Optio 58BW ST HI Steel Replacement

Description

Minimal, durable, secure.

The look of steel, the benefits of aluminium. A win-win for designers and homeowners alike. Featuring industry leading build quality, our 58BW ST HI aluminium windows are an ideal replacement for existing steel windows. In addition to impressive high thermal and acoustic performance, the design also replicates the minimal sight lines associated with steel windows, whilst providing superior performance and security. Yet another win-win.

58BW ST HI Data sheet

The 58BW ST offers exceptional performance, with impressively low U-values of just 1.5 Uw for double glazing and 1.2 Uw for triple glazing.

Click this link to access the NBS Chorus page for this product and specify it for your project:

NBS 58BW ST HI

OVERVIEW
TECHNICAL DATA HI
CROSS SECTIONS

Design features

Certified under the Secured By Design scheme
Tested to PAS 24
Green guide rated A
Integrated deep head profiles for ease of trickle ventilation
Unique polyamide thermal break design to improve thermal performance

Options

58mm or 70mm frame depth to accommodate varying types of applications
Internally or externally glazed
Glazing 24mm – 32mm**
Available for Lifetime Homes (LFT)
Available in a range of single or dual colour and anodised finishes
Available in the following aesthetics: Putty Line, Stepped Edge, Square, Exterior Glazed Chamfer
Available in the following configurations: top hung, bottom hung, side hung, fixed light, and multilight.

_{** Glazing thickness: Other thicknesses may be possible dependant on profile combinations specified. Fabricators should refer to AluK technical manual glazing section for details.}

	58BW ST
Performances
U value W/m²K (Double glazing) :	1.4 W/m²K
U value W/m²K (Triple glazing) :	1.1 W/m²K
Window energy rating :	A - B
BRE Green Guide rating :	A rated
Air tightness (Pa) :	Class 4 (600pa)
Water tightness (Pa) :	Class E1500 (1500pa)
Security PAS 24 :	X
Certifications :	X
Secured by design :	X
Configurations
Opening :	open out
Top hung :	X
Side hung :	X
Bottom hung :	X
Fixed Light :	X
Multi light :	X
Size limits
Top hung (max weight) :	40kg
Side hung (max weight) :	24kg
Bottom hung (max weight) :	45kg
Fixed light (max weight) :	250kg
Features
Frame depth :	58mm & 70mm
Dual color option :	X
Multi-point locking :	X
Glazing options :	Internal & External
Glazing thickness :	24mm-32mm
Sightline (Frame to Vent) :	66mm
Sightline (Vent to Mullion) :	81mm
Sightline (Fixed Light) :	43mm