Comfort XL Window Characteristic Features:

  • embedding depth – 82.5 mm
  • 5-chamber system
  • window heat-transfer coefficient Uwfrom 0.76 W/m2K
  • modern design; available in versions with simple or rounded casement
  • advanced-technology solutions; additional antiburglar barrier
  • possible application of STV+IKD* technology
  • available in a variety of colours, also in acrylcolor technology

•    STV is an innovative method of the glazing unit durable bonding to casement with static-thermal tape which considerably improves thermal performance, statics and antiburglar rating of the window.


•    IKD is a solution where the profile main chamber is fully filled with the structural thermal foam which ensures unique thermal insulating and soundproofing performance of the window.

comfortXL prostecomfortXL okragle

simple casement

rounded casement

Bertrand ®