Use and Care Manual

Issue: It’s very humid and I am getting moisture
and condensation inside my Sun Tunnel skylight.
Resolution: Condensation on the dome end of
your Sun Tunnel skylight is normal with average
temperature and weather changes. Some
condensation is normal on the diuser end.
However, if you experience excessive amounts
of condensation, please contact VELUX
Technical Support for further assistance.
Issue: I keep getting bugs inside my
Sun Tunnel skylight.
Resolution: You’ll need to visually inspect the
Sun Tunnel skylight tubing to ensure there are
no exposed seams, holes, or tears.
Step 1: Visually inspect the Sun Tunnel
skylight tubing for any exposed seams, holes,
tears, or screw heads exposed.
Step 2: If you find any of these areas
uncovered, use aluminum tape to seal those
areas. Aluminum tape can be purchased at
your local hardware store.
Note: If you have a flexible tubing model, you
may also need to ensure the zip tie located
around the ceiling ring is secure. This should
prevent most bugs from getting into the tubing
space again.
Issue: The incoming daylight is too bright or
looks blue/yellow.
Resolution: VELUX oers six Decorative
Diuser options to soften incoming light. For
light that looks too blue or yellow, the Natural
Light Diuser adjusts the tint of the light
coming through.
Visit veluxusa.com/products/accessories/
sun-tunnel-accessories to view these options.
Once you decide on your desired decorative
diuser, you can call 1-800-888-3589 and
our team can assist you with your preferred
diuser option.
04 Troubleshooting
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