Series 20 Slimline Vertical Sliding Secondary Glazing  

 

A slim vertical sliding system suitable for treating traditional sash windows in heritage properties. 

  • Frame width 1400mm
  • Frame height 3000mm
  • U-value 2.62W/m2K (4-6.8mm standard glass with timber primary window)
  • dB reduction 43dB (Rw) (4-8.4mm glass with 100mm cavity)
  • Security accreditation ISO 16933 EXV 45 (blast)