heroal W 77 i

The block window system heroal W 77 i with interior glazing is characterised by delicate elevations, large glass surfaces and maximum transparency. The external appearance of the window, with no visible casement, ideally emphasises the narrow face widths of the system, and with thermal insulation values of Uf=1.0 W/m2K (in standard cross-section), the highest architectural and energy-related demands are met. The window system can also be integrated into the façade as a floating window.