aluminium window. alitherm 300. smarts window. contemporary window
Aluminium Casement Windows - Contemporary (Alitherm) - Image 2
aluminium window. alitherm 300. smarts window. contemporary window
aluminium window. alitherm 300. smarts window. contemporary window
aluminium window. alitherm 300. smarts window. contemporary window
Material

Aluminium

Glass Specification

28mm

Glazed

Externally glazed with security clips

Lowest Glass Value

1.0 m²K

Lowest Overall Frame Value

1.6 m²K

Frame depth

53mm

Outer frame height

33mm or 47.5mm

Sash designs

Square, Chamfered or Scotia

Standard solid colours

Matt Grey 7016, White Gloss 9010 or Matt Black 9005

Lead times

Minimum 4-6 weeks

Aluminium Casement Windows

Contemporary (Alitherm)

Our contemporary casement window combines traditional design, advanced engineering and brilliant functionality for high levels of security and thermal efficiency to complement any type of build. Competitively priced. To configure your choice of window, complete the configurator and add to basket for your final price. For help read the FAQ’s or contact us.

Our contemporary casement window combines traditional design, advanced engineering and brilliant functionality for high levels of security and thermal efficiency to complement any type of build. Competitively priced. To configure your choice of window, complete the configurator and add to basket for your final price. For help read the FAQ’s or contact us.

Choose Options

Measurements

Width (300mm - 3300mm)
Width

Measuring doors & windows is simple but please follow our easy instructions:

  • For bifold & sliding doors to work as smoothly as designed, it is imperative that the outer frame is fitted level and square. To ensure this, you must measure the brickwork aperture as shown below.

  • Three measurements of width and height should be taken and the squareness of the aperture determined by, for example, taking diagonal measurements (see image below). The smallest measurement of width and of height minus a fitting tolerance (usually 10mm) is used to determine manufacturing sizes.

Please also take into account the height of the door’s threshold, that you step over. This is critical for the following reasons:

  • On open-out folding doors with a standard threshold, it allows the possibility of aligning your internal floor with the top of the threshold, to reduce the step over height.

  • On open-out folding doors with an aluminium low threshold, it ensures a level transition from outside to inside, or between internal rooms.

  • On open-in doors it ensures that the opening door sashes do not foul your internal floor.

mm
Height (300mm - 2500mm)
Height

Measuring doors & windows is simple but please follow our easy instructions:

  • For bifold & sliding doors to work as smoothly as designed, it is imperative that the outer frame is fitted level and square. To ensure this, you must measure the brickwork aperture as shown below.

  • Three measurements of width and height should be taken and the squareness of the aperture determined by, for example, taking diagonal measurements (see image below). The smallest measurement of width and of height minus a fitting tolerance (usually 10mm) is used to determine manufacturing sizes.

Please also take into account the height of the door’s threshold, that you step over. This is critical for the following reasons:

  • On open-out folding doors with a standard threshold, it allows the possibility of aligning your internal floor with the top of the threshold, to reduce the step over height.

  • On open-out folding doors with an aluminium low threshold, it ensures a level transition from outside to inside, or between internal rooms.

  • On open-in doors it ensures that the opening door sashes do not foul your internal floor.

mm
Window Styles
Window Styles

The Mullion width (W1 & W2) in the image shown is measured from the side of the frame to the centre of the mullion bar. The industry standard is 600mm. The transom height (H1) is measured from the top of the frame to the centre of the transom bar. The industry standard is 400mm.

Fire Escape Regulations

New Build Property

To conform to building regulations all first floor windows must have a means of fire escape. Bathrooms, toilet and landing windows however are exempt.

This window can be installed on the ground floor without consideration unless it is in a room that does not lead directly into a hallway or does not have a main exit door.

A fire escape window should open without obstruction to at least 0.33 mu² and at least 450 mm high or 450 mm wide. If one of the dimensions is at the 450 mm minimum, then the other dimension will need to be at least 734 mm to achieve 0.33 mu². The bottom of the openable area should be no more than 1100mm above the floor.

Replacement Windows

Current regulations state that you can not downgrade your existing means of escape in the event of a fire. A window with a mullion conforms, subject to the above, and would not downgrade your means of escape.

Style 1
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Style 2
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Style 3
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Style 4
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Style 5
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Style 6
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Style 7
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Style 8
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Style 13
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Style 14
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Style 15
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Style 16
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Style 17
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Style 18
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Style 21
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Style 23
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Style 24
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Style 25
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Style 26
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Style 27
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Style 33
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Style 34
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Style 36
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Style 67
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Style 78
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Style 88
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Style 89
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Product Options

Colour ** When ordering Bespoke RAL or Dual RAL, the total cost of all special colour options must exceed £2500 inc. VAT **
Colour

When ordering Bespoke RAL or Dual RAL, the total cost of all special colour options must exceed £2500 inc. VAT

To view in full size click here

White RAL 9010
+£0.00
Dark Grey RAL 7016
+£0.00
Black RAL 9005
+£0.00
Grey (Outside) / White (Inside)
+£0.00
Black (Outside) / White (Inside)
+£0.00
Bespoke RAL
+£35.00
Dual RAL
+£55.00
Finish
Gloss
+£0.00
Matt
+£0.00
Satin
+£0.00
Matt (Outside) / Gloss (Inside)
+£0.00
Dual RAL finish as above
+£0.00
Frame Type
Frame Type

Please click the links below to view the sightline drawings:

33mm Outerframe:

33mm Slim Frame with 42mm Extension – For use with Trickle Vents ONLY

33mm Slim Frame with Chamfered Sash

33mm Slim Frame with Scotia Sash

33mm Slim Frame with Square Sash

 

47.5mm Outerframe:

47.5mm Frame with 33mm Extension – For use with Trickle Vents ONLY

47.5mm Frame with Chamfered Sash

47.5mm Frame with Scotia Sash

47.5mm Frame with Square Sash

Slim 33mm Frame
+£0.00
47.5mm Frame
+£0.00
Cills
Cills

The industry standard is 150mm. A stub cill may be required if you have a small reveal or are sitting your door forward in the reveal and want to minimize the projection of the cill. You may choose an 190mm cill if the door is sitting back in the reveal and you need to bridge the brickwork at the base of the door.

The 190mm and 225mm cills have to be selected on triple track sliding patio door systems, due to the width of the bottom frame.

None
+£0.00
85mm
+£0.00
150mm Cill
+£0.00
190mm Cill
+£0.00
Sash
Sash

Chamfered Sash – On a chamfered casement window the leading edge of the sash is chamfered. The glazing bead is a square design and matches the bead used in the fixed lights.

Scotia Sash – On a scotia casement window the leading edge of the sash has a scotia design. The glazing bead is a square design and matches the bead used in the fixed lights.

Square Sash – On square line casement windows the leading edge of the sash is square. The glazing bead in the sash is a square and 9mm deep. The glazing bead in the fixed lights is the same design but is a different dimension at 13mm deep.

None
+£0.00
Square
+£0.00
Trickle Vent
Trickle Vent

PVC Windows

Trickle vents on PVC windows are fitted to each opening sash unless there are more than two where they will be fitted to the first and last sash. Fixed PVC windows are fitted with a 20mm frame extension at the head of the window and the vent is fitted into the frame. These are a PVC vent in either white, tan or rosewood.

Contemporary Aluminium Windows

33mm slim frame

Trickle vents on these windows are fitted to a 42mm frame extension at the head of the window above the first and last sash or centrally if this is one sash. These are an aluminium trickle vent in either grey, white or black.

47.5mm frame

Trickle vents on these windows are fitted to the frame with a 33mm frame extension at the head of the window above the first and last sash or centrally if this is one sash. These are an aluminium trickle vent in either grey, white or black.

Premium & Designer Windows

43mm slim frame

Trickle vents on these windows are fitted to a 38mm frame extension at the head of the window above the first and last sash or centrally if this is one sash. These are an aluminium trickle vent in either white or black. 

55mm frame

Trickle vents on these windows are fitted to the frame with a 20mm frame extension at the head of the window above the first and last sashor centrally if this is one sash. These are an aluminium trickle vent in either white or black

PVC Tilt & Turn Windows

Trickle vents on these windows are fitted to each opening sash. These are a PVC vent in either white, tan or rosewood.

Aluminium Tilt & Turn Windows

Trickle vents on these windows are fitted to the frame. These are an aluminium trickle vent in either white or black.

Yes
+£0.00
No
+£0.00
Handle Choice
Handle Not Required
+£0.00
White
+£0.00
Black
+£0.00
Grey
+£7.00
Bright Chrome
+£7.00
Gold
+£7.00
Satin Silver
+£7.00

Glass

Glass Energy Ratings
Glass Energy Ratings
Low E Coating Soft
Spacer Bar Energy
Cavity Gas Argon
External Glass Low Iron
Glass U Value 1.2
Overall U Value 1.7
Window Energy Rating (WER) A
Low E Coating Soft
Spacer Bar Energy
Cavity Gas Argon
Glass U Value 1.2
Overall U Value 1.7
Window Energy Rating (WER) B
Low E Coating Soft
Spacer Bar Energy
Cavity Gas Argon
Internal Glass Solar
Glass U Value 1.0 U
Overall U Value 1.5 U
Window Energy Rating (WER) B
A Rated
+£10.00
B Rated
+£5.00
Solar Control Glass
+£25.00
Obscure Glass
Obscure Glass

Pilkington Texture Glass Warwicku2122 is a random pattern which has implications when cutting the glass down into finished sizes. If a pane is small enough, potentially there could be no evidence of the pattern at all.

None
+£0.00
Satin
+£0.00
Arctic
+£0.00
Autumn
+£0.00
Chantilly
+£0.00
Charcoal Sticks
+£0.00
Contora
+£0.00
Cotswold
+£0.00
Digital
+£0.00
Everglade
+£0.00
Flemish
+£0.00
Florielle
+£0.00
Mayflower
+£0.00
Minster
+£0.00
Oak
+£0.00
Pelerine
+£0.00
Reeded
+£0.00
Stippolyte
+£0.00
Sycamore
+£0.00
Taffeta
+£0.00
Warwick
+£0.00
Toughened Glass
Toughened Glass

Glass only requires to be toughened in critical locations as defined by part ‘N’ of the building regulations.

Part N (Glazing) deals primarily with safe breakage of glazing in critical locations, manifestation of glazing to prevent collision, safe cleaning of windows in commercial buildings, prevention of falling from windows and glazed openings.

The below diagram shows locations that require to be toughened (i.e. shaded areas). Click here if you require the detailed regulation part ‘N’

Yes
+£40.00
No
+£0.00
Glass Design
None
+£0.00
Square Leaded
+£0.00
Diamond Leaded
+£0.00
18mm White Georgian Bar
+£0.00
25mm White Georgian Bar
+£0.00
Choose Options

Chosen options

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Frequently Asked Questions

Energy Rating. Below are the options:

A Rated with the 33mm Slim frame only.

B Rated with both the 33mm slim and 47.5 standard frame Solar with both the 33mm slim and 47.5 standard frame (Energy rating: B)

Note: Solar is to do with the glass specification used and not the profile itself

33mm slim – (this is not suitable if rendering or cladding the building) Frame Width: 33mm Frame Depth: 53mm 47.5mm standard – (this is suitable if rendering or cladding) Frame Width: 47.5mm Frame Depth: 53mm

This is the depth of the opening from the top of the frame. Minimum drop is 320mm.

This is the width of the opening part of the window (sash). Minimum width is 450mm

Both the 33mm and 47.5mm profile require an add on to the head of the frame to allow for a trickle vent

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