Product Description

The cold roll-forming process used in producing the AP Rib profile metal roofing sheet ensures a high degree of consistency and dimensional accuracy in the end product. The AP Rib profile has an excellent strength weight ratio, durable and cost effective.

Applications

This product is widely used for commercial and industrial applications like factories, shop lots and apartments. Besides being used as metal roofs, AP Rib is equally suitable for use as cladding and fascia or even hoarding.

Materials Available

• Clean Colorbond^® Steel
• Zincalume^® steel
• PrimaMaju^TM steel
• Pre-painted Galvanised Iron (PPGI)

SECTIONAL PROFILE

Dimensions                                                      Tolerance

Rib height               : 25mm                                Thickness for material  : + 0.03mm

Effective cover        : 762mm                              Effective width            : + 3mm

Minimum roof pitch : 3°                                      Finishing length            : + 5mm         

TECHNICAL DATA

AVAILABLE THICKNESS

Base Metal Thickness (mm)	Total Coated Thickness (mm)	Weight (kg/m2)	Steel Grade	Min. Yield Strength (MPa)
0.35	0.40	3.46	AS1397	G550
0.42	0.48	4.20	AS1397	G550
0.48	0.55	4.76	AS1397	G550

other thicknesses are subject upon stock availability and time delivery

RECOMMENED MAXIMUM ROOF LENGTH (M)

Slope in Degree Rainfall (mm/h)	3°	5°	7°
150	50	60	80
200	39	50	60
250	30	40	48
300	26	30	40

RECOMMENDED MAXIMUM SPACING OF SUPPORT

 

Base Metal Thickness (mm)	Total Coated Thickness (mm)	ROOFS		WALLS
		End Span (mm)	Internal Span (mm)	End Span (mm)	Internal Span (mm)
0.35	0.40	900	1000	1200	1500
0.42	0.48	1200	1500	1700	2000
0.48	0.55	1300	1700	2000	2300

INSTALLATION METHOD

It is strongly recommended that sheets are laid with the side laps facing away from the direction of the prevailing wind. Where possible, the roof sheets should be fixed with the side laps facing away from the normal line of sight.

SIDE LAP AND FLASING Side lap fasteners are required at mid spans for purlin spacings over 1,000mm and for girt spacings over 1,200mm. For all side lap and flashing fastening, use no. 10 x 25mm self drilling Hexagon Head Screw with pre-assembled neoprene bonded steel washer.

END LAPS AP RIB is available in continuous length limited only by the maximum transportable length of 20m. For longer length, end lap is necessary. Minimum end lap should be 200mm and for roof pitches below 8º, the lap should be treated with a recommended sealant.

 FIXING

                                                     CREST FIXING OF AP RIB

          Crest fixing to steel                                     Crest fixing to timber