Stramit Minirib®

Specifications

Features

  • 900mm Cover – for maximum use of material whenever applications permit.
  • Easy Fixing – conventional through fixed screws maximise performance and installation.
  • Low Rib Height – to allow flexibility in the sheet for architectural treatments.
  • Versatility – suitable for a variety of applications in both architectural and industrial markets.
  • Hi-tensile Steel – for greater damage resistance and performance.

Applications

Stramit Minirib® panelling has a near flat profile for discreet panel areas. Widely used as a transport siding, portable buildings and internal shed wall lining Stramit Minirib®panelling also finds use for narrow soffits.

Materials

Stramit Minirib® panelling is a cold roll formed steel product in G550 base material (550 MPa minimum yield stress), with a Zincalume® (AZ150) coating in accordance with A1397, and Colorbond®is available in a range of colours. 

STRAMIT MINIRIB® PANELLING - SHEETING MASS (kg/m2 of roof area)
thickness BMTZincalumeColorbond
0.423.623.68

Design

Pressures

STRAMIT MINIRIB® PANELLING – SERVICEABILITY LIMIT STATE CAPACITY
span
type
pressure (kPa) at the spans (mm) shown
600900120015001800
internal3.412.391.841.491.25
equal3.412.391.841.491.25
double3.412.391.841.491.25
STRAMIT MINIRIB® PANELLING – STRENGTH LIMIT STATE CAPACITY (Non-cyclonic)
span
type
pressure (kPa) at the spans (mm) shown
600900120015001800
internal5.792.671.561.040.74
equal5.792.671.561.040.74
double5.792.671.561.040.74

Spring Curving

Stramit Minirib®panelling is able to be spring curved to a radius as tight as 2000mm for additional architectural versatility. However, at radii of 6000mm or less the support spacing must be reduced to no greater than 600mm.

Installation

Fasteners

All fasteners should conform with AS3566 – Class 3 and be compatible with the cladding material used.
 
For steel
– No. 12 x 20mm hex head self-drilling, self-tapping screws. 

In internal applications, 3.2mm aluminium pop rivets. 

For timber
– No. 12 x 25mm hex head self-drilling type 17 screws. Add 10mm to screw length for softwood applications. 

Side laps
– No. 8 x 12mm ‘S’ point screws or 3.2mm sealed aluminium pop rivets.

Fastener Positions

For external applications, side lap fasteners are required at 200-300mm centres. At all supports, 4 equally spaced fasteners are required across the sheet including one fastener through or adjacent to the overlap. For internal applications Stramit Minirib® panelling with spaces of 1000mm or more requires the side lap to be stitched at mid-span. 

For further installation information, refer to page 11 of the Stramit®Wall Sheeting & Cladding Product Technical Manual.

Impact

For wall areas likely to be subject to human impact, sheeting spans should be reduced. Impact loads will vary considerably and these are not prescribed in Australian Standards. A maximum span of 1000mm is suggested for such areas, but this should be adjusted dependent upon the exposure and importance of the application.

Availability

Product Availability 

NSWACT TAS VIC SA WA QLD NT
YYNSSYYY

Y - Yes     N - No     S - Subject to project size

Alternatives