Alitherm Heritage provides the ideal solution for heritage applications such as 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’s 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
|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|
|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|
|Single Door Max Width (mm)||900mm|
|Single Door Max Height (mm)||2100mm|
|Glazing (mm)||24mm, 28mm, 32mm & 36mm double or triple glazed units|
|Frame Depth (mm)||47mm|
|Typical Sightlines (mm)||59mm|