18 Jul '11, 8pm

green

There's at least one place in your house—a dark stairwell, a north-facing bathroom, a rear hallway—where you can't see what you're doing without turning on a light, even in the daytime. That's the ideal spot for a light tube, which lets you bring in the sun's rays without the hassle or expense of installing a conventional skylight. These so-called "sun tunnels" capture light through a plastic lens mounted on the roof, bounce it down through the attic inside a reflective tube, and beam it out through a plastic diffuser in the ceiling. From the inside looking up, you see what appears to be a no-frills light fixture. (Some models have bulbs inside, so you can get light day or night from the same spot.) True, you don't get a sky view, but you also don't have the energy loss associated with standard roof windows. Tubular skylights are much easier to install, because the tubing ...

Full article: http://greenhomeguide.com/know-how/article/15-green-proje...

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