RPS RIB PROFILE
 |
| MATERIAL |
WT/SQ PLAIN |
RECOMMENDED ROOF LEAD SPAN TABLES
IN POUNDS PER SQ. FT. / 3 SPAN |
FINISH |
| 4'-0" |
4'-6" |
5'-0" |
5'-6" |
6'-0" |
6'-6" |
7'-0" |
7'-6" |
8'-0" |
8'-6" |
9'-0" |
| ALUMINUM |
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SMOOTH
MILL FINISH
STUCCO EMBOSSED PAINTED |
| 0.032 |
51.5 lbs |
96 |
96 |
79 |
65 |
55 |
47 |
40 |
35 |
31 |
27 |
24 |
| 0.040 |
64.4 lbs |
142 |
142 |
117 |
97 |
82 |
69 |
60 |
52 |
46 |
41 |
36 |
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| GALVANIZED STEEL |
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GALV.
BRIGHT
SPANGLE
SILICONE
POLYESTER
COATED
KYNAR |
| 24 guage |
132.0 lbs |
125 |
125 |
103 |
85 |
71 |
61 |
52 |
46 |
40 |
35 |
32 |
| 22 guage |
160.5 lbs |
157 |
157 |
129 |
106 |
89 |
76 |
65 |
57 |
50 |
44 |
39 |
| 20 guage |
189.1 lbs |
187 |
187 |
154 |
128 |
107 |
91 |
79 |
68 |
60 |
53 |
47 |
| 18 guage |
246.1 lbs |
240 |
240 |
199 |
164 |
138 |
118 |
101 |
88 |
77 |
69 |
61 |
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| ALUMINIZED STEEL |
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UNIFORM
METALLIC
MATTE GRAY |
| 24 guage |
123.7 lbs |
108 |
108 |
90 |
74 |
62 |
53 |
46 |
40 |
35 |
32 |
28 |
| 22 guage |
152.3 lbs |
136 |
136 |
113 |
93 |
78 |
67 |
57 |
50 |
44 |
39 |
34 |
| 20 guage |
180.8 lbs |
163 |
163 |
135 |
112 |
94 |
80 |
69 |
60 |
53 |
46 |
41 |
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| 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. |
