IDEAL 4000®
70 mm construction depth
With millions of units already installed, this system impresses with incredible, tried-and-tested stability and a wide range of designs.
Technical Specifications
Construction / installation depth: 70 mm
Number of chambers: 5
Uf (frame thermal transmittance): 1.3 W/m²K
Uw (window thermal transmittance) with standard triple glazing (Ug = 0.6, Ψ = 0.040): 0.99 W/m²K
Best possible Uw (with high-performance glazing, Ug = 0.4, Ψ = 0.030): 0.76 W/m²K
Glazing (glass unit) thickness: up to 41 mm
Sound insulation: up to 45 dB
Security / burglary protection: up to RC2 (with optional reinforcement / bonding)
Profile sealing / gaskets: 2 sealing levels (external) with block sealing system
Reinforcement: Steel reinforcement in frame & sash for stability
