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heroal W 77 HI

A window system to meet present and future needs

An intelligent combination of geometry and material enables the new heroal W 77 window system to achieve a Uf value of 0.95­W/m²K (view width: 120 mm) at passive-house level, with an installation depth of just 77 mm. With this development, heroal has designed the thermally separated aluminium window in such a way that it not only meets present demands stated by the 2016 German Energy Savings Regulation (Energieeinsparverordnung, EnEV) over the long term, but also fulfils future requirements for “nearly zero-energy buildings”.


Cross section

System dimensions

Profile depth [mm]

Frame profile
77
Leaf profile
89
Bar profile
77

Visible profile width [mm]

Frame profile
50 - 250
Leaf profile
33 - 67
Bar profile
74 - 254

Casement profi e variations

Push rod fitting groove [SBN]
Plastic fitting groove [KBN]

System properties

Glass filling strength [mm]
66
Max. leaf weight [kg]
300
Max. leaf heights [mm]
2.800

Performance characteristics

0,95/120 Thermal insulation [Uf in W/m2K] / Profile width [mm]
4 Air permeability
>0,72 Heat insulation (Uw in W/m2K) / Profile width [mm]
9A Resistance to driving rain
C5/B5 Wind resistance
1-5 Soundproofing class
RC4 Resistance to burglary
1 Operating forces
Impact resistance
4 Mechanical resistance
Load-bearing capacity of safety equipment
Continuous function

* Uw value in accordance with DIN EN ISO 10077-1; calculated using an element size of 1,230 x 1,480 mm; standard visible profile width

!) Application-specific special approvals for oversized elements from heroal

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