Best oitc rating chart pdf. 3 cfm/ft2 (test pressure is always 1.

Best oitc rating chart pdf OITC values also range from 25 to 75, with higher values translating to better outdoor noise reduction. Best Performing Laminated Insulating Glass Zero reported seal failures for 5+ years, compared to industry average of 2% yearly failure rate. The STC (Sound Transmission Class) is a rating system for interior building partitions and viewing windows used to categorize acoustic performance. The second column is the rating of the operable door Reduction in sound based on OITC ratings of Pella Lifestyle Series windows with respective performance package compared to a single-pane wood or vinyl window with an OITC of 19. The Delta IIC rating is the best sound rating to consider when comparing the performance of different types of underlayment over full pour concrete (4" or thicker). ] STC/OITC:29 G3302. GreenFiber sales professionals will also be happy to consult with you about the best ways to utilize our insulation for sound control in any individual project. Calculated by using the sound transmission loss values in the 80 Pella Lifestyle Series P - Contentstack Jan 23, 2025 · Single Number Rating: The higher the OITC number, the better the sound isolation is. It includes the Sound Transmission Class (STC) rating and Outside-Inside Transmission Class (OITC) rating, as well as sound transmission loss data across a range of frequencies, for various glass makeups and thicknesses. Industry standard is STC 26 for single hung windows. GENERIC STC and OITC RATINGS Not to be used for design or specification purposes Glass Product Type and Thickness STC Rating OITC Rating Monolithic 3/ 32 ” 26 - 1/ 8 ” 29 - ¼” 31 29 ½” 36 33 Sealed Insulating Glass Units 1/ 8 ” glass + ¼” air + 1/ 8 ” glass 28 26 ¼” glass + ½” air + ¼” glass 35 28 The final STC/OITC rating of the window assembly could vary because of the influence of the framing members and the construction of the window assembly. OITC and Soundproofing Windows Aug 8, 2022 · 4. Actual results may vary. ENERGY STAR® Options Nov 25, 2022 · The difference between the sound level inside the window and the sound level outside the window, measured in decibels, is the STC rating. Test Specimen E413-87 in an acoustical wall. 10-113-11-R1 Rainfall: G3302. S. hmfexpress. Feb 20, 2024 · Outdoor-Indoor Transmission Class (OITC): OITC is similar to STC but focuses on outdoor-to-indoor sound transmission, including traffic and other outdoor noises. How the OITC Rating is Measured Like the STC rating System, OITC measures sound intensity best. The ENERGY STAR climate map below shows four climate zones for the United States. 9°C Thin Gauge Stainless Steel 34. Because of the larger range in expected sound, OITC values are determined for lower frequencies as well, in the range of 80 to 4000 hertz. Glass size and glazing system will a ect STC rating. 3°F/5. 2. It explains: 1) The STC and RW ratings are based on comparing measured transmission loss data to numbered reference curves, with the number of the best-fitting curve being the rating. 08/31/2023 Types of Glass Getting the right type of glass – or the right combination of types – can be critical to the success of your project. While both ratings measure a material’s ability to block sound, they differ in the type of noise they assess and their applications. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. These advantage, including details on wall assemblies and their STC/OITC ratings. It is used to specify the sound transmission loss properties of exterior building elements such as walls and windows. (OITC 37) STC 46 pr. 4 dB Assembly Components Membrane: Insulation: Insulation Deck: 0. RW is similar but covers 100Hz to 3. North America, a rating system was introduced in 1970 under ASTM E 413 “Classification for Rating Sound Insulation. If sound reduction is a priority, look for a window in the 30-35 STC range. 250 Series Double-Hung. When evaluating the soundproofing needs of a space, it’s essential to understand the distinction between Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC). The document discusses methods for calculating various acoustic ratings including STC, RW, MTC, and OITC. While OITC is often a slightly more appropriate way to evaluate windows, it isn’t nearly as recognized as STC, nor has it Thermal Conductivity Chart Super Spacer 42. This section defines the various kinds of glass, how they’re made, and their strengths %PDF-1. This rating increases to STC 42-45 with steel studs. Call us with any questions! Performance documents for altitude limits, NFRC ratings, center of glass, joining window load table, air infiltration, and more. 14a Laboratory measured STC and OITC ratings and Rw for various glass configurations. 3 cfm/ft2 (test pressure is always 1. The frequency range used is typical of outdoor traffi c noises. The STC and OITC rating measures a window’s ability to block sound transmission. The final STC/OITC rating of the window assembly will typically be reduced from the base glass acoustical rating. 14-113-11-R1 Acoustic and Thermal Performance STC: 26 OITC: 21 RValue: 23 Rainfall: 54. Measured on a numerical scale, a higher number means less exterior noise inside your home. 7°C ® Super Spacer® TriSeal™ +14. Pella. Nov 24, 2022 · Intertek – one of the largest industrial testing companies in the world – tests windows in its facilities for both STC and OITC ratings. Please see the reverse side for a comparison of how our cellulose and 4-inch Sound Control Batts perform in Professionals use the OITC rating System less frequently than the STC rating System. 26 30 26 30 33 33 34 36 37 35 32 32 36 40 43. The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. OITC testing Oct 28, 2024 · Quanex’s Super Spacer® Standard, featuring polymer EPDM (Ethylene-propylene-diene-monomer) construction, dependably delivers high performance for insulating glass (IG) units, including excellent resistance to ozone, weathering, water and aging, while maintaining its flexibility through wide changes in temperature and barometric pressure. This data is accurate as of October 2018. Th ose ranges, along with the glazing to achieve them, are as follows: I. To determine a single OITC for the wall system, first calculate the OITC using both Equations 1 and 2, using the combined weight of both wythes, then linearly interpolate between the two resulting OITC ratings based on the relative weights of the includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. Typically it has been said that highway noise is OITC 20-27, downtown congestion and trains generally are 27-35, and aircraft is OITC 35 and higher depending on nearness to the airport. STC ratings are available for most common assemblies as well as for windows and doors. For example, if your neighbor has a sub woofer-equipped sound System, you may want to consider OITC ratings for all of your barriers, interior and exterior. Oct 16, 2023 · acoustical ratings not available for this glass combination TL23-110 X--> X 30 28 04/26/23--> X 33 28 12/12/22 TL22-247 TL22-246 acoustical ratings not available for this glass combination X X <--32 27 12/12/22 File Name: Acoustical Ratings - V150 Due to continual product research and development, details listed are subject to change at any time. 2) The MTC rating was designed to better account for low frequency noise transmission The Delta IIC rating is the performance gain between the first and second test. Today, the OITC rating System is used to assess any barrier meant to block out low frequency sound. STC rating determined in accordance with ASTM E 413. These ratings provide an evaluation and rank ordering of the performance of test specimens based on their effectiveness at controlling the sound of a specific outdoor sound spectrum Window Style Unit Size IG Unit Glazing STC OITC Rating Overall Grade Rating Double-Hung 48" x 72" — AAMA/WDMA/CSA 101/I. Ask about ENERGY STAR The chart below indicates the STC rating of specially made acoustic doors using various applications of gasketing. Significant Sound Reduction Significantly reduces exterior sounds in your home with an STC rating of 30–35 depending on the product. 24 Page 1 of 7 Due to continual product research and development, details listed are subject to change at any time new rating to describe products that comply to the standard. J2247-13-303-11-R0 Insulation Included OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000. What this means to the specifier is, based on the optional higher performance grade chart, the laboratory tested air infiltration was less than 0. 77” GAF" Polyisocyanurate OITC (Outdoor-Indoor Transmission Class) measures outdoor-to-indoor sounds, like traffic, airplane noise, and construction. The OITC is the preferred rating for exterior walls and roofs of metal buildings. The document provides acoustic performance data tables for insulating glass, triple insulating glass, monolithic glass, and laminated glass constructions. STC ratings accurately reflect the performance of windows installed on the inside of buildings, whereas OITC ratings more accurately reflect the performance of windows installed on the outside. Sound Transmission Loss (dB) 36 33. 400 Series Frenchwood® Hinged Patio Door Hardware (Trim Set) Exploded View STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Trinsic I V300 updated 04. STC In this case, Equation 2, representing a best-fit relationship for clay masonry, must also be used. Fixed Frame Direct Set Window — Dual-Pane Insulating Glass Reduction in sound based on OITC ratings of Pella Lifestyle Series windows with respective performance package compared to a single-pane wood or vinyl window with an OITC of 19. For example, acoustic glass will have the highest STC rating but can be very expensive and challenging to source. • OITC 47 – STC 50 • ISO 140-18 Rainfall Sound Rating 36. See table above for more information. and calculated in accordance with ASTM E1332 (1990). An STC rating of 50 (which is not a typical rating for any window) would block as much as 95% of external noise. 3 cfm/ft2), the product ucts, there are typical ranges of STC & OITC ratings based on the glazing make-up. 3 cfm/ft2), the product Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. What Is an OITC STC. The sound attenuation properties of a glazing type will be achieved with the plastic interlayer Dec 31, 2024 · STC Ratings vs. 3°F/2. 1 Nov 24, 2022 · Intertek – one of the largest industrial testing companies in the world – tests windows in its facilities for both STC and OITC ratings. For both measures, the higher the number the better. Enhance your savings by selecting specific windows for different sides of the house. frequencies used in STC ratings correlate in a general way with subjective impressions of sound transmissions for speech, radio, and television. ” This rating system is the Sound Transmission Class, or STC classification system. 8°C average sightline temperature difference *test notes can be found on the bottom of the next page 28. Except for the acoustic properties, light properties, energy properties, thermal properties, safety properties, and even thickness & weight included in the file. Thickness Exterior Glass . OITC ratings determined in accordance with ASTM E 1332. 3°F/-2. When choosing building envelope designs, designing using the OITC rating rating of positive 40 psf and negative 40 psf. As with STC ratings, the higher the OITC number, the more sound resistant the product is. [ss] [ss] [ss] [ss] wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi-wpi- includes both STC and OITC ratings for steel and wood stud walls, considering both interior and exterior assemblies. For a glazing installed on a building envelope, the Outdoor-Indoor Transmission Class (OITC) rating describes its approximate decibel level reduction of sounds such as those of roadway and rail traffic, and of nearby aircraft takeoffs. The OITC rating is thus more applicable to garage doors than the STC rating. Air Space Secondary Window Glazing (Storm Window) STC Rating Range OITC Rating Range 1/8” annealed (DSB) + 1/8” annealed (DSB) 1/2” None 27-28 23-24 STC OITC Test Date Test Number Operating Style Series Numbers Tested Size OA Glass 1 Glass 2 Acoustical Ratings - Ultra I C650 updated 04. It is used to provide an estimate of the sound insulation performance of a facade or building elements. Feb 11, 2025 · 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. 1. Save as PDF 800 Park Drive , Owatonna , MN 55060 US | (800) 533-2080 Ultra™ Series Performance Ratings Updated: 7/2020 size bs/vs bs/vs bs/vs Half Vent 6060 -310-3265 LC-PG-30 0. Fax: (910) 452-1848 Pella 2024 Architectural Design Manual Division 08 – Openings Windows and Doors www. 75 5 0 1 4 12 12 0 6 0 48 Today, the OITC rating System is used to assess any barrier meant to block out low frequency sound. It is best to use specific sound transmission loss values, in conjunction with actual spectra of outdoor and indoor sound levels, for making final selections of facade elements. 15kHz and is used in Europe. The same process is used to determine STC ratings for doors. For example, if your neighbor has a subwoofer-equipped sound System, you may want to consider OITC ratings for all of your barriers, interior and exterior. between OITC and STC? OITC (Outside Inside Transmission Class) A single-number rating calculated in accordance with ASTM E 1332, using values of outdoor-indoor transmission loss. Two common ratings for windows and doors are the Sound Transmission Class (STC) and Outdoor-Indoor Transmission Class (OITC) Ratings. 05” Sarnafill" Sikaplan 1. Example. 4°C Thermally Broken Aluminum Super Spacer® Selection Chart Sep 24, 2023 · Next, figure out what’ll be the best type of glass for your project. 52 50 R50 Nov 4, 2016 · The OITC rating (referenced in ASTM E1332, Standard Classification for Determination of Outdoor/Indoor Transmission Class) is calculated from the following formula, using a logarithmic summation of individual third OB TL measurements: OITC = 100. 20-113-11-R1 STC/OITC: G3302. 0°F/ 7. For all of these acoustic ratings, the greater the rating, the better is its resistance to sound transmission. *OITC is estimated based on this test. Use OITC when considering intrusion of noise into a building from roads,trains or aircraft. OITC Outdoor-Indoor Transmission Class (or OITC) is a relatively new way of measuring sound transmission, an OITC rating is To start, the higher the OITC rating, the less sound will travel through the window. OITC Ratings. The first measure of acoustic performance is referred to as the Sound Transmission Class or STC. com or call us to learn more about our sound rated openings. The STC rating for a basic insulated 2×4 wall with a single layer of drywall on each side is 35-38. GENERIC STC and OITC RATINGS Not to be used for design or specification purposes Glass Product Type and Thickness STC Rating OITC Rating Monolithic 3/ 32 ” 26 - 1/ 8 ” 29 - ¼” 31 29 ½” 36 33 Sealed Insulating Glass Units 1/ 8 ” glass + ¼” air + 1/ 8 ” glass 28 26 ¼” glass + ½” air + ¼” glass 35 28 3 Reduction in sound based on OITC ratings of Pella Lifestyle Series windows with respective performance package compared to a single-pane wood or vinyl window with an OITC of 19. 02 3. NRC’s Laboratory Measurements of the Sound Insulation of Building Façade Elements3 has OITC and STC ratings for common walls,roofs and windows. A higher number shows better performance. Oldcastle Glass has acknowledged OITC by providing charts which indicate the STC and OITC ratings of various glass assembly configurations. 22. “In places like New York City, it’s all OITC,” he says. OITC single hung; 2210 2211 2230 2230J 2270 picture window (slider frame) 2310 2311 2331 2331J 2370. J2247-13-303-11-R0 Insulation Included These ratings are all single numbers used for comparison of various assemblies. 5°F/1. 5 2 01 4 6 Double Vent 12060 48 S2009-553 HS-LC-25 0. This rating is based on the difference between the overall A-weighted sound level of the sound spectrum given in Table 1 and the overall A-weighted sound level of the spectrum that results from arithmetically subtracting the transmission loss or noise they let pass through. 85” GAF" Polyisocyanurate 2. 11 CFM 7. Outdoor to Indoor Sound Transmission Class (OITC) The OITC rating is typically applied to façades (exterior walls) and façade elements (windows and doors) exposed to transportation noises. One thing that I’m not clear on: how would I know how high of an OITC rating I need? I’m guessing that I would use a sound/decibel meter to measure the undesired noise, estimate a desirable/tolerable noise level (in decibels), and calculate the difference (bad noise decibels minus good noise decibels, if you will). 17. Overall Glazing . The STC rating for a six inch concrete sub-floor is 52-55. The OITC (Outdoor Indoor Transmission Class) rating was created to test exterior walls and their elements (windows and doors). In general, test specimens with higher STC ratings will have better acoustical performance than those with lower ratings. Thickness. To determine the specific STC ratings of glass and a rating. May 6, 2020 · Outside-Inside Transmission Class Rating used to classify acoustic performance of glazing in exterior applications. Single Number Ratings –OITC Intent: a single number rating to assess the isolation provided of different assemblies specifically for traffic and aircraft noise. The charts include (OITC 33) HMF EXPRESS Current STC Offering (All 1 3/4" Thick Doors, up to 4080, and available in 2-3 weeks lead time) STC 42 (OITC 35) STC 46 (OITC 36) STC 46 pr. Although very similar, the OITC rating system is aimed at lower frequencies, such as construction work, rumbling engines, low-flying planes, and car horns, and it utilizes a wider frequency May 22, 2022 · Thanks, Terry, for the helpful information. The STC rating for a basic wood structure floor/ceiling is 40-43. com LS-DH-2 Lifestyle Series Double-Hung (—) = Not Available Feb 11, 2025 · OITC: This is a much newer rating system developed specifically to measure the extent to which an exterior wall insulates against outdoor noises in the low- to midfrequency ranges: heavy traffic, airplanes, trains, etc. Rating. The final STC/OITC rating of the window assembly could vary because of the influence of the framing members and the construction of the window assembly. 7 dB This document provides information on calculating various acoustic transmission ratings including STC, RW, MTC, and OITC. 24 Page 1 of 2 Due to continual product research and development, details listed are subject to change at any time Sound Control. Our spec sheets offer a detailed look at individual products, and include information on product features, options, and performance data. This new version dated “-08” has been adopted by the 2009 International Building Code (IBC) and the International Residential Code (IRC). "Sound Transmission Class (STC)" and "Outdoor/Indoor Transmission Class (OITC)" ratings are for individual units based on independent tests and represent entire unit. Explore noise reducing windows and doors from Pella. OITC rating (frequency range - 80 to 4000 hertz) The OITC rating (1990) provides a standardized way to compare products such as windows and doors made by competing manufacturers. The higher the STC value, the better the wall assembly is at reducing sound. Rev. The first column is the rating of the door panel only; tested in a static inoperable condition to determine the sound transmission through the door. Sep 21, 2018 · The OITC rating is used to measure the sound transfer between outdoor and indoor spaces. This involves balancing STC ratings, availability, and budget. Performance Grade ratings are being used to replace Design Pressure Ratings as the preferred Class (OITC) 70 SERIES SS 27 23 DS 28 22 3mm/4mm 33 26 Laminated DS-DS/060/DS 35 30 SS 27 23 American Craftsman® Product Performance Sound Transmission Ratings. The OITC rating system is mostly consulted when there are low-frequency sounds involved between 80 to 100 decibels that can't be calculated by the STC rating. In fact, dual-pane windows with dissimilar glass can achieve STC ratings nearly as high, if not as high, as triple-pane or laminated glass. Thickness Third Pane . Here’s a look at what you 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. Glass size and glazing system will affect STC rating. 4. Rating OITC . File Name: STC Ratings - Trinsic Due to continual product STC 28 / OITC 20 R-10 Faced 202-96 Insulation Over the Girts STC 21 / OITC 17 No Insulation STC 29 / OITC 20 R-13 Faced 202-96 Insulation Over the Girts Assemblies tested in accordance with ASTM E 90. (OITC 37) STC (OITC 39) STC (OITC 39) For more information visit www. com. ucts, there are typical ranges of STC & OITC ratings based on the glazing make-up. A good OITC window rating is 30+ and usually comes with thicker glass (½” or more) and added glazing for additional sound reduction. The U. Lepage offers a variety of acoustic glass with high ratings. According to Miller, the OITC rating is becoming especially popular for windows in urban areas. 14 − 10log 10 å f 10((L f-TL f +A f) / 10) Where: May 14, 2021 · Type glass thickness-Calculate-Download performance datasheet in PDF file. A good level of isolation for walls and ceilings is STC 50 plus. com 888-412-3726 info@babcockdavis. An OITC rating of 40 indicates that the assembly provides a reasonable reduction in outdoor noise levels and will provide better sound isolation compared to an assembly with an OITC rating of 30. 1 4. A typical dual-pane window has an STC rating of 25-30. Check Your Local Replacement Window Regulations. Department of Housing and Urban Development (HUD) provides information on housing policies, programs, and resources. 04-113-11-R1 Rainfall: G3302. The STC rating Windows and doors can help block outside noises whether you live in the city or on a farm. The OITC (Outside-Inside Transmlssion Class) rating is used to classify acoustic performance of glazing in exterior transmission class (OITC). 1°C Aluminum 37. The OITC (Outside-Inside Transmission Class) rating is used to classify acoustic performance of glazing in exterior applications. Acoustical Guide – Determining Minimum STC Rating Figure 1. Shielding a building’s environment from increasing noise levels, especially near airports and busy highways, is a critical factor in the specification of glazing materials for both new and renovated structures. * * [The data and information set forth are based on samples tested and are not guaranteed for all samples or applications. 57 psf and the allowable airflow is 0. Consider window orientation. Glazing I. 1 This classification provides a single number rating for transmission loss or noise reduction data that have been measured or calculated. For example, if the transmitter played a sound at 60 decibels and the receiver picked up 30 decibels, the STC rating would be 30. 2/A440-05 0. The OITC uses outside noise sources such as traffic, aircraft and trains to calculate a single-number rating. G. 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. MTC was developed to address shortcomings of STC and RW at low frequencies important for The TMS 302 Sound Standard provides minimum requirements for rating masonry walls for sound transmission class (STC) and outdoor-indoor transmission class (OITC) based on testing calibrated calculation procedures. Oct 18, 2023 · What Is a Good OITC Rating for Windows? Windows are typically the weakest part of a building assembly when it comes to acoustics, which is why you’d want to know the OITC rating. 5” Acoustics Assembly Number: ISS-00 STC: 43 OITC: 28 Report No. Calculated by using the sound transmission loss values in the 80 to 4000 Hz range as measured in accordance with ASTM E-90(09). It uses a specific decibel (Db) range (80 Hz to 4000 Hz) which makes it a better measure for low sound frequencies such as road noise. The STC rating quantifies interior sound transmission while the OITC rating is recommended for exterior glass selection. The updated TMS 302 Sound Standard provides minimum requirements for rating masonry walls for sound transmission class (STC) and outdoor-indoor transmission class (OITC) based on calculation. Determine U-Factor and SHGC ENERGY STAR standards based on your climate zone. On the other hand, double glazing is readily available. 3. Oct 10, 2024 · OITC is a very new rating in the world of acoustics and not all products carry an OITC rating, as they may predate that testing being more commonplace. Each methodology -- aircraft, traffic and rail -- involves the four steps outlined in the flow chart in Figure 1. STC 43 Assembly Components Finish material 5/8” Gypsum Size 2 1/2” Steel Stud Spacing 16” oc Product AFB Thickness 1. Feb 22, 2024 · However, even with OITC being the newer creation, the STC rating system is still the preferred rating method among professionals in soundproofing. STC measures sound insulation from 125Hz to 4kHz and is calculated by comparing measured transmission loss data to reference curves. Introducing the INDUSTRY’S BEST OITC & Rainfall Ratings babcockdavis. com Block the intrusion of exterior environmental noise while providing safety and security with the industry’s best OITC 47 – STC 50 automatic Accoustical Smoke Vent. V250-DH-2. 5 %âãÏÓ 5400 0 obj > endobj 5422 0 obj >/Filter/FlateDecode/ID[89139DBBA4CA1946A36F0C9141707515>6670E99A9E87094D91214E8C58D95068>]/Index[5400 35]/Info 5399 The STC (Sound Transmission Class) rating is a single-number rating system for interior building partitions and viewing windows used to categorize acoustic performance. Jan 18, 2022 · 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 File Name: STC Ratings - Style Line | V250 Due to continual product research and development, details listed are subject to change at any time. Interior Glass . ruwq kkur qyrik pkco qlzsfu stqnrbf ikt bxljq xcv tthmq vann dplqit rrytj mpwx zyduco