(4 credits available)
To encourage the provision of lighting that allows asset users to have an appropriate level of control.
Are there lighting controls in relevant occupied space that allow control by asset users?
|Credits||Answer||Select a single answer|
|0||A||Question not answered|
|2||C||Yes, in ≥ 50% of relevant occupied space|
|4||D||Yes, in ≥ 80% of relevant occupied space|
|Criterion||Assessment criteria||Applicable answer|
|1||Credits are awarded based on the percentage of occupied space (weighted by floor area) that contains compliant lighting controls (see Methodology).||C-D|
|2||Light switches or controls for each occupied space or lighting zone must be able to be accessed and operated by the asset users occupying that space or zone. Controls must be located in the immediate vicinity of the zone or space they control.||C-D|
Zoning of lighting controls is required for the following relevant occupied space:
In the following spaces, control can be from a single location within the space (e.g. a supervisor’s workstation):
The following internal areas are excluded from the lighting zone requirements:
|4||Small rooms or spaces that are less than 25m² that do not require any subdivision of lighting zones or control will meet the zoning criteria by default.||C-D|
|5||The limit of four workstations per zone in office areas is not a fixed requirement and is an indication of the required performance. Where the adopted lighting strategy exceeds the limit, compliance can be demonstrated if, using the Assessor’s best judgement, it achieves the aim of the issue, i.e. where the zoning and control of lighting enables a satisfactory level of occupant control over lighting in their work area. This may include the provision of individual task lighting, e.g. desk lamps.||C-D|
|6||For occupied spaces that are not listed in the above criteria, the Assessor can exercise an element of judgement when determining whether what is specified is appropriate for the space, given its end use and the aim of the issue.||C-D|
|Asset type specific|
Areas used for teaching, seminar or lecture purposes must have lighting controls specified in accordance with the size and use of the space. For teaching spaces, controls are easily accessible to the teacher while teaching and on entering or leaving the teaching space. A typical auditorium or lecture theatre with stepped seating and a formal lectern or demonstration or performance area would typically be expected to have lighting controls as follows: a) Full lighting. b) Reduced lighting (to be considered the primary setting). c) Audience area lighting reduced to a low level and demonstration area lighting off (for video/image projection but allowing audience to take notes). d) All lighting off (for projection of specific content and for visual demonstrations). e) Separate localised lectern lighting (if present).
Calculating the percentage of relevant occupied space with compliant zoning of lighting controls
Where zoning of lighting controls is not provided in all relevant occupied space as stipulated in the criteria, a reduced number of credits can still be achieved where ≥ 50% of relevant occupied spaces contain compliant zoning of lighting controls. This is based on floor area as follows:
Percentage of relevant occupied space with compliant lighting controls =
For example, for an asset with a total net internal area for all relevant occupied space of 1,000m2 , at least 500m2 of net internal floor area of the occupied space must contain compliant lighting controls to achieve any credits.
|-||The evidence below is not exhaustive, please also refer to the ‘BREEAM evidential requirements’ section in the scope of the Guidance for appropriate evidence types which can be used to demonstrate compliance.|
|All||Lighting plans, data sheets or schedules.|
|All||Photographic evidence of lighting controls.|
A room or space within the asset that is likely to be continuously occupied for 30 minutes or more per day by an asset user.
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