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Origin Doors

Aluminium Window Specification

Specification overview

External window viewExternal window view

External view of Origin Window

Side window viewSide window viewSide window view

Profile specification

Outer Frame Depth80mm
Sash Depth80mm
Frame and Sash Sightline91mm
Mullion and Sash Sightline148mm

Origin Window specification

Energy RatingFrom B to A++ (see page 9)
U valueUp to 0.9 W/Km2K
AirClass 4 (600Pa)
WindClass B5 (2000Pa)
WaterClass E1500 (1500Pa)
Side hung
Max Height1800
Max Width1000
Max Weight50Kg
Top hung
Max Height1500
Max Width1500
Max Weight50Kg


  • Up to 20 year guarantee
  • Internally and externally flush casement. The sash closes into the frame sitting in line with the inside and outside of the window
  • Chamfered bead
  • Mechanically double crimped corners
  • Easi-clean mechanism on side hung configurations between 400-900mm
  • Yale Encloser locking mechanism
  • Stainless steel friction stay hinges

Options & extras

  • Fixed, casement, bay and gable configurations
  • Accommodates double and triple glazing with unit sizes of 28mm or 44mm
  • Open out or fixed
  • 95, 155 and 185mm cills
  • Available in over 150 different colours
  • Fixing straps
  • 15 or 35mm frame extender
  • Restrictor hooks
  • Egress hardware
  • Aerogel insulation
  • Window couplers
  • Black or white glazing gaskets
  • Door to window coupling
  • 2500EA Trickle vents available
  • Marine finish
  • Comprehensive handle range, including colour matched options

Available in the following colour finishes:

lead time

Origin's Popular Colour Range is available on a one week lead time

Dark Silver Metallic (9007M)
Black Grey (7021M)
Jet Black (9005M)
Slate Grey (7015M)
Hipca White (9910G)
Anthracite Grey (7016M)
9910G / 7016M (Dual Colour)Dual Colour is available on a three week lead time

Origin's four woodgrain colours are available in just one week

Natural OakNatural Oak
Golden OakGolden Oak

Origin's special RAL colours are available on a three week lead time

Lead Times

Stock colour casement windows1 week
Non-stock colour windows3 weeks
Stock colour gables2 weeks
Non-stock colour gables4 weeks
Aerogel windows4 weeks

Features and Benefits

Window security


  • The Origin Window is Pas 24 certified.
  • Origin casement windows (1500mm x 2500mm double top hung) have been impact tested up to 2633Pa and fixed windows (1525mm x 2641mm single panel) tested to 3591Pa without failure or any sign of weakness in the crimps.
  • Origin hinges are made of ferritic stainless steel (to BS EN 10088-2 Grade, previously known as 304) for enhanced corrosion resistance. The hinges are tested to 50,000 cycles and feature a friction adjustment without metal to metal contact ensuring minimum wear.
  • Hinge guards featuring patented anti-slip & lock technology are fitted as standard along the hinged side of the window. The Yale Encloser lock is fitted to accurately align with the keeps. The cams are manufactured to be finely adjustable, if necessary.

Thermal efficiency

The Origin Window is fitted as standard with a 35mm polyamide thermal break featuring interlocking barriers that minimise air flow through the system.

A bespoke cavity gasket is fitted into the internal chamber of the window between the sash and the frame (excl. the locking side) in order to further improve thermal efficiency.

The Origin Window is available with Aerogel as an optional upgrade. Aerogel is the most insulating material on the planet and allows the Origin Window to achieve a Window Energy Rating of A++ or up to a 0.9 U value. More information on Aerogel

See the Window Energy Rating Specification Sheet for certified test results.

Optional Extras

Restrictor hook

Restrictor hooks

Variable restrictor hooks limit the sash opening to 70mm but can be unhooked to open the window fully.

Restrictor hook
Window trickle vents

Trickle vents

Trickle vents have to meet the minimum air flow rates as defined in the British Building Regulations. Trickle vents can be fitted through the sash or through a 35mm frame extension.
View the cross-section drawings.

Additional information

England and Wales:
Equivalent Air Rates of 2500EA and 5000 EA as required by Approved Document "F" 2006 for England & Wales.

Scotland and Northern Ireland:
2000, 3000, 4000, 6000 & 8000 free air models available for use in Scotland and Northern Ireland.

Egress application

Approved Document B of the Building Regulations 2010 specifies the following provisions with regards to egress application:

Section 2.8 Emergency egress windows and external doors

Any window provided for emergency egress purposes and any external door provided for escape should comply with the following conditions:

a. The window should have an unobstructed openable area that is at least 0.33m2 and at least 450mm high and 450mm wide (the route through the window may be at an angle rather than straight through). The bottom of the openable area should be no more than 1000mm above the floor; and

b. the window or door should enable the person escaping to reach a place free from danger and free from fire. This is a matter for judgement in each case, but, in general, a courtyard or back garden from which there is no exit other than through other buildings would have to be at least as deep as the dwelling house is high to be acceptable.

Note 1. Approved Document K protection from falling, collision and impact specifies a minimum guarding height of 800mm, except in the case of a window in a roof where the bottom of the opening may be 600mm above the floor.

Note 2. Locks (with or without removable keys) and stays may be fitted to egress windows, subject to the stay being fitted with a release catch, which may be child resistant.

Note 3. Windows should be designed such that they will remain in the open position without needing to be held by a person making their escape.

Introducing Aerogel

What is Aerogel?

Aerogel is a synthetic highly porous solid material derived from a silica dioxide gel in which the liquid has been extracted and replaced with air. The gel is critically heated and the liquid evaporated, leaving a bonded, cross-linked macromolecule framework.

The name Aerogel may be misleading at first, as aerogels are dry, rigid or elastic foam-like materials but the name originates from the fact that aerogels are usually derived from wet gels, physically similar to edible jelly.

A brief history of Aerogel

Aerogel is believed to have been discovered in 1931 as a result of a bet between two chemists, Samuel Kistler and Charles Learned, over who could replace the liquid in jelly with gas without causing the remaining solid to shrink. It was Kistler that first succeeded.

Since then aerogels have been used in a wide range of applications from space exploration (Stardust launch and Mars exploration rovers) to commercial manufacture of building insulation, clothing, tennis rackets, supercapacitors and thickening agents in cosmetics.

Due to the expensive processes involved in producing aerogel, commercial manufacture of aerogel has only become viable since the dawn of the 21st century.

Why is Aerogel such a good insulator?

Aerogel can withstand very high temperatures, delivering 39 times more insulation than fibreglass. Aerogels are fantastic insulators because they limit two of the three methods of heat transfer (convection, conduction and radiation). Firstly, they are excellent conductive insulators because they are composed of 99.8% gas (air) and gases are very poor at conducting heat. The remaining 0.02% of the aerogel is made of silica, which is incidentally also a poor conductor of heat. Secondly the lattice structure of the solid is highly effective at minimising convection because air cannot circulate through it. While aerogels are poor radiative insulators (infrared radiation transfers heat) within an aluminium window frame, the aluminium blocks any infrared radiation.