Taking inspiration from traditional steel windows, Alitherm Heritage features signature slim sightlines and attractive aesthetic contours coupled with polyamide thermal break technology giving Alitherm Heritage enhanced thermal performance and narrow sightlines.

Thermally broken, aluminium, side-hung, top-hung, fixed or tilt and turn, including a heavy duty vent option casement window system incorporating innovative polyamide thermal break technology, which creates a barrier between the cold air outside and warm air inside. This technology significantly reduces thermal transmittance and enhances the overall U-value of the product.

Alitherm Heritage is available in a choice of standard and non-standard colours, including metallic, dual colour, Smart’s Sensations textured, and Alchemy anodized effect finishes.

The Alitherm Heritage 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 designed drip bar between modules.

Features and benefits:

An enhanced system designed to comply with the revisions to the Building Regulations (E&W), Document L compliant.
BRE Green Guide A+ Rating.
System can achieve Window Energy B Rating.
Marine grade 1.4401 (316) marine grade stainless steel hardware option, along with Heritage and Art Deco.
Polyamide thermal break provides enhanced thermal performance.
Designed as a direct replacement for steel windows.
British Standard Kitemarked system – KM 81580 and KM 81543.

Kitemark: Certificate: KM 81543