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58BW FLUSH HI – ALUK

Geometry system

Depth: 70mm

Thermal performance

Uw (double glazing) 1.4W/m²K
Uw (triple glazing) 1.2 W/m²K

Maximum Glass Thickness

24mm-40mm

Acoustic Performance

42 dB

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Description

Enjoy a seamless blend of style and performance with the AluK 58BW Flush HI window. Designed with clean, flush lines and slim sightlines, it delivers a modern aesthetic without compromising on durability or weather resistance. Built on the proven 58BW HI system, it offers enhanced thermal efficiency, versatility, and high levels of security.

With its perfectly flush finish and contemporary appearance, the 58BW Flush HI is an ideal choice for both new build and refurbishment projects. A variety of sash options and flexible configurations allow you to achieve a refined, minimalist look tailored to any design.

Flush Innovation

Advanced Weather Protection

With smart features like the double rebate and friction stays on side-hung windows, the 58BW Flush HI offers greater protection against bad weather, even in more exposed locations.

Improved Thermal Performance

The thermally-broken design offers low U-Values down to 1.2 W/m2K, and a Window Energy Rating (WER) of B for higher energy-efficiency.

Slimmer Sightlines

The 58BW Flush HI has a slim 45mm sash that creates desirable slim sightlines for a minimal, contemporary look.

More Design Choice

The flush shadow line can be complimented with a choice of flat, putty line or stepped edge vent styles to suit the property.

Safe and Secure

Fully test to PAS 24 and certified under the Secured by Design scheme, the 58BW Flush HI meets all safety standards for complete peace of mind.

Configuration Options

The distinctive shadow line of the 58BW Flush HI can be achieved with a range of open-out sash options, including French casement, top-hung, and side-hung windows. Fixed lights can also replicate this flush appearance by incorporating dummy sashes, ensuring a consistent aesthetic across the entire installation.

A flush finish can also be extended to bay window designs. Using dedicated bay poles for various angles and corner posts for 90° configurations, the system allows you to maintain a clean, uniform look even in more complex window arrangements.

Configurations Options

TECHNICAL DATA:

Performances
U value W/m²K (Double glazing) :	1.4 W/m²K
U value W/m²K (Triple glazing) :	1.2 W/m²K
Window energy rating :	B – C
BRE Green Guide rating :	A rated
Air tightness (Pa) :	Class 4 (600pa)
Water tightness (Pa) :	Class 9A (600pa)
Wind load (Pa) :	Class E2400 (2400pa)
Security PAS 24 :	✅
Certifications :	✅
Configurations
Opening :	open-out
Top hung :	✅
Side hung :	✅
Bottom hung :	✅
Dummy sashes	✅
Multi light :	✅
French Casement:	✅

Top hung (max weight) :	180kg
Side hung (max weight) :	55kg


Glazing
Glazing Options	Internal & External
Glazing Thickness:	24mm-40mm
System features:
Single Colour	✅
Dual Colour	✅
Textured Finish	✅
Anodised Finish	✅