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Visual contrast and light reflectance values
1.9NI-wide·Technical Booklet R Access to and Use of Buildings
Visual contrast is the perception of a difference visually between one element of a building and another by reference to their light reflectance values. Light reflectance value (LRV) is the total qua
accessibilityglazingprotection-from-fallingProtection from hazards on access routes
2.14NI-wide·Technical Booklet R Access to and Use of Buildings
To reduce hazards on an access route for people including those who are visually impaired, any – (a) door (other than for emergency use only) which opens outwards; (b) part of a window, when open in n
accessaccessibilityprotection-from-fallingProtection from areas below stairs and ramps on access routes
2.15NI-wide·Technical Booklet R Access to and Use of Buildings
Any area below the soffit of a stair or a ramp and its landings that is less than 2100 mm above an access route should be protected by a distinguishable barrier rail which incorporates either a vertic
stairsrampsaccessprotection-from-fallingVisual contrast and protection for transparent entrance doors
3.22NI-wide·Technical Booklet R Access to and Use of Buildings
Where an entrance door is manufactured from transparent or translucent materials and – (a) forms part of, or is adjacent to, a glazed screen, it should have its top and side face edges distinguishable
accessibilityglazingvisual-impairmentprotection-from-fallingProtection under stairs and ramps
4.9NI-wide·Technical Booklet R Access to and Use of Buildings
Any area below the soffit of a stair or a ramp and its landings that is less than 2100 mm above a circulation route, should be protected by a distinguishable barrier rail which incorporates either a v
stairsrampsprotection-from-fallingBalcony access for wheelchair accessible guest bedrooms
5.25NI-wide·Technical Booklet R Access to and Use of Buildings
Where a wheelchair accessible guest bedroom has a balcony, there should be access to it by a doorway – (a) that has a clear opening width that complies with Table 4.1; (b) with a level threshold that
flatshospitalityaccessibilityexternal-spaceglazingprotection-from-falling