Features and Usage
Application
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.
Features
- Polyamide thermal break provides enhanced thermal performance
- Designed as a direct replacement for steel windows
- Will achieve U Values under 1.5w/m²K when used in conjunction with correct double glazed sealed unit
- Alitherm Heritage products achieve an Energy ‘B’ Rating
- Available in single or dual colour polyester powder coat as standard
Benefits and Options

Energy Rating (WER) B

Water Class 9A, 600PA

Air Class 4, 600PA

PAS: 24:2012

Document L Compliant

1.5W/M2K using correct sealed unit

Wind Class AE, 2400PA