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Solar Tube Skylights
Solar tube skylights, also known
as light pipes and tubular
skylights, channel the light from
a small skylight, down through
a high reflectance duct, to a
ceiling mounted diffusing lens.
Solar tube skylights are
advantageous in deep roof
construction or when the area
to be lighted is too small for a
standard sized skylight.
Typical installations include
bathrooms and closets, but
multiple tubes can be installed
in larger rooms for a dramatic
effect.
The diffusing lens resembles a typical ceiling mounted glass fixture.
Most diffusers are round, but a transition box can used to convert
the round tubing to a square diffuser for suspended ceilings.
Solar Tube Skylight Cost
Factors that determine the cost of a solar tube installation are the
length and diameter of the tube, whether you install it yourself or
hire a professional, and the composition of your roof. If your roof is
tile or metal expect to pay 15 – 20% more for installation.
You can purchase a complete 14" diameter solar tube DIY kit for around $300.
Professional installation will run you half again as much, or $150. If you're purchasing
multiple units don't forget to ask for a discount.
Are Solar Tube Skylights a DIY Project?
The installation seems to be relatively straight forward; cut a hole in the roof for the
skylight, another in the ceiling of the room below for the diffuser, and connect the two
with the reflective duct. But this is not a project for novices; especially if your home has
a metal or tiled roof.
Will A Solar Tube Skylight Reduce My Electric Bill?
Yes, but the savings will be minimal. However, installing a solar tube in a highly
trafficked room like the bathroom will save you more money than one installed in a
closet.