IBR is an abbreviation for Inverted Box Rib, an angular trapezoidal fluted profile sheet with a bold appearance which makes it both attractive and practical. Tufdek has an effective covering width of 686 mm designed for use as side cladding or roofing material in commercial, industrial and residential buildings. The deep broad flute design offers excellent drainage characteristics combined with optimum weight versus load/span capabilities. Tufdek can be factory cranked, curved and bullnosed to various radii depending on customer's requirements.
Product Description and Features:
Safintra 0,47mm thick, AZ 150 ZincAl® Tufdek IBR profiled roof sheeting, fixed to intermediate steel purlins at 1900mm centres and to ridge and eaves purlins at 1600mm centres, with 12x65mm metalfix Fixtite® or Safintra approved hex head self-drilling fasteners at every second crest, at intermediate purlins and at every crest at eave purlins. Side laps to be stitched at 500mm centres between purlins with a #14 x 22mm metal-fix stitching fastener, in accordance with manufacturers recommendations.
The sheeting shall be Tufdek IBR type profile as manufactured by Safintra. The profile shall be roll-formed with 5 trapezoidal ribs at 171mm, centres with a effective cover width of 686mm. The rib height shall be 36,5mm and shall be fixed in accordance with the manufacturer’s recommendations.
Purlin Spacing's are dependent on both downward loading and negative suction loading caused by wind. An engineer should be consulted to calculate your load (kN/m2) for your particular application.
Lengths and Roof Pitch:
When using Tufdek IBR sheeting the recommended minimum pitch for roof slopes in excess of 15m is 7.5° and for slopes less than 15m is 5°. Tufdek IBR sheeting can be ordered in any length, subject to transport limitations, up to 13,2m. Longer lengths require special transport arrangements.
Tufdek IBR is pierce fixed to timber or steel supports. This means that fastener screws pass through the sheeting. Always drive the fasteners perpendicular to the sheeting, and in the center of the rib. It is recommended that side laps be stitched at 500mm centers. Its further recommended that every rib is fixed at the eaves, ridges and the apex of the roof. Side laps to be sealed using a suitable butyl product or neutral cure silicone.
Refer to the Fixtite Fastener section for fixing guidelines.
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