Preventa® rigid aluminium extruded joist rails for use as a support structure system to decking and paving. Raaft joists are designed to be used on roof terraces, balconies and other external podium construction areas.

Suitability

  • Raaft® Terrace system

  • Decking

  • Natural / porcelain tiles

  • Floor structure panels

Benefits

  • Excellent load-bearing capability 

  • Height and slope-adjustable for almost any environment

  • BRooft(t4) rated for roof structures

  • Modular and fully customisable - can be configured to meet requirements

  • No fixtures required - each component comes together seamlessly for quick installation

  • Strong but lightweight

  • Made from a corrosion-resistant aluminium

  • Robust structure - strong enough for terraces

  • Manufactured using durable, sustainable materials with no compromise on quality

Product range

Preventa® 30mm joist (code 301015)

  • Dimensions: 30 (h) x 72 (w) x 2.4m (l)

  • Max span: 500mm*

  • Weight/length: 3kg

  • Max cantilever: 100mm

  • Max loading: 250kg**

  • Material: 6063 T6 aluminium

  • Finish: mill

* Between supports
** Point load based on Finite Element Analysis (FEA) with a x 1.5 factor of safety