Robertson Australia - Box Rib 5™

Box Rib 5™

Features

Most frequently specified profile. Good cover width and high spanning capacity. Ample drainage capacity when used as roofing. Strong aesthetic appeal. Good balance of economy and performance.

Numerous power stations throughout the Asia/ Pacific region have used Box Rib 5™ as wall and roof cladding.

Applications

May be specified as single skin, thermal or acoustically rated roof and/or wall cladding.

Used on structures for diverse fields including power generation, aviation, mining, motor industry and education.

Orientation

Can be installed as a vertical, horizontal or diagonal system to walls.

Roof Load Span Data

Allowable Safe Load Table (values in kPa)

Span mm	Single Span			Double span			Triple span
	Base steel thickness
	0.6	0.7	0.9	0.6	0.7	0.9	0.6	0.7	0.9
900	8.23*	10.35*	15.21*	8.23*	10.35*	15.21*	10.0*	12.3*	19.01*
1200	4.44*	5.47	7.80	4.63*	5.82*	8.56*	5.79*	7.27*	10.69*
1500	2.27*	2.80	3.99	2.96*	3.72*	5.48*	3.71*	4.65*	6.84*
1800	1.32*	1.62	2.31	2.06*	2.59*	3.80*	2.48	3.06	4.36
2100	n/r	1.02	1.46	1.51*	1.90*	2.79*	1.56	1.93	2.75
2400	n/r	n/r	0.98	1.16*	1.45*	2.14*	1.05	1.29	1.84
2700	n/r	n/r	n/r	n/r	1.15*	1.65	n/r	0.91	1.29
3000	n/r	n/r	n/r	n/r	n/r	1.20	n/r	n/r	0.94

Notes: Allowable loads limited by stress of 180 MPa, or deflection of L/180.
* Denotes where values determined by stress. n/r Not Recommended.

Table of Properties

Base steel thickness mm	Mass per unit length * kg/m	Mass per unit area * kg/m2	Stress coefficients			Deflection coefficients
Base steel thickness mm	Mass per unit length * kg/m	Mass per unit area * kg/m2	Single span	Double span	Triple span	Single span	Double span	Triple span
0.6	6.50	7.07	6.67	6.67	8.34	7.67	18.43	14.47
0.7	7.39	8.03	8.38	8.38	10.47	9.45	22.72	17.84
0.9	9.15	9.95	12.32	12.32	15.40	13.48	32.39	25.43

Notes: To obtain maximum allowable loads in kPa for spans not listed, divide coefficient of stress by the square of the span in metres. Divide coefficient of deflection by the cube of span in metres.
* Denotes mass of Hot Metal Versacor material. Other finishes marginally lower.

Inverted Box Rib 5™ Roof Cladding (IBR5)
920mm cover width roof cladding.
Profile depth 33mm.

Exposed Fastener: Box Rib 5 (IBR5) Roof

Fastening Details

(For non-cyclonic and non-typhoon areas)

Wall Load Span Data

Allowable Safe Load Table (values in kPa)

Span mm	Single Span			Double span			Triple span
	Base steel thickness
	0.6	0.7	0.9	0.6	0.7	0.9	0.6	0.7	0.9
900	10.99*	13.79*	20.28*	10.99*	13.79*	20.28*	13.73*	17.23*	25.36*
1200	6.18*	7.76*	11.41*	6.18*	7.76*	11.41*	7.72*	9.69*	14.26*
1500	3.41	4.20	5.99	3.96*	4.96*	7.30*	4.94*	6.20*	9.13*
1800	1.97	2.43	3.47	2.75*	3.45*	5.07*	3.43*	4.31*	6.34*
2100	1.24	1.53	2.18	2.02*	2.53*	3.73*	2.34	2.89	4.12
2400	0.83	1.03	1.46	1.55*	1.94*	2.85*	1.57	1.94	2.76
2700	0.58	0.72	1.03	1.22*	1.53*	2.25*	1.10	1.36	1.94
3000	0.43	0.53	0.75	0.99*	1.24*	1.80	0.80	0.99	1.41

Notes: Allowable loads limited by stress of 240 MPa, or deflection of L/120.
* Denotes where values determined by stress.

Table of Properties

Base steel thickness mm	Mass per unit length * kg/m	Mass per unit area * kg/m2	Stress coefficients			Deflection coefficients
Base steel thickness mm	Mass per unit length * kg/m	Mass per unit area * kg/m2	Single span	Double span	Triple span	Single span	Double span	Triple span
0.6	6.50	7.07	8.90	8.90	11.12	11.50	27.64	21.70
0.7	7.39	8.03	11.17	11.17	13.96	14.18	34.48	26.75
0.9	9.15	9.95	16.43	16.43	20.54	20.21	48.59	38.14

Box Rib 5™ Wall Cladding (BR5)
920mm cover width wall cladding.
Profile depth 33mm.

Exposed Fastener: Box Rib 5 (BR5) Wall

Fastening Details

(For non-cyclonic and non-typhoon areas)