BS 4873:2016 PDF

1   Scope This British Standard specifies requirements for the design, construction and performance of aluminium alloy windows and external pedestrian doorsets, thermally or non-thermally improved, including constituent materials and glazing. This British Standard does not apply to composite doorsets as defined in BS 8529, but it does cover doorsets that are predominantly aluminium framed (stile and rail construction) with replaceable composite panels. This British Standard applies to windows and doorsets fabricated in a factory, to be installed vertically (±15°) into the external face of buildings, as single or multi-light units, or in coupled assemblies where appropriate, of the following types:

a) windows:

1. hinged: side-hung, top-hung, bottom-hung, tilt before turn or turn before tilt;

2. projecting: side-hung and top-hung (including reversible windows);

3. pivoted: horizontal and vertical;

4. sliding: horizontal and vertical (including tilting-in sash to vertical);