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ES 50 (Eco System 50) is a universal window system, with good performance when it comes to stability, thermal insulation and security.

The window system offers a range of solutions for inward and outward opening windows and can be combined with ES 50 doors, CP 130 and CP 155 sliding systems and Ventalis ventilation units.

Features and benefits:

  • Inward and outward opening casement windows.
  • Drained and ventilated glazing with EPDM synthetic rubber gaskets.
  • Choose from a full range of polyester powder coat colours and anodized finishes.
  • Dual colour available offering a different colour inside and out.
  • Weather stripped profiles with polyamide thermal breaks.
  • 10 year systems guarantee provided as standard.
  • Corresponds to the BRE Global Green Guide online generic specification for windows and achieves a summary rating of A, Element Number 1231500007.
  • Meets the very stringent requirements to be awarded the Secured By Design accreditation.
  • Available as smoke and heat evacuation casements to EN 12101-2.
  • CAD and BIM details available on request.


  • Air permeability: Up to 600 Pa (class 4).
  • Wind load resistance: Up to 1600 Pa (class C4).
  • Water tightness: Up to 750 Pa (class E750).
  • Acoustic performance: Rw (C;Ctr) = 34 (-1;-4) dB/ 39 (-1;-3) dB, depending on the glazing type.

Please refer to Reynaers product CE Passport certificates for clarification

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

Double glazing: 1.6 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

Refer to drawings or schedule.



Polyester powder coated

Insert requirement.

Uniclass 2015 Aluminium window units (Pr_30_59_98_02)
Specification data
Product Reference

Aluminium ES 50 Eco System Functional




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


Insert requirements: Top or side hung projecting, top or side hung.


Refer to drawings or schedule.



Polyester powder coated

Insert requirement.

Colour -

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.

Ironmongery -

Horizon handles

Orchid handles

Shield handles

Standard handles


Insert requirement.



Remote operation

Ventalis trickle ventilator

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 59 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 glass fibre reinforced polyamide strips, separating the internal and external faces, mechanically jointed and glued to form a single compound profile.
  • 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 ES 50 Eco System Functional: A thermally improved two-chamber system for windows.


- 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.


- Ventalis trickle ventilator:

A controllable ventilation system with a self-regulating airflow. The patented self-regulating units automatically open and close the air inlet when wind pressure increases or decreases, keeping the incoming airflow constant. Acoustic option available to 34/43 Db (Windows and Doors), 36/45 Db (Sliding Doors).

Consult manufacturer for ironmongery recommendations and details.


  • 4-32 mm single or double 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.