BS 4873:2009 Aluminium alloy windows and doorsets. Specification
BS 4873 specifies requirements for the design, construction and performance of aluminium alloy windows and glazed doorsets. It specifically applies to those which are solid or thermally improved, and intended to be installed vertically (±15°), including constituent materials and glazing.
BS 4873 applies to windows and doorsets fabricated in a factory, which can be in single or multi-light form, in coupled assemblies where appropriate, of the following types:
• Windows
o Hinged: side-hung (open in or out), top-hung (open in or out), bottom-hung (open in or out), tilt before turn or turn before tilt
o Projecting: side-hung (open out or reversible) and top-hung (open out or reversible)
o Pivoted: horizontal and vertical (hung centrally or off-centre including reversible)
o Sliding: horizontal and vertical (including tilting-in sash to vertical)
o Fixed lights;
o Louvred: adjustable;
• Doorsets:
o Single leaf single-swing doors (open in or out) with or without side lights and top panels
o Double leaf single-swing doors (open in or out) with or without side lights and top panels
o Single track sliding doors
o Single track sliding folding doors.
It applies to assemblies in which any frame member is not longer than 3 m.
It does not apply to curtain walls that span across horizontal structural members of floors but is applicable to windows fitted within a curtain walling system.
It does not apply to:
• Secondary windows applied to convert existing single windows into double or coupled windows
• Windows with frames designed to be glazed with security glazing conforming to BS 5544, BS EN 356 or BS EN 1063
• Commercial style single- or double-swing doorsets using floor springs or concealed overhead closers or suspended sliding doors with overhead operating mechanisms.
Contents of BS 4873:
- Scope
- Normative references
- Terms and definitions
- Handing
- Components
- Construction and design
- Glazing
- Use, cleaning and maintenance
- Security
- Safety in case of fire
- Safety in use
- Weathertightness
- Operation and strength characteristics
- Hygiene, health and the environment
- Acoustic performance
- Energy conservation
- Marking
- Guidance on the evaluation of conformity
- Durability and recycling
- Specification for handing
- Bibliography
- UK drawing conventions for window and door types
