Interior from an unlit kitchen looking out through a full-height anthracite aluminium casement at midday, exposed for the garden, so the 48 mm frame reads as a single thin dark line against the bright outside.
4:3
Aluminium
Slim aluminium casements for large openings in extensions and lofts, with the most glass per opening and colour matched to your doors.
- Sightline
- 48 mm
- U-value
- From 1.2 W/m²K
- Lead time
- 6–8 wks
- Sashes to 1400 x 2400 mm and 130 kg
- 213 RAL colours plus anodised
- Qualicoat finish, wipe down only
The whole aluminium square on and filling the frame, in the fixed light configuration, shot level in flat overcast light against a plain wall so the proportion and the frame-to-glass ratio can be read without perspective. Unit at 1400 x 2400 mm.
3:4
Close detail of the meeting line at eye level in raking light, tight enough that the joint and the seal are legible and the 48 mm sightline can be measured off the frame, with the background thrown out of focus.
1:1
The hand-level detail: concealed friction hinges photographed in use on the 213 ral, matt, satin or textured finish, close enough to show the surface texture and the fixing, with a hand on the handle for scale.
4:3
From inside the room looking out through the aluminium, the unit open where it opens, late afternoon light on the floor, so the product is seen the way it is lived with rather than the way it is sold.
16:9
The aluminium at dusk from outside, closed, the room lit behind the glass, so the finish and the glass line read against the light.
3:4
Specifications & options
Aluminium
Description
Aluminium gives the most glass for the hole. A 48 mm sightline and a 34 mm polyamide thermal break carry sashes to 1400 x 2400 mm and 130 kg at Uw 1.2 W/m2K, dropping to 1.1 with a 44 mm triple unit. Powder coat runs to 213 RAL colours plus anodised, matt, satin or textured, with a different colour inside and out if the elevation needs it. Structural mullions run to 6000 mm, so a window can be coupled straight into a door or screen. It is not the cheapest option per square metre.
Specify it when
Rear extensions, loft conversions and new-build openings where the opening is large, the sightline matters more than the price per square metre, and the colour has to match doors or a rooflight.
Specification
- Sightline
- 48 mm
- Frame depth
- 75 mm
- Thermal break
- 34 mm polyamide
- Maximum opening sash
- 1400 x 2400 mm
- Maximum sash weight
- 130 kg
- Sealed unit
- 28 to 44 mm
- Uw
- From 1.2 W/m2K, 1.1 with a 44 mm triple unit
- Coating
- Polyester powder to 60 microns, Qualicoat
- Structural mullion
- To 6000 mm
- Guarantee
- 10 years, coating included
- Lead time
- 6-8 weeks from survey to install
Configurations
- Fixed light
- Side-hung casement
- Top-hung vent
- Tilt and turn
- Structural mullion runs to 6000 mm
- Glazed corner post
- Coupled to doors and screens
Glass
- 28 mm double, asymmetric 6/18/4, Ug 1.1
- 44 mm triple, Ug 0.6
- Solar control, g value 0.36
- 6.8 mm acoustic laminate
- Low-iron for true colour
- Toughened or laminated to BS 6206
Finishes
- 213 RAL, matt, satin or textured
- Anodised silver, bronze or black
- Dual colour inside and out
- Sample panel sprayed before order
Hardware
- Concealed friction hinges
- Flush lever handles
- Multipoint espagnolette
- Egress hinges
- Restrictors
- Head-integrated trickle vents, 5000 mm2 equivalent area
Performance
- Thermal
- Uw from 1.2 W/m2K, 1.1 with a 44 mm triple unit
- Acoustic
- 35 dB on an asymmetric double, 41 dB with acoustic laminate, 44 dB with triple glazing
- Security
- PAS 24, Secured by Design
- Weather
- BS 6375, water tightness 750 Pa, wind resistance 2400 Pa
- Finish
- Qualicoat polyester, 60 microns, wipe down only
Interior from an unlit kitchen looking out through a full-height anthracite aluminium casement at midday, exposed for the garden, so the 48 mm frame reads as a single thin dark line against the bright outside.
1:1
More in windows
Tight 45-degree crop on the closed meeting line of a City flush casement in raking daylight, no sky in the glass, so the sash face sitting dead level with the frame is the only subject.
4:3
uPVC / City
Finished timber casements racked on edge in the spray shop under even overhead light, a row of the same colour receding, so the depth of the three-coat film and the consistency down the line are both visible.
4:3
Timber
Straight-on interior of a box sash with the lower sash raised 300 mm in soft north light, meeting rails offset, brass sash lift and cast pulley both legible at the head of the box.
4:3
Sash
Three-quarter view from the pavement of a five-facet bow bay on a Victorian ground floor in late afternoon sun, raking light across the lead roof, each facet angle and corner post clearly separated.
4:3