Aluminium Window CS 104 Concept System

Concept System® 104 is Reynaers latest and most innovative inward opening window system, designed to increase comfort and decrease energy consumption to a minimum.

The increased built-in depth (104 mm) contributes to the strength and stability of the elements, allowing large dimensions, even with the application of triple glazing making it ideal for Passivhaus applications.

Features and benefits:

  • Inward opening casement windows.
  • Drained and ventilated glazing with EPDM synthetic rubber gaskets.
  • Choose from a full range of polyester powder coat colours and anodised finishes.
  • Dual colour available offering a different colour inside and out.
  • Weather stripped profiles with polyamide thermal breaks.
  • High insulation variant available as standard.
  • 10 year systems guarantee provided as standard.
  • Awarded the coveted Swiss Minergie® component accreditation for thermal performance.
  • Uf values down to 0.8 W/m²K making it ideal for Passivhaus applications.
  • Corresponds to the BRE Global Green Guide online generic specification for windows and achieves a summary rating of A, Element Number 1231500007.
  • CAD and BIM details available on request.


  • Air permeability: Up to 600 Pa (class 4).
  • Wind load resistance: Up to 2000 Pa (class 5).
  • Water tightness: Up to 600 Pa (class 9A).
  • Acoustic performance: Rw (C;Ctr) = 36 (-1;-4) dB/ 43 (-2;-5) dB, depending on the glazing type.

Thermal insulation (to EN 10077-2:2012):

  • Double glazing: 1.2 W/m²K (depending on the frame/ vent combination and glass unit specification).
  • Triple glazing: 0.8 W/m²K (depending on the frame/ vent combination and glass unit specification).


PAS24:2013 (UK Secured By Design Standard) and RC2/ WK2 (European standard EN(V)1627–EN(V)1630 (windows).


  • Fixings must ensure the window is retained securely within the opening without damage or distortion to the window frame.
  • Generally, fasteners should be positioned 150 mm from each corner and each mullion/ transom, and at centres not exceeding 600 mm.

General information


Uniclass 2015

Pr_30_59_98_02 Aluminium window unitsPrimary


L10/25 Aluminium windows

L10/330 Aluminium windows

Specification data - Aluminium window units

Product Reference

Aluminium CS 104 Concept System Functional

Aluminium CS 104 Concept System High



Open in

Insert requirements: Tilt turn, tilt only, turn only.


Refer to drawings or schedule.





Polyester powder coated

Insert requirement.




Insert requirement.


Insert requirement.

Glazing details

Insert details of glazing unit including, spacer type and dimension, glass type (emissivity, safety, solar, g value and energy factors) and thickness.




Horizon handles

Orchid handles

Shield handles

Standard handles


Insert requirement.



Remote operation

Window restrictor

Standard product features

Reynaers frame and components:

  • Aluminium profiles shall be extruded from EN AW-6060 (AlMgSi0.5 F22) aluminium alloy to comply with EN 573 – parts 3 and 4.
  • Designed and manufactured to comply with BS 4873.
  • Vent frame members are 104 mm front to back and mitre cut at 45°. All corner joints to be assembled with screwed corner cleats, thermal corner supports and rebate supports and glued. All joints are sealed during fabrication against water entry.
  • Reynaers profiles are insulated with polyamide strips, 25% glass fibre reinforced to BUtgb approval, separating the internal and external faces, mechanically jointed and glued to form a single compound profile with a minimum shearing force of 30 N/mm (statistic average).
  • Dry glazed to accommodate a wide range of single, double and triple glazing units with internal clip-in aluminium glazing beads.
  • Weather-stripping to be EPDM extruded synthetic rubber gaskets to DIN 7863 and ISO 3934, set in undercut grooves in the frame and vent.
  • The Reynaers systems carry CE – Marking fully compliant with the EU Construction Products Directive (CPD) to the relevant product standard BS EN 14351-1 for windows and doors and BS EN 13830 for curtain walls.
  • Manufactured and supplied under the requirements of ISO 14001, the internationally accepted standard that outlines an effective environmental management system.
  • Manufactured and supplied under a quality system certified to BS EN ISO 9001: 2000.
  • Reynaers Aluminium guarantees that the Reynaers Aluminium systems meet the technical specifications and standards of the country and the product in question. The current processing and maintenance regulations mentioned in the Reynaers Aluminium catalogues determine the extent of this 10 year guarantee (five year guarantee for wearing parts).

Product Options

Product reference:

  • Aluminium CS 104 Concept System Functional: A thermally improved three-chamber system for windows.
  • Aluminium CS 104 Concept System High: Thermally enhanced variant.


- Horizon handles:

Available anodized, or powder coated in one of 400+ RAL colours.

- Orchid handles:

Available in white, black or anodized colours.

- Shield handles:

Available in unpolished, natural anodized colour. Also complies with burglar resistance classes 2 and 3.


  • Up to 65 mm double or triple glazing options. Contact the glass supplier for details of the glazing unit including, spacer type and dimension, glass type (emissivity, safety, solar, g value and energy factors), thickness and weight.
  • Glass to be set against extruded EPDM rubber gaskets retained in undercut grooves within the aluminium profile and clip-in glazing beads.


  • Profiles powder coated in a range of RAL or ‘Coatex’ colours to APA Qualicoat standard or BS EN 12206-1:2004.
  • Anodized in satin or bronze colours to EWAA/ EURAS-Qualanod standard or BS 3987:1991.
  • Profiles can be finished with different internal and external colours, powder coated or anodized.

Consult manufacturer and insert requirements.

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