Requirement K4: Protection against impact with glazing

  1. Requirements

    Requirements

    Requirement Protection against impact with glazing K4.—Glazing, with which people are likely to come into contact whilst moving in or about the building shall: (a) if broken on impact, break in a way which is unlikely to cause injury; or (b) resist impact without breaking; or (c) be shielded or protected from impact. Limits on application Performance In the Secretary of State’s view, you can meet requirement K4 if you adopt, in critical locations, one of the following approaches. a. Measures to limit the risk of cutting and piercing injuries by the use of glazing that is reasonably safe, such that, if breakage did occur, any particles would be relatively harmless. b. Use of glazing sufficiently robust to ensure that the risk of breakage is low. c. Steps are taken to limit the risk of contact with the glazing. Impacts with glazing, particularly glazing in doors and door side panels, and at low level in walls and partitions, can result in cutting and piercing injuries. For doors and door side panels, the risk is greatest for glazing between floor and shoulder level when near to door handles and push plates, especially when normal building movement causes doors to stick. Hands, wrists and arms are particularly vulnerable. An initial impact at between waist and shoulder levels can be followed by a fall through the glazing, resulting in additional injury to the face and body. In walls and partitions, away from doors, the risks relate predominantly to glazing at low level. At that level, children are especially vulnerable.

    • Diagram 1.1 Measuring rise and going Part K Diagram 1.1 Measuring rise and going Part K (Risers and Goings)
    • [caption id="attachment_8489" align="alignnone" width="935"]Diagram 1.2 Examples of suitable tread profiles Diagram 1.2 Examples of suitable tread profiles Part K

    • Diagram 1.3 Minimum headroom Part K Diagram 1.3 Minimum headroom Part K
    • Diagram 1.4 reduced headroom for loft conversions Part K Diagram 1.4 reduced headroom for loft conversions Part K
    • Diagram 1.5 dividing flights Part K Diagram 1.5 dividing flights Part K
    • Diagram 1.6 Change of direction in flights Part K Diagram 1.6 Change of direction in flights Part K
    • Diagram 1.7 Cupboard onto landing Part K Diagram 1.7 Cupboard onto landing Part K
    • Diagram 1.8 Landings next to doors in dwellings Part K Diagram 1.8 Landings next to doors in dwellings Part K
    • Diagram 1.9 Measuring tapered treads Part K Diagram 1.9 Measuring tapered treads Part K
    • Diagram 1.10 Alternating tread stair Part K Diagram 1.10 Alternating tread stair Part K
    • Diagram 1.11 Key dimensions for handrails for common stairs in blocks of flats Part K Diagram 1.11 Key dimensions for handrails for common stairs in blocks of flats Part K
    • Diagram 1.12 Key dimensions for handrails for stairs in buildings other than dwellings Part K Diagram 1.12 Key dimensions for handrails for stairs in buildings other than dwellings Part K
    • Diagram 1.13 Handrail design Part K Diagram 1.13 Handrail design Part K
    • Diagram 2.1 Relationship of ramp gradient to the going of a flight Part K Diagram 2.1 Relationship of ramp gradient to the going of a flight Part K
    • Diagram 2.2 ramp design Part K Diagram 2.2 ramp design Part K
    • Diagram 3.1 Guarding design Diagram 3.1 Guarding design
    • Diagram 3.2 Typical Locations for guarding Part K Diagram 3.2 Typical Locations for guarding Part K
    • Diagram 4.1 Barrier siting Part K Diagram 4.1 Barrier siting Part K
    • Diagram 4.2 barrier design Part K Diagram 4.2 barrier design Part K
    • Diagram 4.3 Loading bay Part K Diagram 4.3 Loading bay Part K
    • Diagram 5.1 Critical glazing locations in internal and external walls Part K Diagram 5.1 Critical glazing locations in internal and external walls Part K
    • Diagram 5.2 Annealed glass thickness and dimension limits Diagram 5.2 Annealed glass thickness and dimension limits Part K
    • Diagram 5.4 Permanent screen protection Part K Diagram 5.4 Permanent screen protection Part K
    • Diagram 6.1 Marking by a barrier Part K Diagram 6.1 Marking by a barrier Part K
    • Diagram 6.2 Marking by a surface Part K Diagram 6.2 Marking by a surface Part K
    • Diagram 7.1 Examples of door height glazing not warranting manifestation Part K Diagram 7.1 Examples of door height glazing not warranting manifestation Part K
    • [caption id="attachment_8468" align="alignnone" width="933"]Diagram 7.2 Height of manifestation for glass doors and glazed screens Part K Diagram 7.2 Height of manifestation for glass doors and glazed screens Part K[/caption]

    • Diagram 8.1 Height of controls Part K Diagram 8.1 Height of controls Part K
    • Diagram 9.1 Safe reaches for cleaning Part K Diagram 9.1 Safe reaches for cleaning Part K
    • Diagram 9.2 Ladders a maximum of 6m long Part K Diagram 9.2 Ladders a maximum of 6m long Part K
    • Diagram 9.3 Ladders a maximum of 9m long Diagram 9.3 Ladders a maximum of 9m long
    • Diagram 10.1 Visibility requirements of doors Part K Diagram 10.1 Visibility requirements of doors Part K
    • Diagram 10.2 Avoiding doors on acces routes Part K Diagram 10.2 Avoiding doors on access routes Part K
    • Table 1.1 Rise and Going Part K Table 1.1 Rise and Going Part K risers and goings