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REHAU-Polytec 50
REHAU-Polytec 50 curtain walling system combined the economics of polymer materials with the advantages of conventional transom/mullion construction, with the same profile acting as both transom and mullion helping to eliminate wastage.REHAU-Polytec 50 is available in white and a vast range of RAL colours.
REHAU Polytec 50 Curtain Walling System 
The frame achieves a coefficient of heat transmission of
U-value = 1.3 W/(m2K).
Mechanics
REHAU PVC-u is classified as high impact resistant when tested in accordance with BS 7413. It maintains it excellent impact resistance between -40 degrees and +40 degrees.
Durability
REHAU PVC-u's special formulation for external use gives excellent resistance to weathering and ageing. Many installations on the continents have been in use for over 25 years without deterioration.
Fire
REHAU PVC-u is difficult to ignite and will self-extinguish when the source of heat is removed.
Chemical
REHAU PVC-u is resitant to atmoshperic pollution and a range of acids and alkalis. The steel profiles, including the relevant fixings, should be galvanised in accordance to DIN 55928.
The latest version of the system – REHAU Polytec 50 S has just been tested in accordance to the European product standard for curtain walling EN13830 confirming its exceptional performance.
REHAU Polytec 50 S comprises a new glass support which speeds up the fabrication process and a PE foam isolator to further enhance its thermal performance – it has successfully outperformed EN12152 and EN12153 with Air Permeability of less than 1.5m³/m²/h at a test pressure of 750 Pa.
In addition, it provides a water tightness of up to 1950 Pa for exposed locations as tested according to EN12154 and EN12155 thanks to its mullion drained system and fully pressure equalised and ventilated construction. This is proving particularly useful in exposed locations such as in dock and coastal areas where a growing number of interesting conversions are taking place.
Another important reason for the increasing specification of the REHAU Polytec 50 composite curtain walling system is the strength of the box steel sections used as reinforcement compared with the aluminium alternative. The elasticity modulus of steel is three times higher than aluminium (E steel = 210,000 N/mm², E aluminium = 70,000 N/mm²) which means that larger spans can be achieved without the need for either costly secondary support structures or reduced profile depth to enlarge the usable floor space.
REHAU can advise on the correct specification of box steel sections for individual projects and on both weather and thermal performance requirements.
www.rehau.co.uk: Building Solutions > Windows, Doors & Curtain Walling Systems > Curtain Walling System > REHAU-Polytec 50
© REHAU Ltd. All Rights reserved. 2009
© REHAU Ltd. All Rights reserved. 2009