A precise answer depends on many factors including the roof orientation
(i.e. South is always best), tunnel length, tunnel angles, time of day, season
of the year, etc. However, generally the 10 and 14-inch diameter TGR and TMR
units are best for lighting up bathrooms, halls, walk-in closets and areas up
to 10' x 10'. The 22-inch diameter TCR model is perfect for lighting larger areas.
The same size rigid tunnel will always transmit more light than a flexible tunnel
of the same size, length and configuration.
Clouding or fogging of an insulating glass unit occurs when there is a break in
the inner seal between the glass panes. As a result condensation forms between the
two panes. Units manufactured after January 1, 2000 have a 20 year seal warranty.
If you encounter a problem with the seal of your glass, obtain the serial number
from the roof window or skylight and contact VELUX. We will be glad to help you
determine if your product warranty is still in effect, and what actions can be taken
to correct the issue with the seal.
Rigid tunnel VELUX SUN TUNNEL™ skylights are available in three different sizes.
In all there are three different sizes:
* 10-inch diameter (TGR and TMR)
* 14-inch diameter fits between 16" on center framing (TGR and TMR)
* 22-inch diameter fits between 24" on center framing (TCR low-slope units only)
Yes! The TGR and TMR are 2010 ENERGY STAR® qualified.
The flexible sun tunnel is the simplest and fastest way to install tubular devices available.
It easily bends around attic obstructions like pipes and wires making alignment between the
roof and ceiling simple.
The dome, flashing, tunnel, hardware and everything needed for a complete roof-to-ceiling
installation (including step-by-step instructions and labels) are all included.
There are no tools included in the kit.
Our VELUX SUN TUNNEL™ skylights come with a ten year warranty. For a complete
overview of all product warranties, visit our Warranty Info section.
TGR and TMR are designed for asphalt shingles and wooden shingles up to 5/16" (8 mm)
thick and roof pitches between 14°- 60° (3:12 - 20:12). The tile kits ZTG and ZTM
(available separately), expand the use of TGR and TMR to include profiled roofing
materials (tiles) with maximum 1 ¾" (45 mm) profile height.
Winter time means that lots of us get stuck indoors at home and work. Studies show
that natural, full-spectrum sunlight greatly contributes to increased productivity
in the workplace and to an overall feeling of well-being. Sunlight deprivation can
lead to a condition that experts call "Seasonal Affective Disorder," also known
as S.A.D. or the winter blahs. By bringing light from the sun into your house,
or home office, a VELUX SUN TUNNEL™ skylight can help you beat the winter blahs.