Published: 08/15/2013 02:08:00 AM
We're proud to be representing some of the highest quality polystyrene crown moldings that have officially received an ASTM E-84 Class "A" fire rating!
The ASTM E-84 test measures the surface burning characteristics of building materials, including flame spread and smoke index. Building code officials recognize the ASTM E-84 rating system as the standard method for testing and a Class “A” is the highest rating a product can score.
The test was done on a 5-inch polystyrene foam crown molding and the following results were obtained:
Flame Spread Index | Smoke Developed Index |
---|---|
5 | 85 |
With classification categorized as:
Class | Flame Spread Index | Smoke Developed Index |
---|---|---|
A | 0 - 25 | 0 - 450 |
B | 26 - 75 | 0 - 450 |
C | 76 - 200 | 0 - 450 |
*Class A, B, and C correspond to Type I, II, and III respectively in other codes |
With over 20 different crown molding profiles that are now Class "A" fire rated you are bound to find the perfect design and size to meet your project requirements. To make the process easier we have complied a list of polystyrene foam crown moldings that have the ASTM E-84 Class "A" fire rating:
Profile | Product | Height | Projection | Face | Length |
---|---|---|---|---|---|
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MC9801-4 | 3-1/2 in. | 2 in. | 4 in. | 8 ft. |
MC9801-6 | 4-1/2 in. | 2-1/2 in. | 5-1/8 in. | 8 ft. | |
MC9801-7 | 5-1/2 in. | 3 in. | 6-1/4 in. | 8 ft. | |
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MC9802-4 | 3-1/2 in. | 1-11/16 in. | 3-7/8 in. | 8 ft. |
MC9802-6 | 4-1/2 in. | 2-1/4 in. | 5 in. | 8 ft. | |
MC9802-7 | 5-1/2 in. | 2-11/16 in. | 6-1/8 in. | 8 ft. | |
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MC9803-4 | 3-1/2 in. | 1-7/8 in. | 3-15/16 in. | 8 ft. |
MC9803-6 | 4-1/2 in. | 2-1/4 in. | 5 in. | 8 ft. | |
MC9803-7 | 5-1/2 in. | 2-3/4 in. | 6-1/8 in. | 8 ft. | |
MC9813-6 | 4-1/2 in. | 2-1/4 in. | 5 in. | 8 ft. | |
MC9813-7 | 5-1/2 in. | 2-3/4 in. | 6-1/8 in. | 8 ft. | |
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MC9804-4 | 3-1/2 in. | 1-3/4 in. | 3-15/16 in. | 8 ft. |
MC9804-6 | 4-1/2 in. | 2-7/16 in. | 5-1/8 in. | 8 ft. | |
MC9804-7 | 5-1/2 in. | 2-15/16 in. | 6-1/4 in. | 8 ft. | |
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MC9805-4 | 3-1/2 in. | 1-3/4 in. | 3-15/16 in. | 8 ft. |
MC9805-6 | 4-1/2 in. | 2-3/8 in. | 5-1/16 in. | 8 ft. | |
MC9805-7 | 5-1/2 in. | 2-3/4 in. | 6-1/8 in. | 8 ft. | |
MC9815-6 | 4-1/2 in. | 2-3/8 in. | 5-1/16 in. | 8 ft. | |
MC9815-7 | 5-1/2 in. | 2-3/4 in. | 6-1/8 in. | 8 ft. | |
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MC9806-4 | 3-1/2 in. | 1-3/4 in. | 3-7/8 in. | 8 ft. |
MC9806-6 | 4-1/2 in. | 2-7/16 in. | 5-1/16 in. | 8 ft. | |
MC9806-7 | 5-1/2 in. | 3-1/16 in. | 6-1/4 in. | 8 ft. | |
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MC9820-9 | 8 in. | 2-3/8 in. | 8-5/16 in. | 8 ft. |
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MC9821-7 | 4-3/8 in. | 4-3/8 in. | 6-3/16 in. | 8 ft. |