FLAME SPREAD RATING
\flˈe͡ɪm spɹˈɛd ɹˈe͡ɪtɪŋ], \flˈeɪm spɹˈɛd ɹˈeɪtɪŋ], \f_l_ˈeɪ_m s_p_ɹ_ˈɛ_d ɹ_ˈeɪ_t_ɪ_ŋ]\
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A measure of how far flames spread and how fast. The rating can affect how you build a house. It is based on a scale using asbestos cement board with a 0 value and red oak with a 100 value. The US allows a rate of 25 for partitions.
By Henry Campbell Black
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.
Nearby Words
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