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Thermally broken, aluminium, side-hung, top-hung, fixed or tilt and turn casement window system for heritage applications.
It is the ideal solution for heritage applications such as listed building renovations and large-scale replica-refurbishment projects where planning constraints are to be considered.
Thermally broken, aluminium, side-hung, top-hung, fixed or tilt and 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:
Material | Aluminium |
Uniclass | |
CAWS | L10/25 Aluminium windows L10/330 Aluminium windows |
Product range |
Standard | Manufacturer guidanceConsult manufacturer and insert requirement. |
Dimensions and configurations | 300–700 x 1400 mm (maximum).Guidance for specification option: Side-hung: Insert requirement. 700 x 275–1400 mm (maximum).Guidance for specification option: Top-hung: Insert requirement. Manufacturer guidanceW x H. |
Product performance | |
Fire performance | |
Fire resistance | Manufacturer standard. |
Weather performance | |
UK exposure category | Manufacturer standard. |
Air permeability | To Class 4, 600 Pa. |
Watertightness | To Class 9A, 600 Pa. |
Resistance to wind load | To Class AE, 2400 Pa. |
Durability | |
Operation and strength characteristics | Manufacturer standard. |
Safety | |
Anti-ligature standard | Manufacturer guidanceConsult manufacturer and insert requirement. |
Security level | To PAS 24: 2012. |
Environmental | |
Background ventilation | Manufacturer standard. |
Acoustic performance rating | Manufacturer standard. |
Thermal | |
Whole window U-value | Maximum: 1.5 W/m²K, 1.0 W/m²K (using sealed unit). |
British Fenestration Rating Council Window Energy Rating | Can achieve Window Energy A Rating. |
Frame | |
Profile | Chamfered externally and flat internally (not flush). |
Finish as delivered | |
Coating | Marine quality powder coat. |
Colour | Guidance for specification option: Insert single or dual colour requirement from metallic, dual colour, Smart’s Sensations textured, and Alchemy anodized effect finishes. |
Film thickness (minimum) | Manufacturer standard. |
Ventilator | Manufacturer standard. |
Glazing or infill | |
Standard | Manufacturer guidanceConsult manufacturer and insert requirement. |
Requirements | Guidance for specification option: Insert requirement, available 24–36 mm as double or triple glazed units. |
Hardware | Manufacturer standard.Art Deco.Heritage.Marine grade 1.4401 (316) stainless steel. |
Operation | |
Type | Manual. |
Fixing features | Manufacturer standard. |
FrameDepth | 47 mm (59 mm sight line). |
Maximum weight | Maximum vent weight: 40 kg. |
Perimeter edge/ thermal break | Extended polyamide thermal break. |
Configuration | Fixed. Side-hung. Tilt and turn. Top-hung. |
Platform | Compatible | Version |
---|---|---|
- | 1 |