heroal W 77 i

The block window system heroal W 77 i stands for a wide range of architectural designs, made possible through subtle, slim face widths. Sash profiles are available with push rod fitting grooves (SBN) and plastic fitting grooves (KBN), which makes a flexible fabrication possible. The minimum face width for this system is only 81 mm. The block window system heroal W 77 i offers a maximum proportion of glass, perfect thermal efficiency and elegant designs without a visible sash. It stands for versatile uses, for example as insert element in a curtain wall. The standard heroal W 77 i system with a face width of 101 mm achieves a U_w value of 1.0 W/m²K and can be further enhanced or extended. The system extension is heroal W 77 i UD (Universal Design) for block French doors with a threshold height < 20 mm.

• High thermal insulation with low design depth
• Proven performance features, combined with heroal WF and heroal WF EM fittings
• High proportion of glazing, slim profile face widths