British Standard BS 9266:20132018-07-25T09:36:35+00:00

British Standard BS 9266:2013

Design of accessible and adaptable general needs housing – Code of Practice.

The requirements of a dwelling’s occupants can change as a result of accident, illness or ageing, giving rise to reduced mobility or increasing sensory loss. In order to meet these changing requirements, homes need to be accessible and adaptable; accessible for both visitors and residents and adaptable to meet residents’ changing needs both temporary and longer term.

The standard outlines recommendations for design features which can be incorporated when the dwelling is first built, or have provision made at the outset for their future adaptation. This helps reduce the need for expensive or disruptive alterations or substantial adaptations in the future.

This British Standard gives recommendations for methods of selection, planning, installation and maintenance for both stair nosings and barrier matting. Gradus advice and recommendations are shown in blue text.

Guidance on Stair Nosings

6 External access routes

6.8 Steps on access routes

6.8.1 Stepped access routes to individual houses

All step nosings should incorporate a permanently contrasting continuous material for the full width of the stair on both the tread and the riser. The material should contrast visually with the remainder of the tread and riser [1].

[1] All Gradus stair edging colours have been measured to provide Light Reflectance Values (LRVs)* in order to provide the specifier with information to ensure that suitable contrast is achieved with the surrounding stair material. PVC-u Hardnose stair edgings can provide an ideal solution for internal applications as channel and insert colours can be matched to contrast with the tread and riser. *These values have been determined using the CIE Y value, in accordance with BS 8493:2008+A1:2010.

NOTE 2 A contrasting nosing at the junction between tread and riser might assist people with a visual impairment.

NOTE 3 Further information on the design of steps, and on visual contrast, refer to BS 8300:2009+A1:2010
(Standard has since been updated to BS 8300-2:2018)

6.8.2 Stepped access routes to blocks of flats

All step nosings should incorporate a permanently contrasting continuous material for the full width of the stair on both the tread and the riser, to help people with a visual impairment appreciate the extent of the stair and identify individual treads[1].

[1] All Gradus stair edging colours have been measured to provide Light Reflectance Values (LRVs)* in order to provide the specifier with information to ensure that suitable contrast is achieved with the surrounding stair material. PVC-u Hardnose stair edgings can provide an ideal solution for internal applications as channel and insert colours can be matched to contrast with the tread and riser *These values have been determined using the CIE Y value, in accordance with BS 8493:2008+A1:2010.

The material should be 50 mm to 65 mm wide on the tread and 30 mm to 55 mm on the riser, and should contrast visually with the remainder of the tread and riser[2].

[2] The profile dimensions stated are guidance only and other factors should be taken into consideration when specifying stair edgings such as step dimension and type and frequency of traffic. However, a large proportion of Gradus stair edgings fall between these dimensions stated, including the XT range for internal use and the TEX range of heavy duty stair edgings suitable for external use.

The whole tread and the nosing should incorporate a slip-resistant material, starting as close as practicable to the front edge of the nosing and extending the full width and depth of the tread[3].

[3] Gradus offer a Heavy-Duty Stair & Floor system suitable for heavy traffic exterior and interior environments. The system features stair edgings and tread plates for use on stairs and sheet material for use as a floorcovering on landings and walkways to help reduce the risk of slips and trips in the most demanding environments.

NOTE 1 A proprietary nosing can provide a durable solution that satisfies both visual contrast and slip resistance criteria (see BRE IP 15/03 [12]).

NOTE 2 Further information on slip resistance is given in BS 8300:2009+A1:2010
(Standard has since been updated to BS 8300-2:2018)

8 Communal areas within blocks of flats

8.2 Design of common steps and stairs

The design of common steps and stairs should conform to 6.8.2

Guidance on light reflectance values

8.5 Visual contrast between surfaces or building elements

Differences in light reflectance value (LRV) should be used to assess the degree of visual contrast between surfaces such as floors, walls, doors and ceilings, and between key fittings/fixtures and surrounding surfaces.

NOTE Relevant LRV differentials and methods of LRV measurement are provided in BS 8300:2009+A1:2010, Annex B.
(Standard has since been updated to BS 8300-2:2018)

Visual contrast is used to indicate the visual perception of one element of the building, or fitting within the building, against another to ensure the difference in light reflectance value between the two surfaces is greater than 30 points. All Gradus stair edging colours have been measured to provide Light Reflectance Values* in order to provide the specifier with information to ensure that suitable contrast is achieved with the surrounding stair material. *These values have been determined using the CIE Y value, in accordance with BS 8493:2008

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