Slimline
    System
Kömmerling Aluminium

Slimline System

KS57.1 SL ST

[Allure]

The pinnacle of thermally broken sliding door engineering, the KS57.1 SL ST [Allure] system transcends conventional performance boundaries. Conceived for the ambitious architectural projects, this thermally broken, 24.5 mm interlock system carries panels up to 2.5 m wide and 4.5 m tall – each bearing up to 1,000 kg with imperceptible ease. 
Combining supreme energy efficiency, a 3.5 kPa wind load rating, 90° corner opening capability, and an ultra-slim interlock profile, the KS57.1 SL ST [Allure] is the definitive expression of monumental scale, thermal intelligence, and enduring luxury.

Thermally Broken
Superior Energy Efficiency

Ultimate Capacity
1,000 kg per Panel

Corner Opening
90° Frameless Provision

The KS57.1 SL ST [Allure] supports configurations of up to 5 panels, each reaching 2.5 m (w) × 4.5 m (h), delivering vast, unbroken glazed facades of a scale and presence rarely achievable in thermally broken sliding systems. Two-track and three-track frame configurations with stainless steel guiderail, inside lip provision, and an optional integrated flyscreen ensure the system adapts with precision to the most exacting architectural briefs.

The thermally broken construction fundamentally separates the interior and exterior aluminium faces, dramatically reducing heat transfer and condensation, making the KS57.1 SL ST [Allure] as thermally intelligent as it is visually striking, and equally at home in extreme heat, cold, or humidity.

A 90° corner opening provision eliminates the need for structural corner posts entirely, granting architects and interior designers the freedom to dissolve the boundary between inside and outside, creating panoramic, column-free corner environments of unrivalled spatial drama. The ultra-slim 24.5 mm interlock sustains refined, continuous sightlines even at the system’s maximum panel scale.

CRAFTED FOR PERFORMANCE 

System Features

The KS57.1 SL ST [Allure] is engineered to perform at the absolute frontier of thermally broken sliding door technology. A wind load resistance of up to 3.5 kPa, among the highest available in thermally broken slim interlock systems, makes it the system of first choice for extreme weather conditions, exposed coastal locations, high-rise façades, and the most climatically demanding environments across the globe.

Precision-engineered heavy-duty rollers bear panel loads of up to 1,000 kg per panel, enabling the system to carry its maximum 2.5 × 4.5 m double or triple-glazed panels with the same effortless, whisper-smooth glide as a standard residential door, maintaining consistent operation across the full lifetime of the installation.

DGU and laminated DGU glazing from 38 to 44 mm is fully accommodated, supporting the most advanced high-performance glass specifications, from acoustic laminated units to solar-control and thermally enhanced triple-layer configurations. A comprehensive multiple locking system secures every panel to the highest available security standard, completing a system that is as uncompromising in safety as it is in performance and design.

Thermally Broken

24.5 mm slim interlock

AWARDS & CERTIFICATIONS
KWD46.1 CL ES_Winwall Certificate (140x100 px)

BS EN Tested
Winwall Certified
AWARDS & CERTIFICATIONS
Portfolio_IN_920x600pxNakheel Tower

Performance Test
Certificate [4 x 4 m]
Portfolio_IN_920x600pxNakheel Tower

Performance Test
Certificate [4 x 3 m]
  • Thermally broken construction delivers superior energy efficiency and condensation control essential for climate-controlled luxury residential and commercial environments
  • Monumental panel capacity of 2.5 m (w) × 4.5 m (h) enables the most expansive floor-to-ceiling glazed façades achievable in a thermally broken sliding system
  • Ultra-slim 24.5 mm interlock width maintains refined, continuous sightlines even at maximum panel size, preserving the visual purity of the façade
  • Wind load resistance of up to 3.5 kPa makes the KS57.1 SL ST [Allure] the system of first choice for exposed, coastal, high-rise, and climatically extreme project locations.
  • 1,000 kg per panel roller capacity enables the use of the heaviest high-performance glazing units without compromise on operation or longevity.
  • DGU and laminated DGU glass from 38-44 mm supports acoustic, solar-control, and thermally enhanced glazing specifications for the most demanding performance briefs
  • 90° corner opening provision eliminates structural corner posts, enabling frameless corner configurations of unrivalled spatial impact
  • 2 and 3-track frame options with SS guiderail and inside lip provide full flexibility for varying opening widths, orientations, and design requirements
  • Optional flyscreen integration adds practical comfort without disrupting the system's ultra-slim sightlines or thermally broken profile integrity
  • Multiple locking system delivers the highest security standard befitting a flagship luxury residential or commercial installation
  • Thermally broken profile system uses a consistent fabrication methodology compatible with premium aluminium processing facilities
  • 24.5 mm interlock standardisation ensures precise dimensional control across all panel sizes up to 2.5 × 4.5 m
  • Concentrated glazing range of 38-44 mm (DGU and laminated DGU) simplifies glass specification and procurement without sacrificing performance breadth
  • Heavy-duty 1,000 kg roller assembly integrates within the standard frame profile, avoiding additional structural reinforcement components during fabrication
  • SS guiderail and inside lip detail are integrated within the track system, eliminating the need for secondary floor-level components
  • 90° corner provision uses compatible profiles from within the same system, maintaining a consistent bill of materials across standard and corner configurations
  • 2 and 3-track variants share the same core profile set, keeping fabrication inventory lean and procurement straightforward across project types

KS57.1 SL ST

Sash Dimension57 mm (D) x 68 mm (H)
Thermally brokenNo
Glass Thickness38-44 mm
Full hidden DrainageYes
Thermal Insulation Uf1.3 W/m²K
Sound IsolationDesigned for deduction upto 40 db
Rw (C;Ctr)-
STC-
OITC-
Wind Resistance
Tested according EN 122113500 Pa
Classified according EN 12210Class BE 3500
Water Tightness
Tested according EN 1027600 Pa
Classified according EN 12208Class 9A
Air Permeability
Tested according EN 1026600 Pa
Classified according EN 12207Class 4
MaterialAluminium alloy 6063 T6
Size Limitations2500 x 4500 mm

The KS57.1 SL ST [Allure] is a thermally broken, 24.5 mm ultra-slim interlock aluminium sliding door system designed for ultra-premium residential and prestige commercial applications. The system supports up to 5 panels with a maximum individual panel size of 2.50 m (w) × 4.50 m (h) and a panel load-bearing roller capacity of up to 1,000 kg. Glazing is accommodated in DGU and laminated DGU configurations with glass thickness ranging from 38 mm to 44 mm. Wind load capacity is rated up to 3.5 kPa. The system is available in two-track and three-track frame configurations with an integrated stainless steel guiderail and inside lip provision; an optional flyscreen is also available. A 90° corner opening provision enables frameless corner configurations without structural posts. Multiple locking mechanisms are incorporated to deliver the highest available level of security. The thermally broken construction significantly reduces heat transfer and condensation across the system profile.

The KS57.1 SL ST [Allure] is the definitive sliding door solution for large-scale luxury residential developments, high-rise curtain wall applications, and prestige commercial environments where monumental panel scale, thermal performance, ultra-slim sightlines, and supreme structural integrity are non-negotiable.

KS57.1 SL ST

Profile basic depths57 mm
Profile Face Widths68 mm
ALuminium-Systeme

Slimline

Solutions

Design begins with space for creativity, space for comfort and plenty of freedom. Discover the versatility, design freedom and distinctive style that our aluminium profiles make possible. Uniqueness by Kömmerling. Design begins with space for creativity, space for comfort…

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KS57.1 SL ST [Allure]
With concealed slim frames, robust hardware, and large glass panels, the Allure sliding doors exude contemporary elegance. Their clean lines and minimalist design enhance any space, creating a sense of openness.
Product overview

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