Alitherm Heritage | Steel Replacement
Alitherm Heritage is a range of Aluminium Windows and Doors design specifically for heritage applications such as conservation areas, listed building renovations and large scale replica-refurbishment projects where planning constraints are to be considered.
The window is designed to be built as a series of horizontal modules which can be stacked using horizontal couplers to form a multi-part window featuring a specially design drip bar between modules.
Alitherm profiles utilise Smart’s innovative polyamide thermal break technology which creates a barrier between the cold air outside and the warm air inside. This technology significantly reduces thermal transmittance and enhances the overall U Value of a product and is designed to meet the exacting requirements of Document L 2010.
Alitherm products are available in a choice of standard or non-standard colours, including metallic, dual colour, Smart Architectural Aluminium Sensations textured, and Alchemy anodised effect finishes.
- Fixed windows
- Single or double sash, side hung open out casements
- Top hung open out casements
- Pivot windows
- Polyamide thermal break provides enhanced thermal performance
- Designed as a direct replacement for steel windows
WER Rating B U Value 1.5W/m²K (using 1.0W/m²K glass unit) Air Class 4, 600Pa Water Class 9A, 600Pa Wind Class AE, 2400Pa Document L Compliant Yes Kitemark Yes BS 6375-1:2009 Yes BS 4873 Yes PAS 24:2012 Yes
Glazing (mm) 24mm, 28mm, 32mm & 36mm double or triple glazed units Frame Depth (mm) 47mm Typical Sightlines (mm) 59mm
Side Hung Max Width (mm) 700mm Side Hung Max Height (mm) 1400mm Side Hung Max Weight (kg) 40kg
Top Hung Max Width (mm) 1400mm Top Hung Max Height (mm) 1300mm Top Hung Max Weight (kg) 35kg
Tilt Turn Max Width (mm) 1200mm Tilt Turn Min Width (mm) 402mm Tilt Turn Max Height (mm) 1600mm (at 900mm wide) Tilt Turn Min Height (mm) 500mm Tilt Turn Max Weight (kg) 90kg
Single Door Leaf Min Width (mm) 600mm Single Door Leaf Max Width (mm) 900mm Single Door Leaf Max Height (mm) 2100mm Door Sash Max Weight 60kg