Alitherm 400

Combining outstanding value and quality, with class-leading performance and security, Alitherm 400 delivers a range of stylish, energy-efficient window and single and double door options.

• Fully compliant with Part L of the Building Regulations, this versatile system is perfect for a wide range of both new build and refurbishment projects, including, schools, colleges, hospitals, offices and public sector housing – as well as individual homes. In fact, the system’s supreme flexibility makes it the ideal solution for almost any project.
• Both window and door systems provide excellent weather and thermal performance and are available in a huge range of colours. Combining elegant aesthetics and outstanding security performance (the system is approved to PAS:24 2022), Alitherm 400 is the ultimate window and door system for architects, developers, fabricators and installers.
• Available in fixed, side hung, top hung, tilt & turn and flush casement options, Alitherm 400 windows deliver excellent thermal and weather performance, as well as the security assurance provided by PAS24 approval.
• (For sizes outside these parameters, contact the Smart Technical Support team) Typical Values different glass, profiles and door configurations will vary U Value and Window Energy Rating 1. U Value based on opener next to fixed 1230 x 1480 using glass Centre Pane 1.0 2. WER based on opener next to fixed 1230 x 1480 using glass Centre Pane 1.2 and g value 0.74