Classic rib – Metal Sales Classic Rib Manual User Manual
Page 6
PCR-6
© Metal Sales Manufacturing Corporation/ Subject to change without notice/ Effective Date 9/11
800.406.7387 (Corporate Office) • www.metalsales.us.com
CLASSIC RIB
®
s
eCTion
P
roPerTies
and
g
eneral
i
nformaTion
36" Coverage
Anti-Siphon Groove
9"
3
/
4
"
3
/
8
"
3
1
/
8
"
2
3
/
4
"
5
/
8
"
C
1
3
/
4
"
ALLOWABLE UNIFORM LOADS PSF
(3 or More Equal Spans)
1.5' 2' 2.5' 3' 3.5' 4' 1.5' 2' 2.5' 3' 3.5' 4'
SECTION PROPERTIES
Bottom in Compression
Width
(in.)
Yield
KSI
36"
80
29
Ga.
Sxx
In
3
/ft
Ixx
In
4
/ft
Weight
PSF
0.62
Top in Compression
Sxx
In
3
/ft
Ixx
In
4
/ft
Inward
Load
Outward
Load
0.0100 0.0151 0.0053 0.0118
142 81 52 36 27 21 179 103 66 46 34 26
1. Theoretical section properties have been calculated per AISI 2001. “Specifications for the Design of Cold-formed Steel Structural
Members.” Ixx and Sxx are effective section properties for deflection and bending.
2. Allowable load is calculated in accordance with AISI 2001 specifications considering bending, shear, combined bending and sheer and
deflection. Allowable load considers the worst case of 3 and 4 equal span conditions. Allowable load does not address web crippling or
fasteners/support connection and panel weight is not considered.
3. Deflection consideration is limited by a maximum deflection ratio of L/180 of span.
4. Allowable loads do not include a 1/3 stress increase in uplift.
5. Diaphragm Capacity - 296 plf average Ultimate Shear Strength using the above fastening pattern on 2x supports located 2' on center per
ASTM E 455-04
26
36"
80
0.86 0.0123 0.0190 0.0080 0.0151
182 104 67 47 34 26 225 129 84 58 43 33
GENERAL INFORMATION
ATTACHMENT DETAIL
FASTENING PATTERN
The minimum recommended slope for Classic Rib
®
roof
panel is 3:12.
Classic Rib
®
is designed to be utilized over open structural
framing, or a solid substrate. To avoid panel distortion, use
a properly aligned and uniform substructure.
Classic Rib
®
panels are available in a
3
/
4
" rib height with a
coverage width of 36".
Minimum factory cut length is 5'-0". Maximum
recommended panel length is 45'-0". Longer panels require
additional consideration in packaging, shipping, and
erection. Please consult Metal Sales for recommendations.
The fastener selection guide should be consulted for
choosing the proper fastener for specific applications.
Quantity and type of fastener must meet necessary loading
and code
requirements.
NOTE: All panels are subject to surface distortion due to
improperly applied fasteners. Overdriven fasteners will
cause stress and induce oil canning across the face of the
panel at or near the point of attachment.
Finishes: Acrylic Coated Galvalume
®
or MS Colorfast45
®
Gauge: 26ga and 29ga standard
Anti-Siphon
Groove
Classic Rib
®
Panel
1
/
4
"-14 x
7
/
8
" Stitch Screw
(for roof only)
#9-15 Woodscrew
#9-15 Woodscrew
1
/
4
"-14 x
7
/
8
" Stitch Screw (for roof only)
Slope
Substructure
Coverage
Length
Fasteners
Availability
Field of Panel
#9-15 Woodscrew
1
/
4
"-14 x
7
/
8
" Stitch Screw (for roof only)
Ends of Panel