When light is scattered as it passes through translucent diffusing materials such as GRP, or transparent materials that are modified to produce diffused light transmission, it does not necessarily reduce the levels of light transmission. It makes more efficient use of the available light by spreading it over a far greater area. This significantly reduces the apparent difference between light and shade and minimises the creation of shadows, thereby creating a more consistent and evenly lit space.
For information on daylight design for buildings, looking at recommended light levels, daylight factor considerations and energy savings, you can download the section from our technical manual here.
The next section of the technical guide discusses thermal transmission (U-value); a key specification consideration when looking at sustainable building design.