LRV Colour Calculator
The recommended Light Reflectance Value (LRV) of a Stair Nosing colour (tread and/or channel) can be found from the guidelines in Building Regulation Documents K & M, and British Standards BS 8300, BS 9266 and BS 5395.
The colour of the Stair Nosing is required to differ from that of the floorcovering on the stairs. Every colour has a LRV between 0 (Black) and 100 (White). There should be at least 30 points difference between the Stair Nosing LRV and the floorcovering LRV, e.g. If the floorcovering has a LRV of 50, then the Stair Nosing should have a LRV of between 0–20 or 80–100. This creates a ‘ladder effect’ which helps the partially sighted when ascending or descending stairs. The Quantum Flooring Solutions range of tread and channel (uPVC) colours have LRVs, ranging from 5 to 81.
Enter the LRV number of your floorcovering into the LRV calculator below to find out which of Quantum Flooring Solutions’ tread colours will meet with Building Regulations guidelines.