NBS Source
I'm a manufacturer

Compare variants

Secco OS2 Windows - Slimline Heritage Windows
Secco OS2 Windows - Slimline Heritage Windows
Secco OS2 Windows - Slimline Heritage Windows

Verified 4 days ago

BM Architectural

Verified 4 days ago

BM Architectural

Verified 4 days ago

BM Architectural
Summary
Slimline heritage windows offering vintage appeal with modern thermal, acoustic and security performance.
-
-
Application

Heritage home renovations and listed properties: Perfect for restoring windows in Victorian, Edwardian, or Georgian residences, where the slim steel profiles mimic original ironwork to satisfy conservation authorities, as seen in projects like the Gallerie dell’Accademia in Venice.

 

Period domestic extensions or conservatories: Suited for adding or replacing glazing in traditional family homes, creating light-filled indoor-outdoor spaces like winter gardens or orangery links. The customizable brass or Corten finishes evoke artisanal craftsmanship, while the quiet, barrier-free operation supports everyday use in characterful settings.

 

Boutique hospitality in historic districts: In small luxury guesthouses, cafes, or boutique hotels within conservation areas such as the Cotswolds, the OS2 system frames views without overwhelming delicate architecture. Its corrosion-resistant materials and high security make it durable for public-facing heritage sites, blending subtle elegance with practical performance.

 

Rural or coastal period retreats: In restored farmhouses, cottages, or seaside villas, the robust yet refined profiles withstand environmental exposure, with oxidised Corten options adding a weathered patina that complements traditional stone or brickwork. It's especially valuable for large openings in exposed locations, providing superior weatherproofing and insulation for year-round usability.

-
-
Description

Slimline heritage windows offering vintage appeal with modern thermal, acoustic and security performance.

  • OS2 65: for windows with a glass thickness 24–35 mm
  • OS2 75: for windows with a glass thickness 35–46 mm.
  • OS2 85: for windows with a glass thickness 46–54 mm.

Features and benefits:

  • Matching range of doors available for design continuity, specified separately.
  • Features slender profiles, slim sight lines and clean, sharp edges.
  • Enhances the look of a wide range of applications, from architecturally ambitious new-build construction to period property renovations.
  • In addition to enhancing energy efficiency, these systems can also contribute to the conservation of the local built environment.
  • Suitable for renovating older buildings, they are more sympathetic to the character, charm and architectural style of heritage or listed properties than more modern glazing options.  
  • Maximizes the natural light entering a property and the feeling of space, helping to create safer, more comfortable and inspiring environments.
-
-
Color
Silver, Brown, Clear, Grey, Other, Black, Bronze, Cream, Gold, White
-
-
Finish
Galvanized, Weathered, Satin, Polished, Burnished, Blackened, Brass, Bronze, Matt, Metallic, Painted, Stainless steel, Zinc plated, Other
-
-
Material
Steel, Stainless steel, Carbon steel, Cor-Ten, Brass
-
-
Shape
Rectangle, Square, Other
-
-
Length
65 mm, 75 mm, 85 mm
-
-
Width
Bespoke
-
-
Height
Bespoke
-
-

Specification

Classification data
Standard
To EN 14351-1:2016.
-
-
Dimensions and configurations
-
-
-
Product performance
-
-
-
Weather performance
-
-
-
Air permeability
To EN 12207, Class 4.
-
-
Watertightness
To EN 12208, Class 6A.
-
-
Resistance to wind load
To EN 12210, Class C5.
-
-
Safety
-
-
-
Security level
Not applicable.
-
-
Environmental
-
-
-
Acoustic performance rating
Manufacturer's standard.
-
-
Thermal
-
-
-
Whole window U-value
Manufacturer's standard.
-
-
Frame
-
-
-
Profile
-
-
-
Material
As Colour.
-
-
Finish as delivered
-
-
-
Coating
Not applicable., Powder coating., Liquid coating.
-
-
Colour
Satin Brass., Patinated Brass (Architectural Bronze)., Corten., Stainless Steel., Burnished Stainless Steel (darkened Stainless Steel)., Painted galvanized steel - Black RAL 9005 Matt., Painted galvanized steel - Black RAL 9005 Semi-gloss., Painted galvanized steel - Graphite Grey RAL 7024 Matt., Painted galvanized steel - Graphite Grey RAL 7024 Semi-gloss., Painted galvanized steel - Anthracite Grey RAL 7016 Matt., Painted galvanized steel - Anthracite Grey RAL 7016 Semi-gloss., Painted galvanized steel - Cream White RAL 9001., Painted galvanized steel - Traffic White RAL 9016., Painted galvanized steel - Pure White RAL 9010., Painted galvanized steel - RAL colour.
-
-
Film thickness (minimum)
Manufacturer's standard where applicable.
-
-
Ventilator
-
-
-
Glazing or infill
-
-
-
Requirements
-
-
-
Hardware
-
-
-
Operation
Manual.
-
-
Fixing features
Manufacturer's standard.
-
-

Additional properties

Beading
Squared., Triangular., Thin., Gothic., Bevelled., Recessed.
-
-

Sustainability data

Material
Steel, Stainless steel, Carbon steel, Cor-Ten, Brass
-
-