Why are Light Reflectance Values important?
The Equality Act 2010 requires that all new and refurbished public buildings and workplaces comply with current regulations, ensuring safe entry, exit and safe passage throughout the building. The regulations mean that people, regardless of disability, age or gender, must be able to gain equal access to public buildings.
For visually impaired people this means amongst other things that there must be a good visual contrast between various elements of the building, including doorways, fixtures and fittings. Therefore the contrast between, for example, floors and walls must achieve a certain level – measured by something called Light Reflectance Value (LRV).
What is LRV?
Visual contrast is measured by LRV, which is the acronym for 'light reflectance value'. The LRV of an object is a measure of the quantity of visible light at all wavelengths that is reflected from the surface when illuminated by a light.
Currently, the recommended difference in LRV values of two surfaces should be greater than 30 points. Where rooms provide adequate illumination measured to greater than 200 lux an LRV value no less than 20 would be acceptable. If further information or clarification is sought please refer to Document M - Part 2 and BS 8300 7.2.5
Certain fixtures need to contrast visually with the surface to which they are fixed so that they are easier to identify to those with partial sight. Even the floor and the walls need to contrast so that the user can more easily see where the boundaries of the room are.
To qualify, the two colours have to differ by more than 30 points. Where the surfaces are lit by more than 200 lux, the two colours must differ by a minimum of 20 points. And (to make things extra complex) “where door opening furniture projects beyond the face of the door or otherwise creates enhanced differentiation and shade, a minimum difference in light reflectance value of 15 points is considered adequate”, according to Doc M, Volume 2.
Latest Blog Posts
Which sling hoist is the best for me?
Learn the different types of sling hoist and how they’re used, ensuring the best match for your client's needs
How can I prevent my transport chairs from getting lost or stolen?
Learn the simple steps to protect your transport chair from theft or loss with the tools that keep your equipment safe
When does VAT exemption for disabled people apply?
Specialist equipment can be a big investment, especially when your client is funding it themselves
Can you get an elevating backrest on a shower trolley?
Beyond the basic functions of a shower trolley, positioning and comfort are two of the most important things to look for
Folding shower chairs for travel: What are the options?
Planning a holiday is never stress-free, but having the option to take a folding shower chair can make a big difference
Can you use the Turtle bath support with adults as well as children?
Bathing can be a huge challenge for anyone working in paediatric care
