SEK RIB Profile - RPS Engineering

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SEK RIB PROFILE
MATERIAL	WT/SQ PLAIN	RECOMMENDED ROOF LEAD SPAN TABLES IN POUNDS PER SQ. FT. / 3 SPAN											FINISH
MATERIAL	WT/SQ PLAIN	4′-0″	4′-6″	5′-0″	5′-6″	6′-0″	6′-6″	7′-0″	7′-6″	8′-0″	8′-6″	9′-0″	FINISH
ALUMINUM													SMOOTH MILL FINISH STUCCO EMBOSSED PAINTED
0.032	54.5 lbs	70	55	45	37	31	26	20	17	15	13	12


GALVANIZED STEEL													GALV. BRIGHT SPANGLE SILICONE POLYESTER COATED KYNAR
26 guage	95.0 lbs	70	55	45	37	30	25	19	16	14	12	11
24 guage	120.0 lbs	90	70	58	47	40	34	25	21	19	16	15
22 guage	168.0 lbs	118	92	76	62	53	45	34	29	26	23	20
20 guage	200.0 lbs	137	107	88	72	61	51	40	35	30	27	24

ALUMINIZED STEEL													UNIFORM METALLIC MATTE GRAY
24 guage	112.5 lbs	79	62	51	42	35	30	22	19	16	14	13
22 guage	157.4 lbs	103	81	67	55	46	39	30	26	23	20	18
20 guage	187.4 lbs	120	94	77	63	53	45	35	30	26	23	21

NOTES	1. Allowable loads shown are based on stress governing per latest A.I.S.I specification. 2. Allowable loads shown may be increased by 1/3 for wind loading. 3. Applications of this product on roofs with a pitch of less than 12° are not recommended. 4. 24 GA Steel and 0.032″ Aluminum are not recommended for roofing applications.