Measuring light reflectance: Optimizing textile choices in Singapore HDB flats (metrics)

Light reflectance is the measure of how much light a surface bounces back. In Singapore HDB flats, optimizing light reflectance can make spaces feel brighter, more spacious, and reduce the need for artificial lighting, thus saving energy.

Light reflectance is typically measured using a spectrophotometer, which quantifies the percentage of light reflected at different wavelengths. This data is used to calculate the Light Reflectance Value (LRV).

LRV is a scale from 0 (absolute black) to 100 (perfectly reflective white) indicating the percentage of visible light reflected by a surface. Selecting textiles with higher LRV can significantly brighten a room.

For maximizing light, textiles with an LRV of 60 or higher are generally recommended. However, the ideal LRV depends on the rooms size, natural light availability, and desired ambiance.

Consider the texture and weave of the textile. Smooth, tightly woven fabrics tend to reflect more light than rough, loosely woven ones. Color also plays a significant role.

Many fabric suppliers provide LRV data for their products. You can also request a sample and test it under different lighting conditions in your HDB flat to see how it affects the rooms brightness.

Yes, by maximizing natural light and reducing the need for artificial lighting during the day, using textiles with high LRV can contribute to lower electricity consumption and cost savings.