Technical Specifications

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DOME
The dome is made of polymethacrylate,
a material resistant to mechanical
damage. The dome’s shape and height
is a combination of self-cleaning effect
and co-efficient of overall sun light
transmittance to building interior. The
low electrostatic activity of the dome’s
surface means that the dust adheres to
dome’s surface only lightly, so the rain
quickly washes the dirt away. The dome’s
shape also assists in the quick removal of
snow.
Light tunnel
with rigid light transmitting tube
Light tunnel SRT Plus consists of : dome, 3-element light transmitting tube- SRM-61cm, elbow SRK*,
ceiling frame, prismatic diffuser, SLO light kit and installation kit. The total length of elements connected in
straight line is 2.1m.
FLASHING
Flashing is used for a correct light tunnel
installation into the roof slope. Flashing ring
is equipped with drips openings which
can drain away the eventual condensate
outside the light tunnel. In the middle of
the flashing there is a reflective ring, the
first element of which reflects the light
entering into the light tunnel via a dome.
CEILING FRAME with diffuser
White ceiling frame and diffuser are the
only elements visible in the ceiling after
the light tunnel is installed. The sun’s
rays reflected from the walls of the light
transmitting tube are directed downwards
to the light diffuser. The main diffuser’s role
is to spread the light evenly throughout
the room. The light diffuser consists of
transparent and mat diffusers equipped
with UV filters.
Both (transparent and mat) diffusers are
placed inside the seal, which unites them
into one entity. Between the diffusers, there
is an air chamber,which plays the role
of insulation between the room interior
and light transmitting tube. It minimises
the level of condensation inside the light
transmitting tube.
RIGID LIGHT TRANSMITTING TUBE
Light transmitting tube is made of
aluminium, covered with a highly reflective
silver based layer, characterised by a high
efficiency light reflective factor, over 98%
(compared to a new mirror reflective factor
of 90-95%). The minimal light transmittance
losses enable SRT light tunnels with a tube
length of up to 12m to be applied. While
installing the light transmitting tube, there
is no need to cut it, because its design is
telescopic. In order to attain proper tube
length, it is possible to push one element
deeper inside the other. In case the tube is
longer than 4m, the use of SRC hangers is
advised.
ELBOW
The SRK elbow changes the angle of the
light transmitting tube anywhere between
0 – 65º.
SRT
PLUS
LIGHT TUNNEL
WITH RIGID
LIGHT
TRANSMITTING
TUBE
Installation pitches 15°-60°.
DIAMETER: DIAMETER:
250 350
250 350 550
SRT SRT
PLUS
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* For SRT 550 light tunnel, elbow SRK available only as an option
(is not included into basic set)