Airtight Security Lift and Slide Door
Finding a lift and slide door that offers high security and exceptional airtightness has always been a challenge in the UK. Designers working on low-energy projects often had to compromise. 21 Degrees have developed a product to solve this problem.
Lift and slide door
Our new triple-glazed timber Lift & Slide door provides both security and airtightness. It meets the police-approved Secured by Design and Part Q security standards. It also achieves Class 4 airtightness, the highest possible rating.
Chris Herring
This gives you much greater flexibility in your designs. You no longer need to choose between security and energy performance. The door uses high-quality, FSC-certified timber and offers very low U-values to reduce heat loss. This keeps your home comfortable and your energy bills low.
We are also launching a Passivhaus-certified version of the door later this year. This will provide an excellent option for projects requiring the highest level of energy efficiency.
Key features
- Secured by Design & Part Q compliant option
- Class 4 Airtightness to BS EN 12207
- Whole door UD values as low as 0.84 W/m2K
- FSC® certified timber in redwood & oak
- FSC® certified Accoya timber drip rail for durability
If you need a high-performance door for your project, our team can help. Contact us to discuss your requirements or to request a quote.
