Daylighting is the practice of placing reflective surfaces, windows or other openings so that during the day natural light provides effective internal lighting. It is mainly lighting an indoor space with such openings as skylights and windows, allowing daylight into the building, chosen to save energy, to avoid adverse health effects of over-illumination by artificial lights like light bulb, and for aesthetics. Other types of electric lights like florescent lamps, LED’s, and other devices are replacing incandescent light bulb. Using the principles of daylighting lessens the amount of energy needed to provide lighting, thus reducing CO₂ emissions.

Sun tunnels, used in commercial and domestic properties like bathrooms and cloakrooms that receive very little light are fitted onto any type of roofs; they bring natural light from the outside into the room below, and are available with a flexible or rigid tunnel. Sun tunnels and skylights bring the outdoors into your homes and the infiltration of natural light and fresh air makes it seem more spacious and beautiful. Skylights are domes or horizontal windows, placed on the roof of buildings. They admit more light per unit area than windows, and distribute it more evenly over a space. The reflective tube skylight is an acrylic domed opening in a roof that admits light through a reflective tube that is normally 10-14” in diameter, a round skylight emerges from the roof as a half-sphere bubble.

10” Sun tunnels are ideal to light up closets, bathrooms, narrow kitchens, hallways and any area that is approximately 150 square feet, needing natural light. The adjustable, small sized rigid tunnel offers easy alignment and facilitates installation on complex rooflines. The 10” and 14” diameters easily fit between 16” on center farming. Normally the 10” size is best for lighting areas up to 10’ x 10’. The gasket and double lens provide even light distribution by minimizing the chance of condensation. The low profile dome design parallels the roof slopes for an attractive appearance.

The amount of light reflected through the sun tunnel depends upon many factors, the biggest factor being the time of day, as mornings and evenings you tend to collect less of the sunrays, as compared to the midday. A lot depends on the direction of the sun, weather condition, season of the year, orientation of the sun tunnel or tube and its length, tunnel angles, or even the diffuser panel on the interior. All of these factors are used to determine how to use daylighting to your advantage.