BS 7412 specifies requirements for the design, fabrication and performance of windows and glazed doorsets made from PVC-U extruded hollow profiles. It applies to windows and doorsets manufactured from PVC-U hollow profiles incorporating fusion welded corner joints.
BS 7412 applies to windows and doors fabricated into frames in a factory, to be installed vertically (within 15°) into the external face of buildings, as single or multi-light units, in coupled assemblies when appropriate, of the following types:
1. Windows:
a. Hinged: side-hung (open in or out), top-hung (open out), bottom-hung
(open in), tilt and turn or turn before tilt;
b. Projecting: side-hung (open in or open out) and top-hung (open out or
reversible);
c. Pivoted: horizontal and vertical (hung centrally or off-centre)including
reversible;
d. Sliding: horizontal and vertical;
e. Side-hung: fully reversible;
f. Fixed light;
2. Doors:
a. Single leaf single-swing doors with or without side lights and top panels;
b. Double leaf single-swing doors with or without side lights and top panels.
It is applicable 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 within a curtain walling system.
This British Standard supersedes BS 7412:2002, which will be withdrawn in December 2008.
What’s new in?
This is a full revision of the 2002 standard, and introduces the following principal changes:
• Changes to take into account the publication of harmonized European product standard
• Information on how the requirements relate to the European Construction Products Directive.
Contents of BS7412
1. Scope
2. Normative references
3. Terms and definitions
4. Handing
5. Components
6. Appearance and finish
7. Fabrication
8. Glazing
9. Use, cleaning and maintenance
10. Security
11. Safety in case of fire
12. Safety in use
13. Weathertightness
14. Operation and strength characteristics
15. Hygiene, health and the environment
16. Acoustic performance
17. Energy conservation
18. Marking
Annexes
Annex A (informative) Guidance on the evaluation of conformity
Annex B (informative) Durability and recycling
Annex C (normative) Specification for handing
Annex D (normative) Weld test
Annex E (normative) Mechanical joint tests (mullion and transom joints)