Reimagine your space with Fenster Solutions’ Ideal Range. True to its name, this series is the perfect choice for all casement windows and doors requirements.
IDEAL® 4000 – The Perfect Blend of Strength & Aesthetics
70 mm construction depth
Highly energy efficient
Uf = 1.3 W/m²K
Uw = 0.99 W/m²K (standard option)
Uw = 0.76 W/m²K (best possible option)
Acoustic insulation up to 45 dB (Sound insulation class IV)
Security up to RC2 (European Security Standard for windows and doors) burglary protection
