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Innovative composite window system consisting of timber, thermal foam and aluminium with integrated internal sun and privacy protection, which provides a window solution for low energy and energy-saving houses.

It consists of aluminium external and timber internal components sandwiched between foam. The triple glazed panes are glued to the timber frame, ensuring strong structural characteristics and good resistance against torsion and the integrated sun and privacy protection is located between the triple glazing and another pane of glass. This innovative composite window gives an attractive glass appearance with a modern and square-edged design, integration into the façade is available on three sides and the glass is easier to clean with frameless sashes. The interior design is modern with a square-edged sash. The aluminium attachment external cover is weatherproof and has an easy cleaning surface.

The internal triple insulating glazing SOLAR+ offers the highest degree of thermal insulation and energy efficiency. The overall energy transmission value (g value) is 20% higher than with standard triple glazing. Thus the solar energy gain also increases by 20%, providing additional heating and a contribution to climate protection.

Sun and privacy protection:

The special composite construction offers perfect quadruple protection; increased thermal and sound protection as well as integrated sun and privacy protection which lie between the panes. It is available with a choice of Roman blind, Venetian blind or Duette®, all with the option of an integrated photovoltaic operation module.

General information

As drawing

As schedule


Engineered laminated timber in spruce and larch

Mitred aluminium profiles with PVC-U and aluminium brackets, fully glued

Extruded thermal foam, HCFC, HFC and FC free

Uniclass 2015
Pr_30_59_98_15 Composite window unitsPrimary
Specification data - Composite window units
Product Reference

HV 350 Timber/ Aluminium Window




Tilt/ turn



As drawing

As schedule


Manufacturer's standard

Security glass


Manufacturer's standard



Insect protection

Not required

Fly screen, drop down

Fly screen, fixed

Fly screen, sliding

Fly screen, turn





Not required


Trickle Vent

Integrated sun and privacy protection -

Duette® blind

Roman blind

Venetian blind

I-tec shading

Not required


Frame -
Design style


Home Pure

Home Soft


Frame colour/ finish -

Insert requirement from manufacturer's literature.


Insert requirement from manufacturer's literature.


Insert requirement from manufacturer's literature.

Standard product features


  • Engineered laminated timber in spruce and larch.
  • Mitred aluminium profiles with PVC-U and aluminium brackets, fully glued.
  • Extruded thermal foam, HCFC, HFC and FC free.

Frame construction depth:

85 mm.

Glazing thickness (internal):

28 mm or 32 mm.

6 mm or 4 mm toughened glass has to be used for the outer insulating glass pane.


Triple gasket construction of EPDM and Q-LON sealing.

View width:

  • Frame/ sash: 114 mm.
  • Flying mullion (with two sashes): 134 mm.
  • Transom/ mullion (with two sashes): 173 mm.

Technical properties:

  • Thermal insulation: Up to 0.60 W/m²K.
  • Sound protection: 43–47 dB.
  • Air permeability (to ÖNORM EN 1026): Up to category 4.
  • Impermeability (to ÖNORM EN 1027): Up to category 9A.
  • Wind resistance (to ÖNORM EN 12210): Up to category C5.
  • Endurance test (to ÖNORM EN 1191): Category B5.

Product Options


Bespoke options are available depending on the application; including one, two and three sash windows and one to six part constructions. Contact manufacturer for more information.


Glazing panes are glued all around the surfaces and sealed with transparent silicone. Laminated security glass offers burglary protection through active and passive security. The splinter-free glass with a non-tear able, tough and elastic foil between the panes provides protection from injuries.

Frame colour/ finish:

  • Internal: Eleven standard colours are available for the timber components, along with special RAL and NCS colours.
  • External: Anodized, RAL, highly weather resistant structural, metallic and timber decor colours available for the aluminium components.


Features fully concealed hardware fitted on both bottom corners, ensuring a better appearance, easy cleaning and reduced air permeability from within. RC1 and RC2 provide further security.

I-tec shading photovoltaic blinds:

Self-sufficient energy supply via integrated photovoltaic operation module and operated with a wireless control.