W40 steel profiles: An ideal match for modern living

A W40 window installation by Associated Steel Window Services

Versatile W40 window profiles, specifically developed by the Steel Window Association (SWA) for its members, are a stylish and modern solution designed to suit both new-build and refurbishment applications. While the classic W20 section continues to be preferred by conservationists and many property owners for early 20th century and older properties, W40 exemplifies how steel fenestration systems have kept pace with modern tastes and technical demands while retaining key attributes such as strength and excellent daylight transmission, the SWA has argued.

Today’s W40 profiles, manufactured using hot-rolled steel, provide greater flexibility than their predecessors and are able to accommodate thicker double or even triple glazing units. They are also capable of creating larger window openings without coupling individual frames together.

Doors manufactured using W40 profiles and featuring double or triple glazing can achieve very good thermal performance, while further providing excellent security. Multipoint locking can be added as an option.

The preferred insulated glass unit for a building-regulation-compliant W40 steel windows now features a 4-8-4-8-4mm construction, with two soft-coat Low-E panes plus warm edge spacer bars and argon gas filling. They can also contain acoustic glass, making W40 designs ideal for inner-city areas where noise pollution is a common issue.

W40 profiles can be used to fabricate a wide variety of opening formats, including multi-leaf folding/stacking doors, in a full selection of RAL colours.
The SWA offers UK-wide coverage with member companies able to carry out a full range of contracts, from the repair and restoration of heritage windows through to the installation of major fenestration packages in contemporary commercial, residential and other types of developments.

The SWA represents steel window manufacturers, from expert restorers working with heritage bodies and local conservation officers to large companies producing W40 frames for commercial offices and leisure destinations as well as modern apartment blocks, schools, hospitals and other public buildings.For more information about the Steel Window Association or to enquire about becoming a member, visit steel-window-association.co.uk.

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