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W20 Steel Window - Steel window

Verified by manufacturer 2 months ago

W20 Window Fixed Light

Clement Windows Group Variant:
Third party certifications:
  • Constructionline

    Constructionline

    Certificate type

  • CHAS

    CHAS

    Certificate type

  • ISO 9001 Quality Management

    Certificate type

  • Constructionline Gold

    Constructionline Gold

    Certificate type

  • ISO 14001 Environmental Management Systems

    Certificate type

Traditional steel window.

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+44 (0)1428 643393 Website

Application

W20 steel windows may be used in all types of building where strong, durable frames, efficient opening casements and hard wearing fittings are required

Description

A traditional, tried and tested robust window, designed in the 1960s, but still in demand today.

W20 steel windows may be used in all types of building where strong, durable frames, efficient opening casements and hard wearing fittings are required. The W20 metal window range is available with multi point locking or traditional single point locking, for security in conservation areas.


Features and benefits:

  • Insulated glass units up to 16 mm
  • Building Regulations Approved Document L compliant
  • Available with multi point locking to PAS 24 or traditional single point locking
  • Various glazing options
  • Supplied shaped, with shaped heads, or ‘curved on plan’.


General information

Color

Black

Grey

White

Other

Clear

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Manufacturer guidance

Hot dip galvanized and available in a wide choice of highly durable Akzo Nobel powder paint RAL colours.

Finish

Powder-coated

Matt

Gloss

Galvanized

Semi-gloss

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Manufacturer guidance

Polyester powder coating available in three options: matt, semi-gloss and full gloss.

Material

Steel

Shape

Circle

Triangle

Square

Rectangle

Other

Guidance for specification option:

Curved on plan, curved on elevation and various shaped heads.

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Length

Bespoke

Manufacturer guidance

See individual variants for min/ max sizes.

Width

Bespoke

Manufacturer guidance

See individual variants for min/ max sizes.

Height

Bespoke

Manufacturer guidance

See individual variants for min/ max sizes.

Warranty description

One year

Guidance for specification option:

Should any material fault appear in a window fitting (handle, stay, locking mechanism etc) sold and installed by us within one year from the date of installation, Clement Windows Ltd will (at its sole discretion) repair or replace the faulty materials.

Five year

Guidance for specification option:

Should any material fault appear in a sealed double glazed glass unit sold and installed by us within five years from the date of installation then:-

• within the first 12 months from the

date of installation, Clement Windows Ltd

will (at its sole discretion) repair

or replace the faulty materials; or,

• thereafter supply replacement materials

free of charge.

Ten year

Guidance for specification option:

Should any material fault appear in any window frame or door frame sold and installed by us within ten years from the date of installation because of defective materials or workmanship then:-

• within the first 12 months from the

date of installation, Clement Windows Ltd

will (at its sole discretion) repair

or replace the faulty window frame or

door frame; or,

• thereafter supply replacement materials

free of charge.

Manufacturer guidance

Subject to our Terms and Conditions, copy available upon request.

Uniclass

Pr_30_59_98_83 Steel window unitsPrimary

CAWS

L10/20 Steel windows

L10/310 Steel windows

Specification data - Steel window units

Dimensions and configurations

Fixed light.

Product performance

-

Weather performance

-

UK exposure category

To BS 6375-1, 2400 Pa.

Air permeability

600 Pa.

Watertightness

300 Pa.

Resistance to wind load

2400 Pa.

Safety

-

Security level

To PAS 24.

Environmental

-

Acoustic performance rating

28 (-1; -3) dB.

Frame

-

Profile

-

Manufacturer guidance

Various options are available, consult manufacturer for details and insert requiremetns.

Material

Carbon steel.

Finish as delivered

-

Coating

Hot-dipped galvanized to BS EN ISO 1461.

Powder coating to BS EN 13438.

Colour

Deep Black, RAL9005, matt.

Deep Black, RAL9005, semi-gloss.

Graphite Grey, RAL7024, matt.

Graphite Grey, RAL7024, semi-gloss.

Anthracite Grey, RAL7016, semi-gloss.

Cream White, RAL9001, matt.

Traffic White, RAL9016, matt.

Traffic White, RAL9016, semi-gloss.

Pure White, RAL9010, semi-gloss.

RAL colour.

Guidance for specification option:

  • From the Akzo Nobel powder paint RAL colour range, exceeding the minimum paint thickness over the zinc of 60 microns.
  • Consult manufacturer and insert requirements.

Specialist colour.

Guidance for specification option:

  • Specialist colours available e.g. metallic.
  • Cost and lead times vary.
  • Consult manufacturer and insert requirements.

Film thickness (minimum)

>100 micrometres.

Glazing or infill

-

Requirements

16 mm insulating glass units.

Guidance for specification option:

W20 can be supplied if required with various glazing options, from both inside or outside including:

  • Clear glazing
  • Genuine T bars
  • Leaded lights, using real lead that is soldered by hand in a diamond or rectangular pattern in variable widths of lead
  • G+, no grille in cavity

Consult manufacturer for details and insert requirements.

Single pane.

Manufacturer guidance

W20 windows are available as single or insulated glass units up to 16 mm. When working on highly sensitive, Listed Buildings there is an option for outside single glazing with either putty or silicone fronting. All opening vents are weather sealed using EDPM.


In accordance with Glass & Glazing Federation best practice, Clement steel windows are factory glazed, however, concealed fixings mean that fixed light windows need to be glazed on site after the frames have been installed. Glazing beads are made of aluminium or glass reinforced plastic (GRP).


Windows can be supplied shaped, with shaped heads, and ‘curved on plan’.

Hardware

Trickle vents.

Restrictor.

Single point locking handle.

Guidance for specification option:

A range of handles are available, consult literature for details and insert requirements.

Multi-point locking handle.

Guidance for specification option:

A range of handles are available, consult literature for details and insert requirements.

Pegstay.

Guidance for specification option:

A range of pegstays are available, consult literature for details and insert requirements.

Fixing features

Can be fitted into timber subframes, or direct to brickwork, concrete or stone. Windows. Installed using fixing lugs or direct fixing stainless steel screws.

Window shape

Circle.

Triangle.

Square.

Rectangle.

Profile

Curved on plan.

Curved on elevation.

Shaped heads.

Guidance for specification option:

Various shaped heads available. Consult manufacturer and insert requirements.

Manufacturer guidance

Glazing profile.

Width

300–3000 mm.

Manufacturer guidance

Minimum–maximum width. Insert requirements.

Height

300–3000 mm.

Manufacturer guidance

Minimum–maximum height. Insert requirements.

Perimeter

9200 mm.

Manufacturer guidance

Maximum perimeter. Insert requirements.

Sustainability data

Contains Red List materials

No

Manufacturer guidance

Lead if used in light glass units.

Country of material origin

Switzerland

Manufacturer guidance

The country of origin of our hot rolled window sections is Switzerland.

70-80% of the raw material is from Switzerland and 20-30% comes from Italy.

Country of product manufacture

Poland

Recyclability

100

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

90 %

Third party certifications

Constructionline

Constructionline

Constructionline GOLD

CHAS

CHAS

CHAS

ISO 9001 Quality Management

ISO 9001 Quality Management

ISO 9001

Constructionline

Constructionline

SSIP Acclaim

Constructionline Gold

Constructionline Gold

Social Value

ISO 14001 Environmental Management Systems

ISO 14001 Environmental Management Systems

ISO 14001:2015

Literature

Clement W20 technical specification

Clement W20 technical specification

Steel window and door brochure

Steel window and door brochure

Case studies

New Clement W20 steel windows for Grade II* listed Town Hall

New Clement W20 steel windows for Grade II* listed Town Hall

College’s striking fenestration replicated with new Clement W20 steel windows

College’s striking fenestration replicated with new Clement W20 steel windows

Bonhams Auction House bids…and buys steel windows from Clement!

Bonhams Auction House bids…and buys steel windows from Clement!

19th century restored church transformed into 5 unique luxury homes with new Clement steel windows and rooflights

19th century restored church transformed into 5 unique luxury homes with new Clement steel windows and rooflights

New steel windows for a much loved theatre

New steel windows for a much loved theatre

New Clement steel windows preserve the beauty of historic buildings in Birmingham’s former Gun Quarter

New Clement steel windows preserve the beauty of historic buildings in Birmingham’s former Gun Quarter

New Clement steel windows for site of national architectural importance

New Clement steel windows for site of national architectural importance

Over two hundred new steel windows manufactured for Grade II listed Town Hall

Over two hundred new steel windows manufactured for Grade II listed Town Hall

Multiple Listed Buildings at historic site revived using Clement steel windows

Multiple Listed Buildings at historic site revived using Clement steel windows

Stunning Gothic style building rejuvenated with EB24 steel windows

Stunning Gothic style building rejuvenated with EB24 steel windows

New steel windows for Grade II listed former Police HQ now home to the YMCA

New steel windows for Grade II listed former Police HQ now home to the YMCA

New metal windows for Norwich Town Hall

New metal windows for Norwich Town Hall

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