HF 520
Unique modern and flush design with the appearance of fixed glazing.
Thermal Insulation
Uw up to 0,71 (in W/m²K)
Sound reduction (in dB)
up to 35 - 47
Security
up to RC1, RC2
Locking
Fully concealed

Internorm redefines modern window architecture with the HF 520: The flush timber-aluminium designer window impresses with its innovative glass sash, not visible from the outside, giving the appearance of fixed glazing. The slim frame allows for an abundance of natural light. This window is fitted with concealed hardware as standard and is ideal for modern buildings and sophisticated architecture. Can be perfectly combined with the uPVC-aluminium designer window KF 520, offering the internal choice of timber in living areas and uPVC in wet and bathrooms, while maintaining a uniform and harmonious appearance externally.
I-tec Glazing
Internorm's I-tec Glazing permanently bonds the glass to the window sash around its entire perimeter, delivering exceptional structural stability, enhanced security against forced entry, improved thermal and acoustic insulation, increased durability, and a slimmer, more elegant window design.




