG has a selection of designs that have been third-party verified for wind resistance. At the heart of evaluating soundproofing effectiveness lies the Sound Transmission Class (STC) rating, a standard used to measure how well a barrier reduces sound transmission. Wd Stud—5/8 SHEETROCK Brand gypsum panels, 34 Based on 16 stud D FIRECODE core or SHEETROCK Brand gypsum panels, spacing and screws 6 water-resistant, FIRECODE core—2 x 4 164 or 24 o. STC 50-60: Sound is barely heard, providing solid privacy. Two layers, applied vertically, and attached to furring channels (Item 2Fa). This is achieved through higher wallboard density and the presence of fiber mesh embedded in the backside of the wallboard. Engineered and manufactured by USG, these underlayments can be: Main Features. 58 USG-160904 ULX 61 USG-160912 SCX 5/8 in. Sound Transmission Class (STC) Sound transmission class (STC) is the standard rating in the United States. Understanding STC Ratings for Drywall. One of the ultimate trade-offs in wall design is structural load versus STC ratings. STC 43* 15/ 8" (41 mm) steel studs: single layer 5/ 8" (16 mm) Type X gypsum board each side; one thickness Yes, this is an excellent application for Drywall Suspension Systems. This sealant achieves all test-verified STC/MTC by sealing gaps in partitions with a long-lasting, resilient, acoustical seal. Fiberglass insulation cannot be substituted for Thermafiber insulation. USG STRUCTO-CRETE® Brand Structural Panels. 125 in. Fire Rating: 1 hours: System STC: 59 System IIC: 48: System Thickness: 20 3/4 in. fire-resistance ratings for veneer and conventional systems. What is an STC rating? Sound Transmission Class (STC) ratings show how well a wall assembly diminishes airborne sound traveling from one room to another. CAD/Revit & Acoustics 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. Payne Tested in conformance with the requirements of ASTM E90-02 "Standard Test Method for the Laboratory Measurement of USG STRUCTO-CRETE® Brand Structural Panels. Sound-blocking acoustical sealant (supports high STC ratings) Rust red color easy to identify for inspectors; Grade -18°C (O°F) low temperature flexibility, strong bond; Low-emitting product meets CA Specification 01350, California Department of Health Services Standard Practice for the testing of VOC emissions A: Bare floor = min. Wall Assemblies. Gypsum Board* — (For use with Item 2F) - Any 5/8 in. Drywall Drywall. 5” Acoustics Assembly Number: ISS-02 STC: 43 OITC: 28 Report No. Code minimum STC 50 / IIC 50 and higher; Premium STC 55 / IIC 55 and higher; Deluxe STC60 / IIC 60 and higher USG STRUCTO-CRETE® Brand Structural Panels. USG Cavity Shaft Walls are non-load bearing gypsum board partition assemblies designed for erection from outside the shaft at each IG1685 USG Levelrock® Brand Fire & Sound Rating Guide. USG Panels USG Panels USG Panels UL Design Number UL Design Number UL Design Number G503, G531, L501, L508, N501, N502, N505, P515, P516, May 19, 2023 · This article will explore the six variables that affect STC ratings in walls. USG offers professionals a complete set of architectural drawings for planning and estimation. components. Fire Rating: 2 hours: System STC: 56 System Thickness: 8. Mold and moisture resistant, provides extra protection against mold and mildew. 375 in. Fire Rating: 1 hours: System STC: 59 System IIC: 78: System Thickness: 16 3/32 in. Download the Acoustics Overview and sound assemblies to learn more. FIRE RATING (HOUR) The UL®-certified hourly floor/ceiling rating SOUND RATING LEVEL – Three rating groups: B – Basic sound performance STC: 51 to 55 and IIC: 51 to 55 P – Premium sound performance STC: 56 to 60 and IIC: 56 7 USG Fire-Resistant Assemblies Cross Reference of USG Panels and UL Fire Ratings The following table lists the USG panels that are appropriate to use for different UL fire-resistive Designs. C-Joist; attainable value over a range of floor covering: The following acoustic ranges of STC/IIC values are available. (6 mm) thick mat, less gypsum is required to create USG STRUCTO-CRETE® Brand Structural Panels. (19 mm) topping of USG Levelrock® engineered cementitious underlayment. USG Radar™ Acoustical Panels with ClimaPlus™ Performance, and USG Donn® Brand DX® Acoustical Suspension System Item: 2215 Radar™ Firecode® Acoustical Panels 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. com. Sound ratings shown for steel-framed partitions apply to systems constructed with 0. STC and IIC values for floor-ceiling assemblies constructed with USG Levelrock® Brand Poured Gypsum Underlayment and Sound Attenuation Mats PDF-1. kciz qmfqovske agsf evva rbhufuu jqabn qramm yuc ysbndn gmvn godcgw uqxvx rxc necqsp opn