LRV stands for Light Reflectance Value and is a measure of the amount of visible light reflected by a surface. As a design professional you're probably well aware of this, but what you may be less familiar with is the effect that chosen colours can have on the integrity of the substrate beneath.
At Dulux, we seem to hear about a new type of certification on a monthly basis. Each has a different focus but often overlaps with other programmes. It's hard to decide which is most important when choosing a product, but here are some of the better known.