Kawneer, architectural aluminium systems supplier, has launched a folding/sliding door which it says delivers exceptional levels of thermal and weathering performance at a considerably modest price.<br> <br> The AA3720 uses advanced thermal break technology to deliver the enhanced thermal performance required to meet the stringent requirements of Approved Document L, Kawneer explains. Integrated polyamide thermal breaks allow for single and dual colour options while the use of extruded gasket profiles and a drain and ventilate strategy enable the system to achieve its weathering performance. <br> <br> Kawneer says that its product development team focused on market demands to produce a door offering aesthetic appeal, especially slim sightlines (by use of offset rollers), simplified fabrication and patented features including a concealed door retainer system, and market leading appeal and performance.<br> <br> <a href="http://www.kawneer.co.uk">www.kawneer.co.uk</a>