Verified by manufacturer 4 days ago
OS2 65 vertical pivot window
Slimline heritage windows offering vintage appeal with modern thermal, acoustic and security performance.
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.
Slimline heritage windows offering vintage appeal with modern thermal, acoustic and security performance.
Features and benefits:
Color | Silver Brown Clear Grey Other |
Finish | Galvanized Weathered Satin Polished Burnished |
Material | Steel Stainless steel Carbon steel Cor-Ten Brass |
Shape | Rectangle Square Other |
Length | 65 mm 75 mm 85 mm |
Width | Bespoke |
Height | Bespoke |
Uniclass | |
CAWS | L10/33 Proprietary windows L10/390 Proprietary windows L10/20 Steel windows L10/310 Steel windows |
Classification data | |
Standard | To EN 14351-1:2016. |
Dimensions and configurations | Guidance for specification option: Consult manufacturer for options and insert requirements; configuration options will vary depending on variant required. Options: Curved head, Gothic Arch, Curved on plan, Raked Head. Manufacturer guidanceInclude drawing and/ or schedule reference as required. Maximum visible frame width of 62 mm (external - central node(s); lateral nodes are 47 or 27 mm); dimensions depend on configuration required. |
Product performance | |
Weather performance | |
Air permeability | To EN 12207, Class 4. Manufacturer guidanceMaximum certified performance. |
Watertightness | To EN 12208, Class 6A. Manufacturer guidanceMaximum certified performance. |
Resistance to wind load | To EN 12210, Class C5. Manufacturer guidanceMaximum certified performance. |
Safety | |
Security level | Not applicable. |
Environmental | |
Acoustic performance rating | Manufacturer's standard. Manufacturer guidanceConsult manufacturer for details. |
Thermal | |
Whole window U-value | Manufacturer's standard. Guidance for specification option: Consult manufacturer for details. |
Frame | |
Profile | Guidance for specification option: Consult manufacturer for options and insert requirements. Manufacturer guidance65 mm deep. |
Material | As Colour. Manufacturer guidanceAlso available in brass, consult manufacturer for details. |
Finish as delivered | |
Coating | Not applicable. Guidance for specification option: Corten steel and stainless steel frames only. Powder coating. Guidance for specification option: Galvanized steel frames only. Liquid coating. Guidance for specification option: Galvanized steel frames only. |
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. Guidance for specification option: Consult manufacturer and insert colour requirements. Specialist colours available on request. |
Film thickness (minimum) | Manufacturer's standard where applicable. |
Ventilator | Guidance for specification option: Consult manufacturer for options and insert requirements, or omit. |
Glazing or infill | |
Requirements | Guidance for specification option: Insert requirements, 24–35 mm. |
Hardware | Guidance for specification option: Consult manufacturer for options and insert requirements. They are available in the same range of finishes as the profiles to ensure design continuity. |
Operation | Manual. |
Fixing features | Manufacturer's standard. |
Beading | Squared. Triangular. Thin. Gothic. Bevelled. Recessed. Manufacturer guidanceConsult manufacturer for details. |
Material | Steel Stainless steel Carbon steel Cor-Ten Brass |