A parallel opening window said to “optimise natural ventilation without compromising security” has been launched by Kawneer.
Based on its established AA 601TE window system, and independently security tested to BS 7950, the parallel opening design features the “proven thermal performance” of the standard AA 601TE casement window, achieving U-values of 1.5 W/m2K (for a CEN-sized window with warm edge spacer), while offering “exceptional levels of natural ventilation and air exchange”.