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”.

heroal W 77 - brochure 1.92 MB BIM data heroal W 77 HI System request >

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
Frame-Leaf combination: 90
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 [U_f in W/m²K] / Profile width [mm]

4 Air permeability

> 0,72 Heat insulation (U_w in W/m²K) / Profile width [mm]

9A Resistance to driving rain

C5/B5 Wind resistance

1-5 Soundproofing class

RC 3 Resistance to burglary

1 Operating forces

5 Impact resistance

4 Mechanical resistance

✓ Load-bearing capacity of safety equipment

3 Continuous function

* U_w 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

heroal IS

heroal WF

heroal fall protection

heroal LS

Tailored support for architects

In order to ensure all-inclusive support, heroal’s team of consultants offer advice across Germany. heroal’s technical support deals with all the questions you may have concerning windows, doors and curtain walls as well as roller shutters, sun protection and roller doors -if required, also on-site of your building project. Are you new to heroal? Get in touch with us today!

Request support for architects > Request on the phone >

All information in the heroal Communicator

Our Communicator, heroal’s online workplace, always makes the current documentation available to you. Via the Communicator-App, you can get in touch with your architect’s consultant immediately.

Download test documents
Find product information
Readily available CAD data instantly
Download BIM data
Latest projects for reference

Communicator registration > Communicator log-in >