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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-fallingGlazed entrance doors and glazed screens to accessible entrances
3.21NI-wide·Technical Booklet R Access to and Use of Buildings
Visually impaired people should be in no doubt as to the location of glass entrance doors, especially when the doors are within a glazed screen. The presence of the door should be apparent when it is
accessibilityglazingvisual-impairmentVisual 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-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