Dualframe 75mm Si Tilt Turn window suite is the first in a new generation of window and façade products. Utilising advanced polyamide thermal break technology, Dualframe 75mm Si provides high thermal performance without the need to resort to complex and costly sealed unit specifications.

Drawing from the tried and tested design principles of Dualframe, the Si designation will be progressively rolled out across all of the main Dualframe window and façade configurations.