Prevent Wind Uplift on Roof Terraces

The Raaft® terrace system mitigates localised weight loading by using a framework of loadbearing joists and support pedestals.

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Our modular extruded aluminium system uses interlocking joists and bracing struts to create a strong yet lightweight platform.

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Height-adjustable pedestals support, stabilise and level the platform to ensure the weight is evenly distributed for maximum support.

• Prevent waterlogging - Rainwater retention in planter soil will considerably add to the overall weight of the system. Placed under planters, Raaft® floor structure panels are perforated to allow easy drainage that prevents waterlogging.
• Lightweight materials - The choice of decking material can also significantly change the weight loading of your roof terrace. Raaft® porcelain decking and tiles compare favourably with the durability of wood and composite decking and the weight of natural stone and concrete products.
• Structural assistance - With data provided by your project’s assigned structural engineer, we can help you calculate safe weight loading and distribution across your terrace.

As terraces need to be designed with access to the roof below for inspection, maintenance, servicing and repair, it is not possible to permanently fix decking or tiles into place with adhesives or mastic, and fixings such as bolts and screws are unsightly.

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At Raaft®, we have solved this problem by cutting discreet grooves into the edges of our porcelain decking and porcelain tiles. Our design-protected stainless steel and Nylon 12 RP anti-uplift clips clip into this groove to unobtrusively hold the decking or tiles into position on our terrace system with little to no visibility.

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When access is required to the space below the terrace, the clips can be easily unfastened to allow removal of the decking or tile, but they are sufficient to hold the terrace intact when subjected to typical UK windspeeds.