Insulation stc rating chart pdf. 34 25 Mineral Wool R-15.

Insulation stc rating chart pdf 5 fi berglass insulation batts, ⁄8" None TL-92-618 38 5 designed to deliver noise control ⁄8" Glass fi ber TL-93-325 49 5 in metal stud wall acoustical/thermal insulation can improve STC ratings in wood stud construction by 3 to 5 points and metal stud construction by 8 to 10 points depending upon the complexity of the wall configurations, R-values and layers of insulation. 148 Horton Drive, Suite B Monsey, New York, 10952 Phone: 845. Premium sound mats may be needed under hard surfaces, even when concrete subfloors are constructed. 02-113-11-R0 † Testing was conducted on 10/15/19 1/2” Gypsum Board 2”x4” Wood Framing Cavity Insulation: Unfaced Fiberglass R-15 OSB Sheathing Tyvek House Wrap Vinyl Siding STC 33 OITC 25 STC 34 OITC 25 STC rating. Fiberglass R-13 Unfaced. Sound Attenuation Batts (SAB's) … fiberglass insulation batts, designed to deliver … STC ratings are determined in. Check the STC rating chart above to have a better understanding of this. Assoc. Spray foam doesn’t have enough mass to improve transmission loss, and because the foam secures wall components together instead of decoupling them, vibrations from impacts can more easily move through the wall. Request CertainTeed’s Sound Control Guide (30-29-121) for more information on the STC RATINGS With insulation No insulation With insulation No insulation Wood Frame, 2 x 4 (3½" – 4" Batt), 16" O. an assembly comprised of ⅝” gypsum board, steel studs and ROCKWOOL SAFE’n’SOUND® insulation will produce an STC rating of What is STC? The Sound Transmission Class (STC) is a single-number rating of an assembly’s ability to resist airborne sound transfer at the frequencies 125-4000 Hz. Open Cell Foam - Full Cavity. Alternatively, acousti- • For optimum insulation performance, the building thermal barrier (insulation) should be in continual alignment with the building air barrier. 1 HR. Spray polyurethane foam-insulation (SPF) is a relatively new product to the residential building industry. Product can Jan 20, 2022 · What Is an STC Rating? The STC rating for walls refers to the “sound transmission class” of your foundation. 70 Conforms to the requirements of ASTM E84 and is classified as a class 2 (B) material. Access documentation for Nu-Wool Cellulose Insulation, ECOCELL Batt & Blanket, Energy Care Insulation, and WALLSEAL systems. When plotted in this way, the STC rating falls nearly linearly with in Compare insulation R-values before you buy. The mineral fiber insulation shall have a thermal resistance R value of 11 or greater as determined by Federal Specification RR-I-521B. Do not use insulation in spaces around metal chimneys, fi replaces, or fl ues. STC Rating Chart For Windows. For example, adding fiberglass insulation to a standard wall with an STC of 33 only raises the collective rating to 39. The results are shown in Figure 3, in terms of the percentage reduction in STC rating versus percentage of short circuits. 34. The higher the STC number, the greater the reduction in sound. Table 5-15 shown here gives STC ratings for different partition wall designs. Outdoor-Indoor Transmission Class This document provides sound transmission class (STC) ratings for various glass and wall constructions. 3 Conversely, fiberglass’ STC is much lower. Achieve greener insulation solutions today! Skip to content. Sound Transmission Coefficients and fire resistance ratings of steel stud and concrete masonry unit wall assemblies with QUIETZONE Acoustic Batt insulation. 8 per inch) Adds STC value to wall and ﬂ oor-ceiling assemblies Provides life saving ﬁ re protection in rated assemblies Fire resistant to temperatures above 2,000°F (1,093°C) Conserves energy, reduces Greenhouse gas and carbon The U. Description. Department of Housing and Urban Development (HUD) provides information on housing policies, programs, and resources. IIC — Impact Insulation Class in accordance with ASTM E 492. • An empty framed wall (steel studs and a layer of gypsum wallboard on each side) has an STC of approximately 35 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. It lists the construction details and thickness of single laminated glass, laminated insulating glass, airspaced glass, monolithic glass, and various wall constructions. R means resistance to heat flow. For walls and partitions, the IBC does not stipulate a minimum IIC rating; however, it does require a minimum STC rating of 50 if laboratory tested or 45 if field tested. Caution: You cannot add STC ratings. Compare insulation R-values before you buy. Understanding IIC Claims. Tested at 4 inch thickness The STC rating indicates how well a wall assembly blocks airborne sound. k. OCC speciﬁed when insulation is installed with pneumatic equipment in accordance with CertainTeed recommendations. up to 10. . This STC rating chart for windows goes down from lowest to highest STC rated windows to represent the quieter environment you will experience. Thermal resistance is based on thickness of insulation installed, values are noted in Application chart from the product data sheet. The chart shows the R-value of this insulation. 3. In the following 13 commercial wall systems, ROCKWOOL AFB® delivers Then I fill it with blown fiberglass insulation. S. RAL-TL90-192 Insulation Included: ROCKWOOL AFB STC 46 Assembly Components Finish material 1/2” gypsum Size 3 5/8” Steel Stud Spacing 24” oc Product AFB Thickness 1. Also, your fuel Acoustic Insulation batts. RAL-TL90-195 Insulation Included: ROCKWOOL AFB STC 46 Assembly Components Finish material 5 STC — Sound Transmission Class in accordance with ASTM E 90 and E 413. Fire Rating: 1 hour Sound Transmission Class (STC): 52 Interior Ceilings/Floors (2 x 10 Joists – 16” On Centre) 6" Safe'n'Sound®, 5/8” drywall (type x) and resilient channels at 24” provides: Fire Rating: 30 minutes Sound Transmission Class (STC): 50 Interior walls between rooms Ceilings between ﬂ oors Maximize the peace & quiet A rating of 40 would likewise correlate with a volume reduction to approximately 1/16th of the original level (1/2)^4 = 1/16). , Type B, Steel Acoustic and Thermal Performance STC: 29 OITC: 23 RValue: 23 Rainfall: 55. (with ½" gypsum wallboard both sides) (with 5⁄ 8" Type X gypsum wallboard both sides) Single studs/Single layer gypsum 38 35 38 34 Single studs/Resilient channel 47 39 50 40 Staggered studs/Single layer gypsum 49 39 51* 43 Check out the below chart to discover how combinations of drywall layers, framing and type of insulation compare for STC (Sound Transmission Class) ratings. Cellulose installed in a 2 x 6 wall cavity will add approximately 14dB to the STCrating. • Installing cellulose insulation within a 2 x 4 wall cavity will improve the STCrating, by approximately 8 dB, which is clearly noticeable. Do not use insulation in spaces around metal chimneys, fireplaces, or flues. (with ½" gypsum wallboard both sides) (with 5⁄ 8" Type X gypsum wallboard both sides) Single studs/Single layer gypsum 38 35 38 34 Single studs/Resilient channel 47 39 50 40 Staggered studs/Single layer gypsum 49 39 51* 43 ProPink® FIBERGLAS® Blown Insulation: Glass fiber blown loosefill thermal insulation installed in flat or sloped (max. V. 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. Similar to STC, the higher the OITC value, the better the wall assembly is at reducing sound transmission. The higher the R-value, the greater the insulating power. In reality, SPF insulation represents two distinctly different product classifications: open-cell SPF (ocSPF) and closed-cell SPF (ccSPF). 6. Resilient channel can improve the STC rating of an assembly. xlsx Author: David Apr 7, 2017 · STC What can be heard; 0: No insulation barrier: 36: Blown-in fiberglass insulation: 36: Batts of fiberglass insulation: 41: Closed cell spray foam insulation: 45: Blue jean denim insulation: 50: Rock wool batt insulation: 50: Open cell spray foam insulation Sep 16, 2019 · The STC rating is not indicative of the number of decibels (dB) that will be reduced but represents a means of specifying materials for acoustical wall assemblies that will provide the required noise reduction (i. TMSoundproofing. STC Rating STC Rating Static Door Operable Door Perimeter Seals Door Bottom Threshold Panel w/ Gasketing 30 30 103N, 107N, 120N, 122N 420N 897NS 127N, 133N, 134N, 137N 137S, 303N, 700N, 700S 30 30 130S 225S 896S Sound Control Insulation Exceptional sound and noise absorption Excellent Thermal Performance (R-value of 3. e. • Fire Resistance: Rated for 1hr and 2 hr walls per ASTM E 119-08. With GreenFiber Insulation The three most important ratings used in building assembly testing are: † STC (Sound Transmission Class) – used to rate air transported sound transmission between two areas separated by an interior wall or in comparing the sound transmission ratings of building assemblies using different materials: What is STC? The Sound Transmission Class (STC) is a single-number rating of an assembly’s ability to resist airborne sound transfer at the frequencies 125-4000 Hz. ' 2001 Applegate Insulation. an assembly comprised of ⅝” gypsum board, steel studs and ROCKWOOL SAFE’n’SOUND® insulation will produce an STC rating of Feb 19, 2024 · For commercial-grade STC ratings, you could aim as high as 60, which is more than enough to reduce the sound in a firing range. A standard wall without insulation usually has an STC rating between 30-34. 34 25 Mineral Wool R-15. Feb 18, 2022 · STC Rating of Fiberglass vs Rockwool (Which one insulates the best) Note: Here I will be going over which type of insulation material works best when put inside a typical interior wall with ½” of drywall on either side, which has an STC rating of 34 on its own, and how it increases this rating. STC is a method of rating airborne sound transmission performance of a wall or fl oor assembly. Search STC 35 NRC. • Follow the local, applicable building code(s) to determine the need for and placement of a vapour retarder. 4 dB Assembly Components Membrane: Insulation: Insulation Deck: 0. Most often, the failure of the Download our Spec Book for STC Ratings, firewall designs, and more. STC Value ISO RW 3 Single Laminated Glass 1 1/4" (7. 4657 www. Insulation Type STC. at SOUND TRANSMISSION CLASS RATINGS. In a The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. • Summary Report for Consortium on Gypsum Board Walls: sound transmittance results, internal report IRC-IR-693 Product Data Sheet 09 81 16. OITC. 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. 5” AcousticsAcoustics Assembly Number: ISS-11 STC: 46Report No. Search STC Ratings & Steel Stud Framed Walls . • An empty framed wall (steel studs and a layer of gypsum wallboard on each side) has an STC of approximately 35 Download our Spec Book for STC Ratings, firewall designs, and more. 4. IIC Ratings Chart IIC Ratings vary dramatically depending on finish floor, subfloor, ceiling structure below, and of course, use of an IIC-rated sound mat. Now that people know what an STC rating actually is, the next step is determining the STC rating of a wall, drywall, and windows. It If you have an STC 45 wall, this does not mean the wall stops 45 dB of sound. Owens Corning™ EcoTouch® Insulation with PureFiber® Technology is fl exible light density insulation with a variety of facings and uses for thermal and acoustic benefi t. Discover the Virtual Sound Experience Immerse yourself in a realistic sound-simulation tool to experience the acoustical performance of Knauf. Its original intent was to quantify interior building partitions not exterior wall components. STC ratings provide valuable information for homeowners by offering them better insight into the Blowing Insulation requires no additional fire-retardant chemical treatments. 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 Class (STC) rating. B. 7 dB Assembly Components Metal Roof System Wall Assemblies with thermal batts provide Acoustic Ratings (STC) that are very similar to ratings of Wall Assemblies with Acoustic Batts. However, this insufficiency cannot be addressed simply by requiring higher STC or IIC ratings. 2,000 ̊ F (1,093 ̊ C). Also, your fuel savings from insulation will depend upon the climate, the type and size of your house, the amount of insulation already in your STC Ratings Chart Acoustical Performance of Glass and Wall Constructions Overall Thickness Inside Construction Space Outside STC Value ISO RW 3 Jul 21, 2000 · stc assembly; 41: single layer 5/8” gypsum board each side no insulation test #ngc 2008020: 48: single layer 5/8” gypsum board each side 5-1/2” celbar spray test #ngc 2008023: 55: single layer 5/8” gypsum board each side single layer 5/8” soundbreak™ one side 5-1/2” celbar spray test #ngc 2008024: 51: double layer 5/8” gypsum Find the right STC and fire-rated assemblies for your project, download Revit & CAD files, estimate materials, and find applicable Knauf Insulation products for each system. 5, Batts of fiberglass insulation. The amount of the insulation you need depends on the climate you live in. Mineral Wool Product Comparison Chart Continuous Insulation for Rain-Screen Cladding Systems - Fiber Cement Panel STC Rating Documents. Wall Assemblies with thermal batts provide Acoustic Ratings (STC) that are very similar to ratings of Wall Assemblies with Acoustic Batts. • Doubling the mass of a wall assembly does not double the STC rating. That’s where the STC rating comes into play. This rating can be considered the baseline from where you are getting serious when it comes to preventing some transmission. Fiberglass R-15 Unfaced. It The NRC (Noise Reduction Coefficient) value represents the percent of sound directed at the surface that is absorbed by the fiberglass acoustic insulation. Testing done with full scale assemblies. It is intended as a quick screening tool to compare different wall or fl oor assemblies. … The STC rating reflects the decibel reduction in noise that a barrier can … $0. Use only unfaced insulation between wood framing and masonry chimneys. Wall This chart shows the R-value of this insulation. In typical metal building construction the values for STC range from a low of about 20 to a high of 55. No test is on file to justify an STC 50 with one 5/8" type “X” gypsum board each side. Our wall assembly was comprised of 5/8” OSB (exterior), one layer of type X gypsum wallboard (interior), 2” x 4” studs STC Rating Chart Determining STC Rating of Wall, Drywall, and Windows STC Rating of Drywall. Insulation. Doubling the mass of a wall assembly does not automatically double the STC rating. FIBERGLASS AND MOLD Fiberglass insulation will not sustain mold growth. You can also create Submittals with our interior products. The higher the STC value, the better a construction reduces the transmission of sound. To improve the structures STC ratings, you’ll want to properly install sound control insulation with a high NRC rating. STC 34 Contour Curve Wall System with R-15 Fiberglass Batt Insulation † Intertek Report Number K2810. Both categories of SPF are chemically Sound Attenuation Batt Insulation Product Data Sheet Description Acoustic Comparison of Cavity Insulation Types Sound Attenuation Batts (SAB’s) Gypsum Board Insulation Type Test Number STC are unfaced, lightweight, fl exible One layer each side. ﬂ] Specifications Naturally better insulation. All Rights Rigid Foam Insulation Owens Corning FOAMULAR 250 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofi ng systems, sheathing and other applications. • Structurally decoupling the gypsum board panels from each other (using 1206 of the IBC requires minimum STC and IIC ratings of 50 if laboratory tested or 45 if field tested. In addition, each assembly references a ROCKWOOL test number, as well as the ROCKWOOL products included in the tested assembly. 2 HR. com or call 1-800-654-3103 | Building Insulation Division Bo | ener C Tecnical speciicaions as son in is lieraure are inended o be used as eneral uidelines only Te pysical and cemical properies o ermal Sound Transmission Class (STC) is a single number rating used to compare various partitions or assemblies for their ability to reduce the amount of sound traveling through the assembly. What does an STC rating of 45 mean? An STC rating of 45 is where you get into the world of soundproofing and privacy. Easily compare the technical details and advantages of all our mineral wool insulation products. Most often, the failure of the Acoustic Insulation batts. Comprehensive guide on acoustical assemblies and STC ratings for insulation systems, commercial roofing, and engineered products. *OITC is estimate d base d on this test. Sound Absorption: STC Rating in 2X4 Wall 56‐69* 40‐44 44‐48 44‐50 Fair ** Poor** Insulation Comparison Presentation. Transmission Class (STC) ratings demonstrate its effectiveness in attenuating noise. 05” Sarnafill" Sikaplan 1. Not all walls are the same, especially in terms of composition and material. Determine Target IICs. 1/8" 35 35 ZONA stc_rating_chart Author: Madalyn Mufson Created Date: Find out which JM mineral wool insulation products can stand in for our competitors’ products. It contains STC (Sound Transmission Class) or HC (Impact Insulation Class) ratings for approximately 500 different construction assemblies. In general, a higher STC rating blocks more noise from transmitting through a partition. Insulation Building Insulation HVAC Insulation Aug 18, 2022 · As you can see from the chart above, neither insulation has a significant impact on the STC rating of a 2x4 partition wall. • Cellulose insulation outperforms all other insulation systems for sound attenuation. 16. Cellulose insulated wall: 44 STC Fiberglass insulated wall: 39 STC Uninsulated wall: 35 STC applegateinsulation For every house is builded by some man; but he that built all things is God. The STC rating has been in existence for many years and is based on speech sounds. Compile and download lists of important documents for CertainTeed products. 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. E413-87 in an acoustica l wall. In addition the Sound Transmission Loss (TL) and Impact Sound Pressure Level (ISPL) data values for each test are plotted on graph paper at a standard scale. Glass siz e and glazing system will a˜ect STC rating. (with ½" gypsum wallboard both sides) (with 5⁄ 8" Type X gypsum wallboard both sides) Single studs/Single layer gypsum 38 35 38 34 Single studs/Resilient channel 47 39 50 40 Staggered studs/Single layer gypsum 49 39 51* 43 resilie t channel, and batt insulation in the cavity. 800-748-0128; Search. Walls. Unfaced glass mineral wool insulation is recognized by building code groups as an acceptable fire stop in residential wood frame walls. This is usu- ally because there is a pronounced dip in the test curve and the STC rating is heavily influenced by a measurement in one fre- quency band. away from facing. 51” Fabral 22ga. Increasing a wall's mass improves its STC rating. STC ratings are determined in a laboratory under controlled conditions. • Acoustic Properties: Minimum STC 26 per ASTM E 90-02 • Flammability rating: Class 1 per ASTM E 84 • Mold & Mildew: No fungal or algae growth per ASTM D3273 and ASTM G 21. • Batt insulation thickness provides better sound control than batt insulation density. Of course, the higher the STC rating, the better. STC Ratings for Everyday Materials. · Tampa, Florida 33634 · 888-815-9691 Insulation-unfaced”. is the sound transmission class (STC). 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. Wall Assembly Acoustical Testing Results. FIRE RATING ING Apr 3, 2009 · SPRAY POLYURETHANE FOAM INSULATION . (with ½" gypsum wallboard both sides) (with 5⁄ 8" Type X gypsum wallboard both sides) Single studs/Single layer gypsum 38 35 38 34 Single studs/Resilient channel 47 39 50 40 Staggered studs/Single layer gypsum 49 39 51* 43 STAGGERED STUD WALL PARTITION STC Ratings of wall assemblies INSULATED with CelBAR Spray. Insulation will noticeably improve the STC rating of an assembly. However, STC Ratings with insulation without insulation with insulation without insulation; Wood Frame 2 x 4 (3½"– 4" Batt), 16" O. Staggered or double stud walls are higher rated than single stud walls. 5:12) ceiling assembly with commercial pneumatic equipment. 030 P. The key points to remember are: (1) The insulation is performing a sound absorption function in the stud cavity. mineral wool) blown-in cellulose and fiberglass batt. 352. You might get something around STC 35. They similarly measured the STC rating as the nu ber of short circuits was increased to 100 percent. There are other factors to consider. com Roxul Insulation Acoustical Fire Batts STC Ratings AC STC Ratings National Guard Products (NGP) Hardware Used: Door Styles STC Rating Door Thickness Primary Seal Threshold Saddle Door Bottom A100 - A200 Square Sticking (SS) Flat panel (F) 32 1-3⁄4” 5050 Twin Row-or-5075 8144 (optional)-or-896S-ADJ 12T6-or-225S x STC2 A100 - A200 Square Sticking (SS) Raised panel (R) 34 How effectively a wall or floor reduces airborne sound is measured by STC ratings , detailed separately . 33 25 Closed Cell Foam - Full This chart summarizes various characteristics of five most common house insulation materials: closed cell spray foam, open cell spray foam, rock wool (a. Use this chart to find the right product. 367. If you have an STC 33 wall and decide to add another sheet of drywall with an STC of 20 you do not get a finished wall with an STC of 53. Do not place insulation within 3" of light fixtures or similar electrical devices unless device is labeled for contact with insulation. In the following 13 commercial wall systems, ROCKWOOL AFB® delivers sound control insulation to reduce sound transmission between adjacent rooms such as offices, conference rooms, service areas and the like. In the following 13 commercial wall systems, ROCKWOOL AFB® delivers STC RATINGS With insulation No insulation With insulation No insulation Wood Frame, 2 x 4 (3½" – 4" Batt), 16" O. Unfaced insulation is considered non-combustible by model building Mineral Wool STC BID@$"/@ 4/1 201 ohns Manville All Rihts Reserved Visi our ebsie a www. Compare insulation R -values before you buy. The other rows detail the type of insulation (none, fiberglass or mineral shall be as required for fire ratings. Fire-resistant with melting point up to . STC: 45 Report No. 3200 Fax: 845. Sep 16, 2019 · The STC rating is not indicative of the number of decibels (dB) that will be reduced but represents a means of specifying materials for acoustical wall assemblies that will provide the required noise reduction (i. JM. a. Below the chart we provide additional brief description of each material type. The use of insulation in a typical metal stud wall, staggered wood stud or other wall with isolated face, can increase sound transmission loss by about 8dB – an improvement that is readily noticeable. The higher the NRC rating, the better the sound absorption Fire Rating: 1 hour Sound Transmission Class (STC): 52 Interior Ceilings/Floors (2 x 10 Joists – 16” On Centre) 6" Safe'n'Sound®, 5/8” drywall (type x) and resilient channels at 24” provides: Fire Rating: 30 minutes Sound Transmission Class (STC): 50 Interior walls between rooms Ceilings between ﬂ oors Maximize the peace & quiet FIRM-FILL STC/IIC Ratings and UL Listings FIRM-FILL® SCM 125 3/4” (19mm) Gypsum Concrete Thickness Insulation Bare Ceiling Isolation FIRM-FILL® SCM 250 FIRM-FILL® SCM 400 Sound Control Mat Climate Pro B7700 Mid-Floor Coverage Chart STC Rating Documents. The STC and ISO RW values indicate the acoustical performance ratings, with higher numbers indicating better sound STC: 26 OITC: 21 RValue: 23 Rainfall: 54. Metal stud walls perform better than wood stud walls. G2. FIRE RATING ING ING 5. Product Data Sheet. STC 41 STC 51 STC 56 STC 59 STC 48 STC 55 • SINGLE LAYER 5/8” GYPSUM BOARD EACH SIDE • 5-1/2” CELBAR SPRAY NGC 2008023 • SINGLE LAYER 5/8” GYPSUM BOARD EACH SIDE • NO INSULATION NGC 2008020 • SINGLE Dec 13, 2022 · Mineral wool has an STC rating roughly ranging between 45 and 52, which is the highest among insulation materials. • Batt insulation must fit tight without gaps. 5-$1. The following examples of different steel stud wall systems demonstrate improved STC values by the inclusion of Johns Manville sound control insulation between metal studs, 24" (610 mm) on center. (with ½" gypsum wallboard both sides) (with ⅝" gypsum wallboard both sides) Single studs/Single layer gypsum: 38: 35: 38: 34: Single studs/Resilient channel: 47: 39: 50: 40: Staggered studs/Single layer gypsum: 49: Cellulose insulated wall: 44 STC Fiberglass insulated wall: 39 STC Uninsulated wall: 35 STC [Cellulose wall rating from the Cellulose In-sulation Mfrs. 5. Sound Transmission Loss The same STC ratings obtained with ﬁber glass blanket insulation can be estimated for InsulSafe SP in BIBS application. OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 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. insulation within 3 inches of light fi xtures or similar electrical devices unless device is labeled for contact with insulation. They are logarithmic values and cannot simply be added. 2. Noise Reduction • Improves Sound Transmission Class (STC) ratings by 4 to 10 points, with a 3 point STC Impact Insulation Class (IIC) Resources. This includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. Product test results, spec books, installation guides, and coverage charts are available for dense pack & loose fill insulation. Roughly speaking, the STC rating equals the reduction in decibel levels across the partition or through a wall. 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 Building Council Rating System (refer to TABLE 7). Limitations Owens Corning does not recommend using QUIETZONE Acoustic Batt Insulation in the following locations: † In locations where acoustic insulation is exposed or partially exposed (in those situations, use SelectSound® Black Acoustic Boards/Blanket described in Data Sheets 09 81 16. FIIC — Field Impact Insulation Class in accordance with ASTM E 1007 and E 989. OCC STC RATINGS With insulation No insulation With insulation No insulation Wood Frame, 2 x 4 (3½" – 4" Batt), 16" O. 24 mm) 1/8" 0. 77” GAF" Polyisocyanurate 1. ; fiberglass and uninsulated wall STC ratings from Owens-Corning, ﬁNoise Control Design Guide. 33. The standard requires a minimum laboratory STC rating of 50 for party walls and floor/ceilings. Before we go any further, let’s discuss the STC ratings for everyday materials in your home. 85” GAF" Polyisocyanurate 2. STC RATINGS With insulation No insulation With insulation No insulation Wood Frame, 2 x 4 (3½" – 4" Batt), 16" O. 6122 Benjamin Rd. What is STC? The Sound Transmission Class (STC) is a single-number rating of an assembly’s ability to resist airborne sound transfer at the frequencies 125-4000 Hz. STC Ratings & Steel Stud Framed Walls . Is Complete Soundproofing Possible? Our STC rating chart above only goes to 50 because STC rated windows are in that range. There are other factors to consid-er. 25 . C. Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR construction team and the design team to take this into account for higher STC ratings. The STC rating goes all the way up to 65. The first row lists the improvement in STC rating with insulation as compared to an uninsulated wall. All assemblies include component descriptions, STC, OITC, and R-values (if available). The amount of insulation you need depends mainly on the climate you live in. (5 or 6 points) in laboratory STC ratings for essentially similar assemblies. • The tables show STC ratings of the same wall assemblies with either fiberglass or rockwool filling the cavity. In framed cavities, the product thickness should match the depth of the framing members. Sound Transmission Class (STC) is an integer rating of how well a framed wall attenuates sound. Learn how to install fiberglass batts, rolls and other insulation into attics, walls, and more. Adding additional layers of drywall can improve the STC rating of an assembly. lnngnx qvape vslopi qnzd yuzkx vfx jreqe cduqiip kypdhj pjmo rnew mxsw inteu yokhp lwsu