class a flame spread rating

Class D materials have a flame spread rating of between 201 and 500. Class: Flame Spread Index: Smoke Development Rating: Class 1 or A: 0 - 25: 450 maximum: Class 2 or B: 26 - 75: 450 maximum: Class 3 or C: 76-200: 450 maximum: Mill Locations. CLASS A = Flame Spread Index of 25 or less; the best possible rating, awarded to fire-retardant building products, like concrete. The test takes into account bot the flame spread and the smoke development. The index is a numerical reference and is determined by the response of the material during a ten minute test. Such surfaces shall conform to the requirements of Cl.3.13.1.. b. This rating is . 101. o Class A Flame Spread Rating (ASTM E-84 / IBC 2303.2 / ASTM E2768 / UL 273 / UBC 8-1) per QAI Laboratories, Inc. Test Report TJ2773 • Flame Spread Index: 0 • Smoke Index: 0 - 5 o Load Bearing 2-Hour Fire-Rated Exterior Bearing Walls for Type III & Type V Construction (ASTM E119 / UL263) per . Having a Class A rating generally refers to the ASTM E84 standard for flame spread and smoke generation. Standard Classification System: Code officials and regulatory agencies frequently use the Flame Spread Index and Class B fire retardants have a flame spread rating of between 26 and 75. A Class C rating flame spread index is: 76-200. Textile wall and ceiling coverings and expanded vinyl wall and ceiling coverings shall have a Class A flame spread index in accordance with ASTM E84 or UL 723 and be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2. The low rat-ings for these species provide an advantage over other species and wood products used in the same It To achieve a Class 0 Fire Rating, products must meet specific British Standards and pass a series of tests designed to test flame spread and propagation. Class D materials have a flame spread rating of between 201 and 500. These materials are effective against severe fire exposure. A Class "A" is the highest rating a product can score when tested under this testing method. Class A has a spread of 0 to 25 and a smoke development of less than 450. Test: Measures the amount of time for the flame to spread upwards and burn a stop cord placed at the top of the sample.Typically, the easiest of all ratings to achieve. Table 3.1.13.2. Class B indicates a material that has a flame spread measuring somewhere between 26 and 75 on the scale. Fire Ratings E-84 Class I/A Flame Spread <25 Smoke Generation <450 CAN/ULC Fire Ratings S102-M88 Flame Spread 25 Smoke Generation 450 Panel Specifications 1. Slightly different flame spread indices, usually lower, result when recent E-84 flame spread calculation techniques are applied to older wood product data. The laminated product shall have a Class A, B, or C flame spread index and smoke-developed index, based on the requirements of Table 803.13, in accordance with ASTM E84 or UL 723. They are UL fire rated; see UL fire resistance directory.) 6 x 18 in. Combustible deck Classifications, such as over OSB or plywood, however, require two additional tests - the burning brand test and the intermittent flame test. These materials are effective against severe fire exposure. If the numeric value is less than 25, then a Class A flame spread index is assigned. A material rated as Class A would have a lower flame spread, and therefore a better performance rating, than a Class C material. Class A Interior Finish: Flame Spread 0 - 25. What does NFPA 701 mean? Test specimen preparation and mounting shall be in accordance with ASTM E2404. The ASTM E-108/UL 790 roof coverings test does not produce a flame spread rating. ASTM E84 Acceptance Criteria. 2. Class A = Flame Spread Index of 25 or less; the best possible rating, awarded to fire-retardant building products like concrete. The ASTM E 84 or "tunnel test" determines . Flame spread or surface burning characteristics rating is a ranking derived by laboratory standard test methodology of a material's propensity to burn rapidly and spread flames. Class 0 - Surface of no flame spread. 101, "Life Safety Code" , 2006 Edition, or IBC (International Building Code), 2006 Edition, Chapter 8, Interior Finishes, Section 803, if they pass any . Class B fire retardants have a flame spread rating of between 26 and 75. Slightly different flame spread indices, usually lower, result when recent E-84 flame spread calculation techniques are applied to older wood product data. This was calculated by . Materials that fall into Class A or Class 1 include things like brick, gypsum wallboard, and fiber cement exterior materials. This refers to surfaces on which during the first 1½ mins of test, the spread of flame does not exceed 165mm and the final spread of flame does not exceed 165mm under the relevant test conditions. Class A Fire & Smoke Rated This test measures a material's reaction after being exposed to fire, in terms of flame spread and smoke density. Flame-Spread Rating (1) Except as otherwise required or permitted by this Subsection, the flame-spread rating of interior wall and ceiling finishes, including glazing and skylights, shall be not more than 150 and shall conform to Table 3.1.13.2. Learn why leading contractors and building professionals prefer STARC by seeing our full list of advantages. (This may be by classification letter, i.e. Using these measurements, the organization classifies each material into a fire rating. These materials do not burn well and are very unlikely to contribute fuel to a fire. The Class 1 Fire Rating definition is the flame spread index and smoke development index, which means how fast a flame will spread when introduced to the material and how much smoke it produces. Each building type has its own requirements for fire rating. The Ontario Building Code | Flame-Spread Rating 3.1.13.2. What is a Class 2 fire rating? Fire Ratings E-84 Class I/A Flame Spread <25 Smoke Generation <450 CAN/ULC Fire Ratings S102-M88 Flame Spread 25 Smoke Generation 450 Panel Specifications 1. They refer to the degree of flame spread on an ignited panel 900mm x 230mm cut from a laminate. These materials are effective against moderate fire exposure. In the flame-spread rating test, a score of 0 to 25 constitutes a Class 1 rating. Marlite FRP Panels are manufactured using a homogenous mixture of calcium carbonate, fiberglass and resin. Class C Fire Rated Plywood. Test specimen preparation and mounting shall be in accordance with ASTM E2579. Test specimen preparation and mounting shall be in accordance with ASTM E2579. The building code lists different classes that may be assigned based on the values obtained by the testing. Class A: Flame Spread 0-25; smoke-developed 0-450 ii. This test evaluates the following performance criteria: 1) flame penetration through the roof covering into the attic space, 2) flame spread over the surface of the roof covering, and 3) the propensity for the roof covering to become dislodged and generate embers. For the burning brand, an ignited wood lattice (or brand) is placed on the test specimen. *Actual length and width panel dimensions are one inch longer than stated size. Both are classifications of the surface spread of flame test (BS 476 part 7). (1) Wood that has been given a Class C rating has a flame spread number of 76 to 200. The National Fire Protection Association (NFPA) Life Safety Code has five classes of flame spread, which rates materials on a scale of 0-500+. A Class 1, or Class A, fire rating means that the building material is highly resistant to fire and does not spread flames quickly. Ceilume's Fire Ratings and Approvals. 2. 0,100. For regulatory purposes, the requirement for smoke developed index is usually 450 or less. Conclusion For example, if a product scored as a Class "A" was compared to a product that is a Class "C" the flame spread is over 4 times faster on the Class "C" product. Red oak represents a Flame Spread Index of 100 and a Smoke Density Index of 100. For the purpose of applying flame spread limits to interior finish material, NFPA Standard No. For regulatory purposes, interior finish materials are classified according to their flame spread. 3 times longer burn-through resistance than standard Wood Sheathing. Find the fire classification on our Product Specifications page. Class A is "the best", meaning that it has the least amount of flame spread when tested in accordance with ASTM E84-16. A material rated as Class A would have a lower flame spread, and therefore a better performance rating, than a Class C material. Panel sizes: 4' & 5' widths and lengths up to 18'*. Method: Specimens are subjected to a 5/8" flame for 1 second. 101 - The Life Safety Code groups flame spread ratings into five classes: Class A flame spread rating 0-25 Class B flame spread rating 26-75 Class C flame spread rating 76-200 Class D flame spread rating 201-500 Class E flame spread rating over 500 The maximum flame spread is 6 feet for a Class A rated roof, 8 feet for Class B, and 13 feet for Class C. The slope of the test specimen is preselected, and since steeper slopes are more of a challenge due to melting material feeding the fire, the rating applies to the maximum slope passed. Cement board is burned and represents a Flame Spread Index of 0 and a Smoke Density Index of 0. CLASS A (I) Flame Spread of 25 or Less Smoke Development of 450 or Less CLASS B (II) Flame Spread between 26 and 75 Smoke Development of 450 or Less CLASS C (III) Flame Spread between 75 and 200 Smoke Development of 450 or Less GLASBORD PRODUCS: FXE, FX, FXR, FSFM, FSI, SAN GLASBORD PRODUCS: PIF, FTSTF, PSIF, CGI, RE, REI, PSM, PWI, LPCE To obtain a Class A rating, flame spread cannot exceed six feet during the 10-minute test. Class C Interior Finish: Flame Spread 76 - 200. The classes are 0-25 for Class A or I, 26-75 for Class B or II, and 76-200 for Class C or III. There is nothing beyond or above a Class "A". This wallcovering is classified as Class A: Flame spread 0-25, smoke-developed 0-450. Class C fire retardants have a flame spread rating of between 76 and 200. … These materials are effective against light fire exposure. This means that the lower the score, the longer it takes fire to reach the top of the paper. The low rat-ings for these species provide an advantage over other species and wood products used in the same This rating measures the rate at which a flame will spread over a material. All of Ceilume's ceiling tiles and panels are Class A Fire Rated for surface burning characteristics, flame spread, and smoke development. For safety reasons, all American interior wall and ceiling finishes are grouped into classes according to their flame spread and smoke-developed indexes in accordance with ASTM E 84. Class A has an FSR of 0 to 25, making it is able to withstand fire for longer than any of the other classifications. 3 Sources: The laminated product shall have a Class A, B, or C flame spread index and smoke-developed index, based on the requirements of Table 803.13, in accordance with ASTM E84 or UL 723. The score is relative and balanced between asbestos cement sheet, with a score of 0, and pure red oak, with a score of 100. These materials are effective against severe fire exposure. The classification rating shall be identified in the specifications of the material (s) by the manufacturer. safety ratings. This is a flame spread of 25 or less and smoke developed of 45 or less. Elevator wall panels. The most commonly used flame-spread classifications are: Class I or A, with a 0-25 FSR Class II or B with a 26-75 FSR Class III or C with a 76-200 FSR Class B: Flame Spread 26-75; smoke-developed 0-450 iii. Flame-Spread Ratings. Two Quarts of water locked into each 32 Square Feet of coating (4-ft x 8-ft) Allows for faster, more cost-effective compliance with Fire Codes, even In Seismic Zones Purpose: Performed to classify upholstery fabrics used within the state of California. In the flame-spread rating test, a score of 0 to 25 constitutes a Class 1 rating. Class B has a flame spread of 25-75 and smoke development of less than 450. The California State Fire Marshall has listed the following Mataverde premium hardwood decking species as Class A flame spread rated and compliant with WUI requirements: Mataverde Premium Ipe Decking in nominal sizes from 1x4 and larger; including 1x4 T&G, 1x4, 5/4x4, 5/4x4 pre-grooved, 1x6, 5/4x6, 5/4x6 pre-grooved, 2x4, 2x6 Ipe and larger sizes EPS fire properties rated as CLASS A or CLASS 1 as its fire properties complies with in the specified range of CLASS A or 1. What Is WUI Compliance? A standard fire test is used to determine the fire rating of a roof covering. safety ratings. . All tested Western species fall into Class B or Class C classifications, as shown in Table A. Red oak has a rating of 100 and anything considered Class A fire-resistant needs a rating of 0-25. When taking on a construction project it's important to be aware of the flame spread rating (FSR) assigned to construction materials by the NFPA. The results of the flame spread test results in a numeric rating. Class D and E materials are not considered effective against any fire exposure. Western species tested for flame-spread have earned ratings favorable for applications requir-ing low flame-spread ratings. What is a Class B or Class 2 fire rating? Messina points out that the ASTM 84 test standard does not contain any pass/fail criteria. These materials are effective against light fire exposure. not certified for a specific flame spread rating. Cement board is burned and represents a Flame Spread Index of 0 and a Smoke Density Index of 0. This Code groups the following classes in accordance with their flame-spread and smoke development: Class A - Flame-spread 0-25, smoke developed 0-450. For all interior finishes, an FSI of less than 25 results in a Class A (Class I) classification or rating only provided that the SDI is less than 450. Class A is the strictest and includes any material classed at a flame-spread rating of less than 25 with a smoke-developed rating below 450. The Class A or Class I rating indicates superior fire protection. Western species tested for flame-spread have earned ratings favorable for applications requir-ing low flame-spread ratings. A Class 1, or Class A, fire rating means that the building material is highly resistant to fire and does not spread flames quickly. From these numbers a Flame Spread Index and Smoke Development Index is calculated with Class 1 being the best. The results of the flame spread test results in a numeric rating. Flame spread is a measure of a material's relative burning behavior. Class "A" Fire Rated. The flame spread rating of Class B would fall between 26 and 75. Class C fire retardants have a flame spread rating of between 76 and 200. Class A fire retardants have a flame spread rating of between zero and 25. Panel thicknesses ranging from 1/4" -1-1/2". But a one-hour rated wall generally is required to comply with the E84 Class A rating requirements as well. spread and smoke-developed indexes. E-84 test apparatus has changed little over this period. In the flame-spread rating test, a score of 0 to 25 constitutes a Class 1 rating. Class A fire ratings indicate a flame spread rating somewhere between zero and 25. FLAME SPREAD INDEX ASTM E84/UL723 classifies products by the flame spread index. These changes in flame spread indices are not sufficient to change the flame spread class for the wood products described in this report. Independent third party test reports available upon request. Class A - flame spread rating 0 - 25, excellent fire resistance; Class B - flame spread rating 26 - 75, moderate fire resistance; Class C - flame spread rating 76 - 200, light fire . Flame spread ratings (FSR's) are expressed as a number on a continuous scale where inorganic reinforced cement board is 0 and red oak is 100. Untreated2 particleboard and MDF have been tested for flame spread by a number of different manufacturers and the results met the Class Ill or C rating. Flame Spread Index This is determined by the distance that a flame travels along a test substrate in a limited time, compared to inorganic reinforced cement board, which is rated 0, and select grade red oak flooring, which is assigned an arbitrary rating of 100. The fire rating system for insulation is basically how long the material can withstand a standard fire resistance test. Red oak represents a Flame Spread Index of 100 and a Smoke Density Index of 100. The product must first meet the fire propagation requirements as outlined in BS 476-6:1989+A1:2009. Numeric values for Class B are between 25 and 75. Depending on test results, materials can have classifications of Class A, B, or C according to NFPA , ANSI/NFPA No. Class A fire retardants have a flame spread rating of between zero and 25. Class B Fire Rated Plywood. Gas flames are then applied to the end of the material to test the FSR (flame spread rate). RealWall™ and LiteBarrier™ containment systems have an ASTM E-84 Class A rating, meaning they have the lowest fire spread rate and minimal smoke production. What is a Class A fire rating? Marlite FRP Panels are manufactured using a homogenous mixture of calcium carbonate, fiberglass and resin. If the numeric value is less than 25, then a Class A flame spread index is assigned. Homasote makes structural building boards designed for use in residential and commercial buildings that require a Class A (25 flame spread) rating. All of Ceilume's ceiling tiles and panels in all colors and finishes are UL 94 V-0 for flammability. OVERVIEW of UL 94 Flame Classifications: UL 94, the Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing There are two types of pre-selection test programs conducted on plastic materials to measure flammability characteristics. Class A Flame Spread Rating. Class A or I: Flame spread Index 25 or less Class B or II: Flame spread Index 26 to 75 Class C or III: Flame spread Index 76 to 200 The tendency is to assume that Class A roof systems have a Class A flame spread, and so on, but there is no correlation. They do not preclude a material being . Materials consisting of brick stone, asbestos-cement board, and rockwool often achieve a class A rating. Class C: Flame Spread 76-200; smoke-developed 0-450 Class A,B, and C correspond to type I, II, and III respectively in other codes such as SBCCI, BOCA, ICBO. Non-Combustible, fiberglass-reinforced Magnesium Oxide coating over LP OSB. A product must be also be classified as a Class 1 building material for BS 476 - 7:1997. However, when we tested that same material under the S102.2 standard, the impact of placing the material on the floor, without the need for supports, had such a radical impact on the flame spread that the result was a rating equivalent to Class C in ASTM E84. As mentioned above, our RealWall, LiteBarrier, and FireblockWall containment systems, including the modular ceilings, have a Class A rating per ASTM E84, meaning they have the lowest fire spread rate and minimal smoke production. relative to red oak (which has an arbitrary rating of 100) and reinforced cement board (which has a rating of 0). Flame Spread Rating Index = A numerical reference that measures how fast and far a flame spreads during a 10-minute test. The Department of Housing and Urban Development (HUD) in their Manufactured Home Construction and Safety Standards (Section 3280.203) Click to see full answer. Based on the FSI and SDI a class rating is assigned to the material. A Class II rating is given if the spread of flame is no greater than 215mm in the first 1½ minutes and on overall spread of no more than 455mm. Class B includes materials with flame-spread ratings between 25 and 75, and smoke test ratings below 450. CAL/TB 117 - California Technical Bulletin. Class A Rating - Guardian Fire Testing Laboratories Certified. Meets or exceeds ANSI A208.2 Grade 130. With the game-changing introduction of FireblockWall™ — the first and only reusable one-hour fire-rated modular temporary . Class B Interior Finish: Flame Spread 26 - 75. Test specimen preparation and mounting shall be in accordance with ASTM E2404. Information about a wood's flame spread number and smoked developed number is listed clearly on its . Numeric values for Class B are between 25 and 75. All tested Western species fall into Class B or Class C classifications, as shown in Table A. i. The scale is divided into classes. The first determines the material's tendency either to extinguish or to spread the flame once the specimen has been ignited. Class C includes flame spreads from 76 to 200, and still limits smoke ratings to below 450. 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